Sony HCD-GRX20 Service Manual

Sony HCD-GRX20 Service Manual

Mini hi-fi component system

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HCD-GRX20/RXD3
SERVICE MANUAL
Ver 1.2 2003. 05
HCD-GRX20/RXD3 are the tuner, deck, CD
and amplifier section in MHC-GRX20/RXD3.
Amplifier section
European model
DIN power output (Rated)
40 W + 40 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
50 W + 50 W
(6 Ω at 1 kHz, 10%
THD)
Music power output (Reference)
100 W + 100 W
(6 Ω at 1 kHz, 10%
THD)
Other models
The following measured at AC 110, 220 V 60 Hz;
DIN power output (Rated)
45 W + 45 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
50 W + 50 W
(6 Ω at 1 kHz, 10%
THD)
The following measured at AC 120, 240 V 60 Hz;
DIN power output (Rated)
50 W + 50 W
(6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
60 W + 60 W
(6 Ω at 1 kHz, 10%
THD)
Inputs
MD IN (phono jack):
voltage 450 mV,
impedance 47 kΩ
Sony Corporation
9-928-949-13
2003E16-1
Home Audio Company
© 2003.05
Published by Sony Engineering Corporation
PHOTO : HCD-RXD3
Model Name Using Similar Mechanism
CD Mechanism Type
CD
Base Unit Type
SECTION
Optical Pick-up Type
TAPE
Model Name Using Similar Mechanism
DECK
Tape Transport Mechanism Type
SECTION
SPECIFICATIONS
Outputs
MD OUT (phono jacks):
voltage 250 mV
impedance 1 kΩ
PHONES (stereo phone jack):
accepts headphones of 8
Ω or more.
SPEAKER:
accepts impedance of 6
to 16 Ω
CD player section
System
Compact disc and digital
audio system
Laser
Semiconductor laser
(λ = 780 nm)
Emission duration:
continuous
Laser output
Max. 44.6µW*
*This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up
Block with 7 mm
aperture.
Frequency response
20Hz – 20kHz (±0.5 dB)
Wavelength
780 – 790 nm
MINI Hi-Fi COMPONENT SYSTEM
AEP Model
UK Model
HCD-RXD3
E Model
Australian Model
HCD-GRX20
NEW
CX3
KSM-213ECM
KSS-213ECM/C2NP
NEW
CWL-44-FR
DIGITAL OUT (OPTICAL)
(Square optical connector jack, rear panel)
Wavelength
600 nm
Output Level
–18 dBm
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
Wow and flutter
±0.15% W. Peak(IEC)
0.1% W. RMS(NAB)
±0.2% W. Peak(DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tunr section
Tuning range
87.5 – 108.0 MHz
Antenna
FM lead antenna
75 Ω unbalanced
Antenna terminals
Intermediate frequency
10.7 MHz
— Continued on next page —

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  • Page 1 AEP Model UK Model Ver 1.2 2003. 05 HCD-RXD3 E Model Australian Model HCD-GRX20 HCD-GRX20/RXD3 are the tuner, deck, CD PHOTO : HCD-RXD3 and amplifier section in MHC-GRX20/RXD3. Model Name Using Similar Mechanism CD Mechanism Type Base Unit Type KSM-213ECM...
  • Page 2 COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. GENERAL ·········································································· 4 2. DISASSEMBLY 2-1. CD Door ············································································· 5 2-2. Front Panel ········································································· 6 2-3. Main Board ········································································· 6 2-4. Amplifier Board ································································· 7 2-5. CD Tray ·············································································· 7 2-6. Decord Board ····································································· 8 2-7. Base Unit ············································································ 9 2-8.
  • Page 4: General

    SECTION 1 GENERAL !º !¡ #£ !™ #™ !£ #¡ !¢ !∞ #º !§ !¶ @ª !• @• @¶ !ª @º @§ @¡ @∞ @¢ @£ @™ !¶ 1/u (Power) button 6 OPEN/CLOSE button !• TIMER SELECT button DISC SKIP/EX-CHANGE button !ª...
  • Page 5: Disassembly

    SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CD DOOR 5 Top cover 2 Three screws 3 Five screws 4 Remove the claws 8 CD door 1 Three srews 7 Remove the claws 4 Remove the claws 6 Pull out the CD tray and remove the...
  • Page 6: Front Panel

    2-2. FRONT PANEL MAIN board 9 Board to board connectors (CN602) (CN601) 2 Screw 3 Harness (CN303) !º Front panel 4 Flat type wire (CN705) 5 Flat type wire (CN501) 6 Connector (to deckB) 8 Remove the claws 1 Three screws 7 Connector (CN201) 2-3.
  • Page 7: Amplifier Board

    2-4. AMPLIFIER BOARD 9 Three screws 6 Rear cover 8 Three screws 2 Two screws !º AMPLIFIER board 1 Connector (CN703) 3 Three screws 5 Remove the claws 4 Two screws 7 Three screws 2-5. CD TRAY 1 Screw 2 Bracket 5 Flat type wire (CN06) 3 Screw...
  • Page 8: Decord Board

    2-6. DECORD BOARD 4 Three screws 3 Flat cable (CN701) 6 CD decode board 1 Flat cable (CN706) 2 Connector (CN707) 5 Connector (CN702)
  • Page 9: Base Unit

    2-7. BASE UNIT 4 Screw 2 Screw 3 UD-gear 5 UD-Cam 7 Spring 6 Spring 8 Spring 1 Two screws 9 Base unit 2-8. CASSETTE LID Cassette door (Note: Four claws are used.)
  • Page 10: Test Mode

    SECTION 3 TEST MODE Function Key combination Description CD service mode STOP + OPEN/CLOSE The message “CD S - -” is displayed on the screen. The sled is moved to the outer circumference Initialization while the FF button is pressed. Also, the SLED is moved to the STOP + POWER OFF All preset data is re-set to the initial inner (default) value.
  • Page 11: Mechanical Adjustments

    SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB=0.775V 1. Clean the following parts with a denatured alcohol-moistened Demagnetize the record/playback head with a head swab: demagnetizer. record/playback head pinch rollers Do not use a magnetized screwdriver for the adjustments. erase head rubber belts After the adjustments, apply suitable locking compound to the...
  • Page 12 Mode: Playback Tape Speed Adjustment (Deck A) test tape Procedure: SPEAKER P-4-A100 Mode: Playback terminal (JK401) (10kHz, –10dB) (L-CH) oscilloscope test tape WS-48B frequency counter (3kHz, 0dB) – SPEAKER SPEAKER terminal (JK401) terminal (JK401) (R-CH) Waveform of oscilloscope Adjust the SFR501 so that the frequency counter reads 3,000 Hz ±...
  • Page 13 TUNER SECTION 0 dB=1µV AM Tuning Voltage Adjustment DC voltmeter Main board – Procedure: Set the reception frequency of the unit to 530 kHz. Adjust L105 for 1.2 ± 0.05 V reading on the DC voltmeter. Set the reception frequency of the unit to 1,710 kHz. Confirm that the voltage reading on the DC voltmeter is within 8.0 ±...
  • Page 14 FM Tuned Level Adjustment FM RF SSG 75 Ω coaxial Carrier frequency : 98 MHz Modulation : AUDIO 1 kHz, 75 kHz FM ANTENNA terminal deviation (100%) (JK101) Output level : 28 dB (at 75 W open) Procedure: Supply a 28 dB 98 MHz signal from the ANTENNA terminal. Tune the set to 98 MHz.
  • Page 15 CD SECTION Note: CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. Use an oscilloscope with more than 10MΩ impedance. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.
  • Page 16: Diagrams

    SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION SW (B) board SW (D) board MOTOR (6P) (S) board SW (C) board MOTOR board MAIN board PHOTO SOCKET board SW (A) board CD DECORD board SENSOR board TR board H/P board AC SWITCH board FUSE board VR board AMPLIFIER board...
  • Page 17: Block Diagrams

    HCD-GRX20/RXD3 6-2. BLOCK DIAGRAMS MAIN SECTION CD L JK301 SECTION JK301 (Page 18) LINE AMP LINE OUT IC301 Q551 R CH Q320 POWER AMP CD (L) MUTE REC/PB IC401 EQ AMP R CH IC201 RL401 MD (L) VOL OUT JK401...
  • Page 18: Tuner/Cd Section

