Sony Hcd Nxm4d Ver 1.0

HCD-NXM4DE Model

Australian ModelSERVICE MANUAL

DISPLAY SIDE Hi-Fi COMPONENT SYSTEMSony CorporationHome Audio CompanyPublished by Sony Engineering Corporation

9-877-971-012004F02-1 2004.06

SPECIFICATIONS

Ver 1.0 2004. 06

Continued on next page

HCD-NXM4D is the Amplifier, DVD player,tape deck and tuner section in DHC-NXM4D.

Model Name Using Similar Mechanism NEWDVD DVD Mechanism Type CDM81A-DVBU60

Section Base Unit Name DVBU60Optical Pick-up Name DBU-3

TAPE Model Name Using Similar Mechanism HCD-CPX22Section

Main unitAmplifier sectionThe following measured at AC 120, 127, 220, 240 V, 50/60 HzDIN power output (rated): 60 + 60 watts

(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)Front speaker: 75 + 75 watts

(6 ohms at 1 kHz, 10% THD)Center speaker: 40 watts (6 ohms at 1 kHz, 10% THD)Surround speaker: 40 + 40 watts

(6 ohms at 1 kHz, 10% THD)Sub woofer: 120 watts

(4 ohms at 100 Hz, 10% THD)InputsVIDEO/SAT IN (phono jacks):

voltage 250/450 mV, impedance 47kilohms

MIC1/MIC2 (phone jacks): sensitivity 1 mV, impedance 10kilohms

OutputsVIDEO/SAT OUT (phono jacks):

voltage 250 mV, impedance 1 kilohmVIDEO OUT (phono jack): max. output level

1 Vp-p, unbalanced, Sync negative,load impedance 75 ohms

S VIDEO OUT (4-pin/mini-DIN jack):Y: 1 Vp-p, unbalanced,Sync negative, C: 0.286 Vp-p, loadimpedance 75 ohms

COMPONENT VIDEO OUT:Y: 1 Vp-p, 75 ohmsPB, PR: 0.7 Vp-p, 75 ohms

PHONES (stereo mini jack): accepts headphones of 8 ohms ormore

FRONT SPEAKER: Use only the supplied speakerSS-NXM4D

SURROUND SPEAKER: Use only the supplied speakerSS-RS400S

CENTER SPEAKER : Use only the supplied speakerSS-CT400S

SUB WOOFER SPEAKER: Use only the supplied speakerSS-WG4D

2HCD-NXM4D

Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270C

during repairing. Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times). Be careful not to apply force on the conductor when soldering

or unsoldering.

CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.

This appliance is classified asa CLASS 1 LASER product.This label is located on the rearexterior.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.

Disc player sectionSystem Compact disc and digital audio and

video systemLaser Semiconductor laser

(DVD: =650 nm, CD: =780 nm)Emission duration: continuous

Frequency response DVD (PCM 48 kHz):2 Hz 22 kHz (1 dB)CD: 2 Hz 20 kHz (1 dB)

Video color system format Latin American model: NTSCOther models: NTSC, PAL

Tape deck sectionRecording system 4-track 2-channel stereoFrequency response 50 13,000 Hz (3 dB), using Sony

TYPE I cassette

Tuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning range 87.5 108.0 MHz (50 kHz step)Antenna FM lead antennaAntenna terminals 75 ohms unbalancedIntermediate frequency 10.7 MHzAM tuner sectionTuning rangeLatin American models: 530 1,710 kHz

(with the interval set at 10 kHz)531 1,710 kHz(with the interval set at 9 kHz)

Saudi Arabian models: 531 1,602 kHz(with the interval set at 9 kHz)

Other models: 531 1,602 kHz(with the interval set at 9 kHz)530 1,710 kHz(with the interval set at 10 kHz)

Antenna AM loop antennaAntenna terminals External antenna terminalIntermediate frequency 450 kHz

GeneralPower requirementsAustralian model: 230 240 V AC, 50/60 HzSaudi Arabian model: 120 127 V or 220 240 V AC,

50/60 HzAdjustable with voltage selector

Thai model: 220 V AC, 50/60 HzOther models: 120 V or 220 240 V AC, 50/60 Hz

Adjustable with voltage selectorPower consumption 315 watts

Dimensions (w/h/d) Approx. 230 x 290 x 355 mmMass Approx. 7.0 kg

Design and specifications are subject to change without notice.

3HCD-NXM4D

TABLE OF CONTENTS

1. SERVICING NOTES ................................................ 4

2. GENERALLocation of Controls ........................................................ 5

3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 73-2. Case ................................................................................. 83-3. Back Panel ....................................................................... 83-4. DVD Section ................................................................... 93-5. Main Board ...................................................................... 103-6. Front Panel ...................................................................... 103-7. Front Amp Boardm Sur Amp Board ................................ 113-8. Tape Mechanism Deck .................................................... 123-9. Panel Board ..................................................................... 123-10. Video Board ..................................................................... 133-11. DMB07 Board, DVD Mechanism Deck

(CDM81A-DVBU60) ...................................................... 133-12. Tray .................................................................................. 143-13. Motor Board, M761 (LD/ST Motor),

M762 (BU U/D Motor) ................................................... 143-14. Base Unit (DVBU60) ...................................................... 153-15. RF Board ......................................................................... 153-16. Optical Pick-Up (DBU-3) ............................................... 16

4. TEST MODE .............................................................. 17

5. MECHANICAL ADJUSTMENTS ....................... 19

6. ELECTRICAL ADJUSTMENTSDeck section .................................................................... 26Video Section .................................................................. 27

7. DIAGRAMS7-1. Circuit Board Location .................................................... 297-2. Block Diagram DVD DSP (1/2) Section .................. 317-3. Block Diagram DVD DSP (2/2) Section .................. 327-4. Block Diagram Tuner/Tape Deck Section ................ 337-5. Block Diagram Main Section ................................... 347-6. Block Diagram Amp Section .................................... 35

7-7. Printed Wiring Board RF Board ............................... 367-8. Schematic Diagram RF Board .................................. 377-9. Printed Wiring Board DVD Mechanism Board ....... 387-10. Schematic Diagram DVD Mechanism Board .......... 397-11. Printed Wiring Board DMB07 Board (Side A) ........ 407-12. Printed Wiring Board DMB07 Board (Side B) ........ 417-13. Schematic Diagram DMB07 Board (1/6) ................. 427-14. Schematic Diagram DMB07 Board (2/6) ................. 437-15. Schematic Diagram DMB07 Board (3/6) ................. 447-16. Schematic Diagram DMB07 Board (4/6) ................. 457-17. Schematic Diagram DMB07 Board (5/6) ................. 467-18. Schematic Diagram DMB07 Board (6/6) ................. 477-19. Printed Wiring Board Video Board .......................... 487-20. Schematic Diagram Video Board ............................. 497-21. Printed Wiring Boards Main Board .......................... 507-22. Schematic Diagram Main Board (1/3) ..................... 517-23. Schematic Diagram Main Board (2/3) ..................... 527-24. Schematic Diagram Main Board (3/3) ..................... 537-25. Printed Wiring Boards Panel Board ......................... 547-26. Schematic Diagram Panel Board ............................... 557-27. Printed Wiring Board Disc SW, Vol, HP Board ....... 567-28. Schematic Diagram Disc SW, Vol, HP Board .......... 577-29. Printed Wiring Board Front Amp Board .................. 587-30. Schematic Diagram Front Amp Board ..................... 597-31. Printed Wiring Board SURAmp Board .................... 607-32. Schematic Diagram SUR Amp Board ...................... 617-33. IC Block Diagram ........................................................... 638. EXPLODED VIEWS8-1. Case, Rear Panel Section ................................................. 788-2. Front Panel Section ......................................................... 798-3. Chassis Section ................................................................ 808-4. DVD Mechanism Deck Section-1

(CDM81A-DVBU60) ..................................................... 818-5. DVD Mechanism Deck Section-2

(CDM81A-DVBU60) ..................................................... 828-6. DVD Mechanism Deck Section-3

(CDM81A-DVBU60) ..................................................... 838-7. Base Unit (DVBU60) ...................................................... 84

9. ELECTRICAL PARTS LIST ................................ 85

4HCD-NXM4DSECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observefrom more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the S curve check in CD section adjustment and checkthat the S curve waveform is output several times.

SERVICE POSITION FOR TAPE MECHANISM DECK

tape mechanism deck

Jig (J-2501-271-A)

Jig (J-2501-270-A)CN301

CN302

NOTE ON CD/DVD MECHANISM DECK EXCHANGEIf CD/DVD mechanism deck is exchanged while the desk had gone into trays 2 or 3, since the address is memorized by the microprocessor,the set will not operate normally.In this case, please perform cold reset with reference to test mode (page 17.)

AbbreviationE2 : 120 V AC Area in E modelE3 : 240 V AC Area in E modelE15 : Iran modelEA : Saudi Arabia modelSP : Singapore modelMY : Malaysia modelAUS : Australian modelTH : Thai model

MODEL IDENTIFICATION Back Panel

MODEL PART No.SP, MY models 4-253-361-0[]E2 model 4-253-361-1[]E3, E15 model 4-253-361-2[]EA model 4-253-361-3[]AUS model 4-253-361-4[]TH model 4-253-361-5[]

PART No.

5HCD-NXM4DSECTION 2GENERAL This section is extracted

from instruction manual.LOCATING THE CONTROLS

Main unit

ALBUM +/ qaCD SYNC wgDeck A w;Deck B qgDIMMER whDISC 1 5 3Disc tray 9DISPLAY wjDisplay window 4DSGX qsDVD eaDVD MENU qaDVD TOP MENU qa

ECHO LEVEL qjMIC1/MIC2 jacks qhMIC LEVEL qkPHONES jack qlRemote sensor 2SOUND MODE control wd SOUND SELECT control ws TAPE A/B wlTUNER/BAND e;TUNING +/ 0VIDEO/SAT wkVOLUME control qd

?/1 (power) 1nN (play) 5X (pause) 6x (stop) 7DVD Z (open/close) 8.m/M> (rewind/fast

forward, go back/go forward) 0TAPE Z B (eject) qfA TA PE Z (eject) waz START (record) wf

List of button locations and reference pages

ALPHA BETICAL ORDER

A D E Z

BUTTON DESCRIPTIONS

1 2 3 4

56789

0

qa

qs

qd

qf

e;ea

wlwk

wjwhwgwfwdws

wa

w; qg

qhqjqkql

6HCD-NXM4DThis section is extractedfrom instruction manual.

