Kenwood DM-3090 Md Recorder Service Manal

In compliance with Federal Regulations, following arereproductions of labels on, or inside the product relating tolaser product safety,

KENWOOD-Corp. certifies this equipment conforms toDHHS Regulation No.21 CFR 1040.10, Chapter 1,Subchapter J.

DANGER : Laser radiation when open and interlockdefeated.AVOID DIRECT EXPOSURE TO BEAM.

*Refer to parts list on page 49.

STEREO MINIDISC RECORDER

DM-3090SERVICE MANUAL

© 1997-11/B51-5396-00 (K/K) 1812

MULTI CONTROL

TIME DISPLAY DISPLAY/CHARAC. TRACK/EDIT

ON/STAND BY


TIMER/DELETE ENTER

REC REC LEVEL

0 10

PHONES LEVEL

MIN MAX

PHONES

R

L

R

L

PLAYOUT

RECIN

DIGITAL LINE

2 REC IN 1 REC INPLAY OUT

OPT.

RESET

KENWOOD badge(B43-0302-04)

Front glass(B10-2457-08)

Front panel(A60-1370-08)

Knob (JOG)(K29-6946-08)

Knob (REC/HP)(K29-6947-08)

AC power cord bushing(J42-0338-08)

AC power cord *(E30-)

Optical digital output(W02-2643-08) Switch (RESET)

(S68-0091-08)

Analogue output terminal(E63-1031-08)

Optical digital input(W02-2643-08)

Knob (POWER)(K27-2261-08)

Knob(K27-2262-08)

Head phone jack(E11-0345-08)

Panel(A29-0898-08)

Digital input terminal(E63-1032-08)

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 2

If a problem occursIf this product is subjected to strong external interference(mechanical shock, excessive static electricity, abnormalsupply voltage due to lightning, etc.) or if it is operatedincorrectly, it may malfunction or the display may notfunction correctly. If such a problem occurs, do thefollowing:

• Unplug the AC power lead from the AC socket.• Wait about 20 - 30 seconds and then plug the AC power

lead back into the AC socket.• Press the reset key on the back of the unit.

• When the reset key is pressed, all of the settings in memorywill be erased.

R

L

R

L

PLAY

OUT

REC

IN

DIGITAL LINE

2 REC IN 1 REC INPLAY OUT

OPT.

RESET

RESET

Beware of condensationWhen water vapor comes into contact with the surface ofcold material, water drops are produced. If condensationoccurs, correct operation may not be possible, or the unitmay not function correctly.This is not a malfunction, however, and the unit should bedried.(To do this, turn the POWER switch ON and leave the unitas it is for several hours.)

Be especially careful in the following conditions:• When the unit is brought from a cold place to a warm place

and there is a large temperature difference.• When a heater starts operating.• When the unit is brought from an air-conditioned place to

a place of high temperature with high humidity.• When there is a large difference between the internal

temperature of the unit and the ambient temperature, or inconditions where condensation occurs easily.

6

1

9

+10

23

45

78

0

Remote control unit (1)(A70-1208-08)

Battery cover (A09-0337-08)

Audio cord (2)(E30-0505-05)

Optical fiber cable (1)(B19-1529-05)

Batteries (2)

DM-3090

2

CONTENTS/ACCESSORIES/CAUTIONS

CONTENTS/ACCESSORIES/CAUTIONS...................2CONTROLS .................................................................3DISASSEMBLY FOR REPAIR.....................................5BLOCK DIAGRAM .......................................................7CIRCUIT DESCRIPTION .............................................9TROUBLE SHOOTING ..............................................16

ADJUSTMENT ...........................................................24PC BOARD ............................................................... 32SCHEMATIC DIAGRAM ........................................... 37EXPLODED VIEW .....................................................47PARTS LIST...............................................................49SPECIFICATIONS .......................................Back cover

CONTENTS

Accessories

Cautions

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 3

Names and functions of parts

MULTI CONTROL

TIME DISPLAY DISPLAY/CHARAC. TRACK/EDIT

ON/STAND BY


TIMER/DELETE ENTER

REC REC LEVEL

0 10

PHONES LEVEL

MIN MAX

PHONES

1

2

3

4

5

6

7

8

9

0

!

@

#

$

%

^

1 Eject key:

2 Power switch (ON/STAND BY key)

3 Mini Disc Insertion slot

4 TIME DISPLAY key

5 DISPLAY/CHARAC key

6 TRACK/EDIT key

7 TIMER/DELETE key

8 Jog dial (Next/Previous)

9 ENTER key

0 Headphone jack (HONES)

! Headphone output level control

@ Record level control

# Record key:

$ Play/Pause key:

% Stop key:

^ Cue/Review key: /

−∞ TOC DISC

TOTALREMAINRANDOM TIMER REC CLOCK

TRACK DATE 0dB OVER12 4

MONO LP PRGM

1815

2916

31017

41118

51219

61320

714

1

2

3

4

5

6

7

8

9

0

!

@

#

$

%

^

&

*

(

1 Pause indicator:

2 Record indicator:

3 Play indicator:

4 Monaural Long-Play Mode indicator

5 Programme indicator

6 Repeat indicator:

7 Total Time/Remaining Time indicator

8 Random indicator

9 Timer Playback/Timer Recording indicator

0 Clock indicator

! Music Calendar

@ More Tracks indicator

# Recording Level indicator

$ Recording level too high indicator

% Level Meter/Character Information display

^ Date indicator

& Track indicator

* Disc Name indicator

) TOC Indicator: TOC

Front panelDisplay

Display

DM-3090

3

CONTROLS

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 6

Remote control unit

POWER

DISPLAY

TIMEDISPLAY6

1

9

+10

RECMODE

PLAYMODE

AUTOMARK

RECCANCEL

SYNCHROREC

REC

RECINPUT

TRACK EDIT TIMERENTER

PROGRAM

CLEAR

EJECT

2 3

4 5

7 8

0

SELECT

REMOTE CONTROL UNITRC-M0301

7

6

5

4

3

2

1

4 Basic operation keys

/

: Skip down/ Skip up (Cue/Review) key

REC : Record key

: Stop key

: Play/Pause key

PLAY MODE: Play mode key

7 Display keys

DISPLAY : Display key

TIME DISPLAY : Time displaykey

Model: RC-M0301Infrared ray system

PHONES

PHONES LEVEL

MIN MAX

The remote control unit incorporates the basic operation keys as well as a variety of applied operation keysso that it can be used in a wide range of purposes.Use care to store the remote control unit in a safe place so as not to lose it.

1 POWER key

2 EJECT key

3 Numeric keys

6 Recording operation keys

REC INPUT: Input select key

REC MODE: Record mode key

AUTO MARK: Auto mark key

REC CANCEL: Record cancelkey

Plug the stereo headphones (with standard-plug) available in audio stores into the PHONES jack and adjust the listening volumewith the PHONES LEVEL control on the front panel.

Listening through headphones

5 Applied operation keys

ENTET: Entet key

TRACK EDIT: Edit key

TIMER: Timer key

SYNCHRO REC:Synchro recording key

PROGRAM: Program key

DM-3090

4

CONTROLS

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 7

REMOVING AND REINSTALLING THE MAIN PARTS

MD MECHANISM SECTIONPerform steps 1 to 3 of the disassembly method to remove theMD mechanism.

How to remove the magnetic head(See Fig. 10-1)1. Remove the screws (A1) x 1 pc.10Caution:

Take utmost care so that the magnetic head is not damagedwhen it is mounted.

How to remove the cartridge holder(See Fig. 10-2)1. Open the roller arm lever in the arrow direction, and lower

the clamper lever to the rear side.2. Apply +5V to the red line side of blue connector of loading

motor, push the rack gear in the arrow direction to move thecam plate lever until tick is heard.

3. Remove the screw (B1) x1 pc., and the spring (B2) x1 pc.,fitted to the holder arm, and shift the cartridge holder to theleft side to remove it.

How to remove the mechanism switch PWB(See Fig. 10-3)1. Remove the screws (C1) x 2 pcs., and remove the mecha-

nism switch PWB.

Figure 10-1

Figure 10-2

Figure 10-3

MD Mechanism

(A1)x1ø1.7x5mm

Magnetic Head

Slider Lever

Cartridge Holder

Clampa Lever

Lack Gear

Roller Arm Lever

Loading Motor

Cam Plate Lever

(B1) x1Ø1.7x5mm

(B2) x1

(C1)x1Ø1.7x3mm

(C1)x1Ø1.7x9.5mm

MD MechanismSwitch PWB

DM-3090

5

DISASSEMBLY FOR REPAIR

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 10

How to remove the sled motor/loading motor(See Fig. 11-1)1. Remove the screws (D1) x 1 pcs., and remove the sled

motor/loading motor.

Caution:Be careful so that the gear is not damaged.(The damaged gear emits noise during searching.)

Figure 11-1

Figure 11-2

Figure 11-3

How to remove the spindle motor(See Fig. 11-2)1. Remove the screws (E1) x 3 pcs., and remove the spidle

motor.

Caution:Be careful so that the turntable is not damaged.

How to remove the optical pickup(See Fig. 11-3)1. Remove the screws (F1) x 3 pcs.

Caution:Be careful so that the gear is not damaged.(The damaged gear emits noise during searching.)

Sled MotorLoadingMotor

(D1)x2Ø1.7x2mm

(D1)x2Ø1.7x2mm

Spindle Motor

Turntable

(E1)x3Ø1.7x2.5mm

Optical Pickup

(F1)x3Ø1.7x9.5mm

DM-3090

6

DISASSEMBLY FOR REPAIR

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 11

Fig

ure 28B

LO

CK

DIA

GR

AM

(1/2)

D6.5/4.75 ~ 5.25V

MECHAN1SM6.5/4.75~5.25V

D3.2V

SYSCLKDVDDDVDD

D3.2V

DIGITAL3.2V

D3.2V

D4.3VD4.3V

D3.2V

D4.3V

D3.2V

BACKUP

VOLTAGEREGULATOR

POWER

IC1402S29294AE2PROM

IC1601M56758FP

5-CHMOTOR DRIVER

BACKUPMD MICRO COMPUTER

IC1401IX0227AW

MD SYSTEMMICRO

COMPUTER

DIGIN(EIAJ)

PDOWN

DIGOUT(EIAJ)

GND

GND12

43

BCLK

MUTE

DFS0

DADATA

LRCLKADDATA

DFS1

LOAD IN

RESETMD-STDSCKSERCH

12

242322212019

1817161514

456789

13

101112

3

D.GNDD.GNDD.GNDD.GNDDSTBMDDATA

KDATA

4MDRAM

ENDECATRACIC1201

LR37648

OSCILLATORXL1201

(33.8688MHz)

SW1956

SW1955

SW1954

SW1953

SW1952

Q1251~Q1254

MD

RECORDING HEAD

M901SPINDLE MOTOR

M902SLED MOTOR

M903

LOADING SWITCH

RECSWITCH

PLAYSWITCH

LEAD INSWITCH

A–BSIGNALE–FSIGNAL

RF1 ~ RF4SIGNAL

HEAD DRIVESIGNALIC1251

IC1101IR3R55

RFSIGNAL

PROCESSOR

LOADING MOTORHEAD UP/DOWN

M

M

DIRECT SWITCH

WRITE PRO

M

LASER DIODE

MONITOR DIODE

RF4RF3RF2RF1

LIGHTRECEIVINGSECTIONERRORSIGNAL

LIGHTRECEIVINGSECTION

RF

FABE

FOCUS

TRACKING

PICK UP UNIT

IC1202IX2474AF

CNP1904

CNP1902

IC1906AND GATE TC7ST08FIC1907CLOCK GENERATOR TC92ASFIC1990INVERTOR 74AC04FS

IC1916AND GATE74VHC08F

DM

-30907

BLO

CK

DIAG

RA

M

DM-3090(K) COVER 97.11.29 0:19 AM y[W 14

Fig

ure 29B

LO

CK

DIA

GR

AM

(2/2)

LINE INJ101

IC101NJM4560DOPE AMP

+7V

+7V

-7V

-7V

REC VOLVR901

SY

SC

LKA

D D

AT

ALR

CLK

BLC

KD

A D

AT

A

MO

DE

CLK DA

TA

Q601Q602

IC501REGULATOR

S81233YKJ301DIGITAL -IN(COAXIAL JACK)

SO302DIGITAL IN(OPTICAL JACK)

RX302DIGITAL OUT(OPTICAL JACK)

IC30174HCU04

INVERTER

IC302NAND GATE74HC10AP

DIGITAL IN

MD UNITDIGIN VCCDIGITAL OUT

Q503

A-7VPOWERCIRCUIT

MD+POWERCIRCUIT

5V SYSTEMPOWERCIRCUITBACK UP 5V

DIGITAL 5V

MD 5VMD+

S-I

D,S

YN

,RE

SE

T,D

ST

B,D

SC

K

K-D

AT

A,M

D D

AT

A

FL DISPLAY +BFL901

~ ~

~ ~

DIGSEG

JOG

KEY

RX-IN

IC901IX0196AWSYSTEM

MICROCOMPUTER

MD

MU

TE

SW901

JOGSWITCH

KEY INBLOCK

UN970REMOTESENSOR

FL VP(-31V)

A/D +5V

BACK UP +5V

FLPOWERCIRCUIT

FL VP(-32V) FL DISPLAY +B

RECTIFYINGCIRCUIT

F5511A L 250V

F5521A L 250V

T551POWER TRANSFORMER

AC 230V50Hz

HEADPHINESJ981

H.P.VOLVR981

IC651NJM4560DOPE AMP

Q451Q452 MUTE

J101LINE OUT

3

45

17

835

12 1916 13 15

2426

102

3

4

5 17

2

1

3

8

34

517

8

813

2

61310

17 21

21 42 60 89

45 90 92 97

2

3

6

32

10 33

96

91

100

~ ~

+7V-7V

IC201UDA1340AD/DA

CONVERTER

IC601LINE AMP.NJM4580D

Q502

Q506

Q504

A+7VPOWERCIRCUIT

3V

~

DM

-3090

8

BLO

CK

DIAG

RA

M

DM-3090(K) COVER 97.11.29 0:19 AM y[W 15

DM-3090

1 RF1 I

I

I

I

I

I

I

I

I

I

I

I

I

I

O

O

O

O

O

O

O

O

O

I

O

O

O

O

–

–

–

–

–

–

–

–

–

–

I

–

I

O

O

O

O

–

O

O

RF signal input terminal 1 Input of RF signal output of pickup

2 RF2 RF signal input terminal 2 Input of RF signal output of pickup



5 REFI Reference voltage amp. input terminal

6 REFO Reference voltage amp. output terminal

7 RFADD RF1 to 4 resistance addition output terminal

8 TCGI Track cross detection signal amp. input terminal for groove

9 AIN Servo signal amp. (focus servo system) inversion input terminal

10 BIN Servo signal amp. (focus servo system) inversion input terminal

11 EIN Servo signal amp. (tracking servo system) inversion input terminal

12 FIN Servo signal amp. (tracking servo system) inversion input terminal

13 BIAS Bias input terminal

14 AVCC Analog section power terminal

15* VSTBY Logic signal output terminal (STBY signal inversion signal is output.)

16* XDISC Logic signal output terminal (DISC signal inversion signal is output.)

17* XSGAIN Logic signal output terminal (SGAIN signal inversion signal is output.)

18 AGND Analog section GND terminal

19 DGND Digital section GND terminal

20 DTEMP Chip temperature detection terminal

21 LATCH Latch signal input terminal

22 CLOCK Clock signal input terminal

23 DATA Serial data input terminal

24 DVCC Digital section power terminal

25 FOUT Servo signal amp. (tracking servo system) output terminal

26 EOUT Servo signal amp. (tracking servo system) output terminal

27 BOUT Servo signal amp. (focus servo system) output terminal

28 AOUT Servo signal amp. (focus servo system) output terminal

29 TCGO Track cross detection signal amp. output terminal for groove

30 WBO Comparator output terminal for ADIP signal binary-coding

31 22KI Comparator input terminal for ADIP signal binary-coding

32 22KO ADIP signal HPF amp. output terminal

33 ADLPFO ADIP signal LPF amp. output terminal

34* NC NC

35 ADIPO ADIP signal primp. output terminal

36 ADIPI ADIP signal AGC amp. output terminal

37 ADAGC ADIP signal AGC smoothing capacitor connection terminal

38 ADAGI ADIP signal AGC amp. input terminal

39 RF2-1 RF1 and RF2 difference signal

40 EFMO RF signal primp. output terminal

41* WFMI RF signal AGC amp. output terminal

42 AVCC Analog section power terminal

43 AGND Analog section GND terminal

44 EFMAGC EFM signal AGC smoothing capacitor connection terminal

45 EFMAGI EFM signal AGC amp. output terminal

46* ATTR Pins 47 and 48 output signal attenuation terminal

47 GOUT Output of signal of RF1+RF2-RF3-RF4 for groove

48 POUT Rf1 to 4 resistance addition output for pit

IC1101 VHiiR3R55//-1:RF Signal Control (IR3R55)

Pin No. Terminal Name I/O Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

CIRCUIT DESCRIPTION

9

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 38

DM-3090

1* EFMMON Output EFM monitor output

2 AVCC — Analog power

3 EFMI Input EFM signal input from RF amp.

4 AGND — Analog GND

5 AIN Input Focus error signal A

6 EIN Input Tracking error signal E

7 TCG Input Track cross signal

8 BIN Input Focus error signal B

9 FIN Input Tracking error signal F

10* VBAT Input Power voltage detection signal for constant voltage servo

11 WBI Input ADIP wobble signal

12 VDD1 — Digital power

13 DGND — Digital GND

14,15 TEST0,TEST1 Input Input for test. Connection to GND in case of normal use

16 TEST2 Input Input for test. Endecode/servo mode and ATRAC mode selection

17 X176KO Output Clock output. f=176.4 kHz (4fs)

18 FODRF Output Focus servo forward output. PWM

19 FODRR Output Focus servo reverse output. PWM

20 TRDRF Output Tracking servo forward output. PWM

21 LATCH Output Tracking servo reverse output. PWM

22 CLOCK Output Slide servo forward output. PWM

23 DATA Output Slide servo reverse output. PWM

24 DVCC Output Spindle servo forward output or spindle servo output. PWM

25 FOUT Output Spindle servo reverse output or spindle rotation (forward/reverse)selection

26 EOUT Output Address output to external D-RAM. ADR3

27 BOUT Output Address output to external D-RAM. ADR2

28 AOUT Output Address output to external D-RAM. ADR1

29 TCGO Output Address output to external D-RAM. ADR0 (LSB)

30* WBO Output Address output to external D-RAM. ADR10 (MSB)

31 22KI — Power supply for DRAM interface

32 22KO Output Address output to external D-RAM. ADR4

33 ADLPFO Output Address output to external D-RAM. ADR5

34 NC Output Address output to external D-RAM. ADR6

35 ADIPO Output Address output to external D-RAM. ADR7

36 ADIPI Output Address output to external D-RAM. ADR8

37 ADAGC Output Data output enable signal output to external D-RAM

38 ADAGI — Digital GND

39 RF2-1 Output Column address strobe signal output to external D-RAM

40 EFMO In/Output Data input/output from and to external D-RAM. D2

41 WFMI In/Output Data input/output from and to external D-RAM. D3 (MSB)

42 AVCC Output Data input/output from and to external D-RAM. ADR9

43 AGND Output Low address strobe signal output to external D-RAM

44 EFMAGC Output Data write enable signal output to external D-RAM

45 EFMAGI In/Output Data input/output from and to external D-RAM. D1

46 ATTR In/Output Data input/output from and to external D-RAM. D0 (LSB)

47* GOUT Output Track cross signal

48* POUT Output ADIP CRC error flag monitor output

49* PLCK Output EFM PLL clock output in playback mode

50 EFM0 Output EFM signal output in record mode. C1F (C1 error flag) monitor output in playback mode

51* X700KO Output Clock output. f = 705.6 kHz. Clock output is not performed when RSTX = 0.

