HCD RG121+Sony+Audio

SERVICE MANUAL

Sony CorporationHome Audio CompanyPublished by Sony Engineering Corporation

AEP ModelUK Model

E ModelAustralian Model

MINI HI-FI COMPONENT SYSTEM

9-877-658-012004D1679-1 2004.04

Ver 1.0 2004.04

SPECIFICATIONS

HCD-RG121

HCD-RG121 is the tuner, deck, CD andamplifier section in MHC-RG121.

Amplifier sectionAUDIO POWER SPECIFICATIONS

DIN power output (rated): 50 + 50 watts (6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference):65 + 65 watts (6 ohms at 1 kHz, 10% THD)

Music power output (reference):130 + 130 watts (6 ohms at 1 kHz, 10% THD)

The following measured at AC 120, 127, 220, 240 V 50/60 HzDIN power output (rated): 50 + 50 watts (6 ohms at

1 kHz, DIN)Continuous RMS power output (reference):

60 + 60 watts (6 ohms at 1 kHz, 10% THD)

CD player sectionSystem Compact disc and digital

audio systemLaser Semiconductor laser

(=780 nm)Emission duration: continuous

Frequency response 2 Hz 20 kHz (0.5 dB)Wavelength 780 790 nmSignal-to-noise ratio More than 90 dBDynamic range More than 90 dB

Tuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner sectionTuning rangeNorth American model: 87.5 108.0 MHz

(100-kHz step)Russian model: 65.0 74.0 MHz

(There is no stereo effect. 10-kHz step)87.5 108.0 MHz (50-kHz step)

Other models: 87.5 108.0 MHz(50-kHz step)

Antenna FM lead antennaAntenna terminals 75 ohms unbalancedIntermediate frequency 10.7 MHz

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

using Sony TYPE I cassettes

Model Name Using Similar Mechanism NewCD CD Mechanism Type CDM74-K6BD80Section

Optical Pick-up Name KSM-213DCP/Z-NP

Tape deck Model Name Using Similar Mechanism NewSection Tape Transport Mechanism Type CWM43FF-05

Continued on next page

2HCD-RG121

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.

GeneralPower requirementsEuropean and Russian models:

110 watts0.25 watts (at the Power Saving Mode)

Other models: 110 watts

Dimensions (w/h/d) incl. projecting parts and controls Amplifier/Tuner/Tape/CD section:

Approx. 280 327 425 mm

Mass European and Russian models:

Approx. 8.5 kgOther models:

Design and specifications are subject to change without notice.

Approx. 8.5 kg

AM tuner sectionTuning rangePan-American models: 530 1,710 kHz

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

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

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

Antenna AM loop antennaAntenna terminals External antenna terminalIntermediate frequency 450 kHz

The release method of a CD disc tray LOCK function

There is a disc lock function for the disc theft prevention for ademonstration at a shop front in this machine.Procedue:1. Press the ?/1 button to turn the set on.2. Press two buttons of x and Z (EJECT) simultaneously for

five seconds.3. The message LOCKED is displayed and the tray is locked.

(Even if exiting from this mode, the tray is still locked.)4. Press two buttons of x and Z (EJECT) simultaneously for

five seconds again.5. The message UNLOCKED is displayed and the tray is

unlocked.6. To exit from this mode, press the ?/1 button to turn the set

off.

This appliance is classified as a CLASS 1 LASER product. TheCLASS 1 LASER PRODUCT MARKING is located on the rearexterior.

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.

NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR 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 CHECKThe 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,observe from more than 30 cm away from the objective lens.

CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous radiationexposure.

Laser component in this product is capableof emitting radiation exceeding the limit forClass 1.

3HCD-RG121

TABLE OF CONTENTS

1. SERVICE POSITION ............................................... 4

2. GENERAL ................................................................... 6

3. DISASSEMBLY3-1. Cover (Top) ........................................................... 93-2. CD Door ................................................................ 93-3. Front Panel Section ............................................... 103-4. CD Mechanism Deck (CDM74-K6BD80) ............ 103-5. Tape Mechanism Deck, GAME JACK Board ....... 113-6. PANEL Board ........................................................ 113-7. Back Panel Section, SUB-TRANS Board ............. 123-8. Power Transformer ................................................ 123-9. MAIN Board ......................................................... 133-10. AMP Board ........................................................... 133-11. BD80A Board ........................................................ 143-12. CONNECT Board ................................................. 143-13. DRIVER Board, SW Board .................................. 153-14. Optical PICK-UP (KSM-213DCP/Z-NP) ............. 153-15. SENSOR Board ..................................................... 163-16. MOTOR (TB) Board ............................................. 163-17. MOTOR (LD) Board ............................................. 17

4. TEST MODE ............................................................... 18

5. DIAGRAMS5-1. Block Diagram PANEL Section ...................... 225-2. Block Diagrams MAIN Section ...................... 235-3. Block Diagrams BD/DRIVER Section ........... 245-4. Printed Wiring Board BD80A Section ............ 255-5. Schematic Diagram BD80A Section ............... 265-6. Printed Wiring Board

CD MECHANISM Section ............................. 275-7. Schematic Diagram

CD MECHANISM Section ............................. 285-8. Printed Wiring Board MAIN Section .............. 295-9. Schematic Diagram MAIN Section (1/2) ........ 305-10. Schematic Diagram MAIN Section (2/2) ........ 315-11. Printed Wiring Board

PANEL COMB Section ................................... 325-12. Schematic Diagram

PANEL COMB Section ................................... 335-13. Printed Wiring Board PANEL Section ............ 345-14. Schematic PANEL Section (1/2) ..................... 355-15. Schematic PANEL Section (2/2) ..................... 365-16. Printed Wiring Board TRANS Section ........... 375-17. Printed Wiring Board AMP Section ................ 385-18. Schematic Diagram AMP POWER Section .... 395-19. IC Pin Function Description .................................. 42

6. EXPLODED VIEWS6-1. MAIN Section ....................................................... 486-2. Front Panel Section ............................................... 496-3. MAIN Board Section ............................................ 506-4. CD Mechanism Deck Section-1

(CDM74-K6BD80) ............................................... 516-5. CD Mechanism Deck Section-2

(CDM74-K6BD80) ............................................... 52

7. ELECTRICAL PARTS LIST .................................. 53

Unleaded solderBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size.)

: LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher than

ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful!

Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occursuch as on IC pins, etc.

Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.

4HCD-RG121SECTION 1

SERVICE POSITION SERVICE POSITION-1 (AMP BOARD)

To inspect the AMP board, turn both of the front panel and theCD mechanism deck so that the left side of the product facesdown.

front panelCD mechanism deck

AMP board

5HCD-RG121

SERVICE POSITION-2 (BD80A BOARD)

Remove the CD mechanism deck and place it on top of thepedestal as shown.Inspect the BD80A bard in this set up.

BD80A board

CD mechanism deck

6HCD-RG121SECTION 2GENERAL

This section is extractedfrom instruction manual.

Main unit

ALBUM +1) qh (12, 14, 19)ALBUM 1) wg (12, 14, 19)CD eg (9, 11, 14, 19, 20)CD SYNC wj (19)Deck A wk (18)Deck B qj (18, 19, 20, 24)DISC 1 3 q; (12, 14, 35)DISC SKIP/EX-CHANGE qs

(11, 12, 14, 19)Disc tray 9 (11)DISPLAY 2 (17, 27, 28)Display window 5 EFFECT ON/OFF 8 (22)ENTER qa (14, 15, 22)EQ BAND 7 (22)GAME es (20, 23, 30)GAME INPUT AUDIO L/R jacks wd (20, 29)

GAME INPUT VIDEO jack wf (29)

GAME MIXING wh (23)GROOVE 8 (21)ILLUMINATION2) 3 (28)MIC jack3) ws (24)MIC LEVEL3) wa (24)Operation Dial

( EQ +/l L) 6 (12, 14, 19, 22)

P FILE qd (22)PHONES jack ql PLAY MODE wl (12, 14, 18, 19,

20, 35)Power illuminator2) qk (28)PRESET EQ qd (22)REC PAUSE/START wj (19, 20,

23, 24)Remote sensor 4SURROUND 8 (23)TAPE A/B ed (18, 19, 20, 24)TUNER/BAND ef (15, 16, 20)TUNING MODE wl (15, 16, 35)TUNING + qh (15, 16)TUNING wg (15, 16)VIDEO/MD3) ea (20, 30)VOLUME control w; (21)WIRELESS4) ea (32)

?/1 (power) 1 (8, 16, 27, 30, 33, 35)

X (pause) wg (12, 19)Z (eject) qf (11)PUSH Z (deck B) (eject) qg (18)x (stop) wg (12, 19, 24, 35)M (fast forward) qh (12, 19)H or hH3) (play) qh (12, 18,

19)m (rewind) wg (12, 19)Z PUSH (deck A) (eject) e; (18)1) MHC-GX750/GX450/RG555/

RG551S/RG444S/RG441/RG333/RG222/RG221/RX550 only

2) MHC-GX750/GX450/RG555/RG551S/RG444S/RG441/RG333/RX550 only

3) MHC-RG555 only4) MHC-GX750 only

List of button locations and reference pages

How to use this pageUse this page to find the location of buttons and other parts of the system that are mentioned in the text.

Illustration numberr

TAPE A/B ed (18, 19, 20, 24)R R

Name of button/part Reference page

ALPHABETICAL ORDER

A O P Z

BUTTON DESCRIPTIONS

ALBUMALBUM

TUNING TUNING

J

Hh

S

j

s

wd

123456 78 9

q;

qf

qa

qsqd

w;

ql

waws

qgqh

qk

wfwgwh

wkwj

wl

esea

efed

eg

e;

qj

7HCD-RG121

Remote control

ALBUM * qd (12, 14)ALBUM +* qa (12, 14)CD qk (11, 14)CLEAR qg (14)CLOCK/TIMER SELECT 2

(26, 27)CLOCK/TIMER SET 3 (10, 25,

26)DISC SKIP q; (12, 14)DISPLAY wa (17, 27, 28)ENTER 9 (10, 14, 15, 25, 26)EQ qf (22)

FM MODE 4 (17)FUNCTION 6 (11, 14, 15, 16)PLAY MODE w; (12, 14, 18)REPEAT 4 (13)SLEEP ws (25)TAPE qj TUNER BAND 5 (15, 16)TUNER MEMORY ql (15)TUNING MODE w; (15, 16)VOLUME +/ qs (21, 25)

?/1 (power) 1 (8, 26)m/M (rewind/fast forward) 7 (12, 19)

/+ (tuning) qh (15)./> (go back/go forward) qh (10, 12, 19)

N (play) 8 (12, 18)X (pause) 8 (12, 19)x (stop) 8 (12, 19)

* MHC-GX750/GX450/RG555/RG551S/RG444S/RG441/RG333/RG222/RG221/RX550 only

ALPHABETICAL ORDER

A E F Z

BUTTON DESCRIPTIONS

456

7

8

9

q;

ws 1

qd

qg

qf

waw;qlqkqj

qh

qa

qs

32

Use buttons on the remote for the operation.