Remote control

ALBUM + 7ALBUM qaANGLE qkAUDIO qkBAND wgCLEAR wlCLOCK/TIMER SELECT e;CLOCK/TIMER SET e; DISC SKIP wfDISPLAY waDVD DISPLAY whDVD MENU 7DVD SETUP wsDVD TOP MENU qaENTER wj

FM MODE 5FUNCTION +/ 0KARAOKE/MPX qfNumber buttons qdPLAY MODE 4 REPEAT 5SLEEP qhSOUND FIELD +/ wdSUBTITLE qkTUNER MEMORY 3TUNING MODE 4TUNING +/ wkTV CH +/ qgTV/VIDEO eaTV VOL +/ 2VOLUME +/ 8

?/1 (power) 1nN (play) 6X (pause) 6x (stop) 6KEY CONTROL #/29>10 qsTV ?/1 qjO RETURN qlm (rewind) w;M (fast forward) w;SLOW /y w;M/m/ (go forward) wk

ALPHABETICA L ORDER

A E F Z

BUTTON DESCRIPTIONS

O

bB

V

v

+

+

+

+

+

+

+

+

XbB

yy + yy

x

m M. >

O

bB

V

v

+

+

+

+

+

XbB x

m M. >

ws

1

wk

qa

wd

2qg

qh

qf

qs

qd

3

4

5

6

7

8

90

qj

qk

w;

wa

ql

e;

ea

wl

wf

wgwhwj

7HCD-NXM4DSECTION 3

DISASSEMBLY This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

3-2.CASE(Page 8)

3-3.BACK PANEL(Page 8)

3-7.FRONT AMP BOARD, SUR AMP BOARD (Page 11)

3-11. DMB07 BOARD,DVD MECHANISM DECK(CDM81A-DVBU60)(Page 13)

3-10.VIDEO BOARD (Page 13)

3-6.FRONT PANEL (Page 10)

3-9.PANEL BOARD (Page 12)

3-12. TRAY(Page 14)

3-14. BASE UNIT (DVBU60)(Page 15)

3-16. OPTICAL PIC-UP (DBU-3)(Page 16)

3-15. RF BOARD(Page 15)

3-8.TAPE MECHANISM DECK (Page 12)

3-4.DVD SECTION (Page 9)

3-13. MOTOR BOARD,M761 (LD/ST MOTOR),M762 (BU U/D MOTOR)(Page 14)

SET

3-5.MAIN BOARD(Page 10)

8HCD-NXM4D

Note: Follow the disassembly procedure in the numerical order given.

3-2. CASE

3-3. BACK PANEL

1 three screws (CASE 3 TP2)

2 three screws (CASE 3 TP2)

3 two screws (sumitite (B3))

4 two screws (sumitite (B3))

5 screw (sumitite (B3))

6

7 CASE

1 screw (+BVTP 3X8)

2 two screws (+BVTP 3X8)

3 four screws (+BVTP 3X8)

4 two screws (+BVTP 3X8)

5 two screws (+BVTP 3X8)

6 back panel section

7 CNP204

8 connector (CN506)

9HCD-NXM4D

3-4. DVD SECTION

1 CNP2002 CNP202 3 CNP372

6 DVD section

7 connector (CN102)

4 screw (+BVTP 3X8)

5 two screws (sumitite (B3))

10

HCD-NXM4D

3-5. MAIN BOARD

1 two screws (sumitite (B3))

2 connector (CN102)

3 connector (CN103)

4 MAIN board

5 CNP3036 connector (CN108)

7 connector (CN301)

8 connector (CN302)

0 connector (CN101)

qa CNP112

qs CNP110qd CNP109

9 connector (CN102)

3-6. FRONT PANEL

1 two screws (+BVTP 3X8)

2 front panel section

3 connector (CN505)

11

HCD-NXM4D

3-7. FRONT AMP BOARD, SUR AMP BOARD

1 two screws (sumitite (B3))

2 two screws (sumitite (B3))

3 FRONT AMP board

4 connector (CN502)

qa screw (+BVTP 3X8)

qs screw (+BVTP 3X8)qd two screws

(+BVTP 3X8)

qf bracket

qg two screws (+BVTP 3X8)

qh bracket

8 SUR AMP board

5 screw (+BVTP 3X8)

6 two screws (+BVTP 3X8)

7 screw (+BVTP 3X8)

9 connector (CN503)

q; connector (CN507)

12

HCD-NXM4D

3-8. TAPE MECHANISM DECK

3-9. PANEL BOARD

1 four screws (+BVTP 2.6X8)

2 screw (+BVTP 2.6X8)

3 screw (+BVTP 2.6X8)

4 bracket (main)

5 screw (+BVTP 2.6X8)

6 three screws (+BVTP 2.6X8) 7 PANEL board

1

2

3 two screws (+P 2.6X3)

4 two screws (+BVTP 2.6X8)

5 tape mechanism deck

13

HCD-NXM4D

3-10. VIDEO BOARD

3-11. DMB07 BOARD, DVD MECHANISM DECK (CDM81A-DVBU60)

1 CNP1101

2 screw (+BVTP 3X8)

3 screw (+BVTP 3X8)

4 VIDEO board

1 CNP501

2 CNP105 3 CNP107

4 two screws (+BVTP 3X8)

5 screw (+BVTP 3X8)

6 screw (+BVTP 3X8)

7 DMB07 board

8 two screws (+BVTP 3X8)

9 screw (+BVTP 3X8)0 screw

(+BVTP 3X8)

qa screw (+BVTP 3X8)

qs DVD mechanism deck (CDM81A-DVBU60)

14

HCD-NXM4D

3-12. TRAY

1 two screws (+BTP 2.6X8)

2 two screws (+BTP 2.6X8)

3 bracket

4

5 tray

3-13. MOTOR BOARD, M761 (LD/ST MOTOR), M762 (BU U/D MOTOR)

1 screw (+BTP 2.6X8)

2 bracket

3 screw (+BTP 2.6X8)

4 MOTOR board

5 Remove soldering from the two points.

6 M761 (LD/ST MOTOR)

7 Remove soldering from the two points.

8 M762 (BU U/D MOTOR)

15

HCD-NXM4D

3-14. BASE UNIT (DVBU60)

3-15. RF BOARD

1 two floating screws (+PTPWH2.6)

2 base unit (DVBU60)

1 screw (+BTP 2.6X6)

2 screw (+BTP 2.6X6)

4 CNP101

3 RF board

16

HCD-NXM4D

3-16. OPTICAL PICK-UP (DBU-3)

1 screw (+BTP 2.6X8)2 two screws

(+BTP 2.6X8)

3 holder (DBU1) assy

4 step screw

5 step screw

6 step screw

8 optical pick-up (DBU-3)

7 9 insulator

0 insulator

qa insulator

17

HCD-NXM4DSECTION 4TEST MODE

[Change-over of AM Tuner Step between 9 kHz and 10 kHz] A step of AM channels can be changed over between 9 kHz

and 10 kHz.

Procedure:1. Press ?/1 button to turn the set ON.2. Select the function TUNER, and press [TUNER/BAND]

button to select the BAND AM.3. Press ?/1 button to turn the set OFF.

4. Press x button continuously, then press ?/1 button. Theset will POWER on automatically, and the display offluorescent indicator tube changes to AM 9 kHz step or AM10 kHz step, and thus the channel step is changed over.

[Cold Reset] The cold reset clears all data including preset data stored in

the RAM to initial conditions. Execute this mode whenreturning the set to the customer.

Procedure: 1. Press x button continuously, then press [DIMMER]

and ?/1 buttons.

[Switching MD/VIDEO Functions]Procedure:

1. Press the ?/1 button to turn the set ON.2. Press the ?/1 button while holding the VIDEO/SAT button

depressed to toggle between SAT and VIDEO. Theselected mode is displayed.

[Aging Mode]This mode can be used for operation check Tape deck section.

If an error occurred:The aging operation stops and is displayed status.

If no error occurs:The aging operation continues repeatedly

Aging mode in Tape Deck section

Procedure:1. Load the tapes into the decks A and B respectively.2. Press ?/1 button on the set ON3. Select the function TAPE A

4. Press x button continuously, then press X and [TAPE A/B]buttons. and aging mode is started.

5. To exit from the aging mode perform [Cold Reset].

In the aging mode ,the program is executed in the followingsequence.

Step Operation Display1 Rewind the TAPE A TAPE A AG-12 Rewind the TAPE B TAPE B AG-13 Play the TAPE A (t) (2 minute) TAPE A AG-24 FF. (AMS) the TAPE A TAPE A AG-35 Play the TAPE A (T) (2 minute) TAPE A AG-46 Rewind the TAPE A TAPE A AG-57 Play the TAPE B (t) (2 minute) TAPE B AG-28 FF.(AMS) the TAPE B TAPE B AG-39 Play the TAPE B (T) (2 minute) TAPE B AG-410 Rewind the TAPE B TAPE B AG-5

[GC Test Mode] All fluorecent segments and LEDs are tested. Microprocessor virsion. Keyboard and jog check. Display check.

Procedure: 1. To enter the test mode, press x button coutinuously, then

press X and [TUNER/BAND] buttons.2. All segments and LEDs (without STANDBY LED) are turned

on.

3. Press the [TUNING -] button to increment the microprocessorsoftware version.

4. Press the [TUNING -] button to change the indication for themicroprocessor software version.

3. Press the b B button to set the check mode for the entries(KEY, JOG, etc.).

4. Press the X button to display the current VACS level. 7. Press the x button to enter the mode to check the display. If

you press this button repeatedly, the display will changesequentially as the button is pressed.

8. Press x button coutinuously, then press X and [TUNER/BAND]buttons.

[MC Test Mode] (Amplifier SECTION) This mode is used to test the function of the amplifier section.

Procedure:1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press x button coutinuously, then press X and z START buttons.

3. Turn [VOLUME] knob to counter-clockwise, the function ofthe equalizer is set to MIN.

4. Turn [VOLUME] knob to clockwise, the function of theequalizer is set to MAX.

5. Whenever turn [SOUND MODE] knob to clockwise, the displayswitches as follows.

TONE MAX tTONE MIN tTONE FLAT6. Press [DSGX] button to select DBFB ON or OFF.7. To exit from this mode, press ?/1 button to turn the set

OFF.8. Press ?/1 button to turn the set ON.

9. To enter the test mode, press x button coutinuously, then press X and z START buttons.

10. Select SOUND FIELD mode by turn the SOUND MODEknob.

11. Change the speaker output by turn the SOUND SELECT knob.

[MC Test Mode] (Tape section) This mode is used to test the functions of the Tape Section.

Procedure:1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press x button coutinuously, then press X and z START buttons.

3. While holding the [DIMMER] button depressed, turn the ALCON.

4. Press the z START button to start REC (recording).5. While recording, press the [TUNING +] button to perform

automatic rewind and automatic playback (for FF version).Also, press the [TUNING -] button to perform automatic rewindand automatic playback (for FR version).

6. Select the function TAPE A or TAPE B

18

HCD-NXM4D

7. Press the [CD SYNC] button while TAPE A or TAPE Bis selected, to perform AMS check. EDG[ ] is displayed.A number appears inside[ ].

8. To exit from this mode, press ^/1 button to turn the set OFF.

[DVD Ship Mode (LOCK) ] This mode moves the pick-up to the position durable to

vibration. Use this mode when returning the set to the customerafter repair.

Procedure: 1. Press ^/1 button to turn the set ON.

2. Select the function DVD. 3. Press x button and [DVD] button simultaneously.

4. The STANDBY display blinks instantaneously, and the DVDship mode is set.

5. To fluorescent indicator tube displays LOCK.

[DVD Ship (LOCK) & COLD RESET MODE]Procedure:

1. Press ^/1 button to turn the set ON.2. Select the function DVD.

3 Press x button continuously, then press X and VIDEO/SATbuttons.

4. The STANDBY display blinks instantaneously and DVDship mode is set.

5. To fluorescent indicator tube displays LOCK and the set isreset.

[DVD power -manage function] This mode let you switch on or off power supply to the BU

during TUNER function. When DVD POWER is set to OFF, the power supply to the

BU is cut off during TUNER function. It will increase thetime taken to access DVD when function change from TUNERto DVD but it will improve tuner reception.