52* EXPORT0 Output Microcomputer extension output port 0

53* EXPORT1 Output Microcomputer extension output port 1

IC1201 VHiLR37648/-1:ENDEC/ATRAC (LR37648)

Pin No. Terminal Name Function


Input/Output

CIRCUIT DESCRIPTION

10

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 37

54 TESO1 Output PLLLR. Microcomputer extension output port 2 in case of selection

55 TESO3 In/Output PLLOSC. Microcomputer extension output port 3 in case of selection

56 TEST4 In/Output EXTCLK. Microcomputer extension output port 4 in case of selection

57 CDDATA In/Output High speed dubbing CD data input. Microcomputer extension output port 5 in case of selection

58 CDLRCK In/Output High speed dubbing CD LR data input. Microcomputer extension output port 6 in case of selection

59 CDBCLK In/Output High speed dubbing CD bit data input. Microcomputer extension output port 7 in case of selection

60 VXI Input Vari-pitch PLL clock input

61 VPO Output Vari-pitch PLL phase error output



64 XI Input Oscillation circuit input. 33.8688 MHz

65 XO Output Oscillation circuit input. 33.8688 MHz

66 DIN Input Digital input signal

67 DOUT Output Digital output signal

68 VDD3 — Power for internal PLL


70 LRCK Output Music data Lch/Rch selection output

71 BLCK Output Music data shift clock

72 DFCK Output AD/DA converter digital filter clock. 256 Fs

73 ADDATA Input Audio data input

74 DADATA Output Audio data output

75* FEMON Output Focus error signal monitor output

76* TOTMON Output Total signal monitor output

77* TEMON Output Tracking error signal monitor output

78* SBCK Input DIN subcode read clock. EIAJ CP-309 Format

79* SBO Output DIN subcode serial data. EIAJ CP-309 Format

80* SBSY Output DIN subcode block sync signal. EIAJ CP-309 Format

81 SFSY Output DIN subcode frame sync signal. EIAJ CP-309 Format

82 FOK Output Focus OK detection signal. "0" : Focus OK

83 SENSE Output Servo status detection signal. "1": Auto-move, auto-jump, auto-focus retraction

84 COUT Output Track cross signal output

85 MCCK Output Microcomputer clock output. Clock output is performed also when RSTX = 0.

86 DINTX Output System controller interface interruption request output terminal



89 RSTX Input Chip reset input. "L": Reset

90 SYD0 In/Output System controller interface data bus terminal (LSB)

91~96 SYD1~SYD6 In/Output System controller interface data bus terminal

97 SYD7 In/Output System controller interface data bus terminal (MSB)

98 SYWRX Input System controller interface register writing pulse input

99 SYRDX Input System controller register read pulse input

100 SYRS Input System controller interface register selection input



Input/Output

DM-3090

11

CIRCUIT DESCRIPTION

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 18

1* P96/ANEX1 Output Not used

2* P95/ANEX0 Output Not used

3 P94/DA1 Output LDVAR (laser power adjustment output)

4* P93/DA0 Output ADJS (for automatic adjustment step check)

5* P92/TB2IN Output Not used

6 P91/TB1IN Input LD SW CK input (interruption input only in single state)

7 P90/TB0IN Input ERR input (monitor PLL UNLOCK)

8 BYTE Input GND

9 CNVss Input GND

10* P87/XCIN Output ST-ID Output

11* P86/XOUT Output MD search output

12 RESET Input RESETInput

13* XOUT — Extal clock output

14 Vss — GND

15 XIN Input EXTAL (8.4672 MHz)

16 Vcc — + 3.15V

17 P85/NMI Input Connect +B

18 P84/INT2 Input DINT (interruption input from MD LSI)

19 P83/INT1 Input DSENSE (servo sense input from MD LSI)

20 P82/INT0 Input ST-ID Input (MD-ON)

21 P81/TA4IN Input CD search input (syncro REC suspension input from MD LSI)

22 P80/TA4OUT Output MD RSW Output

23* P77/TA3IN Input FSW1 (SW power frequency selection)

24 P76/TA3OUT Output Vari-pitch correspondence given (H)/not given (L)

25 P75/TA2IN Input P-DOWN (power failure detection)

26 P74/TA2OUT Output HDON (magnetic head current ON/OFF output)

27 P73/TA1IN Output LD+ (loading motor + control output)

28 P72/TA1OUT Output LD- (loading motor + control output)

29 P71/TA0IN Input CIN (track count signal input)

30 P70/TA0OUT Input INN SW (inner SW detection input)

31 P67/TXD1 Output R-DATA

32 P66/RXD1 Output R-LATCH

33 P65/CLK1 Output R-CLK

34 P64/CTS1/RTS1/ Output DSTB (system controller communication enable and communication beingexecuted)CTS0/CLKS1

35 P63/TXD0 Output MD DATA (MD Data Output)

36 P62/RXD0 Input K DATA (system controller data input)

37 P61/CLK0 Input DSCK (system controller communication clock input)

38 P60/CTS0/RTS0 Input 4M/16M DRAM selection input

39 P57/RDY/CLKOUT Output R/P output (REC/PLAY selection)

40 P56/ALE Input FOK (focus servo status monitor input)

41* WFMI Input/Output Not used

42 AVCC Output S2 Ouput

43 AGND Output S1 Output

44 EFMAGC Output SYRS (MD-LSI register selection signal output)

45 EFMAGI Output SYRD (MD-LSI read signal output)

46 ATTR Output SYWR (MD-LSI right signal output)

47 GOUT In/Output SYS D7 (data bus 7)

48 POUT In/Output SYS D6 (data bus 6)

49 PLCK In/Output SYS D5 (data bus 5)

50 EFM0 In/Output SYS D4 (data bus 4)

51 X700KO In/Output SYS D3 (data bus 3)

IC1401 RX-iX0227AWZZ:MD System Microcomputer (IX0227AW) Pin No. Terminal Name Function


Input/Output

DM-3090

12

CIRCUIT DESCRIPTION

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 19

DM-3090

52 P42/A18 In/Output SYS D2 (data bus 2)



55* P37/A15 Output Not used



58 P34/A12 Output EEPRO (EEPROM protection cancel)

59 P33/A11 Output EPCS (EEPROM chip selector output)

60 P32/A10 In/Output EEPD (EEPROM sirial data output)

61 P31A9 Output EEPK (EEPROM sirial colck output)

62 Vcc Input + 3.15V


64 Vss — GND

65* P27/A7 Output L3 DATA (soft serial communication, 2 modes provided, LSB fast)

66* P26/A6 Output L3 MODE (soft serial communication, 2 modes provided, LSB fast)

67* P25/A5 Output L3 CLK (soft serial communication, 2 modes provided, LSB fast)



70 P22/A2 Output PCNT0 output


72 P20/A0 Output LDON output (H: ON)

73 P17/D15 Output ANLPTR output

74* P16/D14 Output ADPON output (for CK)

75* P15/D13 Output DAPON output (for CK)

76 P14/D12 Output DFS0 output

77 P13/D11 Output DFS1 output

78* P12/D10 Output DIG EX output (for CK)

79* P11/D9 Output DIG CD output (for CK)

80 P10/D8 Output XRST (system reset output)

81* P07/D7 Output AD MUTE output (for CK)

82* P06/D6 Output EMPHA output (for CK)

83* P05/D5 Output DA MUTE output (for CK)

84 P04/D4 Output MUTE output

85* P03/D3 Output DOUTM output (for CK)

86 P02/D2 Input TEST2 (special mode selection 2)



89 P107/AN7/KI3 Input AVCK3 (special mode monitor input)

90 P106/AN6/KI2 Input AVCK2 (AD/DA section 3.1V monitor input)

91 P105/AN5/KI1 Input AVCK1 (DOUT section 5V monitor input)

92 P104/AN4/KI0 Input DTEMP (temperature detection input)

93 P103/AN3 Input MINF (disc type/REC input)

94 P102/AN2 Input TEST K1 (test key input 1)

95 P101/AN1 Input TEST K2 (test key input 2)

96 AVss — GND

97 P100/AN0 Input HINF (mechanism position/HEAD position)

98 VREF — + 3.15V

99 AVcc — + 3.15V

100 P97/ADTRG Input Connect +B



Input/Output

CIRCUIT DESCRIPTION

13

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 40

DM-3090CIRCUIT DESCRIPTION

14

IC901 RH-iX0196AFZZ: System Control Microcomputer (iX0196AW) Pin No. FunctionPort Name Input/OutputTerminal Name


1* P77/AN7 KEY1 Output Not used

2 P76/AN6 KEY2 Input Key entry

3 P75/AN5 KEY3 Input Key entry

4* P74/AN4 — Output Not used

5 P73/AN3 INI Input Initial setting entry

6 P72/AN2 JOG_AD Input Jog dial entry

7*,8* P71/AN1,P70/AN0 — Output Not used

9* PB3 — Output Not used

10 PB2/DA DIG SEL1 Output Digital signal selector selection signal

11* P57/SRDY3/AN15 DIG SEL2 Output Not used

12* P56/SCLK3/AN14 — Output Not used

13* P55/SOUT3/AN13 — Output Not used

14 P54/SIN3/AN12 DAC_MODE Output Externally provided DAC/ADC serial interface mode signal

15 P52/SRDY2/AN11 DAC_CLK/EX Output Externally provided DAC/ADC serial interface clock signal

16 P52/SCLK2/AN10 DAC_DATA/EX Output Externally provided DAC/ADC serial interface clock signal

17* P51/SOUT2/AN9 — Output Not used

18 P50/SIN2/AN8 DFS0/DFS1 Input EMPHASIS information from MD

19 P67/SRDY1/CS/ DSTRB Input MD serial interface strobe signalSCLK12

20 P66/SCLK1 DSCK Output MD serial interface clock signal

21 P65/SOUT1 K-DATA Output MD serial interface transmission signal

22 P64/SIN1 MD-DATA Input MD serial interface reception signal

23 P63/CNTR1 MD-LO/EJ Output MD loading power voltage selection signal

24* P62/CNTR0 — Output Not used

25* P61/PWM — Output Not used

26* P60 — Output Not used

27* P47/T3OUT — Output Not used

28* P46/T1OUT — Output Not used

29 P45/INT1/2CR P IN Input Power failure detection

30* P44/INT4 P.CNT Output Power control

31 P41 P-OUT Output MD power failure detection signal

32 P42/INT2 RX-IN Input Remote control loght reception signal

33 P41 P-MUTE Output Audio mute control signal

34 P40/INT0 — Input GND

35 RESET RESET Input RESET signal entry

36 PB1/Xcin Xcin Input Sub clock IN connection (32.7k)

37 PB0/Xcout Xcout Output Sub clock OUT connection (32.7k)

38 Xin Xin Input Main clock IN connection (8M)

39 Xout Xout Output Main clock OUT connection (8M)

40 VSS VSS Input GND

41 P27 SERCH Output CD to MD search monitor signal

42 P26 LOAD Input MD loading detection

43 P25 S-ID Output CD to MD start ID signal

44 P24 MD RESET Output RESET signal to MD

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 39

DM-3090CIRCUIT DESCRIPTION

15

Pin No. FunctionPort Name Input/OutputTerminal Name

72-80 P97/SEG23- S0-S8 Output Segment for FL driveP90/SEG16


89,90 PA7/SEG7, S17,S18 Output Segment for FL drivePA6/SEG6

91 VCC VCC Input +5V

92-97 PA5/SEG5- S19-S24 Output Segment for FL drivePA0/SEG0

98 VEE VEE Input -30V

99 AVSS AVSS Input GND

100 VREF VREF Input +5V

45-54 P23/DIG19- UDIG0-UDIG9 Output Digit for FL driveP12/DIG10

55,56 P11/SEG41/DIG9, UDIG10,UDIG11 Output Digit for FL driveP10/SEG40/DIG8

57-60 P07/SEG39/DIG7- UDIG12-UDIG15 Output Digit for FL driveP04/SEG36/DIG4

61-64 P05/SEG35/DIG3- S35-S32 Output Segment for FL driveP00/SEG33/DIG0


DM-3090(K) COVER 97.11.29 0:20 AM y [ W 42

DM-3090TROUBLE SHOOTING

16

BLANK MD

Can't COPY

Can't EDIT

Can't REC

DEFECT

Din UNLOCK

DISC ERR

DISC FULL

FOCUS ERROR

MECHA ERR**

NAME FULL

NO DISC

NOT AUDIO

PLAYBACK MD

PROTECTED

TEMP OVER

TOC ERR**

TOC FULL**

TOC W ERROR

U TOC ERR**

U TOC W ERR

? DISC

0-00:00

**Number or symbol

Error messages Meaning Remedy Nothing is recorded.

•

•

No copy can be made because of the SCMS copyrightsystem.

• A track cannot be edited.

• Recording cannot be pertormed correctly due tovibration.

• Since this MD has scratches on it, the recordingoperation was skipped.

• Poor connection of the digital cable.

• The disc damaged.• The TOC information is not recorded on the disk or the

date contains.

• The MD is out of recording space.

• A MD has not been loaded.• The disc data cannot be read.

• There is a mechanical problem and the disc is workingproperly.

• The number of characters for the MD name or trackname exceeds 40.

• MD has not been loaded.• MD data cannot be read.

• The data recorded on this disc is not audio data.

• You tried to record on a playback-only disc.

• The MD is write protected.

• The temperature is too high.

• The MD is excessively damages

• There is no space left for recording character infomation(track names, disc names, etc.)

• Trouble has occurred.

• The TOC infomation on this disc does not meet theMD specifications or it cannot be read.

• The TOC infomation could not be created properly dueto a mechanical shock or to scratches on the disc.

• The MD contains an error.

• Music is not being recorded.

• Replace the MD wiht a recoded disc.

• Record using the analogue cable.

• Change the stop position of the track and then tryediting it.

• Stop vibration and try again.

• Replace the disc with another recordable disc.

• Connect the digital cable securely.

• Reload the disc or replace it.

• Replace the disc with another recordable disc.

• Reload the MD.

• Reset the microprocessor referring to "If a problemoccurs".

• Shorten the MD or track name.

• Load a MD.• Reload the MD.

• Select another track.• Replace the MD.

• Raplace it with a recordable MiniDisc.

• Move the write protection tab back to its originalposition.

• Turn off the power, and wait for a whilst.

• Replace the disc with another disc.

• Replace the MD with another recordable disc.

• Contact a KENWOOD Authorized Sevicing Dealer orKENWOOD Authorized Sevice station.

• Replace it with another MD.• Erase all the data, and try recording.

• Turn off the power, and try to write the TOC-information again. (Remove any source of shock orvibration whilst writing.)

• Replace the disc with another disc.

• Replace the disc with a recorded disc.

When an error message is displayed, proceed as follows:

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 41

• Defect occurred successively 10 times during REC-PLAY.• As a result of occurrence of defect during REC-PLAY the

recordable cluster became zero.• Adress is unreadable. REC state connot be set for 20 seconds

although retry is repeated.

• The following judgement is made according to the channelstatus of digital signal which was input from D-IN during REC-PAUSE or REC-PLAY.(1) Other than audio signal(2) Other than signals of home-use appliances(3) Copy NG due to inversion of copy bit in CD.

• The digital signal which was input from D-IN during REC-PAUSE, REC-PLAY or CD FUNC playback caused thefollowing.(1) PLL of digital IN was unlocked.(2) Locking occurred in condition other than FS = 44.1 kHz

• There were no areas to record music or characterinfomation.(music name, disc name, etc.) during REC-PLAY.

• When an attempt to start is made, recordable area does notremain.

• ETNO > LTNO• FTNO ≠ 0 or 1• UTOC recorded on disc could not be read.

• Start address > End address

• Any data of UTOC 0 to 4 looped.

• Nonaudio data was recorded in the track mode of currentlyselected TNO.

• Data "MINI" of system ID which has been written in TOC withASCII code is not correct.

• The disc type written i TOC does not correcpond to pre/mastered MD, recording MD and hybrid MD.

• When an attempt to set REC-PAUSE was made, there were norecordable areas.

• An attempt to set REC-PAUSE or to start editing was made onthe playback-only disc.

• An attempt to record or edit was made on the record/playbackdisc with its careless rease preventing tab being in reasepreventing state.

• An attempt was made t oedit the track which was write-protected by information written in UTOC.

• Specific editing conditions were not satisfied.

• Owing to occurrence of some trouble internal temperature ofset (MD unit) rose excessively.

• Read data was not correct or data could not be read correctly.• Trouble occurred during recording if music data, resulting in

EXPLANATION OF ERROR DISPLAYError display Errors Corrective action

Can't REC

Can't COPY

Din UNLOCK

TOC FULL

UTOC ERR R

UTOC ERR A

UTOC ERR L0~4

NOT AUDIO

? DISC

DISC FULL

PLAYBACK MD

PROTECTED

Can't EDIT

TEMP OVER

DISC ERR RD PA

• Check that the disc is free from flaw, dustand fingerprint.Check whether there is any black spot.Check for disc disalignment and run-out.

• Check whether CD is copy-inhibited one.(An exabple: CD-R)

• Check whether there is any abnormalityin the D-IN signal line.

• Replace the disc with a recording/playback disc in which an area to registerUTOC remains.

• UTOC data is not normal. Replace thedisc with other disc.



• Select other TNO or replace the disc withother disc.

• The loaded disc is not applicable.Replace the disc, and check.

• Replace the disc with other recording discin which recording area remains.

• The loaded disc is a Playback-only disc.Replace the disc with a recording disc.

• Return the careless erase preventing tabto its initial position, and redo.

• The track on which an attempt to edit wasmade is a write-protected track. Redo onanother track.

• The applied operation procedure is notproper. Redo, applying the ocrrectprocedure.

• Check by troubleshooting.• Check whether the ambient temperature

is too high.

• Data of TOC or UTOC is not normal ordisc las flaw. Replace the disc with other

record failure.WR disc.

DM-3090

17

TROUBLE SHOOTING

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 22

• UTOC was read but total TNO and the number of characters ofNAME was 0?

• Focusing error was caused by shock during REC-PLAY.

• Although UTOC can be read but UTOC cannot be rewritten.

• Data of EEPROOM is not correct.

Error display Errors Corrective action

BLANK MD

DEFECT

TOC W ERROR

MD ERROR

• Perform recording to check that the discis recordable disc.

• Check that the disc is free from flaw,dust, fingerprint and black spot. Checkfor disc disalignment and run-out.

• Check that the record head contact isnormal. Check that there is no brokenwire between PWB and the recordinghead.

• Once reset, and redo. If error occurspersistently, replace EEPROM.