1 Press ?/1 to turn on the system.2 Press CLOCK/TIMER SET.3 Press . or > repeatedly to set the

hour.

4 Press ENTER.5 Press . or > repeatedly to set the

minute.

6 Press ENTER.The clock starts working.

To adjust the clock

1 Press CLOCK/TIMER SET.2 Press . or > repeatedly to select

CLOCK SET, then press ENTER.3 Do the same procedures as step 3 to 6

above.Notes The clock settings are canceled when you disconnect

the power cord or if a power failure occurs.

Setting the clock

8HCD-RG121SECTION 3

DISASSEMBLY

3-1.COVER (TOP)(Page 9)

3-2.CD DOOR(Page 9)

3-3.FRONT PANEL SECTION(Page 10)

3-8.POWER TRANSFORMER(Page 12)

3-7.BACK PANEL SECTION,SUB-TRANS BOARD

(Page 12)

3-4.CD MECHANISM DECK(CDM74-K6BD80)

(Page 10)

3-14.OPTICAL PICK-UP(KSM-213DCP/Z-NP)

(Page 15)

3-5.TAPE MECHANISM DECK,GAME JACK BOARD

(Page 11)

3-13.DRIVER BOARD,SW BOARD(Page 15)

3-16.MOTOR (TB) BOARD(Page 16)

3-17.MOTOR (LD) BOARD(Page 17)

3-15.SENSOR BOARD(Page 16)

3-11.BD80A BOARD(Page 14)

3-6.PANEL BOARD(Page 11)

3-9.MAIN BOARD(Page 13)

3-10.AMP BOARD(Page 13)

3-12.CONNECT BOARD(Page 14)

SET

Note: Disassemble the unit in the order as shown below.

9HCD-RG121

3-1. COVER (TOP)

cover (Side-R)

cover (Side-L)

5

qd

qs

qs

q;

qf cover (top)

6 two screws (Case 3 TP2)

8 screw (+BVTP 3 10)




1 two screws (case 3 TP2)

qa two screws (+BVTP 3 10)

7 screw (case 3 TP2)

2 screw (Case 3 TP2)

3-2. CD DOOR

2 Pull-out the disc tray.

1 Turn the pulley to the direction of arrow.

3 two claws

4 CD door

pulley

Front panel side

CD mechanism deck (CDM74B)

10

HCD-RG121

3-3. FRONT PANEL SECTION

1 three screws (+BVTP 3 8)

qd front panel section

7 wire (flat type) 31 core (CN302)


9 connector 5p (CN309)qs connector 8p (CN103)



4 screw (+BVTP 3 8)

5 screw (+BVTP 3 8)

0 connector 3p (CN314C)

qa connector 3p (CN112)

6 connector 2p (CN805)

3-4. CD MECHANISM DECK (CDM74-K6BD80)

2 connector 12p (CN701)3 connector 9p (CN254)

4 CD mechanism deck (CDM74-K6BD80)

1 three screws (+BVTP 3 10)

11

HCD-RG121

3-5. TAPE MECHANISM DECK, GAME JACK BOARD

2 six screws (+BVTP 2.6 8)

6 GAME JACK board

3 TRANSRATION board

5 two screws (+BVTP 2.6 8)

4 tape mechanism deck


3-6. PANEL BOARD

1 ten screws (+BVTP 2.6 8)

5 PANEL board


2 seven claws


12

HCD-RG121

3-7. BACK PANEL SECTION, SUB-TRANS BOARD




8 SUB-TRANS board

4 two screws (+BVTP 3 10)

5 two screws (+BVTT 3 10)


9 back panel section


3-8. POWER TRANSFORMER



4 earth wire

5 four screws (+ITC 4 8)

3 screw (+BVIT 3 8R)

6 power transformer

13

HCD-RG121

3-9. MAIN BOARD

4 MAIN board

2 two screws (+BVTP 3 8)



Main board

3-10. AMP BOARD

6 AMP board


4 two screws (transistor)

3 two screws (+BVIT 3 8R)


5 heat sink

14

HCD-RG121

3-11. BD80A BOARD

5 BD80A board

3 screw (+BVTP 2.6 8)


4 Remove soldering from the four points.2 wire (flat type) 16 core (CN101)

speacer

3-12. CONNECT BOARD

3 CONNECT board

2 two screws (+BVTP 2.6 8)


15

HCD-RG121

3-13. DRIVER BOARD, SW BOARD


4 DRIVER board

6 SW board

2 wire (flat type) 5p (CN702)

1 two screws (+BTTP (M2.6))

5 screw (+BTTP (M2.6))

3-14. OPTICAL PICK-UP (KSM-213DCP/Z-NP)

5 two coil springs (insulator)

9 two coil springs (insulator)

6 two insulators

0 two insulators

qs screw (+BVTP 2.6x 8)

7 two screws (BVTT M2.6)

3 screw (BVTT M2.6)

2 holder (213) ASSY

8 two stoppers (BU)

qd Remove the four solderings of motor.

qf CN101 (flat type)

qg BD80A board

qh optical pick-up (KSM-213DCP/Z-NP)

1 floating screw (+PTPWH M2.6)


qa

16

HCD-RG121

3-15. SENSOR BOARD

2 tray

3 belt (table)

5 pulley (table)

8 screw (+BTTP (M2.6))

0 SENSOR board

7 gear (geneva)

9 connector (CN731)



4 foating screw (+PTPWH M2.6)

3-16. MOTOR (TB) BOARD

6 Remove the two solderings of motor.

7 MOTOR (TB) board

5 table motor assy (M741)


4


1 stopper

2 stopper

17

HCD-RG121

3-17. MOTOR (LD) BOARD

4 Remove the two solderings of motor.

3 MOTOR (LD) board

1 belt (loading)

5 loading motor assy (M751)


18

HCD-RG121SECTION 4TEST MODE

Step123456789

101112

OperationRewind the TAPE ARewind the TAPE BPlay the TAPE A (1 minute)Stop the TAPE A (1 second)Play the TAPE A (3 minutes)Rewind(AMS) the TAPE AF.F.(AMS) the TAPE APlay the TAPE B (1 minute)Stop the TAPE B (1 second)Record the TAPE B (3 minutes)Rewind(AMS) the TAPE BF.F.(AMS) the TAPE B

DisplayTAPE AAG-1TAPE BAG-2TAPE AAG-2TAPE AAG-3TAPE AAG-4TAPE AAG-5TAPE AAG-6TAPE BAG-2TAPE BAG-3TAPE BAG-4TAPE BAG-5TAPE BAG-6

Disc errorDisplay Error

E00D01022 Focus error (No disc)E00D02022 Sub Q error (Focus is good)E00D02023 TOC reading errorE00D02014 Access error (Unable within regular time)

Mechanism errorDisplay Error

E00M__E_0 Error during opening trayE00M__C_2 EX-CHANGE disc errorE00M__D_0 Error during closing trayE00M__F_3 EX-OPEN errorE00M__D_5 EX-CLOSE errorE00M__C_2 Chuck-up errorE00M__C_3 Unchucking error

2) Error display If error occurred, the display remains like TAPE BAG-2.

4. Exiting from the aging mode Be sure to perform Cold Reset to exit from the aging mode.

[Change-over of AM Tuner Step between 9 kHz and10 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 TUNER/BAND and ?/1 buttons simultaneously, and

the display of fluorescent indicator tube changes to AM 9 kSTEP or AM 10 k STEP, and thus the channel step is changedover.

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

RAM to initial conditions. Execute this mode when returningthe set to the customer.

Procedure:1. Press three buttons x , PLAY MODE/TUNING MODE ,

and DISC1 simultaneously.2. The fluorescent indicator tube displays COLD RESET and

the set is reset.

[Aging Mode]This mode can be used for operation check of CD section and tapedeck section. If an error occurred:

The aging operation stops and is displayed status. If no error occurs:

The aging operation continues repeatedly.

1. Operating method of Aging ModeTurn on the main power and select CD of the function.1) Set three discs in tray. Select ALL DISCS, and REPEAT OFF.2) Load the tapes recording use into both decks.3) Press three buttons x , PLAY MODE/TUNING MODE ,

and EX-CHANGE simultaneously.4) Aging operations of CD and tape are started at the same time.5) To exit the aging mode, perform [Cold Reset].

2. Aging mode in CD section1) Operation during aging mode In the agining mode ,the program is excuted in the following

sequence.(1) The disc tray opens and closes.(2) The disc tray turns to select a disc 3.(3) The pick-up accesses to the first track, and plays 3 seconds.(4) The pick-up accesses to the last track, and plays 3 seconds.(5) The disc tray opens and closes.(6) The disc tray turns to select a disc 1.(7) The same operation starts like step (3).(8) After a disc 1 aging operation, a disc 2 is selected.(9) When an aging operation of a disc 3 is completed, the display

AGING value increases.(10) If no error occurs, the aging operation continues repeatedly.

2) Error display

3. Aging mode in Tape Deck section1) Operation during aging mode In the agining mode, the program is excuted in the following

sequence.

19

HCD-RG121

[MC Test Mode] This mode is used to test the function of the equalizer.

Procedure:1. Press ?/1 button to turn the set ON.2. To enter the test mode, press the three buttons x ,

PLAY MODE/TUNING MODE and DISC 3 simultaneously.3. Press the EQ+ button.

The function of the equalizer is set to MIN.4. Press the EQ button.

The function of the equalizer is set to MAX.5. Press the PRESET EQ button.

The function of the equalizer is set to EQ FLAT.6. MASTER VOLUME up and down.

VOLUME MIN, VOLUME 16, VOLUME MAX isdisplayed.

7. Press GROOVE button.The message VACS OFF on VACS ON is dislayed.

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

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

tion. Use this mode when returning the set to the customer afterrepair.

Procedure:1. Press ?/1 button to turn the set ON.2. Select the function CD.3. Press ?/1 button to turn the set OFF.4. Press CD button and ?/1 button simultaneously.5. The STANDBY display blinks instantaneously, and the CD

ship mode is set.

[CD Ship (LOCK) & COLD RESET MODE]Procedure:1. Press ?/1 button to turn the set ON.2. Select the function CD.3. Press ?/1 button to turn the set OFF.4. Press three buttons x , CD and DISPLAY simultaneously.5. The STANDBY display blinks instantaneously and CD ship

mode is set.6. The fluorescent indicator tube displays COLD RESET and

the set is reset.

[Disc Tray Lock]Procedure:1. Press the ?/1 button to turn the set ON.2. Press two buttons of x and Z simultaneously for five seconds.3. The message LOCKED is displayed and the tray is locked.