When DVD POWER is set to ON, the power supply to theBU is not cut off during TUNER function. It will reduce thetime taken to access DVD when function change from TUNERto DVD but it will decrease tuner reception performance.

Procedure:

1. Press ^/1 button to the set ON.2. Select the function DVD.

3. Press ^/1 button to turn the set OFF.

4. Press x button continuously, then press ^ /1 button.The setwill POWER on automatically, and the display of fluorescentindicator tube changes DVD POWER OFF or DVDPOWER ON.

5. Press ^/1 button to turn the set OFF.

[DISC Tray Lock]

Procedure:

1. Press ^/1 button to the set ON.2. Select the function DVD.

3. Press x button continuously, then press DVD Z button for5 seconds.And the displays of fluorescent indicator tube changes toLOCKED or UNIOCKED.

4. Press ^/1 button to turn the set OFF.

[DVD Repeat 5 Times Limit Release Mode]

Procedure: 1. Press ^/1 button to turn the set ON.

2. Select the function DVD. 3. Press x button continuously, then press [CD SYNC]

button.4. The message LIMIT OFF is displayed.

5. Press ^/1 button to the set OFF.

19

HCD-NXM4D

[GENERAL DESCRIPTION]The Test Mode allows you to make diagnosis and adjustment easilyusing the remote commander and monitor TV. The instructions,diagnostic results, etc. are given on the on-screen display (OSD).

[STARTING TEST MODE]1. Press the +/1 button to turn the power on, and set the function

to DVD.2. While pressing the x and Z button, turn the [VOLUME]

knob clockwise to enter the test mode.3. It displays SERVICE IN on the liquid crystal display, and

displays the Test Mode Menu on the monitor screen as follows.(At the bottom of the menu screen, the model name andrevision number are displayed)

Test Mode Menu

0. Syscon Diagnosis1. Drive Auto Adjustment2. Drive Manual Operation3. Mecha Aging4. Emergency History5. Mecha Error History6. Version Information7. Video Level Adjustment

Exit: POWER KeyModel :DHC-NXMxxRevision :x.xx

4. To execute each function, select the desired menu and pressits number on the remote commander.

5. To release from test mode, press the +/1 button and turn thepower off.

[OPERATING TEST MODE]0. SYSCON DIAGNOSISThe same contents as board detail check by serial interface can bechecked from the remote commander operation.On the Test Mode Menu screen, press [10/0] key on the remotecommander, and the following Check Menu will be displayed.

### Syscon Diagnosis ###

Check Menu0. Quit1. All2. Version3. EEPROM4. GPIO5. SD Bus6. Video

0-0. QuitQuit the Syscon Diagnosis and return to the Test Mode Menu.

0-1. All (All items continuous check)This menu checks all diagnostic items continuously. Normally, allitems are checked successively one after another automaticallyunless an error is found, but at a certain item that requires judgmentthrough a visual check to the result, the following screen is displayedfor the key entry.

Example display

### Syscon Diagnosis ###

Diag All CheckNo.2 Version

2-3. ROM Check SumCheck Sum = xxxx

Press NEXT Key to ContinuePress PREV Key to Repeat

For the ROM Check, the check sum calculated by the Syscon isoutput, and therefore you must compare it with the specified valuefor confirmation.Following the message, press the [NEXT ] button to go to thenext item, or press the [ PREV] button to repeat the sameoperation again.To quit the diagnosis and return to Check Menu screen, press the[RETURN] key on the remote commander to display Check Menu.

Error occurredIf an error occurred, the diagnosis is suspended and error is displayed.Press the [RETURN] key on the remote commander to quit thediagnosis, or press the [ PREV] button to repeat the same checkwhere an error occurred, or press the [NEXT ] button to continuethe check from the item next to faulty item.

General Description of Checking MethodSelecting 2 and subsequent items calls the submenu screen of eachitem. And selecting 2 and subsequent items executes respectivemenus and outputs the results.For the contents of each submenu, see Check Items List as below.

Check Items List:0-2. Version

0-2-1. All0-2-2. Revision0-2-3. ROM Check Sum0-2-4. Model Type0-2-5. Region

0-3. EEPROM Check0-3-1. Sampling Check0-3-2. Detail Check

0-4. GP I/O Check0-5. SD Bus Check0-6. Video Check

0-2. Version0-2-2. Revision

The revision number of ROM (IC206) that the programfor the DVD system processor (IC207) is stored.

0-2-3. ROM Check SumCheck sum is calculated.(4 digits hexadecimal number)

0-2-4. Model TypeModel name is displayed. (DHC-NXMXX)

>

.

>

.

DVD OSD Test Mode

20

HCD-NXM4D

0-2-5. RegionModel destination code is displayed. (2 digits number)

0-3. EEPROM Check0-3-1. Sampling Check

EEPROM check at every 64 words.It compares read data with write data of each address.When there are discrepancies between two data, it displayserror.

0-3-2. Detail CheckEEPROM check at every 1 word.It compares read data with write data of each address.When there are discrepancies between two data, it displayserror.

0-4. GP I/O CheckPull up/down setting check of the DVD system processor (IC207)pin 150, 151 and 154 (for clock setting port).

0-5. SD Bus CheckSD bus data check between DVD decoder (IC701) and D-RAM(IC706).

0-6. Video CheckOutput the color bars for video level adjustment.

1. DRIVE AUTO ADJUSTMENTOn the Test Mode Menu screen, press the [1] key on the remotecommander, and the Adjustment Menu will be displayed.

Use DVD reference disc unless othermise indicated.[DVD reference disc]

LUV-P01 (4-999-032-01) (CD)TDV-540C (J-2501-235-A) (DVD-DL) TDV-520CSO (J-2501-236-A) (DVD-SL)

## Drive Auto Adjustment ##Adjustment Menu

0. ALL 1. DVD-SL 2. CD 3. DVD-DL

Exit: RETURN

Normally, [10/0] is selected to adjust DVD (single layer), CD andDVD (dual layer) in this order. But, individual items can be adjustedfor the case where adjustment is suspended due to an error. In thismode, the adjustment can be made easily through the operationfollowing the message displayed on the screen.The disc used for adjustment must be the one specified foradjustment.

1-0. ALLPress the [10/0] key on the remote commander, and the servo setdata in EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CDdisc and 3. DVD-DL disc are adjusted in this order.Each time one disc was adjusted, it is ejected. Replace it with thespecified disc following the message. You can finish the adjustmentby pressing the [RETURN] button on the remote commander.

Note: During adjustment of each disc, the measurement for disc type judg-ment is made. As automatic adjustment does not judge the disctype unlike conventional models, take care not to insert wrong typediscs. Also, do not give a shock during adjustment.

1-1. DVD-SL (single layer)Press the [1] key on the remote commander and insert a DVD singlelayer disc following the message. Then the adjustment will be madethrough the steps below, then adjusted values will be written to theEEPROM.

DVD Single Layer Disc Adjustment Steps:1. Sled reset2. Disc check memory SL3. Wait 300 msec4. Set disc type SL5. LD on6. Spindle start7. Wait 1 sec8. Focus servo on 09. Auto track offset adjust10. CLVA on11. Wait 500 msec12. Tracking on13. Wait 1 sec14. Sled on15. Check CLV on16. Auto focus offset adjust17. Auto focus gain adjust18. Auto focus offset adjust19. EQ boost adjust20. Auto track gain adjust21. All servo stop22. EEP copy loop filter offset

1-2. CDPress the [2] key on the remote commander and insert a CD discfollowing the message. Then the adjustment will be made throughthe steps below, then adjusted values will be written to the EEPROM.

CD Adjustment Steps1. Sled tilt rest2. Disc check memory CD3. Wait 500 msec4. Set disc type CD5. LD on6. Spindle start7. Wait 500 msec8. Focus servo on 09. Auto track offset adjust10. CLVA on11. Wait 500 msec12. Tracking on13. (TC display start)14. Wait 1 sec15. Sled ON16. Check CLV on17. Auto focus offset adjust18. Auto focus gain adjust19. Auto focus offset adjust20. EQ boost adjust21. Auto track gain adjust22. All servo stop

21

HCD-NXM4D

In using the manual operation menu, take care of the followingpoints. These commands do not provide protection, thus requiringcorrect operation. The sector address or time code field is displayedwhen a disc is loaded.

Note:1. Set correctly the disc type to be used on the Disc Type

screen.

2. In case of an alarm, immediately press the x button tostop the servo operation, and press the +/1 button toturn the power off.

Basic operation:(controllable from front panel or remote commander) +/1 : Power OFF (release the Test Mode) x : Servo stop Z : Stop and eject/Loading[RETURN] : Return to Operation Menu or Test

Mode Menu[ PREV], [NEXT ] : Transition between sub modes of menu[1] to [9], [10/0] : Selection of menu itemsCursor o / O : Increase/Decrease in manually

adjusted value

2-1. Disc Type

Disc Type

Disc Type Select

1. Disc Type Auto Check 2. Set Disc Type DVD 3. Set Disc Type CD 4. Set Disc Type Hybrid

Exit: RETURN

2-1-1. Disc Type Auto Check1) Press the [1] key on the remote commander to display the Disc

Type Auto Check screen.2) Insert a disc and press the [ENTER] key on the remote

commander.3) It judges the type of inserted disc automatically and displays

the disc type and so on as below.

Disc Type Auto Check

Disc Type xx Layer xx Mirr Time xx Mirr Count xx FZC Count xx PI Reference xx PI Peak xx

ENTER.Execute

Exit: RETURN

Disc Type : CD, DVD or Hybrid (SACD)Layer : SINGLE, DUAL or HYBRIDMirr Time : Mirror time of between disc surface and record

surface when disc type judgment. (hexadecimal number)

1-3. DVD-DL (dual layer)Press the [3] key on the remote commander and insert a DVD duallayer disc following the message. Then the adjustment will be madethrough the steps below, then adjusted values will be written to theEEPROM.

DVD Dual Layer Disc Adjustment Steps:1. Sled tilt reset2. Disc check memory DL3. Wait 500 msec4. Set disc type DL5. LD on6. Spindle start7. Wait 1 sec

Layer 1 Adjust8. Focus servo on 09. Auto track offset adjust10. CLVA on11. Wait 500 msec12. Tracking on13. Wait 500 msec14. Sled on15. Check CLV lock16. Auto loop filter offset adjust, Auto focus adjust17. Auto focus gain adjust18. Auto focus offset adjust19. EQ boost adjust20. Auto loop filter offset adjust21. Auto Track Gain Adjust

Layer 0 Adjust22. Focus jump (L1 t L0)23. Auto track offset adjust L024. CLVA on25. Wait 500 msec26. Tracking on27. Wait 500 msec28. Sled on29. Check CLV lock30. Auto Focus Adjust31. Auto focus gain adjust32. Auto focus offset adjust33. EQ boost adjust34. Auto track gain adjust35. All servo stop

2. DRIVE MANUAL OPERATIONNote: This mode is used for design, and not used in service fundamen-

tally.

On the Test Mode Menu screen, press the [2] key on the remotecommander, and the Operation Menu will be displayed. For themanual operation, each servo on/off control and adjustment can beexecuted manually.