EXPLANATION OF MECHANISM ERRORError display Errors

M E C H A _ E R R 1 _ * Ejection failureM E C H A _ E R R 2 _ * Head-up failureM E C H A _ E R R 3 _ * Head-down failure

HINF (IC1401 97 PIN)* = E Ejection completion position < 1.3 V* = MHorizontal midway position > 3.06 V* = L Load completed position 1.853~2.48 V* = D Head-down position 1.3~1.853 V

• TOC was read but data was not correct.• TOC could not be rad.

• Trouble occurred during rewriting of UTOC, resulting in UTOCrewriting failure.

• After the disc was loaded, focusing failure occurred.

TOC ERR STOC ERR RTOC ERR T

UTOC W ERR

FOCUS ERROR

• The TOC information recorded on discdoes not conform to the MD standard.Replace the disc with other disc.

• The disc has flaw. Replace the disc withother disc.

• The disc has flaw. Replace the disc withother disc.

• Check that the disc is free from flaw,dust, fingerprint and black spot.Check for disc disalignment and run-out.

DM-3090

18

TROUBLE SHOOTING

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 23

Is power turned on when the remote control or main unitPOWER button is pressed? No

Check as stated in item "POWER turning-on failure".

Check as stated in "Disc Loading is nor normal".No

Yes

Is disc loading normal?

Yes

NoCheck as stated in item "Playback state cannot be set".Is playback state set when the PLAY/PAUSE button is

pressed?

Is audio output normal? Check as stated in item "Audion playback circuit".No

Is record and playback operations normal?

Yes

Check as stated in item "Record playback operations".No

Yes

When MD fails operateIf the objective lens of optical pickup is contaminated, MD may fail to operate. At first, clean the objective lens to check playbackoperation. If MD fails persistently to operate, perform checks as follows.If dust or foreign substance is accumulated on the pickup lens, playback is disturbed and indication of TOC (content of tracks) maybe disabled. Before adjusting check that the lens is clean. If the lens is contaminated, treat it as follows.

Turn off power supply, impregnate the lens cleaning paper with a small quantity of isopropyl alcohol, and gently wipe the lens withit with due care so that the lens is not damaged. At this time do not touch the lens directly with your finger.

• Power turning-on failure.

Is normal operation performed when the main unit POWER ispressed? Yes

Check the remote controller and display PWB.

No

Check the main PWB and CNS1902.Is +5V applied to the pins 15 and 16 of CNS1902?

NoIs pulse given to the pin 5 of CNS1902? Check the display PWB, main PWB and CNS1902.

Is +3.2V applied to the pin 62 of IC1401? Check the periphery of IC1401.

Yes

YesNo

Is 8.4672 MHz pulse applied to the pin 15 of IC1401? Check IC1201.No

Yes

Yes

NoCheck IC1401.Is pulse output from the pin 34 of IC1401?

Yes

No

Check CNP471 and system PWB.

Yes

OK

DM-3090

19

TROUBLE SHOOTING

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 26

• Disc loading is not normal.

Is disc loaded when it is inserted?

No

Yes

NoCheck IC1401.

NoCheck CNP1601 and SW1956.

Yes

NoCheck CNP1604 and IC1601.

Yes

Check CNP1604 and CN1604

No

Yes

No

Yes

Is change observed on the pin 23 or 24 of IC1601?

Is change observed on the pin 30 or 31 of IC1601?

Is ejection performed when the MD taking-out button ispressed?

Yes

Disc retracts soon after completion of disc ejection.

Yes

Check CNP1601 and SW1956.

Is the pin 4 of CNP1601 set to L state?

• Playback state cannot be set.

Is it impossible to set both high reflection disc and lowreflection disc to playback state? Yes

Check as stated in item "TEST mode check".

No

Only the high reflection disc cannot be played back.

Yes

Is 1.02V±0.3V (high reflection disc) applied to the pin 93 ofIC1401 in the TEST mode where the high reflection disc hasbeen inserted?

Only the low reflection disc cannot be played back.

Is 3.2V±0.3V(record enabied) or 2.06V± 0.3V (record disabled)applied to the IC1401 pin 93 after the low reflection disc has beenset?

No

Yes

No

After adjustment check as stated in item "Normal playback". Check SW1951A/B, mechanism switch PWB, and CNP1601.

Yes

Yes No

DM-3090

20

TROUBLE SHOOTING

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 27

Yes

• Normal playback

Is initialization performed normally when high reflection disc isplayed back?

Does disc rotate normally?

No No

Check IC1201

Is lead-in switch turned on in the TEST mode when the pickup is onthe innermost periphery (Is the pin 6 of OC1401 on L level?)No

No

Check SW1953, mechanism switch PWB soldering joint, andCNP1601 pin 1 periphery.

Is an attempt to read repeatedly the TOC section of low reflectiondisc made?

Since the TOC section has not been recorded on the new disc,replace it with recorded low reflection disc.No

Yes

Check the assembly position of "lead-in switch (sw1953)

Yes

When it has been confirmed that EEPROM value is normal in the TEST mode

Does the playback time display advance?

• Audio playback circuit

Yes

No

Is audio output waveform observed on the pins 22 and 24 ofCNS1902?

Check connection between IC1701 and CNS1902.No

Check the main PWB.

Yes

When sound is not output although the playback time display advances during

(Except DM-3090)

playback in the normal mode.

Is audio output waveform observed on the pins 24 to 26 ofIC1701?

Check the pins 70, 71, 72 and 74 of IC1201, and the pins12, 16, 17, and 19 of IC1701.

DM-3090

21

TROUBLE SHOOTING

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 30

DM-3090

22

TROUBLE SHOOTING• Record and playback operation

Insert the low reflection disc, and after verifying the audio output in the normal mode playback set the record/playback TEST mode

Recording from start address cannot be performed.

YesNo

Check whether the disc is record-prohibited.

Is RF waveform output to the pin 1 IC1201 or TP1274 whenplayback is performed after recording?

No

Does RF pattern appear on the pin 50 of IC1201?

Yes

No

NoCheck for IC1201 soldering failure.

Yes

Is input waveform given to the pins 18 and 20 of CNS1902

(Except MD-3090 below this item)

inAUX input record in the NORMAl mode?

Is input waveform given to the pins 3 to 5 of IC1701?

Yes

NoCheck the main PWB.

NoCheck connection between IC1701 and CNS1902.

Check the periphery of IC1701, check the pins 70, 71, 72,and 73 of IC1201.

Yes

Yes

Does the level of pins 3 and 26,39 of IC1401 and the pins 9and 19 of CNS1101 in record state differ from that inplayback state?

Check the IC1251, Q1251 to 1254 and CNS1252.

Check periphery of IC1401 and CNS1101.

Check waveform on the pins 9 and 10 of IC1101 and soldering joint.

• Focus servo failure

Is waveform on the pins 27 and 28 of IC1101 normal in the TESTmode (MANUAL auxiliary adjustment mode : step 9)

focus gain coarse adjustment step?

Check waveform on the pins 8 and 9 of IC1201 and soldering joint.Is level of pin 81 of IC1201 changed from H to L?Is pulse waveform output to the pin 82 of IC1201?

Does the pulse waveform duty of pins 18 and 19 of IC1201change? Does waveform of pin 7 of IC1602 change?

Check soldering joint and part of IC1201.

No

No

No

Does waveform change on the pins 12 to 15 of IC1601? Check soldering joint and part of IC1601.No

Does waveform change on the pins 2 and 4 of CNS1101? Check CNS1101 and pickup.No

OK

Yes

Yes

Yes

Yes

Yes

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 31

DM-3090

23

TROUBLE SHOOTING• Disc motor fails to run

NoCheck soldering joint and parts of pins 24 and 25 of IC1201, andperipheral circuit.

Does waveform appear on the pins 24 and 25 of IC1201 in theTEST mode focus gain coarse adjustment step?

Yes

NoDoes waveform appear on the pins 34 and 35 of IC1601, pins1 and 2 of CNP1603?

Check soldering joint of PWB of completed IC1601 and CNP1601disc motor.

Yes

Replace the completed disc motor.

• Tracking servo failure

NoDoes waveform appear on the pins 8 and 9 of IC1601, and pins1 and 3 of CNS1101 in the TEST mode focus gain adjustmentstep?

Yes

Replace the optical pickup.

Check the soldering joint of pins 20 and 21 of IC1201, IC1601,IC1601, CNS1101.

• Slide servo failure

YesCheck the waveform on the pins 22 and 23 of IC1201, check theperipheral parts and soldering joint.

Does the pickup move to external and internal periphery whenthe or button is pressed in the TEST mode?

No

NoIs there any change on the pins 22 and 23 of IC1201 when the or button is pressed?

Check the waveform on the pins 22 and 23 of IC1201, check theperipheral parts and soldering joint.

Yes

Is there any change on the pins 28 and 29 of IC1601, and thepins 1 and 2 of CNP1602 when the or button ispressed?

No

Yes

Does voltage on the positive and negative terminals of slidemotor change when the or button is pressed?

Check the soldering joint of IC1601 and CNP1602.

NoCheck the soldering joint connected to the slide motor to seewhether there is wire breakage.

Yes

Replace the slide motor.

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 34

DM-3090

24

ADJUSTMENT

1. Preparation for adjustmentTest disc

MD SECTION

Type Test disc

1 High reflection disc TGYS1 (SONY)

2 Low reflection disc Recording minidisc

3 Head Adjusting transparent

2. Test modeTest mode setting method1. Holding

After 3sec, take your hand off the RESET button first.down the ENTER button and (PLAY/PAUSE) button, press the RESET button.

(State A is changed to state B .)2. Insert the playback disc 1 (high reflection disc) or recording disc 2 (low reflection disc).

(State C is set.)(During disc loading : display LOADING)Thus, the test mode state is set. A tsm e : TEST MODE represents version of MD microcomputer.

TEST STOP state (When the (STOP) button is ressed in the C state, the indication A is restored. To restore C again, press the ENTER button.)

B EJECTTEST

C AUTOTEST

Entering the specific modeWhenever the button ENTER is pressed, the mode is changed.

AUTO pre-adjustment AUTO adjustment RESULT SUB RESULT

EEPROM setting MANUAL adjustment MANUAL pre-adjustment

• Canceling the test modeWhen the POWER button is pressed, the test mode is canceled, and the POWER OFF state is set.

• Test Mode

1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)• The adjustment value is output with the aid of system controller interface.

2. AUTO adjustment mode • Automatic adjustment is performed.• The adjustment value is output with the aid of system controller interface.• Continuous playback is performed. (Error rate indication, jump test)

3. RESULT sub-mode • The measurement value, set value and calculated value are indicated.• The set value is changed manually (in servo OFF state).

4. RESULT mode (final adjustment) • The set value (after calculation) is indicated.• The set value is changed manually (in servo OFF state).

5. MANUAL pre-adjustment mode • RF side manual adjustment is performed.• Focus and tracking signal ATT manual adjustment is performed.• Focus and tracking signal offset setting is performed.

6. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.

7. EEPROM setting mode • This mode does not use on the occasion of service.

8. TEST-PLAY mode • Continuous playback from the specified address is performed.• C1 error rate measurement, ADIP error rate measurement.

9. TEST-REC mode • Continuous recording from the specified address is performed.• Change of record laser output (servo gain is also changed according to laser output)

10. EJECT mode • TEMP setting (of EEPROM setting)• CONTROL setting (of EEPROM setting)• Setting of laser power (record/playback power)

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 35

DM-3090

25

ADJUSTMENT

1. AUTO pre-adjustment mode (Low reflection disc only)

Step No. Setting Method Remarks Display

Step 1 Testmode STOP state [ t s m e ]

Step 2 Press once the ENTER button. AUTO pre-adjustment menu [ A U T O ]

Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]pre-adjustment is started.• During automatic adjustment changes as follows.HAo→RFg→SAg→SBg→PTG→PCH→GTG→GCH→RCG→SEG→RFG→SAG→HAO→HEO→TCO→LAO

End of adjustment If adjustment is OK, Step 4.If adjustment is NG, Step 5.

Step 4 Grating adjustment, [ _ C O M P L E T E _ ]adjustment value outputPress once the MD STOP button. STEP 2

Step 5 Adjustment value output [ AUTO ]Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu

• : Adjustment name, : Address

2. AUTO adjustment mode



Step 2 Press the ENTER button two times. AUTO adjustment menu [ A U T O _ A J S T _ ]

Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]adjustment is started.• In case of high reflection disc changes as follows.PEG→HAG•In case of low reflection disc changes as follows.PEG→LAG→GCG→GEG→LAG

End of adjustment If adjustment is OK, Step 4.If adjustment is NG, Step 7.

Step 4 Adjustment value output [ _ C O M P L E T E _ ]Press the MD PLAY button. STEP 5Press the MD STOP button. STEP 2

Step 5 Continuous playback (pit section) [ s c ]Continuous playback (groove section) [ a c ]

Step 6 Press the DISPLAY button. Continuous playback (groove section) [ a a ]Press the MD STOP button. STEP 2 AUTO adjustment menu

Step 7 Adjustment value output [ C a n ' t _ A D J . ]Press the MD STOP button. STEP 2 AUTO adjustment menu

• : Adjustment name, : Measurement value, : Address

DM-3090(K) COVER 97.11.29 0:20 AM y [ W 36

DM-3090

26

ADJUSTMENT


Step 2 Press the ENTER button three times. RESULT sub-menu [ _ R S T _ Y O B I _ ]

Step 3 Press once the MD PLAY button. Indication of measurement value [ R F G : _ _ _ ]

Step 4 Press once the ENTER button. Indication of measurement value [ R C G : _ _ _ ]

Step 5 Press once the ENTER button. Indication of measurement value [ R T G : _ _ _ _ _ ]

Step 6 Press once the ENTER button. Indication of measurement value [ G T G : _ _ _ _ _ ]

Step 7 Press once the ENTER button. Indication of measurement value [ P C H : _ _ _ _ ]

Step 8 Press once the ENTER button. Indication of measurement value [ G C H : _ _ _ _ ]

Step 9 Press once the ENTER button. Indication of measurement value [ S A G : _ _ _ ]

Step 10 Press once the ENTER button. Indication of measurement value [ S B G : _ _ _ ]

Step 11 Press once the ENTER button. Indication of measurement value [ S E G : _ _ _ ]

Step 12 Press once the ENTER button. Indication of measurement value [ S F G : _ _ _ ]

Step 13 Press once the ENTER button. Indication of measurement value [ H A O : _ _ _]

Step 14 Press once the ENTER button. Indication of measurement value [ H B O : _ _ _]

Step 15 Press once the ENTER button. Indication of measurement value [ H E O : _ _ _]

Step 16 Press once the ENTER button. Indication of measurement value [ H F O : _ _ _]

Step 17 Press once the ENTER button. Indication of measurement value [ L A O : _ _ _]

Step 18 Press once the ENTER button. Indication of measurement value [ L B O : _ _ _]

Step 19 Press once the ENTER button. Indication of measurement value [ L E O : _ _ _]

Step 20 Press once the ENTER button. Indication of measurement value [ L F O : _ _ _]

Step 21 Press once the ENTER button. Indication of measurement value [ T C O : _ _ _ _]

Step 22 Press once the ENTER button. Indication of adjustment error sequence No. [ Y O B : _ _ _ _]

Step 23 Press once the ENTER button. Indication of adjustment status [ D I F : _ _ _ _]

Step 24 Press once the ENTER button. Indication of pre-adjustment not completed (00)/completed (4B) [ A D J : _ _ _ _]

Step 25 Press once the MD STOP button. RESULT sub-menu state [ _ R S T _ Y O B I _ ]

3. RESULT sub-mode


• : Measurement value, : Adjustment value, : Other various informations• ressing the REC button causes reversing.• When the jog key is turned upward while the setting is displayed, the setting increases, and a new setting is stored in RAM.• When the jog key is turned downward while the setting is displayed, the setting increases, and a new setting is stored in RAM.


Step 2 Press the ENTER button four times. RESULT menu [ _ R S T U L T _ _ _ ]

Step 3 Press once the MD PLAY button. Indication of set value [ H A G : _ _ _ ]

Step 4 Press once the ENTER button. Indication of set value [ H B G : _ _ _ ]

Step 5 Press once the ENTER button. Indication of set value [ L A G : _ _ _ ]

Step 6 Press once the ENTER button. Indication of set value [ L B G : _ _ _ ]

Step 7 Press once the ENTER button. Indication of set value [ P E G : _ _ _ ]

Step 8 Press once the ENTER button. Indication of set value [ P F G : _ _ _ ]

Step 9 Press once the ENTER button. Indication of set value [ G E G : _ _ _ ]

Step 10 Press once the ENTER button. Indication of set value [ G F G : _ _ _ ]

Step 11 Press once the ENTER button. Indication of set value [ G C G : _ _ _ _ ]

Step 12 Press once the MD STOP button. RESULT menu state [ _ R E S U L T _ _ _ ]

4. RESULT mode (final adjustment)


• : Measurement value• ressing the REC button causes reversing.• When the jog key is turned upward while the setting is displayed, the setting increases, and a new setting is stored in RAM.• When the jog key is turned downward while the setting is displayed, the setting increases, and a new setting is stored in RAM.

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 33

DM-3090

27

ADJUSTMENT


Step 2 Press the ENTER button five times. MANUAL auxiliary adjustment mode [ _ M N U _ Y O B I _ ]

Step 3 Press once the MD PLAY button. Initial setting → Temperature measuring mode [ T M P : _ _ _ _ ]

Step 4 Press once the ENTER button. Offset "0" setting → A signal offset tentative measurement [ H A o : _ _ _ ]

Step 5 Press once the ENTER button. B signal offset tentative measurement [ H B o : _ _ _ ]

Step 6 Press once the ENTER button. E signal offset tentative measurement [ H E o : _ _ _ ]

Step 7 Press once the ENTER button. F signal offset tentative measurement [ H F o : _ _ _ ]

Step 8 Press once the ENTER button. Offset tentative measurement → Laser ON [ L O N : _ _ _ _ _ _ ]

Step 9 Press once the ENTER button. Innermost periphery move → RF side FG rough adjustment [ R F g : _ _ ]

Step 10 Press once the ENTER button. Focus ATT (A signal) tentative setting [ S A g : ]

Step 11 Press once the ENTER button. Focus ATT (B signal) tentative setting [ S B g : ]

Step 12 Press once the ENTER button. RF side pit section TG adjustment [ P T G : _ _ ]

Step 13 Press once the ENTER button. Pit section COUT level setting [ P C H : _ ]

Step 14 Press once the ENTER button. Outer periphery move → RF side groove TG adjustment [ G T G : _ _ ]

Step 15 Press once the ENTER button. Groove section COUT level setting [ G C H : _ ]

Step 16 Press once the ENTER button. RF side TCRS adjustment [ R C G : _ _ ]

Step 17 Press once the ENTER button. Tracking ATT (A signal) setting [ S E G : ]

Step 18 Press once the ENTER button. Tracking ATT (B signal) setting [ S F G : ]

Step 19 Press once the ENTER button. Indication of tracking EFMIO measurement [ g M I : _ _ _ ]

Step 20 Press once the ENTER button. RF side pit section FG adjustment [R F G : _ _ ]

Step 21 Press once the ENTER button. Focus ATT (A signal) setting [ S A G : ]

Step 22 Press once the ENTER button. Focus ATT (B signal) setting [ S B G : ]

Step 23 Press once the ENTER button. Offset "0" setting → A signal offset measurement [ H A O : _ _ _ ]

Step 24 Press once the ENTER button. B signal offset measurement [ H B O : _ _ _ ]

Step 25 Press once the ENTER button. E signal offset measurement [ H E O : _ _ _ ]

Step 26 Press once the ENTER button. F signal offset measurement [ H F O : _ _ _ ]

Step 27 Press once the ENTER button. TCRS signal offset measurement [ T C O : _ _ _ ]

Step 28 Press once the ENTER button. A signal offset measurement [ L A O : _ _ _ ]

Step 29 Press once the ENTER button. B signal offset measurement [ L B O : _ _ _ ]

Step 30 Press once the ENTER button. E signal offset measurement [ L E O : _ _ _ ]

Step 31 Press once the ENTER button. F signal offset measurement [ L F O : _ _ _ ]

5. MANUAL auxiliary adjustment mode (only low reflection disc)


• : Measurement value, : Set value, : Account value• If the jog key upward/downward is pressed during setting indication, the setting increases/decreases, and the new setting is stored in RAM.• If the REC button is pressed, the setting returns step by step excepting the following case. A signal offset (HAO) → Offset tentative setting → RF side FG adjustment (RFG) RF side TCRS adjustment (RCG) → RF side groove TG adjustment (GTG) RF side groove TG adjustment (GTG) → Innermost periphery move → RF side pit section adjustment (PTG) RF side pit TG adjustment (PTG) → RF side FG rough adjustment (RFg) → Laser lighting (LON) Laser lighting (LON) → Offset "0" setting → A signal offset tentative measurement (HAo) If the measurement value is within the OK range, " " appears on the 8th character.