    HCD-GRX20/RXD3 TUNER/CD SECTION FM/AM MPX FM FRONT END IC102 FE101 Q101 CF101 CF102 TU L 10.7MHz RF IF 10.7MHz FM IF AM/FM MUTE DECODER 75Ω IF BUFF R CH JK101 ANTENNA Q117 CF104 FM DET MUTE 10.7MHz • RCH is omitted FM OUT •...
  • Page 19 HCD-GRX20/RXD3 • WAVEFORM THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each — BD SECTION — — PANEL SECTION — block.) IC701 #£ (PLAY MODE) IC601 $º (X' TAL) IC702 $ª...
  • Page 20: Printed Wiring Board Main Section

    HCD-GRX20/RXD3 6-3. PRINTED WIRING BOARD MAIN SECTION • Refer to page 16 for Circit Boards Location. • Refer to page 19 for Note on Printed Wiring Board. • Semiconductor Location FRONT BOARD DECK B Ref. No. Location MAIN BOARD CN602...
  • Page 21: Schematic Diagram Main (1/3) Section

    HCD-GRX20/RXD3 6-4. SCHEMATIC DIAGRAM MAIN (1/3) SECTION • Refer to page 19 for Waveforms. • Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram. E,AUS,SP,TW MODEL 0.47µ 0.047µ 0.047µ L109 22µH C186 0.001µ...
  • Page 22: Schematic Diagram Main (2/3) Section

    HCD-GRX20/RXD3 Ver 1.1 2001.11 6-5. SCHEMATIC DIAGRAM MAIN (2/3) SECTION • Refer to page 19 for Waveforms. • Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram. 0.018µ 22µ TC74HC4094AP 0.018 0.0012...
  • Page 23: Schematic Diagram Main (3/3) Section

    HCD-GRX20/RXD3 6-6. SCHEMATIC DIAGRAM MAIN (3/3) SECTION • Refer to page 33 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram. R333 R341 R336 D302 UZ6.2B C363 R358 C351 47µ C352...
  • Page 24: Printed Wiring Board Front Panel Section

    HCD-GRX20/RXD3 6-7. PRINTED WIRING BOARD FRONT PANEL SECTION • Refer to page 16 for Circuit Boards Location. • Refer to page 19 for Note on Printed Wiring Board. SENSOR BOARD C600 RM601 FRONT BOARD RA603 RA602 RA601 RA604 CN604 FLD601...
  • Page 25: Schematic Diagram Front Panel Section

    HCD-GRX20/RXD3 6-8. SCHEMATIC DIAGRAM FRONT PANEL SECTION • Refer to page 19 for Waveforms. • Refer to page 30 for IC Pin Function. • Refer to page 19 for Note on Schematic Diagram. SPS-447-1 0.022 6.3V 2SA733 82040 0.01 EXCEPT MX MODEL 0.01...
  • Page 26: Printed Wiring Board Amplifier Section

    HCD-GRX20/RXD3 6-9. PRINTED WIRING BOARD AMPLIFIER SECTION • Refer to page 16 for Circuit Boards Location. • Refer to page 19 for Note on Printed Wiring Board. JK401 TR BOARD SPEAKER Q701 T001 GRX20:E,SP,TW,MX,AR MODEL POWER TRANSFORMER AC SWITCH BOARD...
  • Page 27: Schematic Diagram Amplifier Section

    HCD-GRX20/RXD3 • Refer to page 19 for Note on Schematic Diagram. 6-10. SCHEMATIC DIAGRAM AMPLIFIER SECTION R444 GRX20 MODEL J475 RXD3 MODEL -070E RXD3 MODEL J746 GRX20 MODEL 0.022 (CHASSIS) 100µ 50V : 100µ 50V : EXCEPT AUS MODEL EXCEPT AUS MODEL GRX20 : AUS, RXD3 MODELS 100µ...
  • Page 28: Printed Wiring Board Cd Section