(Even if exiting from this mode, the tray is still locked.)4. Press two buttons of x and Z simultaneously for five seconds

again.5. The message UNLOCKED is displayed and the tray is

unlocked.6. To exit from this mode, press the ?/1 button to turn the set

OFF.

[PANEL Test Mode] All fluorecent segments and LEDs are tested. Keyboard check.


PLAY MODE/TUNING MODE and ENTER simultaneously.3. All segments and LEDs (without STANDBY LED) are turned

on.

4. Press X and ENTER buttons simultaneously, and the keycheck mode is activated.

5. The message KEY 0 0 0 is displayed.Each time a button is pressed, the key code number is displayed.

6. Press X and ENTER buttons simultaneously, and the keycount mode is activated.

7. The message KEYCNT 0 is displayed.Each time a button is pressed, KEYCNT 0 value increased.However, once a button is pressed, it is no longer taken intoaccount.

8. Press X and ENTER buttons simultaneously, and the headphone detect mode is activated.

9. The message H_P OFF is displayed when a headphone jackis not inserted.H_P ON is displayed when a headphone jack is inserted.

10. Press X and ENTER buttons simultaneously, and the volumecontrol detect mode is activated.

11. The message VOLUME FLAT is displayed.VOLUME UP is displayed if rotating MASTER VOLUMEknob clockwise, or VOLUME DOWN is displayed if rotatingcounterclockwise.

12. To exit from the GC test mode after the head phone detect mode,press X and ENTER buttons simultaneously.

[Version and Destination Display Mode] The version or destination is displayed.


PLAY MODE/TUNING MODE and DISC2 simultaneously.3. The destination is displayed.4. Press DISPLAY buttons simultaneously.5. The version is displayed.6. To exit from this mode, press ?/1 button to turn the set OFF.

[CD Service Mode] This mode can run the CD sled motor freely. Use this mode, for

instance, when cleaning the pick-up.

Procedure:1. Press ?/1 button to turn the set ON.2. Select the function CD.3. To enter the test mode, press three buttons x ,

PLAY MODE/TUNING MODE , and Z simultaneously.4. The CD service mode is selected.5. With the CD in stop status, press M button to move the pick-

up to outside track, or press m button to inside track.6. To exit from this mode, perform as follows:

1) Move the pick-up to the most inside track.2) Press ?/1 button to turn the set OFF.

Note: Always move the pick-up to most inside track when exiting fromthis mode. Otherwise, a disc will not be unloaded.

Do not run the sled motor excessively, otherwise the gear can bechipped.

20

HCD-RG121

[CD Repeat 5 Times Limit Release Mode]Procedure:1. Press ?/1 button to turn the set ON.2. Select the function CD.3. Press three buttons x , CD and ENTER simultaneously.4. The message LIMIT OFF is displayed.5. Press ?/1 button the set OFF.

[AMP TEST MODE]Procedure:1. Press ?/1 button to turn the set ON.2. To enter the test mode, press the three buttons x ,

PLAY MODE/TUNING MODE and ENTER simultaneously.3. Press the DISPLAY button.

The message V0 0 0 000 is displayed.4. Press the GROOVE button.

The message DBFB ON DBFB OFF is displayed.5. Press the SURROUND button.

The message SURROUND ON SURROUND OFF isdisplayed.

6. Press the EQ BAND button.The message LOW MID HIGH is displayed.

7. Press ?/1 button to turn the set OFF.

2121

HCD-RG121SECTION 5DIAGRAMS

1 IC601 qd (I-XT2)

2 V/DIV, 10 s/DIV

2 IC601 qh (CF2)

2 V/DIV, 40 ns/DIV

5.2 Vp-p30.5 s

4.9 Vp-p100 ns

Waveforms PANEL BOARD

MOTOR (LD) board

SW board

SENSOR board BD80A board

MOTOR (TB) board

DRIVER board

CONNECT board

SUB-TRANS board

AMP board

VIDEO OUT board

GAME JACK board

PANEL board

1 STREAM LED board

H/P JACK boardTRANSRATION board

MAIN board

TRANS board

REM board

AEP, UK

Circuit Boards Locations

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printed in each block.)Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F

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. 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 (detuned) conditions. Voltages are taken with a VOM (Input impedance 10 M).

Voltage variations may be noted due to normal produc-tion tolerances.no mark :FM( ) :CD STOP

AbbreviationAR : Argentina modelAUS : Australian ModelE2 : 120 V AC Area in E modelE3 : 240 V AC Area in E modelE51 : Chilean and Peruvian modelEA : Saudi Arabia modelMX : Mexican modelSP : Singapore model

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 : TUNERd : PB (DECK A)d : PB (DECK B)G : REC (DECK B)J : CDf : AUDIO

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

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

Indication of transistor.

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

C

BThese are omitted.

EQ

B

These are omitted.

C E

Q

2222

HCD-RG121

5-1. BLOCK DIAGRAM PANEL SECTION

IC601(1/2)SYSTEM CONTROLLER

CN603

D401

+B

-B

F904

12 XT1X601

32.768kHz 13 XT2

MP3-TTB80

IC610

15 CF1X602

10MHz 16 CF2

283 SIRDS-INREMOTECONTROLRECIEVER

82STREM-LED1

74

4230

POWER RELAY

11RESET

29ACCUT

ABD/DRIVESECTION(Page 24)

25 KEY3

MP3-RESET6MP3--REQ4MP3-ACK3MP3-CS2MP3-CS'1MP3-CLK100MP3-DI99MP3-DO98CD-CLK97SENS96CD-DATA95XLT94XRES93XTCN92SCOR5

FUNCTIONKEY

S641-S650

27 KEY1FUNCTIONKEY

S601-S608,S610-S612

26 KEY2FUNCTIONKEY

S621-S624,S627-S630

9 VOLUME-IN110 VOLUME-IN2ENCODER

S851

LEDDRIVER

Q610

LED851

76POWER LED

G01-G13

S1-S21

LED601

F905

AC3

D301-D304

D902Q902

IC301

REG

-VFL

F906

AC4

VF

D305-D308

D902-905

F907

REG

+3.5V 13

IC303

REG

SWITCH

Q361,Q362,Q314,Q315

RELAYDRIVE

+9V 13

D309-D312IC304

REG+9VVF

-VFL13

IC302

REG+3.5V 124

3.3V

PT902SUB TRANSFORMER

RY901

PT901POWER TRANSFORMER

IC603

REG 15

IC604

RESET 13

Q605RESET

SWITCH

FL601

FLUORESCENTINDICATOR

TUBEACIN

SCORXTCNXRST

XL-T-CDCD-DATA

SENSCD-CLK

MP3-DOMP3-DI

MP3-CLKMP3-CSMP3-CP

MP3-ACKMP3-REQ

MP3-RESETMP3-STB

C18C15C14C13C12C11C10C9C8C7C6C5C4C3C2C1

C1C2C3C4C5C6C7C8C9

C10C11C12C13C14C15C18

Q301,Q302

434547505265

MASTER VOLUME

VOLTAGESELECTOR

S901 (EA,SP,E2,E3,E51)

2323

HCD-RG121

5-2. BLOCK DIAGRAMS MAIN SECTION

CN201

CD NO SENS

CD OPEN/CLOSE

CD ENCORDER

LM-R

LM-F

TM-R

TM-F

D BD/DRIVERSECTION(Page 24)

TUNER

IC101SOUND PROCESSOR

IC102BUFFER

61 TUNER_L

19 SI

18 SO

59 GAME-L

9 TAPEA1

11 TAPEB1

15 REC-OUT1

DATA

RCLK

1 CDL

24 I-STREEMA/VACS75 SYSTEM-MUTE69 ASM

19WFR/HP/MIC18PROTECT

73SENSOR

21CD-OPEN/CLOSE20CD ENCORDERCLK

DATA9188

32VOUT233VOUT1

35

34

BBIN1

BBNF1

31BBNF2

40ASMOUT

11 Q5

12 Q6

7 Q1

6 Q0

CD-RR-CH

R-CH

CD-L

R-CH

IC371SP DRIVER

94

IC201SELECTOR

IC601(2/2)SYSTEM CONTORLLER

IC441POWER AMP

513

411

RELAYDRIVE

Q485-Q488

OVERLOAD DET

Q441,Q442

OVERLOAD DET

Q481,Q482

R-CHR-CH

RY441L

R

GAME INPUT

VIDEO OUT

JK441

Q106BUFFER

Q107BUFFER

Q327BUFFER

MUTE

MUTESTK

SWITCH

AC4

Q308,Q309,Q313

Q489

OVERHEATDET

Q483,Q484

TH441

Q101-Q104

SWITCH

CD-MUTE

Q304-Q307

TUNER-L

TUNER-R

CLKCE

TUNEDSTEREO

RDS DATARDS INT

TU-MUTE

CLKCE

TUNEDSTEREO

RDS DATARDS INT

Q351,Q352

J804

J803

VIDEO

VIDEO

R-CH

L

R

BIASOSC

Q321

Q324

+9V

STK

CD-MUTE

R-CH

REC SWCONT

7 P/B SW

R-CH

L

R

HP2

HP1

L

R

HRP2

HRP1

HE1

DECK-B

SWITCH

Q322,Q323

L101

SWITCH

Q308,Q309Q313

10 Q4SP RELAY 17 Q11

LM-R 13 Q7LM-F 14 Q8TM-R 15 Q9TM-F 16

45Q10

CLOCKLCH

BBD/DRIVERSECTION(Page 24)

J801PHONES

DECK-A

TAPEMECHANISM DECK

Q603,Q608

I-REEL-A

232270

4

TAPE B START+TAPE A START+

SOLASOLA

A-PHOTO

PWDEWC BMODE BMODE AB HALF

A HALF

I-REEL-B71

DATACLK

848586

CEDO

LCH87

B-PHOTO

A TRIGDRIVE

3 SOLBAOLB

Q601,Q606

2 MOTOR

SOLA

CLK

CEDI

DI

68 STEREO67 TUNED

STEREOTUNED

DATARCLK

DO

LCH

SOLB

MOTORCOMP

CAP MDRIVE

Q602,Q607B TRIGDRIVE

56

55

SAOUT1

SAOUT2

30BBNF2

SWITCH

3

83

SPEAKER

DRIVE

SPRELAY

Q312

I-BU1924 DATAI-BU1924 CLK8

7RDS INTRDS DATA

(AEP,UK)

DIDODO

DI

(AEP,UK)

Signal Path R-CH is omitted due to same as L-CH

: TUNER

: CD

: PB(DECK A)

: PB(DECK B)

: AUDIO

: REC(DECK B)

2424

HCD-RG121

5-3. BLOCK DIAGRAMS BD/DRIVER SECTION

: CD

Signal Path

R-CH is omitted due to same as L-CH

IC731(TABLE SENSOR)