Step 2 Press the ENTER button six times. MANUAL adjustment menu [ _ M N U _ A J S T _ ]


Step 4 Press once the ENTER button. Laser ON [ L O N : _ _ _ _ _ _ ]

Step 5 Press once the ENTER button. Innermost periphery move → Tracking ATT (E signal) setting [ P E G : ]

Step 6 Press once the ENTER button. Tracking ATT (F signal) setting [ P F G : ]

Step 7 Press once the ENTER button. Indication of tracking EFMIO measurement [ P M I : _ _ _ ]

Step 8 Press once the ENTER button. Focus ATT (A signal) setting [ H A G : ]

Step 9 Press once the ENTER button. Focus ATT (B signal) setting [ H B G : ]

6. MANUAL adjustment mode High reflection disc


• If the MD STOP button is pressed while the MANUAL adjustment menu is displayed, the state is changed to the TEST mode STOPstate.

• If the REC button is pressed, the setting returns step.

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 32

DM-3090ADJUSTMENT

8. TEST-PLAY mode


Step 2 Press the TIMER/DELETE

TIMER/DELETE

TIMER/DELETE

button. TEST-PLAY menu [ T E S T _ P L A Y _ ]

Step 3 Press once the DISPLAY/CHARAC button.

ADRES setting (Target address initial value is indicated) [ A D R E S _ 0 0 5 0 ]

Press once the MD PLAY button.During search the search output pin 11 is set to "H", and it isreturned to "L" when continuous playback is started.

Step 4 Continuous playback (pit section) (Address + C1 error indication) [s c ]Continuous playback (groove section) (Address + C1 error indication) [a c ]

Step 5 Press once the DISPLAY (Address + ADIP error indication) [a a ]button.

Step 6 Press once the MD STOP button. TEST-PLAY menu [ T E S T _ P L A Y _ ]


• If the MD STOP button is pressed while the TEST-PLAY menu is displayed, TEST mode STOP state is set.• If the MD PLAY button is pressed while the TEST-PLAY menu is displayed, continuous playback is started from the current pickup position.• Whenever the button is pressed in the address setting mode, the address changes as follows.

0 0 5 0 → 0 3 0 → 0 7 0 0 → 0 8 A 0 → 0 0 5 0 → …………• Whenever the button is pressed in the address setting mode, the digit which is changed with - / + changesas follows.

0 0 5 0 → 0 0 5 0 → 0 0 5 0 → 0 0 5 0 → …………• The digit of address which has been specified with - / + and DISPLAY/CHARACTER button in the address setting mode is set to +01H/-01H.

* If the - / + button is held down, the setting changes continuously with 100 ms cycle.• If the TRACK EDIT button is pressed in the continuous playback mode, the number of jump lines changes as follows.

1 line → 10 line → 400 line → 1 line → ………… * After the number of jump lines is indicated for one second, the address indication is restored. [ T R _ J U M P ]• If the - / + button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD/REV

direction. * If the - / + button is held down, the setting changes with 100 ms cycle.• Whenever the CD STOP button is pressed in the continuous playback mode, the indication changes as follows. * Pit section Continuous playback (SUBQ address indication + C1 error indication) remains. * Groove section Continuous playback (ADIP address indication + C1 error indication) remains.

↓ Continuous playback (ADIP address indication + ADIP error indication) remains.

↓ Continuous playback (ADIP address indication + C1 error indication) remains.

↓

• : Adress, : Error late, : Jump lines

……


Step 2 Press the ENTER button six times. MANUAL adjustment menu [ _ M N U _ A J S T _ ]


Step 4 Press once the ENTER button. Laser ON [ L O N : _ _ _ _ _ _ ]

Step 5 Press once the ENTER button. Innermost periphery move → Tracking ATT (E signal) setting [ P E G : ]


Step 7 Press once the ENTER button. Indication of tracking EFMIO measurement (pit section) [ P M I : _ _ _ ]

Step 8 Press once the ENTER button. Focus ATT (A signal) setting [ L A g : ]

Step 9 Press once the ENTER button. Focus ATT (B signal) setting [ L B g : ]

Step 10 Press once the ENTER button. Outside periphery move → Track closs setting [ G C G : ]

Step 11 Press once the ENTER button. Tracking ATT (E signal) setting [ G E G : ]


Step 13 Press once the ENTER button. Indication of tracking EFMIO measurement (groove section) [ G M I : _ _ _ ]

Step 14 Press once the ENTER button. Focus ATT (A signal) setting [ L A G : ]

Step 15 Press once the ENTER button. Focus ATT (B signal) setting [ L B G : ]

7. High reflection discStep No. Setting Method Remarks Display

• If the MD STOP button is pressed while the MANUAL adjustment menu is displayed, the state is changed to the TEST mode STOPstate.

• If the REC button is pressed, the setting returns step by step excepting the following case. Track closs ATT setting (GTG) → Innermost periphery move → Focus ATT (B signal) setting (LBg)

28

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 29

DM-3090

29

ADJUSTMENT

TIMER/DELETE

TIMER/DELETE

9. TEST-REC mode


Step 2 Press the button. TEST-REC menu [ T E S T _ R E C _ _ ]

Step 3 Press once the DISPLAY/ ADRES setting (indication of address initial value) [ a 0 0 5 0 _ p w ]CHARAC button.

Step 4 Press once the MD PLAY button. During search the search output pin 11 is set to "H", and it is(returned on "L" when continuous playback is started.Address +C1 error indication) Continuous recording [ a p w ]

Step 5 Press once the MD STOP button. TEST-REC menu [ T E S T _ R E C _ _ ]


• If the MD STOP button is pressed while the TEST-PLAY menu is displayed, TEST mode STOP state is set.• If the MD PLAY button is pressed while the TEST-REC menu is displayed, continuous record is started from the current pickup position.• Whenever the button is pressed in the address setting mode, the address changes as follows.

0 0 5 0 → 0 3 C 0 → 0 7 0 0 → 0 8 A 0 → 0 0 5 0 → …………• Whenever the DISPLAY/CHARACTER button is pressed in the address setting mode, the digit which is changed with - / + changes

as follows.0 0 5 0 → 0 0 5 0 → 0 0 5 0 → 0 0 5 0 → …………

• The digit of address which has been specified with - / + and DISPLAY/CHARACTER button in the address setting mode is set to +01H/-01H.

* If the - / + button is held down, the setting changes continuously with 100 ms cycle.• If the JOG button is pressed in TEST-REC mode and continuous record mode, the laser record power changes. (Servo gain changes also according to the record power.)• : Adress, : Laser power cord

10. EJECT mode

Step 1 Testmode EJECT Eject of MD discstate [ _ _ E J E C T _ _ _ ]

Step 2 Press oncethe TIME DISPLAY Max. power output state [ x p w _ _ _ _ _ _ _ ]button.

Step 3 Press once the TIME DISPLAY Record power output state [ r p w _ _ _ _ _ _ _ ]button.

Step 4 Press once the DISPLAY Playback power output state [ p p w _ _ _ _ _ _ _ ]CHARACTER button.

Step 5 Press the STOP button. EJECTMENU

Step 6 Press the NAME/TOC EDIT button. CONTROL setting of EEPROM setting(Refer to CONTROL setting of EEPROM)


DM-3090(K) COVER 97.11.29 0:19 AM y [ W 28

Figure 23-1 Optical Pickup Grating DeviationMeasuring Method

Mechanism Adjustment1. Optical pickup grating inspecting method

After the automatic adjustment is performed in the AUTOmode (test mode) with the aid of high refection MD disc("COMPLATE" is displayed), the Lissajous's waveform (x-y) isadjusted.1. Slightly loosen the 3 screws of spindle moto, and maken an

adjustment, observing the Lissajous's waveform.2. After adjustment tighten the screw in arder of 1 , 2 , 3 .

OSILLOSCOPE

GND CH1 CH2

X Y

42 pin of IC 1101GND (TP1131)

26 pin of IC 1101EOUT (TP1133)

25 pin of IC 1101FOUT (TP1132)

100K

470p

470p

a

b

LISSAJOUS'S WAVEFORMLess thana:b = 3:1

100K

Figure 23-2

1

2

3

1

2

3

adjustinghole

Spindle motor

Check the Lissajou's waveform, shifting the mounting position witha screwdriver (to be fitted into the disc motor adjusting hole).

Spindle Motor

Adjusting hole

2. Jitter adjustment and checking method

Figure 23-3 Jitter connection diagram

jitter Meter

1pin of IC 1201 (TP1274)EFMMON

88 pin of IC 1201 (TP1275)GND

After performing automatic adjustment in AUTO mode ofTEST mode using the low reflection MD disc, check this jitterin pit continuous playback and groove continuous playbackmode.

Figure 23-4

5P extension flat cable2P extension connector

CNP1601(Bottom side)

CNP1602

CNP1252

CNP1603

CNP1604(Bottom side)CNP1101

MD Main PWB

6P-2P extension connector

28Pextension flat cableExtension PWB for serviceFit the extension PWB for service to the mechanism

From OpticalPickup Unit

From Magnetic Head

From motor

From mecha-nism switch PWB

DM-3090

30

ADJUSTMENT

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 25

DM-3090

31

PARTS DESCRIPTIONS

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 24

CN1902Q1820 Q

1251

L125

1

D12

51

CN1252

C1252

R1251

C1251

Q12

52D

1252

CN

1602

C1700

R1702

R1714

C1702

R17

13

R17

01C

1701

C17

11

IC1701

L1702

L170

1

C1717

C1720

R1715

Q1701

R1717

R17

11

R17

10

R17

12

R1807

C1716

C17

09

C18

10

R1806

Q1804

R18

11

R18

10

Q18

06

C1704

C1460R17

35

R1734 R17

07 R17

08

R17

33

R17

31

R19

94

R19

95

CJ1

72

C17

29

C17

24

C17

22

L195

0

LR19

0

R1461

R1463

C1425

R1459

Q18

22

R1939R1827

R14

66

R14

64

R14

62

R14

60

R14

58

R14

54

R14

52

R14

56

C19

04

Q14

51

Q18

21

Q14

04

Q14

03

C19

27

J1921

IC1251

R1252

Q1254Q1253

R1253

C12

55

C12

54 R1223

R19

67

R19

69

R1968R1964IC1916

IC1202

C12

06IC

1906

IC1907

C19

64

C19

58R

1965

C19

51

R19

71R

1409

IC19

90

C19

54

R1963 R1962

C1955

C19

90

D1990

C19

53

C1992

R19

61

C1952

CN1603

L1601R1668

R16

69

R1617

Q1601

R1609R1612

R1611

C16

04

R16

10

R16

14

R16

13

C1610

XL1

201

C12

07

RC120

C1203

R12

02

C1205

R12

01

C1204

R1261

R1262

R1263

R1266

R12

55

R12

21

R12

69

C1210L1203 R14

71

C14

24R

1107

C11

01

R11

06

C11

45R

1166

C12

11

C1202

R1100

L1102

L1201

C12

09

R1210

R12

11

C1208

CN

1101

IC1201

MD MAIN PWB – A (FRONT)

124

28 15

14

105

2025

1

17

8 14

12

1 7

814

1 8

916

1

7 8

14

1

3 4

5

1 5 610

11151620

1

28

1

5

10

15

20

25

26

30354045

50

51

55

60

65

70

75

76

80 85 90 95

100

1

2

1

2

32

A B DC E

2

1

3

5

7

4

6

Refer to the schematic diagram for the value of resistors and capacitors.

PC BOARD(Component side view)

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 21

TP1511

TP1523

TP1524

JC170

TP1521

TP1801

JC196

TP1517

TP1522 TP1520 TP1519 TP1518 TP1516 TP1504

TP1512

JC17

1

TP1503

R1805TP1501

C18

03

JC121

TP1502

R1947TP1908

TP1907

Q1807

C1802

TP1515

C1801

R1801

R18

04

Q1801

IC18

01

TP1507TP1509

Q1803 Q18

02

TP1505

R1802R1820

C18

05

R18

21 TP1802C1806R1809

R1808

C1807

TP1260

C1913TP1901

R19

27

TP1906

CN1904

TP1904

TP1251

TP1909

TP1910

IC1401

R1407

C1403

J1405

C19

91

Q1401

Q1402

C1407

R1408C1412

R1413

R14

15

R1412

C1956

C14

01 R14

06

C14

23

TP1119

R14

20

C1957

TP1412

R14

04

R1472

C1402

R19

73

R1974TP1911TP1405TP1456

R14

22

TP1455

TP1404

R1430

R1429

R14

01

R14

24

R1423TP1803TP1713

C1715 C1713

TP1701

TP1710

C1710

TP1712

C1706C1707

C1743

TP1414

TP1702

IC1802R1716

C1712C1714

TP1990

TP1415

R1473

C1703R

1418

R1478

R1666 R1667 TP1213 TP1273

TP1279TP1214 TP1215

C14

06

R1474

R14

75

R1476IC1402

R1416 R1414TP1212

C14

05

TP1606

TP1607

C14

21

R14

28

C14

22

TP1280

R14

25

TP1454

R1427TP1601

R14

26

TP1604

TP1602

CN

1601

TP1605TP1616

TP1609

C1657 R1664

TP1608

C1602

R1620

C1656

R16

62

TP1610

TP1611

CN

1604

C16

05

R1660

C1655

C16

09

C16

54

R16

58

TP1103

TP1104

TP1129

TP1218

C1631

IC16

01 TP1216

TP1116

TP1141

TP1150

TP1122

TP1108TP1112

L110

1

C11

21R1665

R1663

R1661

R1659

TP1107

TP1105

TP1109

R1653

R16

51

TP1220

TP1275

R12

81R1254

C16

01C

1653

R16

56

C16

52

R16

54 R1657

R1655

TP1106

C1661

TP1612

TP1111

TP1204

C16

50

R16

50

R16

52

C16

51

R11

50

TP1127

TP1132C1112

TP1133

TP1134C1114

R1151

R1152

TP1130C11

13

TP1135

TP1136R1154

R11

53

R1102

TP1139

TP1123

C11

16

C1115TP1138

TP1140

TP1120

R11

55

C1107

C11

06

TP1142

TP1113

C1110

C1109

IC1101

TP1118

TP1115

TP1114C1105TP1126

C11

11

C1103

C1104

R1105

C11

02

TP1416

TP1510

TP1508

TP1506

TP1278 TP1457

TP1252

TP1905

TP1255TP1902

TP1131

TP1458

TP1137

TP1210

TP1128

TP1274

TP1413

TP1217

TP1102

TP1101

TP1603

TP1711

MD MAIN PWB – A (REAR)

1

3 4

5

1 4

1001

5

10

15

20

25

30

31

354045

50

51

55

60

65

70

75

80

81

85 90 95

1 4

8 5

123

4

5

42

40

35

30

25

22 21

20

15

10

5

1

1

2

1

5

10

12

13

1520

2425

30

35

3637

40 45

48

F H J L NG I K M O

2

1

3

5

7

4

6

+

-

+

-

M701SLED MOTOR

SPINDLE MOTOR

PICK UP IN

M702 CN

P3

SW

702

123456

CD MOTOR PWB-F

BR BROWN

COLOR TABLE

RD(R) RED

OR

YL

GR

BL

VL

GY

WH(W)

BK

PK

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GREY

WHITE

BLACK

PINK

7 6 5 4 3 2 1

78 6 5 4 3 2 1

MD MECHANISM SWITCH PWB-G

CNS3CD SUB PWB

CN1601CD SUB PWB

CN1601MD MAIN PWB

CN1252

CN1101

MD MAIN PWB

CN1604MD MAIN PWB

CN1603MD MAIN PWB

CN1602MD MAIN PWB

MD MAIN PWB

CNS2CNS1CD SUB PWB CD SUB PWB

12345

SW701OPEN/CLOSE

M703LOADING MOTOR

MD SPINDLE MOTORM901

BRRDORYLGR

CNS10

12

RDBK

12

RDBK

MD LOADING MOTORM903

MD SLED MOTORM902

12

RDBK

R1901

R1902

R1903

R1904

12

VLVL

CN

1901

SW1955RECORD

SW1954PLAY

SW1956LOADINGSW1952

DIRECT

SW1953READ IN

RECORDHEAD

FLAT CABLE

PICK UP

PICK UP



33 34

PCB/SD 2P 97.11.29 1:58 AM y [ W 1

P Q S U W YR T V X

2

1

3

5

7

4

6



35 36

PCB/SD 2P 97.11.29 2:05 AM y [ W 2

A C E G IB D F H J

2

1

3

5

7

4

6

MECHA.