## Drive Manual Operation ##Operation Menu

1. Disc Type 2. Servo Control 3. Track/Layer Jump 4. Non EEPROM Write Adjust 5. EEPROM Write Adjust 6. Memory Check 7. Disc Check Memory 8. Error Rate Display 9. SACD Water Mark

Exit: RETURN

>.

22

HCD-NXM4D

Mirr Count : The number of times which mirror counts between disc surface and record surface when disc type judging.

FZC Count : The number of times which focus zero cross points of each layer when lens down.

PI Reference : The average of PI reference voltage. (hexadecimal number)

PI Peak : PI peak level voltage. It performs only when disc type judgment is successful. (hexadecimal number)

2-1-2. Disc Type DVDIt sets up so that it may judge as a disc type of specification of thedisc with which the set was inserted.

[1]: DVD single layer disc (12 cm)[2]: DVD dual layer disc (0 layer, 12 cm)[3]: DVD dual layer disc (1 layer, 12 cm)[4]: DVD-RW disc (12 cm)[5]: DVD single layer disc (8 cm)[6]: DVD dual layer disc (0 layer, 8 cm)[7]: DVD dual layer disc (1 layer, 8 cm)[8]: DVD-RW disc (8 cm)

2-1-3. Disc Type CDIt sets up so that it may judge as a disc type of specification of thedisc with which the set was inserted.

[1]: CD disc (normal speed, 12 cm)[2]: CD disc (double speed, 12 cm)[3]: CD disc (normal speed, 8 cm)[4]: CD disc (double speed, 8 cm)[5]: CD-RW disc (normal speed, 12 cm)[6]: CD-RW disc (double speed, 12 cm)[7]: CD-RW disc (normal speed, 8 cm)[8]: CD-RW disc (double speed, 8 cm)

2-1-4. Disc Type HybridIt sets up so that it may judge as a disc type of specification of thedisc with which the set was inserted.

[1]: SACD Hybrid disc (SACD layer, 12 cm)[2]: SACD Hybrid disc (CD layer, normal speed, 12 cm)[3]: SACD Hybrid disc (CD layer, double speed, 12 cm)[4]: SACD Hybrid disc (SACD layer, 8 cm)[5]: SACD Hybrid disc (CD layer, normal speed, 8 cm)[6]: SACD Hybrid disc (CD layer, double speed, 8 cm)

2-2. Servo ControlNote: Be sure to perform the disc type setup before performing this item.

Servo Control 1.LD off R.Sled FWD 2.Focus off L.Sled REV 3.SPDL off U.Sled Reset 4.CLVA off D.Sled Limit 5.Trk. off 6.Sled off 7.Fcs.Srch off

0.All Servo Off

Exit: RETURN

On this screen, the servo on/off control necessary for replay isexecuted. Normally, turn on each servo from 1 sequentially andwhen CLVA is turned on, the usual trace mode becomes active. Inthe trace mode, DVD sector address or CD time code is displayed.This is not displayed where the spindle is not locked.The spindle could run overriding the control if the spindle system isfaulty or RF is not present. In such a case, do not operate CLVA.

[1] LD : Turn on/off the laser.[2] Focus : Search the focus and turn on the focus.[3] SPDL : Turn on/off the spindle.[4] CLVA : Turn on/off normal servo of spindle servo.[5] Trk. : Turn on/off the tracking servo.[6] Sled : Turn on/off the sled servo.[7] FCS. Srch : Turn on/off the focus search.[10/1] : All servo off.[R] Sled FWD (right cursor) : Move the sled forward.[L] Sled REV (left cursor) : Move the sled reverse.[U] Sled FWD (up cursor) : Reset the sled.[D] Sled REV (down cursor) : Limit in the sled.

2-3. Track/Layer Jump

Track/Layer Jump 1. 1Tj FWD 2. 1Tj REV 3.500Tj Fine FWD 4.500Tj Fine REV 5.10kTj Dirc FWD 6.10kTj Dirc REV 7.20kTj Dirc FWD 8.20kTj Dirc REV

0. All Servo Off

Exit: RETURN

On this screen, track jump, etc. can be performed. Only for the DVDdual layer disc, the focus jump and layer jump are displayed in theright field

[1] 1Tj FWD : 1 track jump forward.[2] 1Tj REV : 1 track jump reverse.[3] 500Tj FWD : 500 track jump (fine search)forward.[4] 500Tj REV : 500 track jump (fine search) reverse.[5] 10kTj FWD : 10k track jump (direct search) forward.[6] 10kTj REV : 10k track jump (direct search) reverse.[7] 20kTj FWD : 20k track jump (direct search) forward.[8] 20kTj REV : 20k track jump (direct search) reverse.[10/0] : All servo off.

2-4. Non EEPROM Write Adjust

Non EEPROM Write Adjust

1. Focus Offset 2. Focus Gain 3. Trk. Offset Coarse 4. Trk. Offset Fine 5. Trk. Gain 6. EQ Boost

0.All Servo Off

Exit: RETURN

On this screen, each item can be adjusted manually. Select the desirednumber [1] to [10/0] from the remote commander, and current setting forthe selected item will be displayed, then increase or decrease numericvalue with the O key or o key. If CLV has been applied, the jitter isdisplayed for reference for the adjustment.

23

HCD-NXM4D

[1] Focus Offset : Adjusts focus offset.[2] Focus Gain : Adjusts focus gain.[3] TRK. Offset coares :

Adjusts tracking offset of the RF amp (IC001) side.

[4] TRK. Offset fine : Adjusts tracking offset of the DSP (IC401) side.

[5] TRK. Gain : Adjusts track gain.[6] EQ Boost : Adjusts amount of boost of equalizer.[10/0] : All servo off.

2-5. EEPROM Write Adjust

EEPROM Write Adjust

1. Focus Offset 2. Focus Gain 3. Trk. Offset Coarse 4. 5. Trk. Gain 6. EQ Boost

0.All Servo Off

Exit: RETURN

On this screen, each item can be adjusted automatically. Select thedesired number [1] to [10/0] from the remote commander, andselected item is adjusted automatically.

[1] Focus Offset : Adjusts focus offset.[2] Focus Gain : Adjusts focus gain.[3] TRK. Offset coarse :

Adjusts tracking offset of the RF amp (IC001) side.

[5] TRK. Gain : Adjusts track gain.[6] EQ Boost : Adjusts amount of boost of equalizer.[10/0] : All servo off.

2-6. Memory CheckDisplay images are shown as follows, and all two screens are ableto switch by the O key (UP) or o key (DW).

EEPROM Data 1/2 CD SL L0 L1Focus Gain xx xx xx xxTrk. Gain xx xx xx xxFocus Offset xx xx xx xxTrk. Offset xx xx xx xxEQ. Boost xx xx xx xxPI Level xx xx -- --Fcs. Balance -- xx -- --Jitter xx xx xx xxMirror Time xx xx xx --FE Level -- xx -- --Traverse Lv1. -- xx -- --Next:DW Default:CLR Exit:RET

EEPROM Data 2/2 CDRW DVDRWFocus Gain xx xxTrk. Gain xx xxFocus Offset xx xxTrk. Offset xx xxEQ. Boost xx xx

Prev:UP Default:CLR Exit:RET

On this screen, current servo adjusted data stored in the EEPROMare displayed. The adjusted data are initialized by pressing the[CLEAR] key, but be careful that they are not recoverable afterinitialization.Before clearing the adjusted data, make a note of the set data. Thisscreen will also appear if [0]-All is selected in the Drive AutoAdjustment. In this case, default setting cannot be made.

2-7. Disc Check Memory

Disc Check Memory

1. SL Disc check 2. CD Disc check 3. DL Disc check

Exit: RETURN

On this screen, measure the mirror time of chucked disc, and writeto the EEPROM.

2-8. Error Rate Display

Error Rate DisplayUC CR Address

PI1 Err Now xx xxxx xxxxxxxxMax xx xxxx xxxxxxxxAvg xx xxxx

PI2 Err Now xx xxxx xxxxxxxxMax xx xxxx xxxxxxxxAvg xx xxxx

PO Err Now xx xxxx xxxxxxxxMax xx xxxx xxxxxxxxAvg xx xxxx

START: ENTER STOP: RETURN

On this screen, measure and display the error rate.

UC : Incorrect valueCR : Correct valueAdd : Address

24

HCD-NXM4D

2-9. SACD Water Mark Check (Not used)

SACD Water Mark Check

PSP AMP PSN

Adjust Error Failed Start: ENTER Stop: RETURN

On this screen, measure the PSP AMP value and PSN value of SACDwater mark.

3. MECHA AGINGOn the Test Mode Menu screen, selecting [3] executes the aging ofthe mechanism deck.

## Aging Test MENU ##

** Pls use over 40min. CD **Operation Menu

1. Open/Close Test

Exit: RETURN

1) On the Aging Test MENU screen, press the [1] key on theremote commander to display the Open/Close Test screen.

2) Insert discs and press the [ENTER] key on the remotecommander.

3) Is starts the aging.During aging, the disc number, operating status and repeatcycle are displayed. Aging can be aborted at any time bypressing the [RETURN] key. After the operation is stopped,press the [RETURN] key to return to the Aging Test MENU.

4. EMERGENCY HISTORYOn the Test Mode Menu screen, selecting [4] displays theinformation such as servo emergency history.The history information from last 1 up to 10 can be scrolled withthe O key or o key. Also, specific information can be displayedby directly entering that number with ten keys.

### EMG. History ###

Laser Hours CD xxxxhxxmDVD xxxxhxxm

a. bb xx xx xx xx xx xx xxxx xx xx xx xx xx xx xx

a. bb xx xx xx xx xx xx xxxx xx xx xx xx xx xx xx

Select:1-9 Scroll:UP/DOWN (1.Latest EMG.) Exit: RETURN

xxxxhxxm : The laser on total hours. Data below minutes are omitted.

a. : Error number.bb : Error code.xx : Not used.

Clearing History InformationClearing laser hours:

Press the [DVD DISPLAY] and [CLEAR] keys in this order.Then both CD and DVD data are cleared.

Clearing emergency history:Press the [DVD TOP MENU] and [CLEAR] keys in this order.

Initializing set up data:Press [DVD MENU] and [CLEAR] keys in this order.The data have been initialized when EEPROM InitializeFinished message is displayed. Code list of Emergency History

10 : Communication to RF AMP (IC001) failed.11 : Each servo for focus, tracking, and spindle is unlocked.12 : Check sum error of EEPROM (IC204).14 : Communication to servo DSP (IC509) failed, or servo

DSP (IC509) is faulty.15 : Communication to DVD decoder (IC701) failed, or DVD

decoder (IC701) is faulty.16 : Communication to DSD decoder (IC801) failed, or DSD

decoder (IC801) is faulty. (Not used)20 : Initialization of sled servo failed. It is not placed in the

initial position.23 : Sled servo operation error.24 : Made a request to move the sled servo to wrong position.30 : Tracking balance adjustment error.31 : Tracking gain adjustment error.33 : Focus bias adjustment error.34 : Focus gain adjustment error.35 : Equalizer adjustment error.40 : Focus servo does not operate.41 : With a DVD dual layer disc, focus jump failed.50 : CLV (spindle) servo does not operate.51 : Spindle does not stop.60 : Made a request to seek nonexistent address.61 : Seek error of retry more than regulated times.70 : Control data could not be read.80 : Disc reading failed.