CN701

IC701(LD)MOTOR DRIVER

42

911

RINFIN

OUT1OUT2

IC712TBL MOTOR DRIVER

42

97

RINFIN

OUT1OUT2

DMAIN

SECTION(Page 23)

LMRLMF

TM-RTM-F

TBL ADDRESS SWE-1E-2E-3

OPEN SW

Q731

M751(LOADING)

M741(TBL)

RE701

S751(LEVER SW)

ROTARYENCODER

E-3E-2E-1

SWITCH

M

M

+3V

OPTICAL PICK-UPBLOCK

(KSM-213DCP/Z-NP)

LDDRIVER

Q10

+1.7V

LD

GND

FOCUSCOIL

F+

F

T+

TTRACKING

COIL

IC251SL/SP MOTOR

DRIVER

RF AMPIC101

12

11

13

14

VR

PD

14

13

18

17

7

4

CH2OUT-FSSTP

CH2IN

CH2FINCH1RIN

CHIFIN

CH2OUT-R

CH1OUT-R

CH1OUT-F

CH1OUT-F

CH1OUT-R

CH3OUT-R

CH3OUT-F

M

M

(SPINDLE)

(SLED)

VC24

VCC

VC

A

B

C

D

E

F

DETECTOR

A

B

C

DE18

F19

LD34

PD35

FRDR14

TFDR11

98CLOK

95DATA

97XLAT100SENS

100SCOR

S101

M101

M102

88

76

81

67

XTACN

93XRST

25

26

27

28

6 FFDR13

23CH3FIN

CH3RIN

SFDR9

22 SRDR10

5 TRDR12

7

AOUT1

AOUT2

DOUT

CN201

CLK

DATA

XLTSENS

SCOR

XRST

XTACN

LOUT

ROUT

DOUT

LOUT

ROUT

DOUT

A PANELSECTION(Page 22)

B MAINSECTION(Page 23)

2525

HCD-RG121

5-4. PRINTED WIRING BOARD BD80A SECTION : Uses unleaded solder.

IC251

IC101 CONNECTBOARDCN872

(Page 32)

OPTICALPICK-UPBLOCK

(KSM213DCP)

SPINDLEMOTOR

(LIMIT)

SLEDMOTORE

1 2

A

B

C

D

E

3 4 5 6 7 8 9

2626

HCD-RG121

5-5. SCHEMATIC DIAGRAM BD80A SECTION

33

TP001

TP00

2

TP00

3

TP00

4

TP00

5

TP00

6

TP010

TP011

TP012

TP013

C183

C184

TP43TP44

TP27Q10

JR101

JR102JR103

JR105

JR107

JR109

JR110

CN201

M101

JPO004

IC101

C116

TP016

R162

R406

R407TP38

TP37

TP36

TP35

TP34

TP33

TP32

TP30

TP31

TP29

JPO001 TP26

TP25

TP24

TP23

TP22

TP015

TP19

TP18

TP17TP014

JR10

6

JR10

8

TP20

IC251

TP39

TP40

TP41

TP42

R408

R409

R410

R411

R412

C163

C161

C203

C201

C162

R171

R172C172

C174

R173

R181

R182

C186

C182

C181

C185

R151

R202

C151

C143

C142

R143

C141

R14

2

R14

1

C117

C133

C13

2

R133

R132

C13

1R

131

C124

C18R11C16

C17

R12

R13 R10

TP46 TP45

C15

TP28

C14

C10

C11JR111

TP21C125

R12

1

C12

3 C122

R111

R113

R114

C111

C112

C113

C114

JPO002

JPO003

R112

C115

S101

C195

TP009

TP008

TP007

C160

R252

C251

R251

M102

C257

C170

C252

C212

C211C202

C213

X101

C258C259

CN101

JR104

C164

C194

C210

C171

R161

R201

R204

EXCK

WFC

K

XU

GF

XPCK

GFS

C2P

O

LOCK

RFDC

RFACO

VC

22010V

22010V

MGND(7V)M+7V

TOP12SB1690K

0

00

0

0

0

0

17P

SHORT

CXD3058AR

22010V

SSTP

47k

100

100DATA

XRST

DVDD

DGND

ROUT

LOUT

AVDD

AGND

DOUT

XTACN

SHORTF-

T-

T+

F+

PD

F

B

A

DE

00

C

BA5947FM

XLT

CLK

SENS

SCOR

100

100

100

100

100

0.1

0.1

22010V

22010V

0.1

470

1M27p

0.1

0

100

100

470p

0.1

0.1

470p

0

0

22010V

0.1

0.0015

3.3k

0.1

1k

4.7k

0.1

0.01 0.4

7

180k

10k

100p

1M

330p

0.00101

22010V

100k

1 3.3

IOP1 IOP2

0.1

LD

0.1

10

100

AGND0.1

15k

0.1

0.1

1k

1k

15k

0.0033

470p

0.0033

470p

SHORT

SHORT

15k

0.1

LIMIT IN SW

0.1

FOK

DFCT

MIRR

0.1

22k

0.0068

10k

0.1

22016V

0.1

22p

220p0.1

22p

16.9344MHz

0.1 0.1

16P

0

0.1

0.1

0.1

22p

100

0

0

2727

HCD-RG121

5-6. PRINTED WIRING BOARD CD MECHANISM SECTION

1

A

B

C

D

E

F

G

H

2 3 4 5 6 7 8 9 10 11 12 13 14

(LEVER SW)CN751S751

IC731

CN731

CN741

CN74

2

C715

C731

C735

C736

R70

1

R711

R731

R721

R722

R723

R73

5

R73

2

R733

R73

4

D70

1

D71

1

Q731

C751

IC71

2

IC70

1

CN704

C737

R71

3

R712

C741

R70

2JW702

JW703

JW704

JW705

JW706

JW707

JW70

8

JW711

CN70

3

CN702CN705

R751

C752

CN70

1

JW712

JW701

JW70

9

JW710

JW713

JW714

CN72

1

MAINBOARDCN301

(Page 29)

Ref. No. LocationD701 D-6D711 D-7

IC701 F-6IC712 F-7IC731 E-11

Q731 C-9

SemiconductorLocation

2828

HCD-RG121

5-7. SCHEMATIC DIAGRAM CD MECHANISM SECTION

CN30131

no mark : FM

R701

D701

R712R711

R721

C735 C736

R722

C737

R723

R733

R734R735

C741

CN731 CN741

CN742

CN702

CN703 CN751

M751

CN704CN721C751

R751

C752

CN705 CN751

R732R731

M741

CN701

IC731

E-1E-2E-3

Q731

D711

R713

C731

C715

S751

R702

470

MTZJ-T-77-5.1A

4.7k 1k

4.7k

0.1 0.1

4.7k

0.1

4.7k

1k

12k100

0.01

3P 3P

5P

5P

4P 4P

(LOADING)

2P2P0.01

4.7k

0.1

2P 2P

10k100

(TBL)

12P

RPI-576TABLE

SENSORDTC114ESA

TBL ADDRESSENS SWITCH

MTZJ-T-77-3.6B

22k

1050V

10016V

(LEVER SW)

100

VREF

OUT2

RNF

OUT1

VM VCC

FIN

GND

RIN

IC701BA6956AN

LD MOTORDRIVER

VREF

OUT2

RNF

OUT1

VM VCC

FIN

GND

RIN

BA6956AN

DRIVER

IC712

TBL MOTOR

RE701ROTARY

ENCODER

2929

HCD-RG121

5-8. PRINTED WIRING BOARD MAIN SECTION : Uses unleaded solder.

IC371

IC201

IC304

IC30

2

IC303 IC301

IC102IC101

CONNECTBOARDCN874

(Page 32)

PANELBOARDCN601

(Page 34)

H/P JACKBOARDCN804

(Page 32)

TRANSBOARDCN907

(Page 37)

AMPBOARDCN441

(Page 38)

DRIVERBOARDCN701

(Page 27)

GAMEJACKBOARDCN801

(Page 32)

30

3

1

R CHPB

HEAD

HP1

HP2

L CH

1

2

3

ERASEHEAD

DECK-B(REC/PLAY)

DECK-A(PLAY)

REC/PBHEAD HE1

HRP2

L CH

HRP1

R CH

1

2

3

4

3

4

(CHASSIS)

(CHASSIS)

21

TUNER

10

EE

E

E

E

E

E

E

E

E

EE

E

E

E

EE

E

E

E

9 1

1

19

336

8

1

5

11 1

1 3 1 3 1

1

3

3

E

13 1

E

E

E

E

121

3 1

1 2

A

B

C

D

E

F

G

H

I

J

K

3 4 5 6 7 8 9 10 11 12 13

31

EXCEPT AEP, UK

AEP, UK

AEP

, UK

AEP, UK

AEP, UK

E

AEP.UK

EXCEPTAEP.UK

C161

AEP,

UK

C227

C289

AEP,UK

AEP,UK

C288AEP,UK

Ref. No. LocationD201 I-10D211 F-4D212 G-5D213 G-5D214 G-5D215 G-4D301 I-8D302 I-8D303 I-8D304 I-8D305 I-7D306 I-7D307 I-7D308 I-7D309 I-7D310 I-6D311 I-6D312 I-6D313 F-8D314 F-9D315 H-8D316 G-6D321 H-5D322 H-5D324 E-4D325 E-4D326 F-4

IC101 D-6IC102 D-8IC201 E-5IC301 G-8IC302 E-9IC303 G-7IC304 G-7IC371 B-4

Q101 H-9Q102 H-9Q103 H-9Q104 H-10Q105 E-11Q106 D-7Q107 D-7Q304 E-4Q305 E-4Q306 B-4Q307 B-4Q308 B-4Q309 B-3Q312 H-10Q313 B-3Q314 G-6Q315 G-6Q321 F-7Q322 F-4Q323 F-4Q324 F-4Q327 G-5Q351 G-4Q352 G-4Q361 G-6Q362 G-6


3030

HCD-RG121

5-9. SCHEMATIC DIAGRAM MAIN SECTION (1/2)

33

39

33

33

(PAGE 31)