    HCD-GRX20/RXD3 6-11. PRINTED WIRING BOARD CD SECTION • Refer to page 16 for Circuit Boards Location. • Refer to page 19 for Note on Printed Wiring Board. • Semiconductor Location SW (D) BOARD SW (C) BOARD Ref. No. Location CN16...
  • Page 29: Schematic Diagram Cd Section

    HCD-GRX20/RXD3 6-12. SCHEMATIC DIAGRAM CD SECTION • Refer to page 19 for Waveforms. • Refer to page 31,32 for IC Block Diagrams. • Refer to page 19 for Note on Schematic Diagram.
  • Page 30: Ic Pin Function

    HCD-GRX20/RXD3 6-13. IC PIN FUNCTION IC601 CXP82040-108Q(SYSTEM CONTROL) FRONT BOARD Pin No. Pin Name Description Pin No. Pin Name Description 2G,1G FLD grid output. TRAY C. SW Tray close switch signal input. — Not used. VR UP Volume up signal input.
  • Page 31: Ic Block Diagrams

    6-14. IC BLOCK DIAGRAMS — CD DECORD SECTION — IC701 CXA1992BR 33 32 31 30 PD 2 PD 1 I-V AMP I-V AMP RF SUMMING FOCUS OK COMPARATOR LASER POWER CONTROL IFB1 – IFB6 PEAK/BOTTOM MIRR HOLD COMPARATOR ↓ DEFECT PEAK/BOTTOM BIAS HOLD...
  • Page 32 IC702 CXD2589Q 25 26 47 49 54 56 50 39 41 55 40 42 44 62 TES1 TEST XRST Clock Error Generator RMUT Corrector LMUT Serial In demoduretor Interface Interface ASYI XTAI Asymmetry Timing ASYO Corrector XTAO Logic BIAS Over Sampling Digital Filter XPCK FILO...
  • Page 33 — MAIN BOARD — IC103 LC72131 PHASE DETECTOR CHARGE PUMP POWER REFERENCE UNLOCK DIVIDER DETECTOR RESET SWALLOW COUNTER 1/16, 1/17 4BITS 12BITS PROGRAMMABLE DRIVER UNIVERSAL DATA SHIFT REGISTER LATCH INTERFACE COUNTER 2 3 4 5 6 7 8 9 IC201 TA8189N METAL TAPE A...
  • Page 34: Front Board

    IC252 74HC165 PARALLEL INPUTS CLOCK SERIAL OUTPUT INHIBIT INPUT CLOCK SERIAL INHIBIT SHIFT/ LOAD SHIFT/ CLOCK OUTPUT LOAD PARALLEL INPUTS IC301 M62439SP REC OUT2 INA2 INB2 INC2 IND2 TONEH2 TONEL2 OUT2 CONT CONTROL LOGIC REC OUT1 INA1 INB1 INC1 IND1 TONEH1 TONEL1 OUT1...
  • Page 35: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Hardware (# mark) list and accessories and The components identified by mark ! or have some differences from the original one. packing materials are given in the last of this dotted line with mark ! are critical for safety.
  • Page 36: Front Panel Section

    7-2. FRONT PANEL SECTION not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4411-712-A PANEL ASSY, FRONT (GRX20:AUS/RXD3) 1-674-561-11 VR BOARD A-4411-741-A PANEL ASSY, FRONT (GRX20:SP,TW) 4-220-805-01 BUTTON, FUNCTION A-4411-739-A PANEL ASSY, FRONT (GRX20:AR,E) 4-220-617-01 LENS(A), BUTTON A-4411-740-A PANEL ASSY, FRONT (GRX20:MX)
  • Page 37: Cd Mechanism Deck Section-1

    7-3. CD MECHANISM DECK SECTION-1 M103 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-674-792-11 MOTOR BOARD 4-992-183-01 SCREW, RELAY GEAR (B) 4-221-891-01 BASE CHANGER 4-992-174-01 GEAR, CHANGE 4-221-895-01 SHEET, BLIND 4-992-184-01 WASHER, CHANGE GEAR 4-221-896-01 LEVER, SENSOR (SW) 4-992-176-01 SPRING, CHANGE GEAR 4-992-182-01 SPRING, SENSOR (SW) LEVER 4-992-185-01 WASHER, CHANGE PLATE...
  • Page 38: Cd Mechanism Deck Section-2