IC1990

IC1101

MECHA. (SW PWB)

(MOTOR PWB)

PICKUP

IC1202

IC1201

IC1251

INVERTER

EFM OUT

BIAS

2SA1162G:Q1820

74VHC08F

74AC04FS

:IC1916

:IC1990

D1990

HEAD

CN1604

CN1603

CN1101

: RN2404Q1401,1403

:Q1451,1821,1822REC HEAD

DRIVER

CW1903

Q1251

Q1252

CN1252

Q1253

Q1254

RF AMP

: RNC1404Q1402,1404

LM

DM

FM

LOADINGMOTOR

DISCMOTOR

FEEDMOTOR

CN1602

D1251,1252D1990

RNC1407

2SA1314C

2SK1473

2SK2909

RN1406:

:

:

:Q1601,1801,1807

Q1253,1254

Q1251,1252

Q1802,1803

TC9246F

TC7ST08F

XC82EP32

M68758FP

S29294A

IX0227AW

TC74ACT02F

IX2474

LR37648

IR3R55

:IC1907:

:

:

:

:

::

:

:

IC1202

IC1402

IC1906

IC1801

IC1601

IC1401

IC1251

IC1201

IC1101

4M BITD-RAM

RECDIGITAL

DIGITALIN

SERVODSP

EFM/ACIRC/ATRACENCODER/DECODER

D12

52

D12

51

: 1SS372: SB80209CP DIGITAL

OUT

1.6V

0V

1.5V

4.3V

0.8V

1.3V

1.2V

1.2V

2.3V

2.5V

1.3V

1.7V

2.5V

1.2V

1.2V

3.0V

2.0V

2.2V

0.8V

0.8V

3.2V

1.9V

1.4V

1.7V

1.6V

1.7V

1.6V

2.0V

1.3V

1.6V

1.3V

1.9V

1.6V

1.3V

1.9V

1.6V

1.6V

3.2V

3.2V

1.6V

1.6V

3.2V

3.2V

3.2V

3.2V

1.6V

0V

3.2V

1.0V

0.9V

1.4V

1.6V

1.6V

3.2V

4.9V

3.2V

1.6V

0.8V

1.6V

1.6V

1.6V

0.0V

1.6V

1.6V

1.6V

1.6V

1.9V

1.9V

1.3V

1.3V

1.6V

+B LINE

1.6V

1.6V

3.2V

0V0V3.2V

1.4V

1.6V

1.6V

1.6V

1.6V

1.6V

0.7V

1.6V

1.6V

0.8V

0.8V

0.7V

0.8V

+B

SIGNAL LINE

GND LINE

DIGITAL LINE

+B

+B

+B

+B

+B

+B

+B

+B

+B +B

+B +B

+B +B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B +B +B

+B +B

+B +B

+B +B +B

+B

+B +B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B +B

+B

+B

+B

+B

+B

39

0.47uHL1102

1

9 81012 1113

GN

D765432

141

VC

C

74

C11

180.

033

3300

P

C11

17

C11110

MINF

LOADING

GND

HINF

LEAD IN

+B+B

C11

21

10uH

L110

1

0.47

uHL1

201

1

C1990

0.1

C19

92

8

9

10

11

12

13

VCC

GND7

5

6

3

4

2

141

R1261 10K

R1262 10K

R1263 10K

R126610K

RA

A9

39 40 4137

37 39 40 41

R1269

0

1C1203

0

C12

07

1

47

R1281

70

720

RC120

8022

0

R12

11

0.047

C1208

62K25

R166362K

19R1651100K

R1653

9

7

8

11

7

270P

C1116

5

270P

C1115

8

270P

C1114

6

270P

C1113

270P

C11129

22K

R1150

22K

R1151

22K

R1152

22K

R1153

R1154

22K

R1102560

56K

R11

55

1

C11

01

R11071

72

310K

R1106

10

9

1212

11

9

10

11

12

27

R1100

1

C1102

1

C1103

0.027

C1104

390K

R1105

343332

29282726

29282726

1

C12

06

3635343332

3635

71

220

R1221

1

C12

10

0.47

C11

08

4700

P

C11

070.47

C11

10

C11

09

1

AD

AG

C

AD

AG

I

RF

2-1

EF

MO

EF

MI

AV

CC

AG

ND

EF

MA

GC

EF

MA

GI

AT

TR

GO

UT

PO

UT

HPFLPF

AGCADIP

AGCEFM

LOGIC

ADIPI

ADIPO

NC

ADLPFO

22KO

22KI

WBO

TCCO

AOUT

BOUT

EOUT

DV

CC

DT

EM

P

LAT

CH

CLO

CK

DA

TA

SG

AIN

AG

ND

DG

ND

AV

CC

ST

BY

DIS

C

BIA

S

FIN

EIN

BIN

AIN

TCGI

RFADD

REFO

REFI

RF3

RF4

RF1

RF2

DIFFR a

nd S

W

DIFF

4748 4546 4344 404142 3839 37

36

35

34

33

32

31

30

29

28

27

26

25

13 14 15 16 1817 20 2119 22 23 24

1

2

3

4

5

6

7

8

9

10

11

FOUT

10

4.7

4

3

4

3

8

7

6

5

1

GND

VCC

2

3

4

27

28+2.8V

28

27

SW

I/V

I/V

I/V

I/V

APCIN

DGND

LVVIN

1

C16

09

1

2

1

2

30TRY-

2

1TRY+

1SP+

2SP-

2

1

1

2

C12

52

120P

1

10

R1251

2

47uHL1251

0.027

C1251

C12

54

C1255

R12

53

R12

52

31333292

1

C1105

4.7u

HL1

203

CN1901

1 29

2

34

28

31

35

LDON

B

LDVCC

APCOUT

DGND

DGND

LVVOUT

LDVAR

A

F

COM

E

RF1

RF3

RF4

VCC

AGND

MP/R

RF2

F-

T+

F+

T-

18

CW1901

WRITE

SW1951

PRO

DISC ID

SW1952

1.8KR1902

1

2

3GND

HINF

LEAD IN

470

R19014

5

LOADING

MINF

LEAD IN

SW1953MD157

PLAY

SW1954MO195

REC

SW1955MO159

LOADING

SW1956MO156

820

820

R19

03

R1904

9

13

8

12

SLD+

SLD-

T.COIL

F.COIL

26

24

25

22

20

21

18

19

17

15

13

14

11

12

10

16

23

8

6

7

4

5

2

3

1

9

25

5

6

4

2

1

3

15

13

12

11

10

9

8

7

14

16

17

18

19

20

21

22

23

24

26

1201

XL

R1201150

R1255

10 9 8 6 5 3 247 1

11

A3

VC

C

12A

5

A4

A2

13A

6

A1

15

A7

A9

16O

E

A8

A0

RA

S

18

CA

S

I/02

19I/0

4

I/03

WE

1714

I/01

GN

D20

12P

C1205

12P

C1204

1M

R12

02

R1254

220

C1209

1

00

R12

23

680

100

R12

10

1929 4018 155452 5349 50 514847464544

1

C12

11

6

5

11

C12

02

1

TO

TM

ON

76

61

60VPO

59

58

57

CDBCLK

CDLRCK

CDDATA

55

54

53

TEST4

TEST3

TESO1

56

VXI

52

51

EXPORTO

X700KO

EXPORTI

EF

MO

50

25SPDRR

17

FODRF18

19

TRDRF20

21

FODRR

SLDRF

TRDRR

22

SPDRF

SLDRR

24

23

X176KO

77T

EM

ON

PLC

K49

78S

BC

KA

CR

CE

R48

79S

BO

TC

RS

47

80S

BS

Y46

81S

FS

Y

RA

D0

4582

SE

NS

E

RA

D1

4483

CO

UT

RA

WE

X

43

84M

CC

KR

AR

AS

X

42

85

DIN

TX

RA

D3

41

86

FO

K

RA

D2

40

87

24R1665

23

82K22

R1661120K

21R1655120K

20R1657100K

VD

D1

RA

CA

SX

39

88D

GN

D

DG

ND

3889

RS

TX

RA

OE

X37

90S

YD

0R

AA

836

91S

YD

1R

AA

735

92S

YD

2R

AA

634

93S

YD

3R

AA

533

94S

YD

4R

AA

432

95S

YD

5V

DD

231

96S

YD

6R

AA

1030

97S

YD

7R

AA

029

98S

YW

RX

RA

A1

2899

SY

RD

XR

AA

227

FEMMON1

AVCC2

75

DADATA

EFMI3

74

ADDATA

AGND4

73

DFCK

AIN5

72

FEMON

EIN6

71BCLK

TCG7

70LRCK

BIN8

69DGND

FIN9

68VDD3

VBAT10 67

DOUT

WBI11 66

DIN

VDD112

65XO

DGND13

64XITEST0

14

63DGND

TEST115

26R

AA

3S

YR

S10

0

62 16

TEST2VDD1

) (

()

())

(

)(

)(

()

()

() )

(

()

) (

()

)(

)(

)(

( )

( )

) (

()

()

()

()

) (

) (

) (

)(

()

)(

)(

)(

( )

) (

) (

)(

)((

)

)(

)(

)((

)

()

()

())

(

)((

)

()

()

()

)(

)(

()

)

)

(

(

)(

( )

)(

()

()

())

(

)(

)(

)(

)(

( )

( )

) (

) (

) (

) ((

))(

)((

) )(

)((

) )((

)

() )

(

)((

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)((

)

( )

( )

( )

)(

)(

)(

)(

)(

PCB/SD 2P 97.11.29 2:05 AM y [ W 3

K L N P R TM O Q S

IC1801

IC1907

IC1906

IC1402

IC1401

IC1916

Q1601

Q1807

Q1820

3.2V AVR

VC

OC

OM

PA

RA

TO

R

CO

UN

TE

R

I / F

DE

TE

CT

OR

GENERATOR

SELEC-TOR

CLOCK

Q1401

Q1402

AND GATE

EE-PROM

Q1404

Q1403

MD-MECHAu-COM

SELECTOR

DIGITALOUT

3.9V

3.3V

4.4V

3.2V

3.4V

1.6V

1.6V

3.2V

3.2V

3.2V

3.2V

3.2V

1.9V

3.2V

3.2V

2.2V

1.4V

3.2V

1.7V

1.6V

0.9V

0.9V

3.2V

2.3V

3.2V

3.2V

0V

0V

1.6V

1.6V

5.5V

2.8V

3.1V

2.4V

3.3V

0V

5.0V

5.0V

1.5V

2.6V

4.9V

2.6V

3.2V

3.2V

1.0V

3.2V

3.2V

0V

3.2V

3.1V

3.2V

3.2V

3.2V

0V

0.4V

0.4V

3.2V

4.9V

3.2V

0V3.2V

0V0V0V0V

3.2V

3.2V

3.2V

0.2V

0V

3.1V

3.2V

1.6V

3.1V

0V

0V

3.1V

0V

0V

0V

3.2V

0V

5.1V

4.4V

4.4V

5.1V

5.1V

R11

681.

2K

PE

F

VAR

+B

+B

+B

+B+B

+B

+B

+B

+B

+B

+B

+B

+B +B +B

+B

+B

+B

+B +B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B+B+B

+B

+B

+B

+B

+B +B+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B+B

+B +B

+B +B

+B

+B

+B

0

C16011

R16

14

27K

18K

R1613

0.03

3C

1145

5

12

0

J1920

R14

31

820P

R1656

6.8KC1653

20

21

6.8K

30K

R16

10 +

C16

0510

0u10

10

C16

10

R16

17

47K

R1609

1.5K

56K

R16

12

12K

R16

11

56P

C16

04

R1820

11

R1821

27K

R1808

390

R18

09

1

C18

05

+

C18

0722

0u4

10

C18

06

47K

R14

18

72

39

0.04

7

C19

27

+B

+B

+B +B+B

+B

+B

+B

+B

+B

+B

18

10K

820P

C16

50

R16

50

22

820P

C16

51

10K

R16

52

R16

54

C16

52

820P

9

8

12

13

19

3

1

2

4

80

10KR1477

10K

R14

08

100K

220

R1968

1000P

10K

42

43

+

C195647u6.3

0.047

C1955

R19631.5K

C195415P

220K

R19

62R

1961

100

C19

530.

47

C19

52

0.01

VDD

VDDA

VSSA

98

16

15

14

13

12

11

10

1

3

2

4

5

7

6

10

C19

91

5

4

VCC

C19

58

0.04

7 +

C19

5710

0u6.

3

6.8K

R19

64

R1965

C1964

R1969

56

R19

67

47

L3DATA

L3MODE

4M/1

6M

CLO

CK

LAT

CH

DA

TA

C19

13

22

C19

51

0.04

7

VSS

4342

3

92 333231

R14

281K

R14

04

1K 1K

R14

26

680P

C14

03

10K

J140

5

C14

070.

022

1

+B

+B

+B

+B+B +B

+B

+B

+B

+B

+B

+B

+B

+B

+B +B +B

+B +B +B +B

+B

+B

+B

+B

+B

+B

+B1

2

3GND

0J1922

R14

1610

K

R14091K

0.02

2C

1424

R1474 1K

R1475 1K

R1476 1K

C1402

0.047

0.02

2

C14

21

0.02

2

C14

22

CN1601

29

5049484744 45 46

58 60

28

27

22

R1425

2.7K

R14274.7K22

0

1

LEA

D IN

32

HIN

F

GN

D

54

LOA

DIN

G

MIN

F

680P

R14

13

3.3K

12

21

61

59

C14

050.

1

5

C14

12

R14

12

100K

CN1904

R19

74

6.8K

R19

73

R19

27

22P

123

GN

D

GN

D

4

DIG

OU

T

DIG

IN

100K

R14

73

10K

R14

14

4

3

2

1

5

CS

SE

6DATA

DI

VCC7

GND

NCPRTCT8

1K

R14

01

R1407

3.3K

6

0.04

7C

1401

C14

230.

022

R14201K

15

19

18

3.3K

R1406

1K

R1415

47K

R1472 R14

30 1

0K

R14

29 1

0K

R14

22 1

0K

R14

23 1

0K

R14

24 1

0K

C14

06

1

61

59

60

58

54

53

52

51

R14

71

40

37363534

65

66

GND

VCC

EEPD

EEPK

EPCS58

59

60

61

62

63

64

SYSD1

SYSD0

SYSD251

52

53

54

55

56

57EEPRO

SYSD3

18

17

DSENSE

SERCH

ST-ID

19

21

20

FSW

MDRSW

VARI-P SW

23

25

24

22

HDON

LD-

LD+27

26

28

INNER

CIN30

29

P-DOWN

DINT

81A

DM

UT

82E

MP

H

83D

AM

UT

84M

UT

E

85

TE

ST

2

SY

SD

450

86

TE

ST

1

SY

SD

549

87

TE

ST

0

SY

SD

648

88

AV

CK

3

SY

SD

747

89A

VC

K2

SY

WR

46

90

AV

CK

1

SY

RD

45

91

DO

UT

MT

SY

RS

44

92D

TE

MP

S1

43

93M

INF

S2

42

94T

ES

TK

1

41

95T

ES

TK

2

FO

K40

96G

ND

R/P

39

97H

INF

38

98V

RE

F

DS

CK

37

99A

VC

C

KD

AT

A36

100

MD

DA

TA

35D

ST

B343332

1

280

XRST

LDVAR3

79DIGCD

ADJS4

78DIGEX

577

DFS1

LOAD IN6

76DFS0

ERROR7

75DAPON

BYTE8

74ADPON

CNVSS9

73A/B

STID OUT10 72

LDON

SEACH OUT11 71

PCNT1

RESET12 70

PCNT0

13 69

L3CLK

VSS14 68

MCCK15

31

67

16VCC

VCC

GND7

14

13

12

10

9

8

11

1

2

3

5

6

4

()

( )

( )

)(

( )

)

)(

)

)

(

(

)(

)(

( )

(

)(

()

) ( (

)(

)(

)(

)(

)(

)(

))

(

( )

()

()

()

()

()

()

()

()

()

)(

( )

( )

()

( )

()

) (

()

()

( )

( )

( )

()

(

(

)

)

()

()

()

()

()

()

()

()

()

()

PCB/SD 2P 97.11.29 2:05 AM y [ W 4

U W YV X

IC1601

DM-3090 (1/2)

A

B

Q1451

Q1821

Q1822

Q1801

Q1802Q1803

5ch MOTOR DRIVER

CN1902

5.1V

1.6V

2.5V

1.6V

1.6V

1.6V

1.2V

1.2V

1.7V

1.7V

1.6V

1.6V

2.1V

2.9V

2.6V

2.5V

2.6V

1.6V

2.4V

1.6V

2.6V

1.6V

1.6V

3.1V

1.6V

1.2V

3.7V

1.6V

1.6V

1.6V

+B

+B

+B

+B

+B

+B

+B +B

+B

+B

+B

+B

+B

J1950 LR190

74

71

70

12

72

J196

30

JC19

622

P

0

J1720

JC17

122

P

C17

2422

P

R17

086.

8K

68P

C19

17

47

220

R1952 47

R1940 220 R1995 0

R1994R1951 0

R1759 1K

R1758 1K

J1730 0

+

C16

6110

0u10

L160

1

1uH

2.2

C18

01

1.8K

R18

0127

0

R18

02

+

C18

0210

0u10

220K

R18

04

100K

R18

05

2.2

C18

03

270

R1827

24

25

1

5600

P

C16

57

10K

R16

64

23

28

27

22

6.8K

R16

69

15K

R16

600.

015

C16

55

C16

02 1

OUT4

IN4-

IN4+

IN5+

IN5-

OUT5

VM5-

VM5+

VM4-

VM4+

VM3+

VM3-

IN3

Vm2

VBS2

IN3-

OUT3

CH3IN

R1668

6.8K

R1666

22K

22K

R1667

C16

54

0.01

5R

1658

15K

29

28

31

30

35

34

5600

P

C16

56

10K

R16

62

0

R162042

41

40

39

38

37

36NC

35

C1631

1

DSCK

MD-ST

RESET

LOAD SW

BUCKUP

PDOWN1

2

3

4

14

13

12

11

10

9

8

7

6

5

15

16

17

18

19

20

21

22

23

24

R1454

R1452

R1456

47

R1947

1K

R1939

MUTE

DFSO

DFSI

DADATA

BCLK

LRCLK

ADDATA

SYSCLK

DVDD

DVDD

D.GND

D.GND

D.GND

D.GND

DSTB

MODATA

KDATA

SERCH

5

12

R1466

R1464

R1462

R1458

R1460

R1461

10K

R1459

0.047

C1425

6

34

35

36

21

37

R1733 1K

R1953 47

1uH

L1950

220

220

6.8K

6.8K

6.8K

1K

3.3K

1K

R1463

10K

10K

1.25V

-+

GND

VM2+

VM2-

OUT2

VREFO

VREF

IN2-

21

20

SS.GND19

MUTE218

MUTE117

IN2+16

15

REG+

REGB

IN1+

VBS1

Vm1

IN1-

OUT1

VM1-

VM1+

GND

34

GND

GND

33

32

30

31

29

2/2

MAIN-CNW301

2/2

MAIN-CNP471

28

27

26

24

23

22

25

1

2

3

5

6

8

9

7

4

12

11

10

14

13

)(

)(

)(

)(

( )

) (

) (

)(

) (

) (

) (

) (

) (

) (

()

()

) (

) (

(

)(

( )

( )

)(

)(

)(

)(

)

Y22-7510-00

DM-3090

CAUTION: For continued safety, replace safe-ty critical components only with manufacturer'srecommended parts (refer to parts list). indi-cates safety critical components. For contin-ued protection against risk of fire, replace onlywith same type and rating fuse(s). To reducethe risk of electric shock, leakage-current orresistance measurements shall be carried out(exposed parts are acceptably insulated fromthe supply circuit) before the appliance isreturned to the customer.

The DC voltage is an actual reading measuredwith a high impedance type voltmeter. Themeasurement value may vary depending onthe measuring instruments used or on theproduct. Refer to the voltage during RECORD-ABLE MD PLAY unless otherwise specified;The value shown in ( ) is the voltage mea-sured at the moment of STOP. The voltagefollowed by (REC) refers to the value duringMD RECORDING.