EP101

C177

C187

C141

C145

C176

D201

R176

R177

R159R163

R166

R153R154

R136

R202

R203R204

R217

R138

R151

R221

R222

R231

R232

R109

R110

R11

2

R394 R393

R392 R391

Q106

Q304

D324

D325

R170

R172

R201

R207R206

R113

R162

R158R157

C124

Q101

Q312

C235

IC101C193

C206

R115 R129

R155

R272

R390

R101

Q102

Q305

C179

C181

C274

C275

R282

R283

R284

R168

R135

R111 R114

R132

R131

R128

Q103

Q104

Q306Q307

D326

C185

IC102

C186

C184

R169

C175

R165 R161

C178

C183

C166

C165

C164

C16

0

C152

C15

3

R141

R133

C143C142

C138

C137

C123

C12

7

C102

C125

R196

R117

C132

R120

C12

8

C129 R121

R127

C147

C144

C149

C151

C150

C148

R134

C146

C101

R198

C118

R195

C115

C192 C191

R194

C122

C11

9

C114

C113

C112

C111 R281

R208

R209

R205

R210

R211R212

C211

C213

C212

C216 C222

C214

FB201

FB203

FB204

C217

FB202

R387

R388

R395

R220

R219

C103

R104

R103C105

C106

C104

C110 R107

C109 C108

R197

R108

R106

R152

Q107

CN307

CN314

JW311

R389

JW202JW201

R223R167

R164

R171

R160

R142

C154

R137

C157C159R

139

R105

C107R102

C117 C12

1

C140

C139

C13

5

C136

R116

R156

R216

R218

C11

6

C120

R11

9

CN309

C162

22p

0.01

10 50V

10 50V

10 50V

1SS355

220k

220k

10k10k

10k

10k10k

4.7k

10k

10k10k

56

1k

4.7k

22k

C2890.001

AEP, UK

C2900.001

5.6k

2.2k

10k

470k

330k

470k

1k 10k

1k 10k

2SC3052

2SC3052

10EDB40

10EDB40

10k

100

4.7k

2.2k47k

330k

2.2k

2.2k47k

100p

2SC1623

2SA953DRIVE

0.1

BD3401KS22200p

2200p

1M 47k

4.7k

470k

22k

10k

2SA1235

2SA1235

47p

47p

47p

47p

2.2k

2.2k

2.2k

100k

4.7k

2SC5938

2SC5938

2SC59382SC5938

1050V

NJM4565M

4716V

4716V

100k

2.2 50V

10k 10k

4716V

22p

1 50V

1 50V

150

V

0.0022

0.00

22

4.7k

150V

1050V

1050V

1050V

2250

V

100

10V

1 50V

100p

C126

1000

p

0

100

4716V

1M

100

10V

4716

V

47k

10 50V

0.1

0.01

0.01

0.01

0.01

4.7k

0.1

1 50V

2.2k

1050V

0.01

2.250V

2.250V

1050V

0.01

1 50V

1 50V

1 50V

1 50V 2.2k

1k

10k

4.7k

2.2k

1k10k

2.2 50V

10 50V

10 50V

0.1 0.1

100010V

0

0

0

0.1

0

4.7k

22k

22k

22k

0.1 50V

15k330k

220p

0.01

0.150V

1050V

15k

0.01 220p

2.2k

330k

10k

2SC3052

13P

4.7k

JWJW

010k

1k

6.8k

1k

0.47

10k

150V

150V

1050V10k

220p 22

0p

100

470k

56

47k

5P

150k150k

10EDB40

4.7k

15k

15k

1 50V

1k

4.7k6.8k 6.8k

*

*

390

3P

1k

0

390

0.068

0.068

0.06

8

0.06

8

220p

220p

1 50V

C276470pC277470p

C278470pC279470pC280470pC281470p

AEP, UK

C27

10.

001

AEP

, UK

C27

20.

001

AEP

,U

K

C1610.001

C1630.001

AEP, UK

R174 10k

R17510k

C18822

50V

C18922

50V

C1900.01

Q1052SC3661 SWITCH

R17310k

R3854.7k

R38622k

CN30510P

R218, R219680 2W : AEP, UK680 3W : EXCEPT AEP, UK

*

3131

HCD-RG121

5-10. SCHEMATIC DIAGRAM MAIN SECTION (2/2)

35

28

39

30

IC30

2

C310

C311

D301

D304D303

C309

C312

C313

C318

D305D306

D307

Q322

R263

R264

R265

C258

R266

R262C253

R253

C315

R243

R244

R247

Q324

R250R251

R249

EP301D

309

D310D312

D311

R384

R379

R374

R375

R376

R377

R378

C375

C372

C373

Q361

R361R362

R364

R363

Q351

C351

Q352

R344

R245

C266

HE1

C265

C308

D315

D314

R307

R306

R308

R31

1

R310

R313

R274

Q313

Q309

Q314

C321R322

R324

D321

R325

D316

R323

IC30

1

IC30

4

Q323

C250

Q321Q327

D214

D213

D212

L101

IC30

3

C241

D211

C316

Q362C270

R356

R353 R352R351

R357R354

R358

R34

8

IC201

C249

HRP1

HRP2

HP1

HP2

D313

C251

R21

3

R21

4

C376

D322

Q315

R321

D215

C354

C342

CN301

R346 R345

R342 R341

R343

R347

R248

C352

C267

CN103

C246C248

C244C242

R241

R246

R252

R373

R372

R371

C374

D302C303

C304

C302

C301

R273

R275

C252

C259

R242

R383

R382

R380

R312

Q308

JW301

CN112

C264

C353

CN303

C306

JW303

JW302 JW305

C371

IC371

D30

8

C305

R381

C243

*CN30229P : EXCEPT AEP,UK31P : AEP,UK

330016V

1050V

10EDB40

10EDB4010EDB40

2250V

1050V

220025V

100 16V

10EDB4010EDB40

10EDB40

2SA1235

1M

1k

10k

0.4750V

100k

3.3k0.1 50V

100

10016V

10k

2SB1116

10k10k

47k

10ED

B40

10EDB4010EDB40

10EDB40

10k

10k

10k

10k

10k

10k

10k

0.1

100p

100p

2SA1235

10k2.2k

4.7k

4.7k

2SC3052

1000p

2SC3052

22k

4.7k

1000p

1000p

2250V

10k

10k

2.2k

4.7k

10k

4.7k

0

2SC3052

2SC3052

2SA1235

2.250V

22k

10k

1SS355

4.7k

1SS355

4.7k

TA78

033L

S

TA78

09S

2SC3052

4716V

2SC20012SC3052

1SS355

1SS355

1SS355

TA78

09S

1000p

1SS355

220025V

2SC162310 50V

470

47k 100k15k

2.2k4.7k

100

22k

BA3126N

1050V

11EQS04

47 16V

1k1k

2.250V

1SS355

2SC1623

4.7k

1SS355

0.1

0.1

12P

1k 10k

1k 10k

22k

22k

10k

22 50V

1000p

AEP, UK

C2880.001

8P

1000p

0.0150.0047

10

100

100

100

100

4716V

10EDB400.1

0.1

0.1

0.1

0

0

10016V

0.22 50V

10k

10k

10k

22k

2SA1235

JW

3P

1000p

2.250V

11P

0.1

JW

JW JW

470p

BU2099FV

10ED

B40

0.1

10k

TA78

033L

S

8.2k

8.2k

10EDB40

10EDB40

0.015M

0

27k

0.015

31

RD

S IN

T

RD

S D

ATA

RD

S IN

T

RD

S D

ATA

AEP,UK

EXCEPT AEP,UK

RD

S IN

T

RD

S D

ATA

RD

S IN

T

RD

S D

ATA

+3.3

V

N.C

*CN10111P : EXCEPT AEP,UK15P : AEP,UK

AEP,UK

EXCEPT AEP,UK

3232

HCD-RG121

5-11. PRINTED WIRING BOARD PANEL COMB SECTION : Uses unleaded solder.

(CHASSIS)

(CHASSIS)

VIDEO

AUDIO

L R

GAME INPUT

MAINBOARDCN314

(Page 29)

E

J

VIDEOOUT

1

1

1

5

2

6

MAINBOARDCN309

(Page 29)

PANELBOARDCN604

(Page 34)

PHONES

MASTER VOLUME

3 1

(AMS- HML-)

(AMS+ HML+)

(ILLUMINATIONLIGHT)

MAINBOARDCN305

(Page 29)

BD80ABOARDCN201

(Page 25)

PANELBOARDCN603

(Page 34 )

7

1 2

A

B

C

D

E

F

3 4 5 6 7 8 9 10 11

1

1

2

3

1313

(CHASSIS)

(CHASSIS)

1-862-310-

AEP, UK

TRANSLATION BOARD

3333

HCD-RG121

5-12. SCHEMATIC DIAGRAM PANEL COMB SECTION

26

30

36

35

30

30

E

W806

(CHASSIS)

AEP, UK

TRANSLATIONBOARD R801

R802

R803

R804

W803

CN804

C830 C831

C832

J801

C801

C802 C804 C803

JR801

CN805J803

CN874

CN873

CN872

JW864

JW862

JW863 FB871

FB872

JW275 JW865

JW276 JW866

S851

LED851

CN851

R852

SW851

R853

JW861

JW876

CN802

CN801

WIRE801

J804

C871 C873

C87

2

WIRE

5P

1000p 1000p

0.1

2P

9P17P

JW

JW

JW 0

0

JW

JW

7P

ENCORDERVR

SELU5223C-STP15

6P

2201/8W

SW ESE24SV

22k

JW

JW

100p 100p

0.01

10k

10k

22k

22k

470p

470p 0.22 0.22

3P

2P

0C8610.001

3434

HCD-RG121

5-13. PRINTED WIRING BOARD PANEL SECTION : Uses unleaded solder.

IC610

IC60

4

IC603

IC601

CONNECTBOARDCN873

(Page 32)

MAINBOARDCN302

(Page 29)

1 STREAMLED BOARD

CN851(Page 32)

TAPEMECHNISM

DECK

3

15

13

4

1 2

A

B

C

D

E

F

G

3 4 5 6 7 8 9 10 11 12 13

DISC 1

DISC 2

DISC 3

GROOVE

SURROUND

EFFECTON/OFF

RESET EQ

P FILE

DISC SKIPEX-CHANGE

ENTER

M

h

TUNING+

(CHASSIS)

1 5 10 15 20 25 30 35 41 45

(FLUORESCENT INDICATOR TUBE)

M

PLAY MODE/TUNING MODE

1

1 3

45

3

TUNER/BAND

DISPLAY

CD

E

E

GAME MIXING

GAME

TUNING-

TAPE A/B

x

X

CD SYNC

RECPAUSE/START

E

E

E

E

16

3

1E

51 50

31

30

1100

81

80

E

EE

EQ BQND

AEP, UK

AEP, UK

EXCE

PT A

EP, U

K

AEP, UK

EA

MX, AR, E2, E51

ES, AUS, SP

D620 D621 D622 D623*

*

AEP

, UK

EXCEPT AEP, UK

EXCE

PTA

EP, U

K

13

(13)

Ref. No. LocationD603 C-11D604 C-11D605 C-10D607 C-10D608 D-8D609 D-8D610 D-8D611 D-8D613 D-9D614 C-9D615 F-6D616 F-6D620 B-6D621 B-6D622 B-6D623 B-6D624 B-6D630 E-4D631 C-8D632 C-9

IC601 C-7IC603 D-9IC604 C-8IC610 C-12

LED601 B-11

Q601 F-6Q602 F-7Q603 F-6Q604 B-9Q605 C-8Q606 E-10Q607 E-10Q608 E-10Q610 E-8Q616 A-9


3535

HCD-RG121

5-14. SCHEMATIC PANEL SECTION (1/2)