5. MECHA ERROR HISTORYOn the Test Mode Menu screen, selecting [5] displays theinformation of mechanism deck error history.The history information from last 1 up to 8 can be scrolled withthe O key or o key.

### Mecha Error History ###

1. xx xx xx xx xx xx xx xx 2. xx xx xx xx xx xx xx xx 3. xx xx xx xx xx xx xx xx 4. xx xx xx xx xx xx xx xx 5. xx xx xx xx xx xx xx xx 6. xx xx xx xx xx xx xx xx 7. xx xx xx xx xx xx xx xx 8. xx xx xx xx xx xx xx xx

Scroll:UP/DOWN(1.Latest Err.) Exit: RETURN

25

HCD-NXM4D

aa: Initialization is completed or not.FF : Complete.

other number : Not complete.bb: Operating status of mechanism deck at an error occurred.

(lod sq jcp)00 : Initializing.10 to 15 : Open operating.16 to 19 : Kicking cause open failed.1A to 1F : Open operating.20 to 27 : Complete the open operation.28 : No disc and complete the open operation.29 to 2F : Complete the open operation.30 to 3F : Close requesting.40 to 4F : Open requesting.50 to 5F : Close operating.60 to 6F : Complete the chucking operation.80 to 8F : Complete the release operation.

(BU is home position)90 to 9F : BU down operating.A0 to AF : Opening/closing the shutter. Or stationary state

in open/close the shutter is enablement.B0 to BF : BU up requesting.C0 to CF : BU down requesting.D0 to DF : BU upping.E0 to EF : No disc checking in disc loading.

cc : Operating status of table at an error occurred. (tbl sq jcp) 13 : The rotation stop position determination error of a table 11 to 12 : The loading position determination error of a table

dd: Operating status of mechanism deck at an error occurred. (lod OP jcp)

00 : Complete the operation.10 to 1F : Open operating.20 to 2F : Close operating.30 to 3F : Release operating.60 to 6F : Chucking operating.70 to 7F : Kicking operating.80 to 8F : Returning the BU to home position. (after kicking)

ee : The status of table operation. (n is unfixed) (tbl op jcp) 1n : Rotating in the direction of a forward. 2n : Rotating in the direction of a reverse.

6. VERSION INFORMATIONOn the Test Mode Menu screen, selecting [6] displays the ROMversion and region code.The parenthesized hexadecimal number in version field is checksumvalue of ROM.

## Version Information ##

IF con. Ver.x. xx

SYScon. Ver.x. xx (xxxx)Model DHC-NXMXXRegion 0xConfig xxxxxxxx

xxxxxxxx Front End Ver.x.xx

Exit: RETURN

IF con. : The version of system controller (IC501).SYScon. : The version of DVD system processor (IC207).Front End : The version of mechanism controller (IC901).

7. VIDEO LEVEL ADJUSTMENT

On the Test Mode Menu screen, selecting [7] displays color bars forvideo level adjustment. During display of color bars, OSD disappearsbut the menu screen will be restored if pressing the [RETURN] key.

26

HCD-NXM4D

SECTION 5MECHANICAL ADJUSTMENTS

SECTION 6ELECTRICAL ADJUSTMENTS

Precaution1. Clean the following parts with a denatured alcohol-moistened

swab:record/playback heads pinch rollerserase head rubber beltscapstan idlers

2. Demagnetize the record/playback head with a headdemagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to

the parts adjusted.5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

Torque Measurement

3.06 N m to 6.96 N mFWD CQ-102C 31 to 71 g cm

(0.43 0.98 oz inch)

FWD0.19 N m to 0.58 N m

back tensionCQ-102C 2 to 6 g cm

(0.02 0.08 oz inch) 3.06 N m to 6.96 N m

REV CQ-102RC 31 to 71 g cm(0.43 0.98 oz inch)

0.19 N m to 0.58 N mREVCQ-102RC 2 to 6 g cmback tension

(0.02 0.08 oz inch)6.96 N m to 14.02 N m

FF/REW CQ-201B 71 to 143 g cm(0.98 1.99 oz inch)

9.80 N mFWD tension CQ-403A 100 g or more

(3.53 oz or more)9.80 N m

REV tension CQ-403R 100 g or more(3.53 oz or more)

Mode Torque meter Meter reading

0 dB=0.775 VDECK SECTION

1. Demagnetize the record/playback head with a headdemagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to the

parts adjust.4. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.5. The adjustments should be performed in the order given in

this service manual. (As a general rule, playback circuitadjustment should be completed before performing recordingcircuit adjustment.)

6. The adjustments should be performed for both L-CH and R-CH.

7. Switches and controls should be set as follows unless otherwisespecified.

Test Tape

RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT

DECK A DECK B

Note: Perform this adjustments for both decksProcedure:

1. Mode: Playback

Tape Signal Used forP-4-A100 10 kHz, 10 dB Azimuth Adjustment

set

MAIN boardCN304Pin 1 (L-CH)Pin 3 (R-CH)

MAIN boardCN304Pin 2 (GND)

+

level meter

test tapeP-4-A100(10 kHz, 10 dB)

27

HCD-NXM4D

2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1dB of peak.

3. Mode: Playback

4. After the adjustments, apply suitable locking compound tothe pats adjusted.

Adjustment Location: Playback Head (Deck A).Record/Playback/Erase Head (Deck B).

Screwposition

L-CHpeak

within1dB

Outputlevel

L-CHpeak

R-CHpeak

within1dB

Screwposition

R-CHpeak

MAINboardCN301set

test tapeP-4-A100(10 kHz, 10 dB)

pin 3

oscilloscopeL-CH

R-CH

V H

waveform of oscilloscope

in phase 45 90 135 180good wrong

pin 2pin 1

L

R

forwardreverse

VIDEO SECTION

Note :1. DBM07 board is basically designed to operate without adjust-

ment. Therefore, check each item in order given.2. Use DVD reference disc unless othermise indicated.

[DVD reference disc] LUV-P01 (4-999-032-01) (CD)TDV-540C (J-2501-235-A) (DVD-DL) TDV-520CSO (J-2501-236-A) (DVD-SL)

3. Use an oscilloscope with more than 10M impedance.4. Clean the object lens by an applicator with neutral detergent

when the signal level is low than specified value with thefollowing checks.

Video Level Check (DBM07 BOARD)PurposeThis adjustment is made to satisfy the NTSC standard, and if notadjusted correctly, the brightness will be too large or small.

Procedure:1. Connect oscilloscope to VIDEO output.2. Load a DVD reference disc playback.3. Check the video signal level is 1.000.05Vp-p.

J1102VIDEO OUTPUT

75

Oscilloscope

set

1.00 0.05 Vp-p

(WHITE 100%)

RE-ADJUSTMENT OF THE SERVO CIRUITThe re-adjustment of the servo circuit is necessary whenthe part which relates to the servo circuit is replaced.Referring to 1. DRIVE AUTO ADJUSTMENT (see page 20).Choose ALL and do the re-adjustment of each item ofDVD-SL, CD and DVD-DL.

THE PART THAT THE RE-ADJUSTMENT OF THE SERVO CIRCUIT IS NECESSARY.

1. Optical pick-up2. RF AMP (IC001)3. DSP IC (IC509)4. Motor driver IC (IC501)5. EEPROM (IC204)

28

HCD-NXM4D

RFMON Level CheckPerform a RFMON level check before exchanging optical pick-up.Connection:

RFMON signal waveform

Standard value

Test Disc RFMON levelStandard Value

DVD TDV-520CSO 1.090.2Vp-p(J-2501-236-A)CD LUV-P01 1.050.2Vp-p(4-999-032-01)

VOLT/DIV: 200 mVTIME/DIV: 500 ns

RFMON level

RR

C042R013

RC034

C036C035

C033C012

R031

C051

IC001

32

33 16

17

+

JL005(RFMON)

oscilloscope

RF board (side B)

JL005(RFMON)

VC

29

HCD-NXM4D

SECTION 7DIAGRAMS

7-1. CIRCUIT BOARD LOCATION

FRONT AMP boardHP board

VOL board

DISC SW board

PANEL board

MAIN board

switching regulator

SUR AMP board

RF boardENCODER board

SENSOR board

MOTOR board

SW(1) board

SW(2) board

RELAY board

VIDEO board

DMB07 board

30

HCD-NXM4D

For schematic diagrams.Note: All capacitors are in F unless otherwise noted. (p: pF)

50 WV or less are not indicated except for electrolyticsand tantalums.

All resistors are in and 1/4

W or less unless otherwisespecified.

f : internal component. 2 : nonflammable resistor. 5 : fusible resistor.

C : panel designation. A : B+ Line. B : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground

under no-signal conditions.RF, DMB07, VIDEO boards section

no mark: DVD PLAYOther board section

no mark: TUNER (FM/AM)( ) : DVD PLAY< >: TAPE REC[ ]: TAPE PLAY

* : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M).

Voltage variations may be noted due to normal produc-tion tolerances.

Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.

Circled numbers refer to waveforms. Signal path.F : TUNER (FM/AM)E : TAPE PLAY (DECK A)d : TAPE PLAY (DECK B)G : RECORDJ : DVD PLAYN : MIC INPUT

AbbreviationE2 : 120V AC Area in E modelE3 : 240V AC Area in E modelEA : Saudi Arabia mdoelE15 : Iran modelSP : Shingapore modelMY : Malaysia modelAUS : Australian mdoelTH : Thai model

Note: The components identified by mark 0 or dotted linewith mark ! are critical for safety.Replace only with part number specified.

(The other layers' patterns are not indicated.)

Indication of transistor.

AbbreviationE2 : 120V AC Area in E modelE3 : 240V AC Area in E modelEA : Saudi Arabia mdoelE15 : Iran modelSP : Shingapore modelMY : Malaysia modelAUS : Australian mdoelTH : Thai model

Caution:Parts face side: Parts on the parts face side seen from(Side A) the parts face are indicated.Pattern face side: Parts on the pattern face side seen from(Side B) the pattern face are indicated.

C

BThese are omitted.

EQ

B

These are omitted.

C E

Q

B

These are omitted.

C E

Q

Note on Printed Wiring Boards: X : parts extracted from the component side. : Pattern from the side which enables seeing.