    Ver 1.2 2003.05 7-4. CD MECHANISM DECK SECTION-2 not supplied not supplied M104 Base unit block Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-769-856-11 WIRE (FLAT TYPE) (5 CORE) 1-674-791-11 SW (D) BOARD 4-221-897-01 UD-CAM 1-674-790-11 SW (C) BOARD 4-992-191-01 UD-GEAR 4-221-898-01 HOLDER, MAGNET...
  • Page 39: Base Unit Section (Ksm-213Ecm)

    7-5. BASE UNIT SECTION (KSM-213ECM) not supplied M101 M102 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-992-164-01 BASE, KSM MECHANICAL 2-627-003-02 GEAR (B) 4-992-165-01 DAMPER (GREEN) 1-639-678-12 MOTOR (6P)(S) BOARD 4-992-166-01 DAMPER (RED) 1-783-740-11 WIRE (FLAT TYPE) 4-992-167-01 SPRING, MECHANICAL BASE ! 211 8-820-054-03 OPTICAL PICK-UP KSS-213ECM/C2NP...
  • Page 40: Electrical Parts List

    AC SWITCH SECTION 8 ELECTRICAL PARTS LIST AMPLIFIER NOTE: • Due to standardization, replacements in the • RESISTORS • SEMICONDUCTORS parts list may be different from the parts All resistors are in ohms. In each case, u: µ, for example: specified in the diagrams or the components METAL: metal-film resistor uA...: µA...
  • Page 41 AMPLIFIER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C732 1-161-494-00 CERAMIC 0.022uF Q703 8-729-202-67 TRANSISTOR 2SK246-GR3 C733 1-104-664-11 ELECT 47uF Q704 8-729-202-67 TRANSISTOR 2SK246-GR3 C734 1-126-934-11 ELECT 220uF Q705 8-729-232-32 TRANSISTOR 2SA965-O/Y(TPE6) C735 1-161-494-00 CERAMIC 0.022uF C751 1-126-967-11 ELECT...
  • Page 42 AMPLIFIER CD DECORD Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R710 1-215-892-11 METAL OXIDE C752 1-126-964-11 ELECT 10uF R712 1-249-413-11 CARBON 1/4W F C753 1-161-494-00 CERAMIC 0.022uF R751 1-247-839-11 CARBON 2.2K 1/4W C754 1-104-665-11 ELECT 100uF R752 1-247-863-11 CARBON...
  • Page 43 CD DECORD Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < IC > R746 1-249-432-11 CARBON 1/4W R747 1-249-432-11 CARBON 1/4W IC701 8-752-082-14 IC CXA1992BR R747A 1-247-855-11 CARBON 1/4W IC702 8-752-384-13 IC CXD2589Q R748 1-247-847-11 CARBON 4.7K 1/4W IC703...
  • Page 44 FRONT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4426-056-A FRONT BOARD, COMPLETE(GRX20:AUS/RXD3) D614 8-719-911-19 DIODE 1SS133T-72 D616 8-719-911-19 DIODE 1SS133T-72 ********************** A-4426-289-A FRONT BOARD, COMPLETE (GRX20:AR,E) (GRX20:AR,AUS,E,SP,TW/RXD3) D617 8-719-911-19 DIODE 1SS133T-72 ********************** A-4426-290-A FRONT BOARD, COMPLETE (GRX20:MX) (GRX20:AR,AUS,E,SP,TW/RXD3) D618 8-719-911-19 DIODE 1SS133T-72 (GRX20:AR,E,MX)
  • Page 45 FRONT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > R662 1-249-416-11 CARBON 1/4W F R663 1-249-418-11 CARBON 1.2K 1/4W F R600 1-249-407-11 CARBON 1/4W F R664 1-247-835-11 CARBON 1.5K 1/4W R600A 1-249-417-11 CARBON 1/4W F R665 1-247-839-11 CARBON...
  • Page 46 FRONT FUSE MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks S616 1-572-647-11 SWITCH, KEY BOARD (REC) C121 1-162-203-31 CERAMIC 15PF S617 1-572-647-11 SWITCH, KEY BOARD (PAUSE) C122 1-126-960-11 ELECT S618 1-572-647-11 SWITCH, KEY BOARD (CD SYNC) C123 1-126-959-11 ELECT 0.47uF...