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 20

Z AA ACAB AD

2

1

3

5

7

4

6

0V0V3.3V

3.3V

0V0.2V

3.0V

3.0V

5.2V

5.2V

5.2V

0V5.1V

0.0V

0V 0V5.2V

5.1V

5.2V

5.1V

5.2V

3.9V

5.2V

3.9V

2.5V

2.7V

2.7V

5.1V

-7.9V

7.7V

3.3V

1.6V

3.3V

1.0V

1.6V

0.9V

3.0V

1.5V

0V3.3V0V

1.7V

TX302RX302

BA

PLAY OUTREC IN

CONVERTERA/D D/A

REC OUTDIGITAL

1

OPT.DIGITAL

DIGITALOUT

CNP301

2

DIGITALCOAX.

REC IN

INPUT SELDIGITALCOAX/OPT

DIGITALOUT

REC INDIGITAL

J101A

(AUDIO)

Lch 1

Rch 2

LINE REC IN

IC101(2/2)

(1/2)IC101

D30

1

J301

MAIN SECTION

B

A

IC201

IC302

IC301

560

R40

6

220K

C20

3

1K

-CN1902

1/2

MD-UNIT

1/2

MD-UNIT-CN1904

R308 22

+5V

+5V

+5V +5V

+5V

+5V +5V

+7.5V

+7.

5V

+5V

+5V

+5V+5V

+5V

+5V

-7V -7V

+7V +7V

1MR20

3

+

C11

710

0u10

5678910

121716

+7.

5V

+7.

5V

+B

V

+B

V

+BV+

C201100u10

1u50

C20

6+

47u1

0

+

1011131415 121719 182123 22 2024 16

R31

3

47K

R40

1

560

C53

1

R55

468

K

0.1

R55

2 39

K

R55

368

K

14

R414

171615R

402

R40

4

560

R40

7

R40

8

8.2K

R41

34.

7K

TE

ST

2

TE

AT

32120

DA

TA

I

DA

TA

0

WS

BC

K

L3D

AT

A

1918171615

8T

ES

T1

910V

DD

D

111213

VS

SD

SY

SY

CLK

L3M

OD

E

OV

ER

FL

14L3

CLK

13 246 5

VA

DC

N

VIN

R

VR

EF

A

VIN

L

VD

DA

VS

SA

7V

AD

CP

VS

SO

VR

EF

D

27 28

VO

UT

L

VD

DO

25 26

VO

UT

R

AV

SS

AV

DD

23 2422

4.7u

25C

205

+10

0u10

C20

7

R41

2

R40

5 33

04.7K

R41

1 4.

7K

1213

C21

2 3.

3u25

+

R41

7

+47u1

0C

202

+

1KR

418

6 5789

MU

TE

DF

S0

DF

S1

DA

DA

TA

BLC

K

LRC

LK

AD

DA

TA

SY

SC

LK

D 7

.5/5

V

D 7

.5/5

V

D.G

ND

D.G

ND

D,G

ND

D.G

ND

DS

TB

MD

DA

TA

K D

AT

A

SE

RC

H

DS

CK

MD

-ST

10uHL201

+

C20

83.

3u25+

C20

94.

7u25

123123

R31

2

0.02

2

82K

C31

2

D O

UT

GN

D

GN

D

D IN

2 14 3

56K

R30

5

C302

L302

10uH

R30

9 10

K

R30

722

0.022

C3030.022

10uH

L301

C30

50.

022

R3103.3K

0.022

C304

C31

10.

022

C3130.022

C31

0

R20

2 68

0K

R41

0 22

0K

R4158.2K

8.2K

R41622

0KR

409

100P

C47

0

220K

560

220K

R40

3

C3140.022

R11

11.

5K

+

47PC114

100u

10C

118

R11

21.

5K

+

1 47u10C116

+

-2

4R114

C110

220P

31K

1K

C108R104

+

100K

R10

8

C10

6

47K

R10

8

220P

1K Iu50R110

100R115

47PC113

R1131K

C115

+

47u10

220P

C109-

+ 7

8

6

5

100K

220P

47K

+

C107Iu50

C10

5

R10

5

R10

7

R1091K

R1031K

0.22uHL101

C11

9

C10

2

0.02

20.02

2

MM: 2.5mV

GND

VDD

7

6

5

4

3

2

1

8

9

10

11

12

13

14

R116100

R30

322

0K2.

7KR

304

VD

D

GN

D

141312111098

1234567

0.02

2

330R302C301

0.01

R30

1 82

(

)

)))

(((

)((

)

(

))

) ))) ))

( ((( ((

( (

)

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 17

AE AG AI AK AMAF AH AJ AL AN

7.8V

7.6V

7.6V

-6.4V

-6.4V

-6.4V

4.2V4.2V

0.4V

0.3V

3.0V

3.0V

5.1V.5.1V

11.3V

LOADING:6.7VNORMAL:5.3V

LOADING:0VNORMAL:4.7V

LOADING:4.0VNORMAL:0V

6.0V

10.7V

6.5V

-36.5V

-31.6V31.0V

10.7V

8.8V

8.1V

8.1V3.4V

-13.0V

-8.3V

-8.9V

-6.4V

-3.8V

-6.5V

-8.0V

-31.

0V

-30.

8V

-23.

1V

-18.

6V

-26.

5V

-14.

9V

-22.

4V

2.4V

2.0V

5.1V

4.2V

5.1V5.1V

0.2V

5.1V

2.8V

5.1V

REC:5.1VPLAY:0V

5.1V

5.1V

5.1V

0.8V

3.0V

4.2V

0.4V

3.7V

5.1V

1.8V

5.1V

5.1V

CNP473

D50

9

D513

UN970

AVR-31V

PLAY OUT

SW901

SW501

D651

7.5V AVR

LINE

Rch

Lch

Q653

MUTEDRIVE

T551

D504Q503

Q504D505

5V AVR

5V AVR

7V AVR

-7V AVR

Q501

(E/T)TYPE

(J)TYPE

D50

6

D51

2

D50

2

Q505

Q506

D507

D51

0

D508

D551

D552 D553

D554

Q502

D501

CNP472CNP471

D555

T551

AMPPHONES

(2/2)IC651

IC651(1/2)

J101

PHONESMUTE

D503

Q602

Q601

(1/2)IC601

IC601(2/2)

Q452

Q451

CNP902

CNW903

PHONES

CNW901

J981

PHONESLEVEL

LEVELREC

SENSORREMOTE RESET IC

Q902

Q901

SW961

SW957

NAME

(JOG DIAL)MULTI CONTROL

TIMEDISPLAY

DISPLAY/CHARAC

DELETETIMER/

ENTER

SW956

SW959

SW960

SW958

REC

SW951

SW952

SW953

SW954

4c

14G13G

4b

6a5a3a2a1a

7G8G9G10G11G12G

: 2SD2012Y(FIN)

: NJM45600

D651 : SR19

D551-555 : RL104A

: ISS133D509,510,512,513

D508

D507

D506

D505

D504

D503

D502

D501

D301

: MTZJ2700

: MTZJ5R8C

: MTZJ7R58

: MTZ6R8A

: MTZ9R19

: MTZ9R18

: MTZJ3308

: MTZJ6R88

: MTZJ5R18

Q653

Q505

Q504,506

Q503

Q502

Q501

Q451,452,601,602

IC601

IC501

IC302

IC301

: KRC102M

: KRC1024M

: 2SD488-C

: 2SB582-C

: KTA1266GR

: 2SC28788

: NJM45800

: ISB1233SOYX

: 74HC10AP

: 74HCU04

IC201 : uUDA1340

IC101,651

MAIN SECTION

DISPLAY SECTION

IC501

HEADPHONE

IC902

66

72

0.8

R50

31.

8KC

505 +

10u5

0

+5V

+5V1

+100u

10

+C51

810

0u10

C2201000P

C222

0.022+

C52

210

00u6

.3

R509820

+C50

247

00u2

5

+C52

147

00u2

5

+C50

110

0u25

R92

61K

-31V

R94

5

47K

-31V

-31V

R50

4

50/60Hz

50HzAC230V~

C512

100

C52

5

+C66

610

0u10

R96

0

5.6K

R921

R922

G

AB

8.2-BV

+C514

10u16

+

1u50

C2210.022

C66

70.

1

0.02

2

R66

9

2.7K

R670 330

F552 T1.0A 250V

C51

9

F551

HLD551 HLD552

HLD554HLD553

HLD551 HLD552

HLD554HLD553

F551T1.0A 250V

+5V

+5V

+7.5V

+7V

+7V

+7V

+7V

+7V

+7V

+7V

-31V

-31V

-7V-7V

-7V

-7V

-7V

+7V

+7V

100R508

680R507

+

C51147u25

0.02

2C

530

100R510

C513 47u25

+

47K

R61

5

R61

6

47K

R61

01K

1KR

609

131415

681019453734

+BV

+B

V

+7V

+7V +7V

-BV

-BV

-BV

+B

V+

BV

+BV

L202

10uH

1412111 2 3 4 5 6 7 8 9 10 242321 221817 19 20161513

R51

2

470

+C51

710

0u10

+

C50

733

u50

+

C50

422

0u50

R501

R511

+

C5241000u6.3

33K

R514100K

C52

0

R516220K

1000

P

+

C61

347

u10

680

100R506

R505

124 3

P M

UT

E

-31V

FL

VP

DA

C C

LK

D-1

.2

u-C

ON

GN

D

BU

CK

UP

5V

AD

5V

FIL

1

DA

C D

AT

A

P-I

N

MD

DS

TB

MD

7.5

/5V

MD

K-D

AT

A

MD

DS

CK

DF

S

DA

C M

OD

E

FIL

2

MD

DA

TA

MD

5-1

0

MD

LO

AD

MD

SY

N

P-C

NT

MD

RE

ST

E

MD

P-O

UT

RE

SE

T

LOA

D S

W

BU

CK

UP

PD

OW

N

10u1

6C

515

2

1+10u1

6C

516

OUTINGND3

C22

3

0.02

2

+

R518220

R517220

AC100V

F552 1A 125V

1A 125V

+

C65610u16 1K

R654

+

C65510u16

R6531K

150P

100K

R65

2

C65

2C

651

100K

R65

1

150P

C654

27P

R65

9

10

27P

C653

R682

1K

1KR681

1+

-3

2

4

75

+

-6

NC

RESET SW

HP AMP R OUT

HP AMP L OUT

HP AMP GND

AUX VR R OUT

GND

AUX VR L OUT

AUX AMP R GND

AUX AMP L IN

AUX AMP I GND

11

12

AUX AMP R IN

R668 82

8

10KR457

R45810K

8.2Ω

R551

C561 0.01

C55

1

0.01

0.01

C55

2

+

C66

510

0u1082

R667

R61

310

0

R61

4

+

C65

822

0u10

+C

657

220u

10

C45

70.

022

+

C50947u25

+

C5101u50

8.2R502

R66

010

+

C61447u10

R62010K

R61910K

R617330

330R618

R60

2C

602

+22

0PC

604

470

47u1

0+47

u10

C60

1

1+

-

8

2C607

R611220P

3R607

22K

R60

5

C60

322

0P

1K

+

1.5K

47P

C611

100u

10C

615

R60

147

0

7+5

4

-220P

1.5KR612

C608 6

1KR608

22K

R60

6

+

C612

C61

647P

100u

10

C45

582

0P

470P

470P

33K

C45

9

C45

3

R45

3

+

C45147u10

R455R451100330

33K

47u10C452 R452

820P

C45

6

R45

4

470P

C45

4

470P

C46

0

10

9

8

7

6

5

4

3

2

1

100R456

330

+

X90

2

+5V

+5V +5V

+5V

+5V

+5V

+5V

+5V

HP AMP R OUT

HP AMP L OUT

AUX AMP R GND

AUX AMP L IN

AUX AMP L GND

AUX AMP R IN

NC

RESET SW

AUX VR R OUT

HP AMP GND

AUX VR L OUT

GND OPEN

FILMNT 2

FILMNT 1

AD5V

BACK-UP5V

u-COM GND

-31V

D-1, 2

DAC CLK

DAC MODE

DAC DATA

DFS

MD DSCK

MD K-DATA

MD 7.5/5V

MD DSTB

P-IN

MD P-OUT

P-CNT

P MUTE

MD DATA

MD RESET

MD S-ID

MD LOAD

MD SYN

1000

P

C91

5

1000

P

C91

4

49505152535455565859606162636465

C98

30.

1

1000

PC

981

1000

P

C98

2

3

2

1

VR

981-

2V

R90

1-2

VR

901-

1

R97

01K

+

C97

110

u16

100P

C97

0

100

R97

1

29

R924

10K

10K

R97

247

0K

R92310K

R92

047

0K

10K

3

2 1INOUT

GND

R90

6

220K

0.1

C90

6+

C90

71u

50

777675747370696867 71

68P

C904

12P

C905

3331

RA

928

1K

C90

30.

1C

902

0.1

C90

10.

1

C91

00.

1

R902

10K

R90

1

92

R94

0

47K

93

R94

1

47K

94

R94

2

47K

95

R94

3

47K

96

R94

4

47K

97

10

14

15

16

18

20

21

23

29

30

RA927 1K

RA919 1K

RA925 1K

RA926 1K

0.01

C92

2

C92

30.

01

RA918 1K

RA916 1K

RA914 1K

4.7M

R91

01.

8K

R90

9

1KR

A93

3

1KR

A93

1

1KR

A93

0

RA913 1K

RA912 1K

RA908 1K

RA902 1K

RA903 1K

RA904 1K

6.8K

R90

4

12K

R90

3

R90

512

K

R96

910

K

R96

810

K

3.9K

R95

9

1.2K

R95

5

1K

R95

4

1.5K

R95

6

1.8K

R95

7R

958

2.7K

1K

R95

0

1.2K

R95

1

1.5K

R95

2

1.8K

R95

3

15

14

16

18

20

21

23

31

30

33

44

43

42

41

24

23

21

22

20

19

17

16

15

14

13

12

11

18

10

9

8

7

6

5

4

3

2

1

11

10

2

1

3

12

9

8

7

6

5

4

3

2

1

7274 73

P6

P5

P4

76 7578 77

P2

P1

P26

80 7982 81

P28

P29

P30

P27

84 8386 85

ICNX

NX

NX

88 8789

NX

NX

NX

NP P3

9193 92

NPF1

F1

F1

94 90

235G

226G

217G

208G

199G

1810

G

1711

G

1612

G

1513

G

1414

G

1315

G

12P

36

11P

35

10P

34

9P

33

8P

32

7P

31

6IC

5N

P

4N

P

3F

1

2F

1

1F

1

VR

EF

VE

E

US

EG

19

US

EG

20

US

EG

21

US

EG

22

US

EG

23

US

EG

24

AV

SS

DFS0/DFS1

(MD) DSTB

P-CNT

P-IN

(MD) LO/EJ

(MD)MD DATA

(MD) K-DATA

(MD) DSCK

DAC DATA/EX

DAC CLK/EX

DAC MODE

DIG SEL 2

DIG SEL 1

JCG AD

INI/MUTE IN

KEY4

KEY3

KEY2

KEY1

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

XC

OU

T

XC

IN

RE

SE

T

P M

UT

E

RX

-IN

P O

UT

37363534333231

9293949596979899100+

C92

010

u16

L90122uH

+

C90

91u

50

C90

8

1

10

Ω

TIMER RECRANDOM

REMAIN

TOTAL

MONO LP PRGM

- DATETRACKDISCTOC

()

()

()

()

()

()

()

())

( ()) ))

( ((

))

((

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

) (

)(

)(

)(

)(

)(

)(

)(

)(

)(

)((

)

())

(

)(

)(

)(

)(

)((

)

( )

( )

( )

( )

( )

( )

( )

)(

)(

( )

()

()

()

()

()

()

()

()

()

()

()

()

) (

()

()

PCB/SD 2P 97.11.29 2:05 AM y [ W 5

AO AP AR AT AV AXAQ AS AU AW

-28.6V

-28.6V

-28.6V

-28.6V

-28.6V

-28.6V

-28.6V

-28.6V

-28.6V

-19.0V

-19.5V

-28.6V

-28.7V

-26.

9V

-15.

6V

-19.

5V

-24.

5V

-13.

5V

-11.

3V

0V-30.

8V

-30.

8V

-30.

8V

5.1V

-18.7V

-18.3V

-24.6V

-26.7V

-24.3V

-19.0V

-19.0V

-26.5V

-23.6V

-26.5V

-28.7V

-19.5V

-19.0V

-26.5V

-24.3V

-16.2V

-28.6V

0V 0V0V 0V2.1V

2.4V

P4P3

P9

P14

P8

P13

P5

P10

P15

P1

P6

P11

P2

P7

P12

P19P18

P24

P29

P23

P28

P20

P25

P30

P34P33 P35

P16

P21

P26

P31

P17

P22

P27

P32

FL901

(13G-15G)

(1G-12G)

: HL21043TH2UN970

DISPLAY SECTION

CNW902

1

REMAIN

20

19

18

CLOCK

14

15

16

17

13

12

11

10

9

7

8

PMAM

TOTAL

6

5

4

3

2

ANODE CONNECTION

OVER0dB-4-12DATETRACKDISCTOC

RANDOM

REC PRGM

TIMER

MONO LP

15-BT-37G:FL901

2SC2412KR:Q901,902PST9127:IC902IX0196AWZZ:IC901

u-COM

ON/STANDBYI/

SW950

SW955

b

c

d

e

f g

a

15G

col

8a7a

1G2G3G4G5G6G

SWITCH P.C.B.

DM-3090 (2/2)

IC901

45

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

5G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

6G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

3G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

4G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-6

1-7

2-7

3-7

4-7

5-7

11G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

12G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

P24

P25

P26

P27

P28

P29

P30

P31

P32

P33

P34

P35

P36

EEUROPE

R902

12K

DESTINATIONCOUNTRY

JAPAN JABB.

3.9KU.K. T

6a

5a

2a8a

1G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

2G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

4c

7g 3g

3f

5g 1g

7b 3b

col(up)

7f

6b 2b

6f 2f

5b

5f

1b

1f

6c 2c8c

6d 2d8d

6e 2e8e

6g 2g8g

8b

8f

4b

3a7a

1a

3e

14G 13G15G

7d 3d

7e

col(down)

7c

5d

3c

1d

1c

1e

5c

5e

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

7G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

8G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

9G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

5-6

1-7

2-7

3-7

4-7

5-7

10G

1-1

2-1

3-1

4-1

5-1

1-2

2-2

3-2

4-2

5-2

1-3

2-3

3-3

4-3

5-3

1-4

2-4

3-4

4-4

5-4

1-5

2-5

3-5

4-5

5-5

1-6

2-6

3-6

4-6

+5V

1

3

2

3

2

1

C91

7

1000

P10

00P

C91

6

464748

97969594

4948474645

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

56

55

54

53

52

51

R9111M

44

7978

50

93929089888786858483828180

1KR

A93

4

81

R93

0

47K

82

R93

1

47K

83

R93

2

47K

84

R93

3

47K

85

R93

4

47K

86

R93

5

47K

87

R93

6

47K

88

R93

7

47K

89

R93

8

47K

90

R93

9

47K

434241

1KR

A93

7

1KR

A93

6

1KR

A93

5

X901

NX

NX

NX

NX

NX

NC

NC

NC

NC

NC

NC

NC

NC

4850 49

F2

F2

F2

NP

5254 53

NP

P25

P24

P23

5658 57.