HCD-NXM4D

3131HCD-NXM4D

7-2. BLOCK DIAGRAM DVD DSP (1/2) SECTION

R-ch is omitted due to same as L-ch. Signal pathJ : DVDF : AUDIO

OPTICAL PICK-UPBLOCK(DBU-3)

A +5V

Q001

RF1

2

4

5

RF AC

TXD

RXD

CN901(RS232C)

IC001DVD/CD RF AMP

VC

CD A16CD B15CD C

SDEN

PI/CE

DATA RFCLK RF

MIRR

FFDR

AVC

FRDR

TFDRTRDR

SPIN

1413171820

1

21

CD D

A12B11C10

9 D

CD FCD E

DVD LD

A23B24C25

6 D2

DVDLD

PD

FCS+FCS-

TRK+TRK-

SW

DVDRFP

INLIM

IC501MOTOR/COIL DRIVE

36DO1-DO1+

DO2+

DO2-

DO3+DO3-DO4+DO4-

37

3435

32

19202122

30

DO5+27

IN6-46

IN6+47

29

DO5-28

31

481

40

34

10

7

13

3132

44

SLEDMOTOR

SPINDLEMOTOR

IN1+

IN1-

IN2+

IN2-

IN3-

IN4-

39POWERSAVE

IN5-

AVC AVC

45OUT6

SPO

SLED

_B

62

FG

7

FCS_

JMP_

1

8

FCS_

JMP_

2

61 8180

SLED RT

D

TXD

26

SCOR

CDSP

2

6

MNT

1

22

INIT

0_DV

D

23

INIT

1_DV

D

84XW

R85

XRD

12XC

S_DV

D25

XRST

_188

2

14-21D0-D7A8

89-96A0-A7

52

SQSO

54

SQCK

SLED

_A

TRDRTFDR

3334 FRDR

FFDR

IC901(1/2)MECHANISMCONTROLLER

57RFAC

321

4

MEVOIC003

OP AMP

31MIN

40FE

VC

VCC

BADCE

F

RF

DSP

GND

39TE

42

36

MNTR

VI25

39 FE

41 TE40 SE

434238

RFDCCEVC

RFIN

48SDEN47SDATA46SCLK

2

SDEN

40 XTALX901

20MHz 41 EXTAL

83

SDAT

A_RF

82

SDCL

K_RF

27MIRR

26LDON LDON

HDB-DATA

ANALDG-IN-L

INT/EXT

BCKLRCKXCK

XSRQ

XSAK#

SDEF#

XDCK#

I/O0-I/O15

768FS-2768FS-1

IC70616M DRAM

A0-A11

IC701DVD DECODER

IC509CD DECODERSERVO DSP

MDB0-MDB9,MDBA-MDZBF

MA0-MA9/MNT0

XMWR WEXRAS RASXMOE OEXCAS

MA11/MNT2

D0-D7 A0-A7

UCASLCAS

ANALDG-IN-R

SLEDA+SLEDA-SLEDB+SLEDB-

SPDL+

SPDL-

12

16

Q901

LDDRIVE

22 CD LD

23 DVDPD24 CDPD

CDLDLD GND

M

M

66

PI

50 RFAC

65LRCK66PCMD67BCK

71XTAI

69XTSL

76

SQSO

77

SQCK

79SBSO80EXCK

4

DATA

5

XLAT

6

CLOK

7

SENS

8

49 27 50 9 72

SCLK

DATA

_CD

LAT_

CDCL

OK_C

DSE

NS_C

DSC

LK_C

D

71

GFS_

CD

30

COUT

_CD

74

FOK_

CD

75

LOCK

_CD

31

INLI

M

10WFCK

13

GFS

14C2PO15SCOR17

45WDCK

21DFCT

19

COUT

22

FOK

24

LOCK

768F

S

25MDP

26

SSTP

MUT

E12

MUT

E34

MUT

E5TS

D-M

29576

SFDR30 SRDR

28

LDON

20 MIRR

76

LDSE

L

73

TSD-

M

63

SP_O

N

60

MUT

E_2D

43

135

164

MDIN2137

MDIN1138

MDSOUT142

117

LRCK163

65

TE

67

FE

29

MIR

R

Q002LD

DRIVE

IC503AMP

5 SDASCLWP

SDA_EEPSCL_EEPWP_EEP 7

65

99100

IC903EEPROM

IC703(1/2)AMP

IC703(2/2)AMP

MDAT160

APE0109 GFS 107

170

BCLK158SBIN148EXCK147

3

MUT

E

59

MUT

E_CD

2XR

ST

98

XDRS

T

WFCK151C2PO155SCOR150GSCORDFCT

146

46HDRQ

XSAK

HDB0

HDB7

HDB8

XDCK

XSAK#

SDEF#

XDCK#

AV7AV0AV1AV2AV6

XSAK#SDEF#XDCK#

INVERTER

48XHWR

XSAKXDCK

53XHACXSRQXSRQ

26HDB8 SDEF

XTL1

45

SCK_

DSD

58

GFS_

DVD

64

JIT

3

DOCT

RL/IS

BTES

T63

MD2

76

172-1761,2,4

5,7,9-14

17187833943435

95

XRD

17

XWR

18

XCS

19

XINT

0

20

XINT

1

21

HDB0-HDB7

MA10/MNT1 92

93

44,41,39,3532,30,27,24

66-69,71,73-75,

96,97,99,101,102,104-106

2-5,7-10,

41-44,46-49

79,80,82-87,89,91

21-24,27-32,20,19

8 8

XRST

XRST

B

A DVD DSP (2/2)SECTION(Page 32)

H MAINSECTION(Page 34)

DRV

DRV

DRV

DRV

42

43

DVD DSP (2/2)SECTION(Page 32)

10 97

-

-

2

9

-ID

8D

-1Q

8Q

-19

12

OE

IC256 DATA LATCH

IC258 DATA LATCH

IC259 DATA LATCH

Q201

R-CH

IC352 A/D CONVERTER

R-CH

L-CH

AVO-AV7

1

OE

OE

2 1D

3 2D

4 3D

191Q

182Q

173Q

1

191Q8 7D

7 6D9 8D

182Q171615141312

3Q4Q5Q6Q7Q8Q

151 VINL DOUT

2 VINR

ADC DATA

LRCKBCK

14 BCK13 LRCK

16 SYSCK

1

HCD-NXM4D

3232HCD-NXM4D

7-3. BLOCK DIAGRAM DVD DSP (2/2) SECTION

Signal pathJ : DVDg : VIDEO

M-REQVMUTEVIDEO SWSYS RESET

I2C-CLK I/O

I2C-DATA

IC901 (2/2)MECHANISMCONTROLLER

131VDAC 0 VI/P SW

CY

CB/RCR/B

I2C-DA

D +3.3V

I2C-CL

125VDAC 2128VDAC 1

122VDAC 3

7-9

12-19

119

HA1-22

HA4-22

HA1-3

HA1-3

HAD0

-15

VDAC 4WIDE107VS

190ALE195HCS025WEH.UDS27HREAD

IC207DVD SYSTEM PROCESSOR

IC231,232,233ADDRESS LATCH

184

HIRQ

1DR

VIRQ

36

191

RST_

SPC

RST

38

DRVR

DY

37

161

I2C

DAI2

C_SI

O

78

160

I2C

CLI2

C_SC

L

79

202

RESE

T

185

DRVC

LKSC

K_ZI

VA

35

186

DRVT

XSO

_ZIV

A

34

187

DRVR

XSI

_ZIV

A

33

162

CS (Z

IVA_

E2P)

165

WRI

TE_C

TRL

(ZIV

A_E2

P)

116

HIRQ

2

188 DRVRDY

D+3.3VAUDIO+5V

CS_Z

IVA

32

3 MO1SO2SO3

27M768FS768FS768FS-2

768FS-1 1310

IC906CLOCK GENERATOR

IC111SWITCH

6CLR

CKQ3 1

21

4

IC904FF

IC902GATE

5DI4SK3CS1R/B

DOWC 8

6

IC204EEPROM

HDB-DATA

DCKLRCK

XCK

SDEN179X SAK#SDCLK183X DCK#

X SRQ SDREQ178

139XIN

IC203 SDRAM

DQ0-DQ31

A0-A9,A10/AP,NC

MD0-MD31

SDDATA0-SDDATA7,

MA0-MA11

HAD0-HAD15

MDQM0-MDQM3DQM0-DQM3MWEWEMCASCASMRASRASMCS0CS

12

32

8

4

5316,71,28,59

1718 5219 5120 49

BA0BS0 22 48BA1BS1 23

1 3

47MCLKCLK 68 56

CKE 67

57-6064-7175-7881-8488-95

99-102

2-9

2,4,5,7,8,10,11,13,

74,76,77,79,80,82,83,85,31,33,34,36,37,39,40,42,45,47,48,50,51,53,54,56

42-3345,46

22,19-14,11-3

HA1-HA3 2,207,206

177-174171-168

25-2760-6624,21

150DATA0(DM)151DATA1(FLR)154DATA2(SLR)155DATA3(CSW)

149BCK148LRCK147XCK

110MREQMREQ

BCK-1LRCK-1

XCK1

113MDI

108I/P SW

114MC115ML

MDIMCML

MDI

RSTAUDIOD +3.3V

MCML

Q202

1LE

IC302D/A CONVERTER

DATA3DATA2DATA1DATA4BCK

VOUT7

IC392

+3.3VREG.

A3V-2D +5V 1 3

IC907

+3.3VREG.

D +3.3V D +1.8V1 3

IC211

IC502

+1.8VREG.

D +5V A3V-11 3+3.3VREG.

VOUT8DM-LDM-R

SL-INSR-IN

LFE-IN

FL-INFR-IN

C-IN

VOUT1VOUT2

VOUT5

VOUT3VOUT4

VOUT6

LRCKSCKI

47464531404138

1620

1413

10

1211

9

363534

37

62,73,86,97

DATA1DATA0

DATA2DATA3

26

11

CE

DQ0-DQ15

A0-A21

HAD0-15

HAD0-15

11 WE28 OE

IC206RAM

29-36,38-45

25,24,23,22-18,8-1,48,17,16,9,10,13

7XTIX902

27MHz8XTO

D MAINSECTION(Page 34)

BDVD DSP(1/2)SECTION(Page 31)

CMAIN

SECTION(Page 34)

ADVD DSP (1/2)SECTION(Page 31)

23CVBS OUT4 CVBS INCVBS

6 Y-INY/G2 C-INC

12

14

CB-INCB/R

CR-IN

SI

13 MUTE2

3

9

MUTE1

I/P

10 CY-IN

CR/B

25WIDE

I/P SW

Y-OUTC-OUT

2126

IC1101VIDEO AMP/BUFFER

20CY-OUT

18CB-OUT

16CR-OUT

VIDEOOUTVIDEO

J1102

COMPONENTVIDEO OUT

J1103

S VIDEOOUT

J1101C Y

Y

PB/CB

PR/CR

SDERROR182SDEF#

4 3

61

2S-CD

1S-1D

2,5

I/PSWITCHQ1101

HCD-NXM4D

3333HCD-NXM4D

7-4. BLOCK DIAGRAM TUNER/TAPE DECK SECTION

TUNER

Q25,26Q270

R-CHL OUTR OUT

ST-MUTETUNERST-CE

ST D OUTST D INST CLK

STEREO

DECK-A

DECK-B

L

R

HP901

HP901

L

R

HE901

HRP901

HRP901

TAPE

F REC

B SHUTA HALFA PLAYB PLAY

A HALFA PLAYB PLAY

R-RECB HALF

A SHUT

CAPM+

A TRIG+

B TRIG+

R-CH

R-CH

Q303Q314,315

Q301,302Q311-313

Q104Q31,22R-CH

L

R

R-CH

L

R

VIDEO/SAT

MIC1J1060

J1061MIC2

MECHANISM DECK

64

61

66

27

18

505152535455

63

5

10

3

11

REC/PBSWITCH

MUTESWITCH

REC/PBSWITCH

BIASOSC

Q318T301

Q316,317BIAS

REC/PB

BIASSWITCH

TC RECMUTE

12

CAP MDRIVE

Q326,327

Q323,324

Q321,322

IC1060(1/2)