33

31

36

R635

R691

R692

R693

R694

R695

R696

R697

JW601

JW602

R629

Q610

D605

R698

CN604

R628

R627

R690

C65

5

R720 R671R721R722

R659R660R661R662 R658 R657 R656 R655 R654 R653

R675

R676R664R665R666R667R668R669R670

R663 R652 R651 R650 R649 R648 R647 R646 R645 R644 R643 R642

R674

S601S602S603S604S605S606S607

S608S610S611S612

S630S629

S628 S627S624 S623 S622 S621

S641S642S643S644S645S646S647S649 S648S650

JW603

D604

D603

R641 C605

R854

R640

R639

100

100

100

100

100

100

100

100

10

DTC143EKA-T146

1SS355TE-17

220

6P

10k

10k

100

0.1

6.8k 4.7k10k15k

3.3k4.7k6.8k10k 2.2k 1.5k 1.5k 1k 680 470

15k

15k4706801k1.5k1.5k2.2k3.3k

22k 15k 10k 6.8k 4.7k 3.3k 2.2k 1.5k 1.5k 1k 680 470

15k

JW

1SS355TE-17

1SS355TE-17

220k 4.750V

220

12k

4.7k

31

A18JW784

JW783 A17BU1924 DATA

BU1924 CLK

AEP,UK

*CN60129P : EXCEPT AEP,UK31P : AEP,UKAEP,UK

EXCEPTAEP,UK

3636

HCD-RG121

5-15. SCHEMATIC PANEL SECTION (2/2)

33

35

R732

R717

R73

3

R73

4

R73

5

R60

5

R60

3

R60

1

R60

2

R60

4

R73

6

R771

R784

R72

5

R773

R75

0

R75

1

R75

2

R75

3

R75

4

R75

5

R75

6

R75

7

R75

8

R75

9

R76

0

R76

1

R76

2

R76

3

R76

4

R76

5

R76

6

R76

7

R76

8

R76

9

R77

0

R78

8

R79

1

R79

2

R79

3

R79

4

R79

5

R79

6

C654

R738

R739

R740

R741

R742

R743

R744

R745

R746

R747

R748

R621

R623

R625

R681

R680

R72

9

R73

0

R712

R713

R710

R711

R749

R737

R789

R608

R622

Q602

D616

R626

R798

R616

R799

R618

R620

Q603

R615

R617

R619

D615

R613

R797

R612

R614

R611

R609R790

R610

CN602

R60

7

R60

6

C648

C641

C618C617

C649C653

C607

D609D611

R72

7

R72

8X6

01

C625

C624

C610 C611

X602

C647

D630 R678

D607

R679

D606PTZ-TE25

R863

C646 C606C608

C609

Q604

R684R683R786

Q616

D610

D631

R688

D613R689

C615

IC604

D632

R687

C614R685

C656 100P

D6331SS355TE-17

R686

Q605

C613

C612

D608

IC603

IC610

CN610

CN608

C623

C62

8

C62

9

C63

0

C63

1

C63

2

C63

3

C634

C635

C63

6

C63

7

C63

8

C63

9

C640

C622

R716

R718R719 LED601C621

C620

R772

C642

R714

R715C619

R682

D614

JR621

Q601

R677

C643

C62

6

JR617

R774

R775

R776

R777

R778

CN603

JR60

5JR604JR606

JW640

JW631

JW620

JW712

JW68

4JW

638

JW68

5JW

636

IC601

JR613

D62

4

D62

0

D62

1

D62

2

D62

3

Q606

R624

Q607

Q608

JR61

1

JR61

2

WIRE806

FL601

JR624

470k

3.3k

100

1k 1k

4.7k

4.7k

4.7k

4.7k

47k

1k

47k

100

100

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100

100

100

100

100

100

100

0.1

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

100k

10k

10k

10k

220k

27k

100R63

010

0A1

8

A17

R63

110

0

100

10

10

10k

10k

100k

100k

47k

4.7k

1k

2SB1116-TP-LK

1SS355TE-17

1k

1k

10k

1k

10k

22k

2SB1116-TP-LK

22k

22k

22k

1SS355TE-17

22k

1k

10k

22k

22k

22k1k

10k

13P

47k

4.7k

2216V

0.125V

1000p1000p

0.1330p

1000p

1SS355TE-171SS355TE-17

4.7M

4.7M

32.7

68K

Hz

22p

18p

10006.3V

0.1

10MHz

4710V

1SS355TE-17 100k

1SS355TE-17

82

68

2216V 1

0.011

2SA1175TP-HFE

1k220k10k

DTC143EKA-T146

UDZSTE-174.3B

UDZSTE-174.3B

470

1SS355TE-174.7k

2.250V

M62703ML

UDZSTE-173.6B

10k

0.147k

47k

2SC3052F

0.1

1016V

1SS355TE-17

MM1574A

RPM7240-H4

3P

3P

4.750V

100p

100p

100p

100p

100p

100p

100p

100p

100p

100p

100p

100p

100p

4.750V

22k

22k3.3k SELU5223C -STP150.022

4735V

1k

0.1

100

4747

10V

10k

1SS355TE-17

0

2SB1068TP-K

0

0.1

0.1

0

100

100

470

100

100

7P

JR

JRJR

0

DTC143EKA-T146

1k

DTC143EKA-T146

DTC143EKA-T146

0

100

JW

JW

JW

JW

JWJW

JWJW

LC876972B-52S2-E

1SS3

55TE

-17

0 0

WIRE(CHASSIS)

FL

AEP, UK

EA

MX, AR, E2, E51

ES, AUS, SP

D620 D621 D622 D623*

****

1SS355TE-17 1SS355TE-17 1SS355TE-171SS355TE-17

AEP,

UK

EXCE

PTAE

P, U

K

EXCEPTAEP, UK

3737

HCD-RG121

5-16. PRINTED WIRING BOARD TRANS SECTION : Uses unleaded solder.

POWER TRANSFORMER(SUB)

E2, E3, SP, EA, E51, MX

1

1

1

3

3

234

E

1

10

MAINBOARDCN303

(Page 29)

F

AMPBOARDCN442

(Page 38)

N

1 2 3 4

13

ACIN

1

2

1 2

A

B

C

D

E

F

3 4 5 6 7 8 9 10 11 12

VOLTAGESELECTOR

120V

220V

230 - 240V

S901

SP, E2, E3, E51, EA

SP, E2, E3, E51, EA

MX

AEP, UK, AR, AUS

AEP, UK, MX, AR, AUS

AEP

, UK

, MX,

A

R, A

US

AEP

, UK

, AR

, AUS

AEP, UK, MX, AR, AUS

SP, E2, E3, E51, EA

E51, SP, E2,E3, EA, MX

AEP, UK

AUS, AR

JW914

JW913

*

* Not replaceablebuilt in transformer

POWER TRANSFORMER(MAIN)

AEP

, UK

, MX,

A

R, A

US

Ref. No. LocationD901 B-3D902 B-2D903 B-2D904 B-2D905 B-2D906 C-10D908 C-8

Q902 C-9


3838

HCD-RG121

5-17. PRINTED WIRING BOARD AMP SECTION : Uses unleaded solder.

IC441

SPEAKER

(IMPEDANCE USE 616 )

+ - + -

LR

(CHASSIS)

(CHASSIS)

(CHASSIS)

MAINBOARDCN307

(Page 29)

TRANSBOARDCN905

(Page 37)

E

E

E

E

E

EE

E

E

E

13

13

1

1 2

A

B

C

D

E

F

G

3 4 5 6 7 8 9 10

AEP,UKEXCEPTAEP, UK

EXCE

PT A

EP, UK

EXCEPTAEP, UK

AEP

, UK

C491

Ref. No. LocationD401 F-3D441 D-6D442 D-6D443 D-2D481 D-6D482 D-4D483 C-9

IC441 B-7

Q441 D-6Q442 D-6Q481 D-9Q482 D-8Q483 D-8Q484 D-8Q485 C-4Q486 C-4Q487 C-4Q488 C-5Q489 C-9


3939

HCD-RG121

5-18. SCHEMATIC DIAGRAM AMP POWER SECTION

30

31

C4590.1

C4600.1

C455 0.1R463 10

C457 0.1C456 0.1

R464 10

C458 0.1

JW901JW

JW925JW

C403

C404

C441

C442

C908

EP401

EP402

Q441

Q442

Q481

Q482

Q483Q484

Q485

Q486

Q487

R441

R442

R446 R458

R459

R460

R495

RY901

D908

C407

C408

D90

6

R492

R494

JW917

JW401

JW40

2

JW403

JW404

RY441

R481

R487

R488

R490

C911

C447

C448

L441

L442

R461

R462

D401

IC441(1/2)

IC441(2/2)