P22

P21

P20

P19

55 516062 61

P18

P17

P16

P15

64 6366 65

P14

P13

P12

68 6770 69

P10P9

P8

71P

7

P11

59

47F

2

46F

2

45F

2

44N

P

43N

P

424140393837N

X

363534333231302928N

C

271G

262G

253G

244G

5-7

5-6

5-5

5-4

5-3

5-2

5-1

4-7

4-6

4-5

4-4

4-3

4-2

4-1

3-7

3-6

3-5

3-4

3-3

3-2

3-1

2-7

2-6

2-5

2-4

2-3

2-2

2-11-1

1-2

1-3

1-4

1-5

1-6

1-7

VC

C

US

EG

09

US

EG

11

US

EG

13

US

EG

12

US

EG

15

US

EG

17

US

EG

16

US

EG

14

US

EG

18

US

EG

10

UDIG06

UDIG07

UDIG08

UDIG09

UDIG10

UDIG11

UDIG12

UDIG13

UDIG14

UDIG15

USEG35

USEG34

USEG33

USEG32

USEG31

USEG30

USEG29

USEG28

USEG27

USEG26

USEG25

USEG00

USEG01

USEG02

USEG03

USEG04

USEG05

USEG06

USEG07

USEG08

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

UD

IG05

UD

IG04

UD

IG03

UD

IG02

UD

IG01

UD

IG00

MD

RE

SE

T

(MD

) S

-ID

(MD

) LO

AD

(MD

) S

YN

VS

S

XO

UT

XIN

50494847464544434241403938

8182838485868788899091

14

7

20

13

6

19

12

5

18

11

4

17

10

3

16

9

2

15

8

1

CLOCK

PM

AM

OVER0dB-4-12

()

()

()

()

)(

)(

)(

)(

)(

(

)(

)(

)(

)(

)(

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

()

) (

)(

)(

)(

)

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)(

)((

)

Y22-7510-00

DM-3090

2SB5622SC28782SD468

2SD2012

RN1406RN2404

NJM4560DNJM4565D

NJM4580D

PST9127NR

TC9246F

CAUTION: For continued safety, replace safety criticalcomponents only with manufacturer's recommendedparts (refer to parts list). indicates safety criticalcomponents. For continued protection against risk offire, replace only with same type and rating fuse(s). Toreduce the risk of electric shock, leakage-current orresistance measurements shall be carried out (exposedparts are acceptably insulated from the supply circuit)before the appliance is returned to the customer.

The DC voltage is an actual reading measured with ahigh impedance type voltmeter. The measurement valuemay vary depending on the measuring instruments usedor on the product. Refer to the voltage duringRECORDABLE MD PLAY unless otherwise specified;The value shown in ( ) is the voltage measured at themoment of STOP. The voltage followed by (REC) refersto the value during MD RECORDING.

PCB/SD 2P 97.11.29 2:06 AM y [ W 6

235

239

203

FM

LM

DM

241

248202

234

224

232215

207214

SW1952

SW1956

SW1955

SW1954SW1953

231

223

220

PWB-A

PWB-B

216

212

210

211218

229

225

230

213

221

209

222

205

RH

PU 233

219238

238

237

237

242

243

CN1903

CW1901

A1

A2

B1

B2

A1

A2 B1

B2

247

249

DM-3090 MD MECHA

246

217

206

201

226

208

245

ABCDEFGHiJKLM

M1.7x9.5M1.7x7.5M1.7x2M1.7x2.2M1.7x3M1.7x2.5M1.7x8.9M1.7x51.5W3.2-.5C1.2W3-0.25CM2x4M1.7x3

: N39-1795-45: N09-3426-08: N39-1720-45: N09-3115-08: N39-1730-45: N09-3347-08: N09-3352-08: N39-1750-45: N19-1179-04: N19-2004-04: N09-3350-08: N09-3351-08: N09-3428-08

H

H

Kx2

i

i

J

J

A

A

A

A

D

G

G

G

G

E

Cx2

Cx2Lx4

MM

M

B

B

Fx3

Kx2

1

2

3

A B

Parts with exploded view numbers larger than 700 are not supplied.

DM-3090

47

EXPLODED VIEW (MECHANISM)

DM-3090(K) COVER 97.11.29 0:19 AM y [ W 16

SW955

SW960 SW961 SW959 SW957 SW956 SW958

SW952 SW951 SW953

SW980 SW954A1 ED1SW901

VR901

VR981

REC LEVEL

PHONES LEVEL

J101

LT551 RESET

SW501

TX302 J301 RX302 MULTI CONTROL

ENTERTIMER/DELETETIME DISPLAY TRACK/EDIT DISPLAY/CHARAC.

PHONES

LINE

REC OUT PLAY IN REC IN

DIGITAL

DM-3090

ABCDEFGH

ø 3x8(BLK)ø 2.6x10 ø 3x6ø 3x10(BLK)ø 3x6M 3x6M 4x8ø 3x10

: N89-2008-46: N82-2610-46: N82-3006-46: N82-3010-46: N82-3006-46: N84-3006-45: N82-4008-46: N89-3010-45

Bx6

746

Bx2

Bx2

C

C

Cx3

Dx5

E

Ex2

Ex2

E E

E

Ex2

Fx2

Fx2

B

A

A

Ax3

Gx2

Hx2

Hx2 734

745

726

707

611

615

606

602

742

601

705

720

713

646

243

634

616

631

630x2

630x2

645

J981

636

635

625

603

612

610

637 638 604

1

2

C ED

Parts w

ith exploded numbers larger than 700 are not supplied.

DM

-3090

48

EXPLOD

ED VIEW

(UN

IT)

DM-3090(K) COVER 97.11.29 0:19 AM y[W 13

DM

-309049

PAR

TS LIST

L : Scandinavia K : USA P : Canada R : MexicoY : PX(Far East, Hawaii) T : Europe E : Europe G : GermanyY : AAFES(Europe) X : Australia M : Other Areas

indicates safety critical components.

New PartsParts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

Ref. NoAdd-ress

NewParts Description

Desti-nation

Re-marksParts No.


Ref. NoAdd-ress

NewParts Description Desti-

nationRe-

marksParts No.



C315 CK45FB1H103K CERAMIC 0.010UF KC451,452 CE04KW1A470M ELECTRO 47UF 10WVC453,454 CK45FB1H471K CERAMIC 470PF KC455,456 CK45FB1H821K CERAMIC 820PF KC457 CK45FF1H223Z CERAMIC 0.022UF Z

C459,460 CK45FB1H471K CERAMIC 470PF KC461 CK45FB1H103K CERAMIC 0.010UF KC470 CK45FB1H101K CERAMIC 100PF KC501 CE04KW1E102M ELECTRO 1000UF 25WVC502 CE04KW1E472M ELECTRO 4700UF 25WV

C504 CE04KW1H221M ELECTRO 220UF 50WVC505 CE04KW1H100M ELECTRO 10UF 50WVC507 CE04KW1H330M ELECTRO 33UF 50WVC509 CE04KW1E470M ELECTRO 47UF 25WVC510 CE04KW1H010M ELECTRO 1.0UF 50WV

C511 CE04KW1E470M ELECTRO 47UF 25WVC512 CE04KW1H010M ELECTRO 1.0UF 50WVC513 CE04KW1E470M ELECTRO 47UF 25WVC514-516 CE04KW1C100M ELECTRO 10UF 16WVC517,518 CE04KW1A101M ELECTRO 100UF 10WV

C519 CK45FF1H223Z CERAMIC 0.022UF ZC520 CK45FB1H102K CERAMIC 1000PF KC521 CE04KW1E472M ELECTRO 4700UF 25WVC522 CE04KW0J102M ELECTRO 1000UF 6.3WVC524 CE04KW0J102M ELECTRO 1000UF 6.3WV

C525 CE04KW1A101M ELECTRO 100UF 10WVC530 CK45FF1H223Z CERAMIC 0.022UF ZC531 CF92FV1H104J MF-C 0.10UF JC551,552 CK45FF1H103Z CERAMIC 0.010UF ZC561 CK45FF1H103Z CERAMIC 0.010UF Z

C601,602 CE04KW1A470M ELECTRO 47UF 10WVC603,604 CK45FB1H221K CERAMIC 220PF KC607,608 CK45FB1H221K CERAMIC 220PF KC611,612 C91-0737-05 CERAMIC 47PF JC613,614 CE04KW1A470M ELECTRO 47UF 10WV

C615,616 CE04KW1A101M ELECTRO 100UF 10WVC651,652 CK45FB1H151K CERAMIC 150PF KC653,654 C91-0731-05 CERAMIC 27PF JC655,656 CE04KW1C100M ELECTRO 10UF 16WVC657,658 CE04KW1A221M ELECTRO 220UF 10WV

C665,666 CE04KW1A101M ELECTRO 100UF 10WVC667 CF92FV1H104J MF-C 0.10UF JC901-903 CK73FB1H104Z CHIP C 0.10UF ZC904 CC73FCH1H680J CHIP C 68PF JC905 CC73FCH1H120J CHIP C 12PF J

C906 CK73FB1H104Z CHIP C 0.10UF ZC907 CE04KW1H1R0M ELECTRO 1.0UF 50WVC908 CK73EF1E105Z CHIP C 1.0UF ZC909 CE04KW1H1R0M ELECTRO 1.0UF 50WVC910 CK73FB1H104Z CHIP C 0.10UF Z

C914-917 CK73FB1H102K CHIP C 1000PF KC920 CE04KW1C100M ELECTRO 10UF 16WVC922,923 CK73FB1H103Z CHIP C 0.010UF ZC970 CK73FB1H101K CHIP C 100PF KC971 CE04KW1C100M ELECTRO 10UF 16WV

601 1D A01-3562-08 METALLIC CABINET602 1C A09-0337-08 BATTERY COVER603 2C A29-0898-08 PANEL604 2C A60-1370-08 FRONT PANEL606 1C A70-1208-08 REMOTE CONTROL ASSY

610 2C B10-2457-08 FRONT GLASS611 1C B19-1529-05 OPTICAL FIBER612 2C B43-0302-04 KENWOOD BADGE- B60-3574-08 INSTRUCTION MANUAL T- B60-3575-08 INSTRUCTION MANUAL E

615 1C E30-0505-05 AUDIO CORD616 2E E30-2579-05 AC POWER CORD E616 2E E30-2718-05 AC POWER CORD T

625 2C G01-4048-08 SPRING

- H10-7415-08 POLYSTYRENE FORMED FIXTURE- H13-0291-08 PACKING FIXTURE T- H13-0292-08 CARTON BOARD- H13-0293-08 CARTON BOARD- H20-0601-08 PROTECTION BAG

- H50-2695-08 ITEM CARTON CASE E- H50-2697-08 ITEM CARTON CASE T

630 2D,2E J02-1410-08 INSULATOR631 2E J42-0338-08 POWER CORD BUSHING634 2E J13-0075-05 FUSE HOLDER

635 2C K27-2261-08 KNOB (POWER)636 2D K27-2262-08 KNOB637 1C K29-6946-08 KNOB (JOG)638 1C K29-6947-08 KNOB (REC/HP)

C102 CK45FF1H223Z CERAMIC 0.022UF ZC105,106 CK45FB1H221K CERAMIC 220PF KC107,108 CE04KW1H010M ELECTRO 1.0UF 50WVC109,110 CK45FB1H221K CERAMIC 220PF KC113,114 CC45FSL1H470J CERAMIC 47PF J

C115,116 CE04KW1A470M ELECTRO 47UF 10WVC117,118 CE04KW1A101M ELECTRO 100UF 10WVC119 CK45FF1H223Z CERAMIC 0.022UF ZC201 CE04KW1A101M ELECTRO 100UF 10WVC202,203 CE04KW1A470M ELECTRO 47UF 10WV

C205 CE04KW1E4R7M ELECTRO 4.7UF 25WVC206 CE04KW1H010M ELECTRO 1.0UF 50WVC207 CE04KW1A101M ELECTRO 100UF 10WVC208 C90-3231-05 ELECTRO 3.3UF 25WVC209 CE04KW1E4R7M ELECTRO 4.7UF 25WV

C212 C90-3231-05 ELECTRO 3.3UF 25WVC220 CK45FB1H102K CERAMIC 1000PF KC221 CK45FF1H223Z CERAMIC 0.022UF ZC222,223 CK45FF1H223Z CERAMIC 0.022UF ZC301 CK45FF1H103Z CERAMIC 0.010UF Z

C302-305 CK45FF1H223Z CERAMIC 0.022UF ZC310-314 CK45FF1H223Z CERAMIC 0.022UF Z

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RA903 RK73FB2A102J CHIP R 1.0K J 1/10WRA908 RK73FB2A102J CHIP R 1.0K J 1/10WRA912 RK73FB2A102J CHIP R 1.0K J 1/10WRA913 RK73FB2A102J CHIP R 1.0K J 1/10WRA914 RK73FB2A102J CHIP R 1.0K J 1/10W



RA934 RK73FB2A102J CHIP R 1.0K J 1/10WRA935 RK73FB2A102J CHIP R 1.0K J 1/10WRA937 RK73FB2A102J CHIP R 1.0K J 1/10WVR901 R39-0016-08 VIRIABLE RESIST 5k (AUX VOL.)VR981 R39-0017-08 VARIABLE RESIST 1k (HP VOL.)

SW501 S68-0091-08 SWITCH RESETSW901 T99-0607-08 SWITCH JOGSW950 S70-0057-08 SWITCH POWERSW951 S70-0057-08 SWITCH PLAYSW952 S70-0057-08 SWITCH STOP

SW953 S70-0057-08 SWITCH RECSW954 S70-0057-08 SWITCH CUESW955 S70-0057-08 SWITCH EJECTSW956 S70-0057-08 SWITCH ENTERSW957 S70-0057-08 SWITCH NAME

SW958 S70-0057-08 SWITCH TIMERSW959 S70-0057-08 SWITCH DISPSW960 S70-0057-08 SWITCH REVIEWSW961 S70-0057-08 SWITCH TIME

D301 MTZJ5.1(B) DIODED501 MTZJ6.8(B) DIODED502 MTZJ330A DIODED503,504 MTZJ9R1B DIODED505 MTZJ6.8 DIODE

D506 MTZJ7.5(B) DIODED507 MTZJ5.6 DIODED508 MTZJ270D DIODED509,510 1SS133 DIODED512,513 1SS133 DIODE

D551-555 RL104A DIODED651 MTZJ9R1B DIODEFL901 B30-2527-08 INDICATOR TUBEIC101 NJM4565D IC(OP AMP X2))IC201 UDA1340 IC

IC301 74HCU04 ICIC302 74HC10AP ICIC501 S81233YX ICIC601 NJM4580D IC(OP AMP X2))IC651 NJM4560D IC(OP AMP X2))

C981,982 CK73FB1H102K CHIP C 1000PF KC983 CK73FB1E104Z CHIP C 0.10UF Z

CNW301 E35-2102-08 CONNECTOR ASSY 4PINCNP471 E40-8226-08 PLUG 24PINCNP472 E40-8227-08 PLUG 24PINCNP473 E40-8262-08 CONNECTOR 12PINCNP902 E40-8263-08 PLUG 24PIN

CNW901 E35-2143-08 FLAT CABLE 3PINCNW902 E35-2144-08 FLAT CABLE 4PINCNW903 E40-8231-08 CONNECTOR ASSY 12PINJ101 E63-1031-08 ANALOGUE OUTPUT TERMINALJ301 E63-1032-08 DIGITAL INPUT TERMINAL

J981 E11-0345-08 HEAD PHONE JACK

F551,552 F53-0162-08 FUSE T1A250V

L101 L90-0304-08 COIL 0.22UHL201,202 L90-0305-08 COIL 10UHL301,302 L90-0305-08 COIL 10UHL901 L90-0306-08 COIL 22UHT551 L07-2543-08 POWER TRANSFORMER

X901 L77-2227-08 FILTER 4.19MHzX902 L77-2168-08 CRYSTAL 32.768kHz

R501,502 X1067 POSISTOR 8.2R511 X1066 POSISTOR 8.2R551 X1067 POSISTOR 8.2R901 RK73FB2A103J CHIP R 10K J 1/10WR902 RK73FB2A392J CHIP R 3.9K J 1/10W

R903 RK73FB2A123J CHIP R 12K J 1/10WR904 RK73FB2A682J CHIP R 6.8K J 1/10WR905 RK73FB2A123J CHIP R 12K J 1/10WR906 RK73FB2A224J CHIP R 220K J 1/10WR909 RK73FB2A182J CHIP R 1.8K J 1/10W

R910 RK73FB2A475J CHIP R 4.7M J 1/10WR911 RK73FB2A105J CHIP R 1.0M J 1/10WR920 RK73FB2A474J CHIP R 470K J 1/10WR922-924 RK73FB2A103J CHIP R 10K J 1/10WR926 RK73FB2A102J CHIP R 1.0K J 1/10W

R930-645 RK73FB2A473J CHIP R 47K J 1/10WR950 RK73FB2A102J CHIP R 1.0K J 1/10WR951 RK73FB2A122J CHIP R 1.2K J 1/10WR952 RK73FB2A152J CHIP R 1.5K J 1/10WR953 RK73FB2A182J CHIP R 1.8K J 1/10W

R954 RK73FB2A102J CHIP R 1.0K J 1/10WR955 RK73FB2A122J CHIP R 1.2K J 1/10WR956 RK73FB2A152J CHIP R 1.5K J 1/10WR957 RK73FB2A182J CHIP R 1.8K J 1/10WR958 RK73FB2A272J CHIP R 2.7K J 1/10W

R959 RK73FB2A392J CHIP R 3.9K J 1/10WR960 RK73FB2A562J CHIP R 5.6K J 1/10WR968,969 RK73FB2A103J CHIP R 10K J 1/10WR970 RK73FB2A102J CHIP R 1.0K J 1/10WR971 RK73FB2A101J CHIP R 100 J 1/10W

R972 RK73FB2A474J CHIP R 470K J 1/10W



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C1656,57 CK73GB1H562K CHIP C 5600PF KC1661 C92-0151-08 ELECTRO 100UF 10WVC1724 CC73GCH1H220J CHIP C 22PF JC1801 CK73EF1C225Z CHIP C 2.2UF ZC1802 C92-0151-08 ELECTRO 100UF 10WV

C1803 CK73EF1C225Z CHIP C 2.2UF ZC1805 CK73FF1C105Z CHIP C 1.0UF ZC1806 C92-0172-08 CHIP-C 10UF KC1807 C92-0174-08 ELECTRO 220UF 4WVC1913 CC73GCH1H220J CHIP C 22PF J

C1917 CC73GCH1H680J CHIP C 68PF JC1927 CK73GB1C473K CHIP C 0.047UF KC1951 CK73GB1C473K CHIP C 0.047UF KC1952 C93-0035-08 CERAMIC 0.01UF KC1953 CK73FB1C474K CHIP C 0.47UF K

C1954 CC73GCH1H150J CHIP C 15PF JC1955 CK73GB1C473K CHIP C 0.047UF KC1956 C92-0175-08 ELECTRO 47UF 6.3WVC1957 C92-0176-08 ELECTRO 100UF 6.3WVC1958 CK73GB1C473K CHIP C 0.047UF K

C1964 CK73GB1H102K CHIP C 1000PF KC1990 C93-0033-08 CERAMIC 1UF KC1991 C92-0172-08 CHIP-C 10UF KJC121 CK73GB1C473K CHIP C 0.047UF KJC170,71 CC73FCH1H220J CHIP C 22PF J