IC1061MIC ECHO

RV1060

A TRIGDRIVE

9091

86

89

87

88

3

29

4

67 468 2669 25

65

58

97100

92

LINE MUTE

A MUTE

ST-MUTETUNEDST-CE

ST-DINST-CLK

B HALF

FDRONT RELAY

57STK-MUTE

56TA MUTE

STBY RELAY

I/O EXP CLK

M16537 CLK

M16537 DATA

SPEC-INVACS INAMS IN

I/O EXP LAT

I/O EXP DATYA INI/O EXP DATA OUT

CLK

DATA

D182

A SHUT

A TRIG

B TRIG

MIC SW

LPF1 INLPF1 OUT

LPF2 OUT

CAPM-CNT1

TC REC MUTE

60 TC REC/PB

59 BIAS

B SHUT

ON/OFF(SWITCHING REGULATOR)

ST-DOUT

8081

19

8

20212223

18

17

9

R-CH

CN102

SURR-L

FL-OUT

AMPSECTION(Page 35)

MAINSECTION(Page 34)

MAINSECTION(Page 34)

AMPSECTION(Page 35)

CN103

Q21,22Q1Q101

FL

SW

FR

SW

DBFB FEED BACKPROTECT

STK MUTEFRONT RELAY

HP SWFAN CTL

SW RELAY

MIC SIG

63

62

71

70

68 67 66 65

7 8 11 53 51

56

50 5948 34 35

R-CH

Q341-343Q103Q29,30

Q140Q33,34

SELECTOR

R-CH

AMSDPL-2

DPL-2

42 41 37

29

R-CH

S2

FL

CLK DATA

CLK DATAEQ

AGC

MD BUSTONE

TRE

AMSMUTE

AMSBUFFER

PB MUTE

LEDSWITCH

LEDSWITCH

AMS-MUTESTEREO

Q1026

D1021

D1001-1005

Q1001-1005

B PLAYA PLAYA HALF

CLK

LED 9V

VCC

LATCHDI 1DO 2

IC951I/O EXPANDER

IC401 (1/2)SYSTEM CONTROL

IC101INPUT SELECT SWITCHELECTRICAL VOLUMEI

HP IN

HALF PLAY

AMS MUTEDISC1

DISC2DISC3DISC4DISC5

PROTECT

24

7SW RELAY

FAN

MUTESWITCH

B TRIGDRIVE

Q401MIC

SWITCH

SURR

UNREG+5V

SWITCHINGREGULATOR

UNREG+12V

AC-IN

MCUI/F

I

E

L

K

SW-OUTM

F

52

IN

OUT

ANALOG-IN-L J

3031

BUFFER

TA MUTE N

RV1061

IC1060(2/2)

Q903.904

REG SW

3

IC901

REG 1

3

IC903

REG 1

AUDIO+9V

Q901

REG

2

5

IC906

REG 1D+3.3V

2

5

IC905

REG 1D+5.5V

M+9V,LED+9V 3

IC902

REG 1

D+3.3V

Q906

REG

DVD+5V

2

4

IC904

REG 1M+12V

Q902

REG SW

G DVD POWER

3 1

MIC LEVEL

ECHO LEVEL

6 7

MAINSCTION

(Page 34)

R-CH

L-OUTR-OUT

MAINSECTION(Page 34)

MAINSECTION(Page 34)

MAINSECTION(Page 34)

MAINSECTION(Page 34)

HH

H

R-ch is omitted due to same as L-ch. Signal pathF : TUNERE : PLAY BACK (DECK A)d : PLAY BACK (DECK B)G : RECORDJ : DVDN : MIC

HCD-NXM4D

3434HCD-NXM4D

7-5. BLOCK DIAGRAM MAIN SECTION

IC401 (2/2)SYSTEM CONTROL

FL-DATAFL-CLKFL-CS

FL-RESET

M61530CLK

DVD POWER

DVD A MUTE

M61530DATA

SIRCD

AD-KEY2

AD-KEY1

JOG2-A

JOG1-A

VOL-A

POWER KEY

DISPLAY KEY

XC-IN

X-OUT

XC-OUT

X-IN

858483

33 LD MTR POSU/D MTR NEGU/D MTR POS

SUB TRAY OUTSUB TRAY INTRAY CLOSE SWTRAY OPEN SW

ST-E1ST-E2ST-E3ST-E4MD-E1MD-E2MD-E3MD-E4D,SENSER

EVER+4V

EVER+4V

4734463545

CDN-MOT-NEG-1(LD)CDN-MOT-POS-1(LD)

CDN-MOT-NEG-2(U/D)CDN-MOT-POS-2(U/D)

CDM-MAIN-SW-OPEN(SW2)CDM-MAIN-SW-CLOSE(SW4)

CDM-SUB-SW-OPEN(SW2)CDM-SUB-SW-CLOSE(SW3)

CDM-ENC-B-3(MDM4)CDM-ENC-B-2(MDM3)

CDM-ENC-B-1(MDM2)CDM-ENC-B-0(MDM1)

CDM-ENC-A-3(STE4)CDM-ENC-A-2(STE3)

CDM-ENC-A-1(STE2)CDM-ENC-A-0(STE1)

DISC SENS

LED-STANDBY

RESET

AC-CUT

48 LD MTR NEG

CLCK

DATADVD POWER

1

2

28

27

3644

43384239

37

414075

REAR RELAY 6

72

12

20

SW MUTE 19 LD/ST MTR POSBU U/D MTR NEGBU U/D MTR POS

SW3 SUB TRAY OUTSW2 SUB TRAY OUT

SW4 SUB TRAY CLOSE OUTSW1 SUB TRAY OPEN OUT

ST-E1ST-E2ST-E3ST-E4

MD-E1MD-E2MD-E3MD-E4

D,SENSER

LD/ST MTR NEG

CN201

ANALOG-IN-R R-CH

R-CH

CN104

RELAYC-INSR-INSL-IN

SURR-R

SURR-L

R-CH

FL-OUT FL-OUT

R-CH

L-OUTR-OUT

ANALOG-IN-L

L-OUT

R-CH

ANALOG-IN-LQ102

DM-L L OUT

DM-R

DM-LDM-R

SL-INC-IN

FR-INFL-IN

SR-INLFE-IN

ANALOG-IN-L

OUTSIRCS

IC1050

41

KEY2-1KEY2-2

S1043S1001-1005

S1051

KEYNETWORK

94

ROTARYENCODER

ROTARYENCODER

ROTARYENCODER

TREBLE 78JOG2-B79

S1050

76JOG1-B77

S1052

S1042

70VOL-B71

74

95

BASS

BASS

X40136.768kHz

X40216MHz

VOLUME

S1021-1027,1029-1031S1032-1036

REMOTECONTROLRECEIVER

KEYNETWORK

S102873DISPLAY

10

11

13

15

82

LEDSWITCH

MUTESW

Q270

MUTESW

Q271

MUTESW

Q272

MUTESW

Q273

MUTESW

Q274

MUTESW

Q275

MUTESW

Q276

MUTESW

Q277

MUTESW

Q25,26

S,WSURR-L

DVDA MUTE

Q1041

D1050

IC391RESET

Q391

3 1LEVEL

DETECT

IC701LD/ST MOTOR DRIVER

9 RINFIN

OUT1M761

(LD/ST)ROTARY

ENCODER(ST U/D)

S781

OUT2742

IC711U/DOTOR DRIVER

9 RINFIN

OUT1OUT27

42

25 SYS RESETVIDEO SWVMUTE

I2C DATAI2C CLK I/O

24232930

DVD MUTE REQDVD SYS RESTDVD VIDEO SW

DVD VIDEO MUTEIIC-CLK

IIC-DATA

26 M-REG

IC1020DISPLAY CONTROL/KEY CONTROL

IC201INPUT ATTENUATOR

LPF, AGC, BASS BOOST

8765

51I

15

321

64I

57

56

55

4

54

GREIDDRIVE

Q1021

GRIDDRIVE

Q1022

55 GRIDDRIVE

Q1023

SDATASCKCSRESET

SEG00I

SEG35

DEG01

FL1020FLUORESCENT

INDICATORTUBE

F1

F2

DEG11

DEG12/SEG36

DEG13/SEG37

DG00

DIG14SEG38

VF1

VP D/D CON+9V

Q1024T801D1023-1026

VF2

VPRECT

BIASOSC

DVD DSP(2/2)SECTION(Page 32)

D

G

L

Q23,24,40

ANALOG INMUTE

37 38

R OUT39

EL OUT34

12

5

FL IN

40

FR IN

41

CIN

2

SL-IN

13

SR-IN

6

SWSW

10

LFE-IN14

15

9

24

11

3

4

25

8

9

23

32

33

22

29

26

SW-LPF

Q3

MUTESW

R-ch

Q21,22

TAMUTE

DATACLOCK

Q19,20

SWMUTE

Q6

SWMUTE

Q4

SW

MUTESW

M

O

TA MUTE

DATA

CLOC

K N 17 18

M

M762(U/D)

MAIN TRAYOPEN/IN

S721

S731

OPEN

CROSE

M

(SUB TRAY OUT)

(SUB TRAY OUT)S761

ROTARYENCODER

(MD)

S771

SENSESWITCH

Q751

D+3.3V

IC751(DISC SENSOR)

DVD DSP(1/2)SECTION(Page 31)

H

DVD DSP(2/2)SECTION(Page 32)

TUNER/TAPEDECK

SECTION(Page 33)

TUNER/TAPEDECK

SECTION(Page 33)

C

J

I

K

TUNER/TAPE DECKSECTION(Page 33)

TUNER/TAPE DECKSECTION(Page 33)

TUNER/TAPE DECKSECTION(Page 33)

AMPSECTION(Page 35)

TUNER/TAPE DECKSECTION(Page 33)

TUNER/TAPE DECKSECTION(Page 33)

R-ch is omitted due to same as L-ch. Signal pathF : AUDIOJ : DVD

HCD-NXM4D

3535HCD-NXM4D

7-6. BLOCK DIAGRAM AMP SECTION

R-ch is omitted due to same as L-ch. Signal pathF : AUDIO

18

19

STKMUTE

SWITCH

8 9

FL

FR

SW

DBFB FEED BACK

CN501

R-CH

STK MUTE

FRONT RELAY

HP SW

FAN CTL

PROTECT

SW RELAY

CN508

FAN

3

2

1

4

10

11

22

21

-VHSUPP

TEMPDETECT

MUTESWITCH

-VH

D501Q507,508

D507

Q854

RELAYDRIVE

Q509

R-CH

R-CH

SL IN

SR IN

C IN

RELAY

R-CH

R-CH

L

Q854

IC850OVER CURRENT PROTECTER

IC601SURROUND AMP

IC501POWER AMP

Q850-852

Q501,502Q503

Q858-861

MUTECONTROL

OCP

OUTVP

CT

Q868,869,890

Q505

-PRE +PRE

TM502

+VH

OVERLOAD

DETECT

SPEAKERPROTECT

RELAYDRIVE

RELAYDRIVE

Q510

R

L

R

PHONES

SUB WOOFER

FRONT

SURROUND

CENTER

J1063

Q506OVERLOAD

DETECT

FANMOTORDRIVE

FAN

E

F

TUNER/TAPEDECK

SECTION(Page 33)

TUNER/TAPEDECK

SECTION(Page 33)

OMAINSECTION(Page 34)

3

15

8

13

Q603 Q601

Q610

SL SP

C SP

PROTECT

OVER DCDETECT

OVER DC CURRENT DETECT

PROTECTSWITCH RELAY

DRIVE

SPEAKEROUT

CN601

PROTECTSWITCH

HCD-NXM4D

3636HCD-NXM4D

7-7. PRINTED WIRING BOARD RF SECTION See page 29 for Circuit Boards Location.