TH441

JW909

C405

C406

R451

R452

R411

R412

C446

JW441

JW442

FH908 FH907

FH910

FH912

FH909

FH911

F904

F905

F906

FH913FH914 F907

C906

R908

C910

C909

R903R904

Q902

C924

C925

C92

6

CN906 CN902

D905

D903 D902

D904

D90

1

JW903

JW906

JW910

JW902

W001CN901

PT901

CN905

CN907

C402

R45

6D

442

D44

1

C489

R402

EP491

Q489

R467R491

C445R413

EXCEPT AEP, UK

R493

C488

R447

C451

C453D

481

R453 C481

R485

R483

R484

R486

C444 R444R414

C487

R489

D48

2

C411

EXCEPTAEP, UK

R401

D443

R407

R455

R466 R465

JW407

R496

R457

C486R482

C454

C452

R454

R448

R445

R443

AEP,UK

C4911000P

C443

C492D483

CN442

JK441

CN441

PT902

Q48

8

CN904

C92

0

C92

1

C92

2

C923

CN903

0.1100V

0.1100V

1050V

1050V

22063V

TERMINAL, EARTH

TERMINAL, EARTH

2SC1841

2SC1841

2SC2785

2SC2785

2SC27852SC2785

2SA1175

2SC2785

2SC2785

1k

1k

1k 22k

47k

47k

11/4W

FR

RELAY U

10EDB40-TB3

0.01

16V

0.01

16V

MTZ

J-T7

2-27

D

1k1/4W

2.2k1/4W

JW

JW

JW

JW

JW

SP RELAY12V

4.7k1/4W

33k1/4W

22k1/4W

4.7k1/4W

100025V

2235V

2235V

10 1/2W

10 1/2W

0.1

1 1/4W

10050V

1050V

12k1k

2SA1932

0.1

0.1

0.1

3P 3P

10EDB40-TB3

10EDB40-TB3 10EDB40-TB3

10EDB40-TB3

1SS1

33T-

77

2P

3P

10P

0.0116V

1k1S

S13

3T-7

71S

S13

3T-7

7

100100V

100k

TERMINAL,EARTH

2SC1841

33k1/4W

22k1/4W

33k1/4W

2235V

0.1

0.11S

S13

3T-7

7

101/2W

10010V

100k1/4W

100k1/4W

1000p

4.750V

4.7k1/4W

1SS1

33T-

77

0.0116V

100k

1SS133T-77

1001/2W

1k

56k1/4W

47k1/4W

JW

100 1/4W FR

22k

2.250V

10k1/4W

0.1

0.1

101/2W

1k

1000p

0.011SS133T-77

3P

13P

*

0.01

0.01

0.01

0.01

*

JW

JW912JW

JW908JW

220050V

220050V

0.225W

0.225W

STK403-090

STK403-090

TH-10K

D10XB20

2.2k1/4W

2.2k1/4W

100p50V

JW

JW

T6.3AL/250V

T6.3AL/250V

T3.15AL/250V

T3.15AL/250V

JW

JW

JW

JW

AC CORD U

100p50V6.8k

1/4W

33k1/4W

221/4W

56k1/4W

33k1/4W

6.8k1/4W

33k1/4W

33k1/4W

2SC2

785T

P-FE

K

CN904, CN9032P : AEP, UK, MX. AR, AUS4P : SP, E2, E3, E51, EA

*

240V

220V

4P

2P

SP, E2,E3, E51,EA

AEP, UK

JW907JW

AUS, AR

SP, E2,E3, E51,EA, MX

120

220

240

AEP, UK, MX, AR, AUS SP, E2, E3, E51, EA

S901VOLTAGESELECTOR

120V

220V

230 - 240V

AEP, UK,AR, AUS

E2, E

3, S

P,

EA, E

51, M

X

JW904JW

MX

JW905JW

AEP, UK, AR, AUS

AEP,UK

AEP,UK

AEP,UK

4040

HCD-RG121 IC BLOCK DIAGRAMS

IC201 BA3126N (MAIN BOARD)

1

REC

SW1

2 3

PB S

W1

GND

4

CONT

5

GND

6

VCC

7

PB S

W2

8

GND

9

REC

SW2

IC251 BA5947FM (BD80A BOARD)

15

16

17

1819

20

21

22

23

24

25

26

27

36

28

29

30

31

32

33

34

35

1

2

3

4

5

6

7

8

9

10

11

12

13

14

LEVELSHIFT

FR

R

F

RF

F

19k

6.5k

50k 50k

100k

50k

PIN310k

Vref

50k 50k

PIN26

(ch1, 2)

POWVCC

(ch3, 4)

SW

PreVcc

INTERFACE

INTERFACE

INTERFACE

R

F

50k 50k

POWVCC

MUT

E

Vref

POWVCC

RF

10k

CH1PUTF

CH1OUTR

CH2OUTF

CH2OUTR

POWVCC

CNF4

GND

C-M

C-P

VG

CH2RIN

CH2FIN

CH1RIN

CH1FIN

SW

OPIN+

OPIN-

NC

CH4OUTR

CH4OUTF

CH3OUTF

CH3OUTR

POWVCC

MUTE

GND

GND

PREGND

CT

CH3RIN

CH3FIN

CH4IN

CH4CAPA

OUTVREF

DPOUT

TREVCC

NC

D

D

D

D

D

D

D

D

IC701, 712 BA6956AN (DRIVER BOARD)

1 2 3 4 5 6 7 8 9

CONTROL LOGIC

TSD

VREF

OUT2

OUT1

RNF

VM VCC

FIN

GND

RIN

IC101 BD3401KS2 (MAIN BOARD)

0

+

TNF2

TNF1

SUR1

SUR2

LINEOUT2

LINEOUT1

SAOUT2

SAOUT1

CAP

MIC

GAME L

GAME R

TUNER L

TUNER R

MD L

MD R

VOLO

UT1

TONE

OUT

1

TONE

OUT

2

AMS

OUT

BNF2

BNF1

MNF

1

MNF

2

MOU

T1

MOU

T2

BOUT

2

BOUT

1

BBNF

1

BBIN

1

VIN1

VIN2

VOLOUT2

BBNF2

BBIN2

LF1

LF2

LF3

LF4

SWOUT

FILTER

1/2 Vcc

Vcc

GND

VDD

SI

SC

ALC

CD L

CD R

TAPE

L

TAPE

R

PBNF

2

PBNF

1

PBOU

T2

PBOU

T1

TAPE

A1

TAPE

A2

TAPE

B1

TAPE

B2

RECN

F2

RECN

F1DI

GITA

LCO

NTRO

L

Di-L

IMIT

ER

RECO

UT2

RECO

UT1

46 45 44 43 42 41 40 39 38 37 36 35 34 3348 47

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

SURROUND

ATT ATT

BUFFERMIX

MIC MIXVOCAL FADER

+-

+-

BASS MIDDLE TREBLE

BASS MIDDLE TREBLE

G fc=100HZ

f

ALC ALC

INPUTSELECTOR

+

+

-

+

-

+

-

+ -

+ -+ -+-

+-

+- + -

+ -

+-

+-

+-

+-

+-49

SOFT

SWIT

CH + +-

+ -

+

41

HCD-RG121

IC371 BU2099FV (MAIN BOARD)

VSS N.C.

DATA

CLOC

K

LCK

OUTPUT BUFFER (Open Drain)

12BIT SHIFT REGESTER

Q0 Q1

Q2 Q3 Q4

12BIT STORAGE RAGESTER

CONT

OROL

CIRC

UIT

L. P

. F

VDD

OE SO Q11

Q10

Q9 Q8 Q7 Q6 Q5

1 2 3 5 6 7 84 10

16 15 14 13 12 11

9

17181920

42

HCD-RG121

5-19. IC PIN FUNCTION DESCRIPTION IC101 CXD3058AR (RF AMP) (BD80A BOARD)

Pin No. Pin Name I/O Description1 MIRR I/O Mirror signal input/output (Not used)2 DFCT I/O Defect signal input/output (Not used)3 FOK I/O Focus OK signal input/output (Not used)4 VSS Internal digital ground

5 LOCK I/OGFS is sampled at 460Hz; when GFS is high , this pin outputs a high signal IfGFS is low eight consecutive

6 MDP O Spindle motor servo control output7 SSTP I Disk innermost detection signal input8 IOVSS1 I/O digital ground9 SFDR O Sled drive output10 SRDR O Sled drive output11 TFDR O Tracking drive output12 TRDR O Tracking drive output13 FFDR O Focus drive output14 FRDR O Focus drive output15 IOVDD1 I/O digital power supply16 AVDD0 Analog power supply17 AVSS0 Analog ground18 E I E signal input19 F I F signal input20 TEI I Tracking error signal input to DSSP block21 TEO O Tracking error signal output from RF amplifier block22 FEI I Focus error signal input to DSSP block23 FEO O Focus error signal output from RF amplifier block24 VC I/O Center voltage output from RF amplifier block25 A I A signal input26 B I B signal input27 C I C signal input28 D I D signal input29 AVDD4 Analog power supply30 RFDCO O RFDC signal output (Not used)31 PDSENS I Reference voltage pin for PD32 AC_SUM O RFAC summing amplifier output33 EQ_IN I Equalizer circuit input34 LD O APC amplifier output35 PD I APC amplifier input36 RFC I Equalizer cut-off frequency adjustment pin37 AVSS4 Analog ground38 RFACO O RFAC signal output39 RFACI I RFAC signal input or EFM signal input40 AVDD3 Analog power supply41 BIAS I Asymmetry circuit constant current input42 ASYI I Asymmetry comparator voltage input43 ASYO O EFM full-swing output (Low = VSS, High = VDD)44 VPCO O Wide-band EFM PLL charge pump output45 VCTL I Wide-band EFM PLL VCO2 control voltage input46 AVSS3 Analog ground

43

HCD-RG121

Pin No. Pin Name I/O Description47 CLTV I Multiplier VCO1 control voltage input48 FILO O Master PLL (slave = digital PLL) filter output49 FILI I Master PLL filter input50 PCO O Master PLL charge pump output51 AVDD5 Analog power supply52 DDVROUT O DC/DC converter output53 DDVRSEN I DC/DC converter output voltage monitor pin54 AVSS5 Analog ground55 DDCR I DC/DC converter reset pin56 BCKI I D/A interface bit clock input57 PCMDI I D/A interface serial data input (2s COMP, MSB first)58 LRCKl I D/A interface LR clock input59 LRCK O D/A interface LR clock output f = Fs60 VSS Internal digital ground61 PCMD O D/A interface serial data output (2s COMP, MSB first)62 BCK O D/A interface bit clock output63 VDD Internal digital power supply64 EMPH O High when the playback disc has emphasis, low it has not65 EMPHI I High when de-emphasis is ON, low when input OFF66 IOVDD2 I/O digital power supply67 DOUT O Digital Out output68 TEST I Test pin Normally ground69 TES1 I Test pin Normally ground70 IOVss2 I/O digital ground71 XVSS Master clock ground72 XTAO O Crystal oscillation circuit output73 XTAI I Crystal oscillation circuit input74 XVDD Master clock power supply75 AVDD1 Analog power supply76 AOUT1 O Lch analog output77 VREFL O Lch reference voltage78 AVSS1 Analog ground79 AVSS2 Analog ground80 VREFR O Rch reference voltage81 AOUT2 O Rch analog output82 AVDD2 Analog power supply83 IOVDD0 I/O digital power supply84 RMUT O Rch 0 detection flag (Not used)85 LMUT O Lch 0 detection flag (Not used)86 XTSL I Crystal selection input (Not used)87 IOVSS0 I/O digital ground88 XTACN I Oscillation circuit control Self-oscillation when high, oscillation stop when low89 SQSO O Subcode Q 80-bit and PCM peak and level data output, CD TEXT data output90 SQCK I SQSO readout clock input91 SBSO O Subcode P to W serial output92 EXCK I SBSO readout clock input93 XRST I System reset Reset when low94 SYSM I Mute input Muted when high95 D ATA I Serial data input from CPU96 VSS Internal digital ground

44

HCD-RG121

Pin No. Pin Name I/O Description97 XLAT I Latch input from CPU The serial data is latched at the falling edge98 CLOCK I Serial data transfer clock input from CPU99 VDD Internal digital power supply

100 SENS O SENS output to CPU101 SCLK I SENS serial data readout clock input102 ATSK I/O Anti-shock input/output103 WFCK O WFCK output (Not used)104 XUGF O XUGF output (Not used)105 XPCK O XPCK output (Not used)106 GFS O GFS output (Not used)107 C2PO O C2PO output (Not used)108 SCOR O High output when the subcode sync, S0 or S1, is detected109 VDD Internal digital power supply110 C4M O 4 2336MHz output (Not used)111 WDCK O Word clock output f = 2Fs (Not used)112 COUT I/O Track number count signal input/output (Not used)