JC196 CC73FCH1H220J CHIP C 22PF J

CN1101 E40-8210-08 FLAT CABLE CONNECTOR 28PCN1252 E40-8080-08 PIN ASSY 2PCN1601 E40-8211-08 FLAT CABLE CONNECTOR 5PCN1602 E40-8212-08 PIN ASSY 2PCN1603 E40-8078-08 PIN ASSY 2P

CN1604 E40-8213-08 PIN ASSY 2PCN1901 E40-8209-08 FLAT CABLE CONNECTORCN1902 E40-8214-08 FLAT CABLE CONNECTOR 24PCN1904 E40-8084-08 PIN ASSY 4PCW1901 E35-2070-08 FLAT CABLE

CW1903 2D E35-2069-08 WIRING HARNESS

L1101 L90-0099-08 COIL 10UHL1102 L90-0100-08 COIL 0.47UHL1201 L90-0100-08 COIL 0.47UHL1203 L90-0301-08 COIL 4.7UHL1251 L90-0302-08 COIL 470UH

L1601 L90-0303-08 COIL 1UHL1950 L90-0303-08 COIL 1UHXL1201 L77-2224-08 CRYSTAL 33.8688MHZ

C1111 R92-1824-08 JUMPER R 0 J 1/10WJ1405 RK73GB1J103J CHIP R 10K J 1/16WLR190 RK73FB2A220J CHIP R 22 J 1/10WR1100 RK73EB2B270J CHIP R 27 J 1/8WR1102 RK73GB1J561J CHIP R 560 J 1/16W

R1105 RK73GB1J394J CHIP R 390K J 1/16WR1106 RK73GB1J103J CHIP R 10K J 1/16WR1107 RK73GB1J1R0J CHIP R 1 J 1/16W

IC901 IX0196AWZZ ICIC902 PST9127NR IC(SYSTEM RESET)Q451,452 2SC2878 TRANSISTORQ501 KTA1266(Y) TRANSISTORQ502 2SB562 TRANSISTOR

Q503 2SD468 TRANSISTORQ504 2SD2012 TRANSISTORQ505 KRC102M TRANSISTORQ506 2SD2012 TRANSISTORQ601,602 2SC2878 TRANSISTOR

Q653 KRC102M TRANSISTORQ901,902 2SC2412 TRANSISTORRX302 W02-2643-08 OPTICAL DIGITAL OUTPUTTX302 W02-2643-08 OPTICAL DIGITAL INPUTUN970 W02-2642-08 REMOCON SENSOR 21043TH2

C1101 C93-0033-08 CERAMIC 1UF KC1102 C93-0033-08 CERAMIC 1UF KC1103 CK73FF1C105Z CHIP C 1.0UF ZC1104 CK73FB1H273K CHIP C 0.027UF KC1105 C93-0033-08 CERAMIC 1UF K

C1106 CK73FB1C474K CHIP C 0.47UF KC1107 CK73FB1H472K CHIP C 4700PF KC1109 C93-0033-08 CERAMIC 1UF KC1110 CK73FB1C474K CHIP C 0.47UF KC1112-16 C93-0034-08 CERAMIC 270PF J

C1117 CK73GB1H332K CHIP C 3300PF KC1118 CK73FB1H333K CHIP C 0.033UF KC1121 CK73FF1C105Z CHIP C 1.0UF ZC1145 CK73GB1C333K CHIP C 0.033UF KC1202,03 CK73FF1C105Z CHIP C 1.0UF Z

C1204,05 CC73GCH1H120J CHIP C 12PF JC1206,07 CK73FF1C105Z CHIP C 1.0UF ZC1208 CK73GB1C473K CHIP C 0.047UF KC1209-11 CK73FF1C105Z CHIP C 1.0UF ZC1251 CK73GB1C273K CHIP C 0.027UF K

C1252 CC73FCH1H121J CHIP C 120PF JC1254 C92-0172-08 CHIP-C 10UF KC1255 C92-0171-08 CHIP-C 4.7UF KC1401,02 CK73GB1C473K CHIP C 0.047UF KC1403 CK73GB1H681K CHIP C 680PF K

C1405 CK73GF1E104Z CHIP C 0.10UF ZC1406 CK73FF1C105Z CHIP C 1.0UF ZC1407 CK73GB1C223K CHIP C 0.022UF KC1412 CK73GB1H681K CHIP C 680PF KC1421-24 CK73GB1C223K CHIP C 0.022UF K

C1425 CK73GB1C473K CHIP C 0.047UF KC1601,02 CK73FF1C105Z CHIP C 1.0UF ZC1604 CC73GCH1H560J CHIP C 56PF JC1605 C92-0151-08 ELECTRO 100UF 10WVC1609 CK73EF1C105Z CHIP C 1.0UF Z

C1610 C92-0172-08 CHIP-C 10UF KC1631 CK73FF1C105Z CHIP C 1.0UF ZC1650-53 CC73GSL1H821J CHIP C 820PF JC1654,55 CK73GB1E153K CHIP C 0.015UF K



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R1614 R92-1871-08 METAL 18K D 1/16WR1617 RK73GB1J473J CHIP R 47K J 1/16WR1620 R92-1823-08 JUMPER R 0 J 1/16WR1650 RK73GB1J103J CHIP R 10K J 1/16WR1651 RK73GB1J104J CHIP R 100K J 1/16W

R1652 RK73GB1J103J CHIP R 10K J 1/16WR1653 RK73GB1J104J CHIP R 100K J 1/16WR1654 RK73GB1J682J CHIP R 6.8K J 1/16WR1655 RK73GB1J124J CHIP R 120K J 1/16WR1656 RK73GB1J682J CHIP R 6.8K J 1/16W

R1657 RK73GB1J124J CHIP R 120K J 1/16WR1658 RK73GB1J153J CHIP R 15K J 1/16WR1659 RK73GB1J823J CHIP R 82K J 1/16WR1660 RK73GB1J153J CHIP R 15K J 1/16WR1661 RK73GB1J823J CHIP R 82K J 1/16W

R1662 RK73GB1J103J CHIP R 10K J 1/16WR1663 RK73GB1J623J CHIP R 62K J 1/16WR1664 RK73GB1J103J CHIP R 10K J 1/16WR1665 RK73GB1J623J CHIP R 62K J 1/16WR1666,67 RK73GB1J223J CHIP R 22K J 1/16W

R1668,69 RK73GB1J682J CHIP R 6.8K J 1/16WR1708 RK73GB1J682J CHIP R 6.8K J 1/16WR1733 RK73GB1J102J CHIP R 1.0K J 1/16WR1758,59 RK73GB1J102J CHIP R 1.0K J 1/16WR1801 RK73GB1J182J CHIP R 1.8K J 1/16W

R1802 RK73GB1J271J CHIP R 270 J 1/16WR1804 R92-1873-08 METAL 220K D 1/16WR1805 R92-1874-08 METAL 100K D 1/16WR1808 RK73GB1J273J CHIP R 27K J 1/16WR1809 RK73GB1J391J CHIP R 390 J 1/16W

R1820,21 RK73FB2A1R0J CHIP R 1 J 1/10WR1827 RK73GB1J271J CHIP R 270 J 1/16WR1901 RK73FB2A471J CHIP R 470 J 1/10WR1902 RK73FB2A182J CHIP R 1.8K J 1/10WR1903,04 RK73FB2A821J CHIP R 820 J 1/10W

R1927 RK73FB2A220J CHIP R 22 J 1/10WR1939 RK73GB1J102J CHIP R 1.0K J 1/16WR1940 RK73FB1J221J CHIP R 220 J 1/16WR1947 RK73FB2A470J CHIP R 47 J 1/10WR1952,53 RK73GB1J470J CHIP R 47 J 1/16W

R1961 RK73GB1J101J CHIP R 100 J 1/16WR1962 RK73GB1J224J CHIP R 220K J 1/16WR1963 RK73GB1J152J CHIP R 1.5K J 1/16WR1964 RK73GB1J682J CHIP R 6.8K J 1/16WR1965 RK73GB1J103J CHIP R 10K J 1/16W

R1967 RK73GB1J470J CHIP R 47 J 1/16WR1968 RK73GB1J221J CHIP R 220 J 1/16WR1969 RK73EB2B560J CHIP R 56 J 1/8WR1973 RK73GB1J682J CHIP R 6.8K J 1/16WR1974 RK73GB1J221J CHIP R 220 J 1/16W

R1994 RK73GB1J470J CHIP R 47 J 1/16W

SW1952 2D S68-0090-08 PUSH SWITCHSW1953 2D S64-0023-05 LEVER SWITCHSW1954,55 2D S64-0035-08 LEVER SWITCH

R1150-54 RK73GB1J223J CHIP R 22K J 1/16WR1155 RK73GB1J563J CHIP R 56K J 1/16WR1166 RK73GB1J122J CHIP R 1.2K J 1/16WR1201 RK73GB1J151J CHIP R 150 J 1/16WR1202 RK73GB1J105J CHIP R 1.0M J 1/16W

R1210 RK73GB1J101J CHIP R 100 J 1/16WR1211 RK73GB1J221J CHIP R 220 J 1/16WR1221 RK73GB1J221J CHIP R 220 J 1/16WR1223 RK73FB2A681J CHIP R 680 J 1/10WR1251 RK73GB1J100J CHIP R 10 J 1/16W

R1252,53 R92-1824-08 JUMPER R 0 J 1/10WR1254 RK73FB2A221J CHIP R 220 J 1/10WR1255 R92-1823-08 JUMPER R 0 J 1/16WR1261-63 RK73GB1J103J CHIP R 10K J 1/16WR1266 RK73GB1J103J CHIP R 10K J 1/16W

R1269 R92-1823-08 JUMPER R 0 J 1/16WR1281 RK73GB1J470J CHIP R 47 J 1/16WR1401 RK73GB1J102J CHIP R 1.0K J 1/16WR1404 RK73GB1J102J CHIP R 1.0K J 1/16WR1406,07 RK73GB1J332J CHIP R 3.3K J 1/16W

R1408 RK73GB1J104J CHIP R 100K J 1/16WR1409 RK73GB1J102J CHIP R 1.0K J 1/16WR1412 RK73GB1J104J CHIP R 100K J 1/16WR1413 RK73GB1J332J CHIP R 3.3K J 1/16WR1414 RK73GB1J103J CHIP R 10K J 1/16W

R1415 RK73GB1J102J CHIP R 1.0K J 1/16WR1416 RK73GB1J103J CHIP R 10K J 1/16WR1418 RK73GB1J473J CHIP R 47K J 1/16WR1420 RK73GB1J102J CHIP R 1.0K J 1/16WR1422-24 RK73GB1J103J CHIP R 10K J 1/16W

R1425 RK73GB1J272J CHIP R 2.7K J 1/16WR1426 RK73GB1J102J CHIP R 1.0K J 1/16WR1427 RK73GB1J472J CHIP R 4.7K J 1/16WR1428 RK73GB1J102J CHIP R 1.0K J 1/16WR1429,30 RK73GB1J103J CHIP R 10K J 1/16W

R1452 RK73GB1J332J CHIP R 3.3K J 1/16WR1454 RK73GB1J102J CHIP R 1.0K J 1/16WR1456 RK73GB1J102J CHIP R 1.0K J 1/16WR1458 RK73GB1J682J CHIP R 6.8K J 1/16WR1459 RK73GB1J103J CHIP R 10K J 1/16W

R1460 RK73GB1J682J CHIP R 6.8K J 1/16WR1462 RK73GB1J682J CHIP R 6.8K J 1/16WR1463 RK73GB1J103J CHIP R 10K J 1/16WR1464 RK73GB1J221J CHIP R 220 J 1/16WR1466 RK73GB1J221J CHIP R 220 J 1/16W

R1471 RK73GB1J103J CHIP R 10K J 1/16WR1472 RK73GB1J473J CHIP R 47K J 1/16WR1473 RK73GB1J104J CHIP R 100K J 1/16WR1474-76 RK73GB1J102J CHIP R 1.0K J 1/16WR1477 RK73GB1J103J CHIP R 10K J 1/16W

R1609 RK73GB1J152J CHIP R 1.5K J 1/16WR1610 R92-1869-08 METAL 30K D 1/16WR1611 R92-1870-08 METAL 12K D 1/16WR1612 RK73GB1J563J CHIP R 56K J 1/16WR1613 RK73GB1J273J CHIP R 27K J 1/16W



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226 2A D13-1863-08 LACK GEAR229 1A D13-1864-08 GEAR230 1A D14-0394-08 ROLLER231 2A D19-0312-08 LEAD SCREW232 2A D21-1895-08 SHAFT

233 2A D10-3699-08 ROD234 3A D10-3702-08 ROD235 1B A01-3562-08 CASE237 2B J02-1183-08 INSULATOR238 2B J02-1184-08 INSULATOR

239 1B G11-2380-08 CUSHION242 2B E35-2067-08 FLAT CABLE243 2B E35-2068-08 WIRING HARNESS245 1A F19-1083-08 SHEET

246 3B D10-3796-08 ARM(A)247 3B D10-3797-08 ARM(B)

250 F19-1084-08 SHEET

249 3B G09-0666-08 SPRING (ARM)

248 J90-0859-08 MOUNTING HARDWARE

B N09-3426-08 SCREW M1.7X7.5D N09-3115-08 SCREW M1.4X2.2F N09-3347-08 SCREW M1.7X2.5G N09-3352-08 SCREW M1.7X8.9K N09-3350-08 SCREW M2.0X4.0

L N09-3351-08 SCREW M1.7X3.0M N09-3428-08 SCREW

DM 3A T42-0904-08 MOTOR ASSY M901FM 3A T42-0905-08 MOTOR ASSY M902LM 3A T42-0906-08 MOTOR ASSY M903PU 2A T25-0073-08 OPTICA PICKUPRH 1A T30-0017-08 RECORDING HEAD

SW1956 2D S64-0036-08 LEVER SWITCH

D1251,52 SB0209CP DIODED1990 1SS372 DIODEIC1101 IR3R55 ICIC1201 LR37648 ICIC1202 IX2474AF IC

IC1251 74ACT02F ICIC1401 IX0227AW ICIC1402 S29294A ICIC1601 M56578FP ICIC1801 XC62EP32 IC

IC1906 TC7ST08F ICIC1907 TC9246F IC(CLOCK GENERATION)IC1916 74VHC08FT ICIC1990 74AC04FS ICQ1251,52 2SK2909 FET

Q1253,54 2SK1473 FETQ1401 RN2404 TRANSISTORQ1402 RNC1404 TRANSISTORQ1403 RN2404 TRANSISTORQ1404 RNC1404 TRANSISTOR

Q1451 RNC1407 TRANSISTORQ1601 2SA1314C TRANSISTORQ1801 2SA1314C TRANSISTORQ1802,03 RN1406 TRANSISTORQ1807 2SA1314C TRANSISTOR

Q1820 2SA1162G TRANSISTORQ1821,22 RNC1407 TRANSISTOR

201 2B J90-0857-08 GUIDE202 3A J90-0858-08 GUIDE203 2B A13-3122-08 FRAME204 A10-3416-08 CHASSIS ASSY205 1A J19-5899-08 HOLDER

206 2A D10-3789-08 SLIDER ASSY207 3B D10-3790-08 ARM208 1A D10-3791-08 ARM209 2A D10-3792-08 ARM ASSY210 1A D10-3793-08 SLIDER

211 1A D10-3794-08 ARM212 1A D10-3795-08 SLIDER213 1A G01-4046-08 TORSION COIL SPRING214 3A G01-4047-08 TORSION COIL SPRING215 2A G01-3972-08 EXTENSION SPRING

216 1A G01-3974-08 EXTENSION SPRING217 2A G01-3971-08 EXTENSION SPRING218 1A G01-3976-08 TORSION COIL SPRING219 2A G02-1651-08 FLAT SPRING220 2B G02-1652-08 FLAT SPRING

221 2A G01-3973-08 EXTENSION SPRING222 2A D13-1859-08 GEAR223 2A D13-1860-08 GEAR224 3A D13-1861-08 GEAR225 2A D13-1862-08 GEAR



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DM-3090SPECIFICATIONS

[Format]System ................................................................................................................ Minidisc digital audio systemLaser ................................................................................................................... Semiconductor laserRecording method ............................................................................................. Field modulation overwrite methodAudio compression ............................................................................................ ATRAC (Adaptive TRansform Acoustic Coding)Playing rotation .................................................................................................. Approx. 400 rpm ~ 900 rpm (CLV)

[D/A, A/D converter]D/A converter ..................................................................................................... 1 BitSampling frequency ........................................................................................... 44.1 kHz

[Digital audio performance]Frequency responce (playback mode) ............................................................. 8 Hz ~ 20 kHz, ± 1 dBSignal to noise ratio (playback mode) ............................................................... More than 100 dBWow & flutter ...................................................................................................... Less than unmeasurable limitAnalog input sensitivity / input impedance ...................................................... 0.5V / 22 kΩ or moreAnalog output level/output impedance ............................................................ 2.0 V / Less than 2 kΩ

Headphone output ........................................................................................ 15 mW/32 Ω loadDigital input Coxaial .............................................................................................................. 0.5 Vp-p / 75 Ω Optical(Wave length 660 nm) ........................................................................... - 15 dBm ~ - 21 dBmDigital output Optical(Wave length 660 nm) .......................................................................... - 15 dBm ~ - 21 dBm

[General]Power consumption ........................................................................................... 17 WDimensions ......................................................................................................... W: 440 mm (17 - 5 / 16”)

........................................................................................................................ H : 94 mm ( 3 - 11 / 16”)

........................................................................................................................ D : 300 mm (11 - 13 / 16”)Weight (Net) ........................................................................................................ 3.55 kg (7.9 lb)

1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.2. The full performance may not be exhibited in an extremely cold location (under a water-freezing temperature).NotesNotes

14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan

KENWOOD SERVICE CORPORATIONP.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.

KENWOOD ELECTRONICS CANADA INC.6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS LATIN AMERICA S.A.P.O BOX 55-2791, Piso 6 plaza Chase, Cl. 47 y Aquilino de la Guardia Panama, Republic de Panama

KENWOOD ELECTRONICS U.K. LIMITEDKENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom

KENWOOD ELECTRONICS BENELUX N.V.Meachelsesteenweg 418, B-1930 Zaventem, Belgium

KENWOOD ELECTRONICS DEUTSCHLAND GMBHRembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS FRANCE S.A.13 Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS ITALIA S.p.A.Via G. Sirtori, 7/9 20129, Milano, ltaly

KENWOOD IBÉRICA S.A.Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.(A.C.N. 001499 074) P.O Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia

KENWOOD & LEE ELECTRONICS, LTD.Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong

KENWOOD ELECTRONICS GULF FZEP.O.Box 61318, Jebel Ali, Dubai, U.A.E.

KENWOOD ELECTRONICS SINGAPORE PTE LTD. No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544

KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul EhsanMalaysia

Note:Component and circuit are subject to modification to insure best operationunder differing local conditions. This manual is based on Europe (E) standard,and provides information on regional circuit modification through use of alter-nate schematic diagrams, and information on regional component variationsthrough use of parts list.

DM-3090(K) COVER 97.11.29 0:18 AM y [ W 1

Kenwood DM-3090 Md Recorder Service Manal

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