  • Page 47 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C203 1-162-292-31 CERAMIC 680PF C327 1-126-933-11 ELECT 100uF C204 1-162-292-31 CERAMIC 680PF C331 1-126-961-11 ELECT 2.2uF C205 1-162-286-31 CERAMIC 220PF C332 1-126-961-11 ELECT 2.2uF C206 1-162-286-31 CERAMIC 220PF C333 1-104-664-11 ELECT...
  • Page 48 Ver 1.1 2001.11 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < DIODE > Q201 8-729-194-57 TRANSISTOR 2SC945TP-P D101 8-719-991-33 DIODE 1SS133T-77 Q202 8-729-194-57 TRANSISTOR 2SC945TP-P D102 8-719-991-33 DIODE 1SS133T-77 Q203 8-729-194-57 TRANSISTOR 2SC945TP-P D103 8-719-991-33 DIODE 1SS133T-77 Q204 8-729-194-57 TRANSISTOR 2SC945TP-P...
  • Page 49 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R133 1-247-849-11 CARBON 5.6K 1/4W R241 1-247-847-11 CARBON 4.7K 1/4W R134 1-247-855-11 CARBON 1/4W R242 1-247-847-11 CARBON 4.7K 1/4W R135 1-249-417-11 CARBON 1/4W F R243 1-249-430-11 CARBON 1/4W R136 1-247-879-11 CARBON...
  • Page 50 MAIN MOTOR MOTOR (6P) (S) PHOTO SOCKET Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R363 1-249-418-11 CARBON 1.2K 1/4W F < TRANSFORMER > R364 1-249-418-11 CARBON 1.2K 1/4W F R365 1-247-839-11 CARBON 2.2K 1/4W T102 1-429-554-11 TRANSFORMER, AM IFT R366 1-247-839-11 CARBON...
  • Page 51 SENSOR SW (A) SW (B) SW (C) SW (D) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-674-556-11 SENSOR BOARD MISCELLANEOUS ************* ************** < CAPACITOR > 1-551-506-99 CORD, POWER (GRX20:E,MX) 1-555-795-00 CORD, POWER C600 1-126-964-11 ELECT 10uF (GRX20:SP,TW/RXD3:AED,AEP,CIS,G) 1-696-572-21 CORD, POWER (RXD3:UK)
  • Page 52 HCD-GRX20/RXD3 AEP Model UK Model HCD-RXD3 SERVICE MANUAL E Model Australian Model HCD-GRX20 SUPPLEMENT-1 File this supplement with the service manual. Subject: 1. PARTS CHANGED (IC601) 2. ADDITION OF KR MODEL...
  • Page 53 1. PARTS CHANGED Page Former Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ELECTRICAL PARTS LIST ELECTRICAL PARTS LIST A-4426-056-A FRONT BOARD, COMPLETE A-4426-056-A FRONT BOARD, COMPLETE ********************** ********************** (GRX20: AUS/RXD3) (GRX20: AUS, KR/RXD3) < IC > <...
  • Page 54 Page Former Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ELECTRICAL PARTS LIST ELECTRICAL PARTS LIST A-4426-056-A FRONT BOARD, COMPLETE A-4426-056-A FRONT BOARD, COMPLETE ********************** ********************** (GRX20: AUS/RXD3) (GRX20: AUS, KR/RXD3) < DIODE > <DIODE> D612 8-719-911-19 DIODE 1SS133T-72 D612...
  • Page 55 HCD-GRX20/RXD3 AEP Model UK Model SERVICE MANUAL HCD-RXD3 E Model Australian Model HCD-GRX20 SUPPLEMENT-2 File this supplement with the service manual. Subject: 1.PART CHANGE (WIRE LENGTH OF THE B/D BLOCKS IS CHANGED) 2.CORRECTION OF FRONT PANEL SECTION 1.PARTS CHANGED Page FORMER Ref.
  • Page 56 HCD-GRX20/RXD3 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 1999.05...

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