45

HCD-RG121

IC601 LC876972B-52S2-E (SYSTEM CONTROLLER) (PANEL BOARD)

Pin No. Pin Name I/O Description1 O-MP3 CS O CS output to CD Digital Processor(Not used)2 O-MP3 LP MOTER O Motor signal output3 I-MP3 ACK SOL-B I Motor signal input4 O-MP3 REQ SOL-A O Motor signal output5 I-SCOR I CD Scor input6 O-MP3 RESET O RESET output to CD Digital Processor7 I-BU1924 DATA I Data input(Not used)8 I-BU1924 CLK I Clock input(Not used)9 I-VOLUME-IN1 I Volume signal input from the encoder

10 I-VOLUME-IN2 I Volume signal input from the encoder11 RESET I Reset input12 I-XT1 I Connection for input a crystal resonator13 I-XT2 O Connection for input a crystal resonator14 VSS1 Ground15 CF1 I Connection for input a ceramic resonator16 CF2 O Connection for input a ceramic resonator17 VDD1 Power supply18 I-PROTECT I Power amplifier circuit protection signal input19 WFR/HP/MIC-IN I SubWoofer or Headphone detection signal input20 I-CD ENCODER I Signal input from the CD encoder21 I-CD OPEN/CLOSE I CD tray open switch signal input22 I-TAPE A START I TAPE A switches signal input23 I-TAPE B START I TAPE B switches signal input24 I-STREAM/VACS I Stream/Vacs signal input25 I-KEY 3 I Function key input26 I-KEY 2 I Function key input27 I-KEY 1 I Function key input28 I-SIRDS-IN I Data input from the remote contorol receiver29 I-AC CUT I Power down signal input30 G13 O FL tube grid signal output31 G12 O FL tube grid signal output32 G11 O FL tube grid signal output33 G10 O FL tube grid signal output34 G9 O FL tube grid signal output35 G8 O FL tube grid signal output36 G7 O FL tube grid signal output37 G6 O FL tube grid signal output38 G5 O FL tube grid signal output39 G4 O FL tube grid signal output40 G3 O FL tube grid signal output41 G2 O FL tube grid signal output42 G1 O FL tube grid signal output43 S1 O FL tube segment signal output44 S2 O FL tube segment signal output45 S3 O FL tube segment signal output46 VDD3 Power supply47 S4 O FL tube segment signal output48 S5 O FL tube segment signal output

46

HCD-RG121

Pin No. Pin Name I/O Description49 S6 O FL tube segment signal output50 S7/METER-SW1 O FL tube segment signal output51 -VPP Power supply (-)52 S8/METER-SW2 O FL tube segment signal output53 S9/METER-SW3 O FL tube segment signal output54 S10/SW1 O FL tube segment signal output55 S11/SW2 O FL tube segment signal output56 S12/SW3 O FL tube segment signal output57 S13/SW4 O FL tube segment signal output58 S14/SW5 O FL tube segment signal output59 S15/SW6 O FL tube segment signal output60 S16/SW7 O FL tube segment signal output61 S17/SW8 O FL tube segment signal output62 S18/SW9 O FL tube segment signal output63 S19/SW10 O FL tube segment signal output64 S20 O FL tube segment signal output65 S21 O FL tube segment signal output66 I-SPEC/MODE/METER I METER swich input67 I-TUNED-IN I Tuning a frequency signal input68 I-STEREO-IN I Stereo tuning signal input69 I-ASM-IN I ASM signal input70 I-REEL-A-IN I A deck photo sensor signal input71 I-REEL-B-IN I B deck photo sensor signal input72 VDD4 Power supply73 I-CD Num Senser O Table address sensor swich signal input74 O-POWER-RELAY O POWER RELAY control output75 O-SYSTEM-MUTE O System muting signal output76 O-POWER-LED O POWER LED control signal output77 STREAM-LED6 SOLB O Illumination LED control signal output (Not used)78 STREAM-LED5 SOLA O Illumination LED control signal output (Not used)79 STREAM-LED4 MOTOR O Illumination LED control signal output (Not used)80 STREAM-LED3 MP3-STB O Illumination LED control signal output (Not used)81 STREAM-LED2 O Illumination LED control signal output (Not used)82 STREAM-LED1 O Illumination LED control signal output (Not used)83 I-LC72121 DI I Data input from Tuner84 O-LC72121 CE O Chip select output to Tuner85 O-LC72121/BU2099FV DO O Data input from Tuner and SP Driver86 O-LC72121/BU2099FV CLK O Clock output to Tuner and SP Driver87 O-BU2099FV LCH O LCH output to SP Driver88 O-BD3401 CLK O Clock output to Sound Processor89 VSS2 Ground90 VDD2 Power supply91 O-BD3401 DATA O Data output toSound Processor92 O-XTCN O CD xtcn signal output93 O-XRES(RESET) O CD reset signal output94 O-XLT(CD-LAT) O CD xlt signal output95 O-CD-DATA O CD data output96 I-SENS I CD sens input97 O-CD-CLK O CD clk output98 O-MP3-DO O Clock output to CD Digital Processor (Not used)

47

HCD-RG121

Pin No. Pin Name I/O Description99 I-MP3-DI I Data input from CD Digital Processor(Not used)

100 O-MP3-CLK O Clock output to CD Digital Processor(Not used)

48

HCD-RG121

6-1. MAIN SECTION

SECTION 6EXPLODED VIEWS

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

CD mechanism deck section-1

#1

#1

#2

#1

#1

#1#1

#1

#1

#1

#1

#1

#1

#1

#1

a

a

#2

3

2

121

1

1

1

5

front panelsection

Main board section

4

8

9

notsupplied

notsupplied

notsupplied

notsupplied

#2

notsupplied

notsupplied

bb

10notsupplied

PT902

1 3-363-099-32 SCREW (CASE 3 TP2)2 4-245-183-91 CASE (SIDE-L)3 4-252-196-51 DOOR, CD4 3-038-018-01 EMBLEM, SONY5 4-244-849-91 CASE (TOP)

8 1-769-940-11 WIRE (FLAT TYPE) (11 CORE) (UK)9 1-693-615-11 TUNER (FM/AM) (EXCEPT AEP, UK)9 1-693-616-11 TUNER (FM/AM) (AEP, UK)

10 1-400-285-11 F-BEAD, E2515 MRT12 4-245-184-91 CASE (SIDE-R)

0PT902 X-4956-322-1 SUB TRANS ASSY (EA, MX)0PT902 X-4956-293-1 SUB TRANS ASSY (AEP, UK)0PT902 X-4956-294-1 TRANS ASSY, SUB (SP, E2, E3, E51, AR, AUS)

#1 7-685-647-79 SCREW +BVTP3X10 TYPE2 IT-3#2 7-685-646-79 SCREW +BVTP3X8 TYPE2 IT-3

Note:The components identified by mark 0 ordotted line with mark 0 are critical forsafety.Replace only with part number specified.

NOTE: -XX, -X mean standardized parts, so they may

have some differences from the original one. Items marked * are not stocked since they

are seldom required for routine service. Somedelay should be anticipated when ordering theseitems.

The mechanical parts with no reference num-ber in the exploded views are not supplied.

AbbreviationAR: Argentina modelAUS: Australian ModelE2: 120 V AC Area in E modelE3: 240 V AC Area in E modelE51: Chilean and Peruvian modelEA: Saudi Arabia modelMX: Mexican modelSP: Singapore model

49

HCD-RG121

6-2. FRONT PANEL SECTION

not supplied

not supplied

not supplied

not supplied

not supplied

not supplied

not supplied

not supplied

not supplied

69

68

a

53

51

53

a

52

59

60

61

63

62

54

74

54

54

54

64

6667

65

73

59

not supplied

not supplied

not supplied

not supplied

54

57

58

56

72

55

71

70

not supplied

not supplied

51 4-252-202-01 DOOR (B), CASS52 4-252-201-01 DOOR (A), CASS53 4-238-631-01 TAPE SPRING54 4-951-620-01 SCREW (2.6X8), +BVTP55 4-252-207-01 BUTTON, FF

56 4-252-208-01 BUTTON, FR57 4-252-214-01 KNOB, VOLUME58 X-4956-295-1 RING ASSY, KNOB59 4-224-104-41 DAMPER60 4-252-198-01 WINDOW, DISPLAY (UK)

60 4-252-198-11 WINDOW, DISPLAY (AEP, UK)61 4-231-824-01 CAM (A), HEART62 4-231-836-01 SPRING (HEART CAM-A)63 4-252-195-41 PANEL, FRONT64 1-769-975-11 WIRE (FLAT TYPE) (13 CORE)

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

65 1-769-883-11 WIRE (FLAT TYPE) (7 CORE)66 4-231-841-01 SPRING (HEART CAM-B)67 4-231-825-01 CAM (B), HEART68 4-225-252-01 CUSHION (FOOT)69 1-796-485-51 DECK, MECHANICAL (CWM43FF-05)

70 4-252-200-01 BUTTON COVER71 4-252-206-01 BUTTON, STOP72 4-252-205-01 BUTTON, PLAY73 1-773-317-11 WIRE (FLAT TYPE) (31 CORE) (AEP, UK)74 A-4751-560-A PANEL BOARD, COMPLETE (AEP, UK)

74 A-4751-568-A PANEL BOARD, COMPLETE (MX, AR, E2, E51)74 A-4751-576-A PANEL BOARD, COMPLETE (SP, E3, AUS)74 A-4752-234-A PANEL BOARD, COMPLETE (EA)

50

HCD-RG121

6-3. MAIN BOARD SECTION

not supplied

not supplied

not supplied

104

105

102

103

108

109

#2

101

101 107

107

PT901

#3#4

106

F904F905

F906F907

101 4-242-527-01 S-SCREW, ITC+4-8 R102 A-4751-562-A AMP BOARD, COMPLETE (AEP, UK)102 A-4751-572-A AMP BOARD, COMPLETE (SP, E2, E3, E51)102 A-4752-239-A AMP BOARD, COMPLETE (EA)102 A-4752-245-A AMP BOARD, COMPLETE (AR, AUS)

102 A-4752-256-A AMP BOARD, COMPLETE (MX)0103 1-696-570-11 CORD, POWER (EA)0103 1-696-848-12 CORD, POWER (AUS)0103 1-777-071-83 CORD, POWER (AEP, UK, SP, E51)0103 1-783-941-22 CORD, POWER (AR)

0103 1-827-226-11 CORD, POWER (MX, E2, E3)104 3-703-244-00 BUSHING (2104), CORD (E2, E3)

* 104 3-703-571-12 BUSHING (S)

HCD RG121+Sony+Audio

Documents

khz step87

khz stepother models

khz steprussian model

russian models

tuning interval

kgother models

khzother models

hzdin power output