Ref. No. LocationIC101 D-8IC251 C-6IC301 C-8IC303 B-8

Q10 E-4

SemiconductorLocation

C023

C028

C040

C037

R004

R005

C038

C022C020

R016

R003

R018

R014R012

C027C0

41

C010

Q002

Q001

R007

C039

R001

C021C013

R009

R008

C008

EE

C017C015

C011

C009

R021CN00

3

CN001124

CN00

2

C049

IC003R033

13

54

R034R047R046

C050

C052

R091

R024

R025

R023C029

C026R026

C024

R027

R017R015

C042R013

R019

L002

L001

C003

D002

D001

R022

R020

C031

R011

C006

C005

C034

R006

R028R029

C036

C032

C035JL005

RFMONC033

C004

C012

C025R

010

C002

C030

C018C016

C014

C019

R035

C001

R041

R031

C051VC

IC001

32

33

4849 64

1

16

17

12(12)

1-684-822-12(12)

1-684-822-

ADMB07BOARD

(Page40)

OPTICAL PICK-UPBLOCK(DBU-3)

OPTICAL PICK-UPBLOCK(DBU-3)

(SIDE A)RF BOARD (SIDE B)RF BOARD

2 3 4 5 6 7 8 9

A

1

B

C

D

HCD-NXM4D

3737HCD-NXM4D

7-8. SCHEMATIC DIAGRAM RF BOARD See page 63 for IC Block Diagram. See page 62 for Waveforms.

JL001

JL003

JL006C014

C015

C016

C017

C018

C019

JL002

JL004

C020

C021

C022

C023

C042

CN001

CN002

L00147uH

L00247uH

R006 R010

R011

R012

R013

R014

R015

R016

R017

R018

R021

R025

R027

R028

R029

IOP1IOP2

JL005

JL007

CN003

D001 D002

R031

R047

IC001

Q002Q001C002C010

IC003

R004R003

R005

R007 R008

C0340.1u

R091

C036

C040

C051

C039

C038

C037

C041

C050 R046

C011

C004

C001 C003R009

C012 C005C033C032

C006

C013

C031C029

C030

C028C027

C025

C026

C024

R026

R023R024

C008

C009

R001

C049

C035

R020R019

C052

R033

R034

R022

2200p B

2200p B

2200p B

2200p B

5600p B

5600p B

22p

CH22

pCH

22p

CH22

pCH

180p CH

24PTO DBU-1

29PTO MAIN

470 470

0

0

0

0

0

0

0

0

0

100

0

0

0

9PTO DBU-1/KHM240A

/KHM270A

1SS355TE-17 1SS355TE-17

100

33k

SP3723CAF0PM

2SB1132-T100-QR2SB1132-T100-QR1016V

1000p

TL343IDBVR

3333

47k

33 33

B

560k

0.47

0.1

0.47

0.03

3

0.03

3

680p

0.1

0.0033 10k

1000p

1016V

1006.3V

1006.3V

47k

0.1 2210V

0.10.047

2210V

0.1

1000p0.01

0.01

0.10.1

0.1

0.1

0.01

12k

8200

0.1

0.1

100

0.1

0.1

00

0.1

100k

470

220

MIRR

CD_LD

DVD_LD

LDON

SDEN

DATA_RF

CLK_RF

LDONA

B

C

D

F

TE

FE

MIRR

PD

RFMON

B

A

F

D

C

CD_LD

DVD_LD

PDFD-

FD+

TD-

TD+

FD+

FD-

TD+

TD-

SLB-

SLB+

SLA-

SLA+

PI/CE

SLA+

SLB+

SLB-

SLA-

FE

TE

PI/CE

SDENDATA_RF

CLK_RF

RFMON

DVD/CD RF AMP

OP AMP

BOARDDMB07

(1/6)(Page42)

HCD-NXM4D

3838HCD-NXM4D

7-9. PRINTED WIRING BOARD DVD MECHANISM BOARD See page 29 for Circuit Boards Location.

JW701

S761(SUB TRAY OUT)

R753R754R751

C702

JW71

3

Q751

R752

R755

JW71

2

JW709

JW710JW711

JW714

IC71

1R7

12

R711

C701

JW702R701

R702

CN761

CN751

JW705

JW707JW708

JW706

IC701

CN70

5

CN731

CN771CN701

C703

IC751

JW703

JW704

S721(MAIN TRAY IN/OUT)

S731(SUB TRAY N)

S771ROTARY ENCODER

(MD)

S781ROTARY ENCODER

(ST U/D)

CN721

JW715

JW716JW718

JW71

9

JW720 JW71

7

CN70

6

CN70

2

CN707

CN703

C762

C761

D701D7

11

MOTOR BOARD

SENSOR BOARD

SW(2) BOARD

SW(1) BOARD

ENCODER BOARD

RELAY BOARD

12(12)1-861-241-

12(12)

1-861-242-

12(12)1-861-243-

11(12)1-861-245-

12(12)

1-861-244-

12(12)1-861-240-

MAIN BOARD

(Page 50)B

M761(LD/ST MOTOR)

M762(BU U/D MOTOR)

43

21

G

1

1

1

1

11

1

1

6

2

3

3

3

3

1

1

2

2

3412

34

G

G

9

9

20

21

16

2 3 4 5 6 7

A

1

B

C

D

E

F

Ref. No. LocationD701 D-4D711 D-4

IC701 D-4IC711 E-3IC751 B-6

Q751 D-2

SemiconductorLocation

HCD-NXM4D

3939HCD-NXM4D

7-10. SCHEMATIC DIAGRAM DVD MECHANISM BOARD

M761

M762

S761

S731 CN731 CN703

IC751

CN751 CN705

R711R712

D711

IC711

D701

C762

C761 R702

R701

C701

IC701

CN702 CN721S721

CN701

C702

R751

R754 Q751

R753

R752R755

CN707 CN771

S771

S781

CN706CN761

RF500TB

RF500TB

(SUB TRAY OUT)

(SUB TRAY IN) 2P 2P

RPR-359F

3P 3P

680100

MTZJ-T-77-4.3A

BA6956AN

MTZJ-T-77-4.7B

0.01

0.01 100

680

4716V

BA6956AN

3P 3P(MAIN TRAY

IN/OUT)

21PIN

1016V

91

12k 2SC2785-HFEDISC SENSOR

10k

10k10k

5P 5P

ROTARY ENCODER(MD)

ROTARYENCODER

6P6P

ST-E2ST-E3ST-E4

ST-E1

ST-E4ST-E3ST-E2ST-E1

(1/3)(Page 51)

See page 66 for IC Block Diagram.

HCD-NXM4D

4040HCD-NXM4D

7-11. PRINTED WIRING BOARD DMB07 BOARD (Side A) See page 29 for Circuit Boards Location.

OMAIN

BOARD(Page50)

K MAINBOARD(Page50)

A RFBOARD(Page36)

N MAINBOARD(Page50)

P VIDEOBOARD(Page48)

C576

R964

C539

JW501

R805

JW801

JW806JW805

JW802JW804

JW803

A5

A6

A9

A10

A13

A14

A17

A18

A15

A16

A19

FL703

CN101

R718

R769

C717

R767

C777

C778

C779

C780

R975

CN901

FL702

R908

R765R764

R763

R762

C702

R250R2

15

C705

IC90

6

IC9041 4

18

169 8

13

4 55 IC902

C706

C708

C530

C711

FL20

4

C712

R927 R9

31

C130

2

C917

C916

C915C914

C907

C715

C716

C533

C556

C561

R751

C588

X902

C771

C773

C774

C701

FL70

1

IC701

C259

C258

R601

R788

R707

R708

R226

R225

R327

R296

R217

R916

R219

R709

R629

R984

R284

R283

R277

R276

R275

R274

R273R2

69

R917

R15

R268

R505

R267

R266

R265

R264

R263

R14

R988

R254

R13

R994R995

R997

R998

C364

C357

C356

C355

R571

C352

R711

R234

R712

R231R230

153

104

208

157

52

156 105

C781

R552

R5481

1

3

2021

1

4

8

5

40 41 6061

80

C213

C215

R202

C325

1

12

36

25

13 24

48 37

C321

R714

C305

X901

C304

C303

121

2D1

303

D130

4R1

302

R978

IC259

IC25

8IC

256 1

10

20

12

34

11

110

21

1617

2011

110

2011

R716

IC207

FL20

5

D202

CN202CN105

R717

R719

FL20

6

C502

R907

R906

R905

C552

C201

C517

C518

R921

R922

R923

C522

R928 R929

C526

11 7

1 44

132 89

4588

176

133

229

28

C528

C101

C151

JW39

2

C531

C534

C535

C543

C544C5

45

C548 C5

51C553

IC211

C558

C560

C563

C565

C567

C568

C569

C573

C590

C366

FL101

C901

C902

C924

12 12

13

C903

C905

C926

C927

R962

R958

C592

R747

FB10

5

C202

R748

CN501

D901

FL50

1

FL50

2

FL90

1

IC503

IC509

IC901

C532

R758

C286

C284

L103

R760

R504

C266

C265

C263

R506

Q201

E

R510

R511

R523

C261

R599

R593

C253

C252

R588

R586

R584

R9985R3

14

C925

C3941 13

C393

C392

C248

R940

R942

R572

R943

R568

R567

C246

R566

R565

R564R563

R562

IC302

CN102

R561

R560

FL352

R559

FL30

3

FL302

R9984 R9983

R9982

C245

C242

C241

C239

CN10

7

R970

C227

R551R550

C214

R545

R536

R938

R936

R213

C283

C278

C277

C904

125

265051

75

76 100

C306

R197

R198

C287

C279

IC231110

2011

110

2011

IC232

C733

C291

L501

C547

(SIDE A)DMB07 BOARD

12(12)

1-861-848-

R299

2 3 4 5 6 7 8 9 10

A

1

B

C

D

E

F

G

Ref. No. LocationD1303 C-1D1304 C-1D202 D-6D901 E-3

IC207 C-8IC211 D-6IC231 E-9IC232 E-9IC256 C-7IC258 C-7IC259 B-7IC302 C-2IC503 D-5IC509 E-6IC701 E-8IC901 D-4IC902 D-7IC904 D-7IC906 D-7

Q201 B-7

SemiconductorLocation

HCD-NXM4D

4141HCD-NXM4D

7-12. PRINTED WIRING BOARD DMB07 BOARD (Side B) See page 29 for Circuit Boards Location.

R549

R270

JW393

IC392

IC90

7

IC50

2

JW35

2

B5

B6

B8

C542

B7

B11

R369

R368

C727

C767

C769

R789

C729

FL70

6

R799

R777

R776

R778

C703

R335

FL90

3

C709

FB903

FB90

2

R932

R933

C713

C714

C516

C524

C718

C720

C721

C722C723

C724

C725

C726

C728

C730

1

110

2011

25

5026

C740

C741

C742

C743

C744

C745

C752

C760

C761

C762

C763

C765

C766

C768

C772

C775

C782

C783

FL70

5

C367C368

R785

R786

IC706

R700

C275

C264

C205

R787

R294 R293

R222R221

R228

R100

0

R329R328

IC206