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Sony HCD-C20 Service Manual
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Sony HCD-C20 Service Manual

Sony HCD-C20 Service Manual

Compact disc deck receiver
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SERVICE MANUAL
Ver 1.1 2001. 06
HCD-C20/G202 is the tuner, deck, CD
and amplifier section in MHC-C20/G202.
9-960-868-12
Sony Corporation
Home Audio Company
2001F0200-1
Shinagawa Tec Service Manual Production Group
© 2001.6
HCD-C20/G202
Photo: HCD-C20 (AEP model)
Model Name Using Similar Mechanism
CD
CD Mechanism Type
SECTION
Base Unit Type
Optical Pick-up Type
Model Name Using Similar Mechanism
TAPE
DECK
Tape Transport
SECTION
Mechanism Type
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
— 1 —
US Model
Canadian Model
HCD-G202
AEP Model
UK Model
E Model
Australian Model
HCD-C20
NEW
CX3
KSM-213BCM
KSS-213B/S-N
HCD-H100
DECK-A
TK20FX-SW943-800
DECK-B
TK20FX-SW943-800
— Continued on next page —

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  • Page 1 Ver 1.1 2001. 06 HCD-G202 AEP Model UK Model E Model Australian Model HCD-C20 HCD-C20/G202 is the tuner, deck, CD and amplifier section in MHC-C20/G202. Photo: HCD-C20 (AEP model) Model Name Using Similar Mechanism CD Mechanism Type SECTION Base Unit Type...
  • Page 2 LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. — 2 —...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SERVICING NOTE 1. GENERAL ................4 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 2. DISASSEMBLY 2-1. CD Door ................5 The laser diode in the optical pick-up block may suffer electrostatic 2-2. CD Mechanism Deck ............5 break-down because of the potential difference generated by the 2-3.

  • Page 4: General

    SECTION 1 GENERAL Location of Parts and Controls !¢ !£ !™ !¡ !º !∞ !§ !¶ !• !ª@º@¡ @™ @£ @¢ @∞ @§ @• @¶ #¡ #º @ª 1 Disc tray @º p(stop) button 2 DISC 1 button @¡ CD button 3 DISC 2 button @™...

  • Page 5: Disassembly

    SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 2-1. CD DOOR CD door Two craws 1 Pull out the CD tray and remove the CD door with releasing claws into the direction of arrow. 2-2. CD MECHANISM DECK 1 Two screws (B3x8) 5 CD mechanism deck 7 Harness...

  • Page 6: Front Panel And Main Board

    2-3. FRONT PANEL AND MAIN BOARD 8 Screw (BVTP3x6) 7 Two screws (BVTP3x10) 2 Heat sink cover 1 Three screws 6 Two screws (BVTP2.6x6) (BVTP3x10) !º Screw (BVTP3x10) 4 Connector (CN701) 9 Front panel and Main board 9 Screw (BVTP3x10) HOW TO SET THE POWER CORD 5 Screw...

  • Page 7: Cd Tray

    2-5. CD TRAY 1 Screw (BVTP2.6x8) 2 Bracket 3 Screw (BVTP2.6x8) 4 Bracket 5 CD tray 2-6. CD DECODER BOARD 4 Flat type wire (CN06) 5 Connector (CN05) 2 Two screws (BVTP3x10) 7 CD decoder board 6 Flat type wire (CN01) 3 Two claws 1 Two screws (BVTP3x6)

  • Page 8: Base Unit

    2-7. BASE UNIT 1 Screw (PTPWH3x8) 2 UD-cam Note: When installing, set to 3 Two screws the groove of UD-cam. 4 Base unit — 8 —...

  • Page 9: Mechanical Adjustments

    SECTION 3 SECTION 4 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB=0.775V 1. Clean the following parts with a denatured alcohol-moistened swab: 1. Demagnetize the record/playback head with a head damagnetizer. record/playback heads pinch rollers 2. Do not use a magnetized screwdriver for the adjustments. erase head rubber belts 3.
  • Page 10 Tape Speed Adjustment (Deck A) 2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 2 dB of peak. Procedure: 1. Mode: Playback test tape WS-48B frequency counter...

  • Page 11: Tuner Section (Us, Cnd, E, Sp, My, Mx, Aus Models)

    TUNER SECTION 0 dB=1µV Note: As a FM front end (U1) is difficult to repair if faulty, replace it with new one. (AEP, UK models) AM Tuning Voltage Adjustment DC voltmeter Tuner board (VT) – Procedure: 1. Set the reception frequency of the unit to 530 kHz (10 kHz step) or 531 kHz (9 kHz step).
  • Page 12 FM Tracking Adjustment FM Tuned Level Adjustment (EXCEPT AEP, UK models) FM RF SSG FM RF SSG oscilloscope 75 Ω coaxial – Carrier frequency : 98 MHz SPEAKER terminal Modulation : AUDIO 1 kHz, 75 kHz FM ANTENNA terminal FM ANTENNA terminal (JK101) deviation (100%) (JK101) : 28 dB (at 75 Ω...
  • Page 13 SECTION 5 DIAGRAMS RF Level Check 5-1. CIRCUIT BOARDS LOCATION CD SECTION oscilloscope CD DECODER board Note: 1. CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. TP (RF) 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. CN12 (VC) 3.
  • Page 14 HCD-C20/G202 5-2. BLOCK DIAGRAMS — TUNER SECTION — (US, CND, E, MY, SP, MX, AUS MODELS) L OUT TU L FM/AM MPX IC102 AM IF JK101 CF104 ANTENNA 10.4MHz CF101 CF102 FM IF L101 T101 FM DET 10.7MHz 10.7MHz RF IN...

  • Page 15: Tuner Section (Aep, Uk Models)

    HCD-C20/G202 — TUNER SECTION — (AEP, UK models) L OUT TU L FM/AM MPX IC102 R OUT R CH AM IF JK101 CF104 ANTENNA 10.7MHz CF101 CF102 FM IF L101 10.7MHz 10.7MHz FM DET RF IN IF OUT 1 FM IF...

  • Page 16: Cd Section

    HCD-C20/G202 — CD SECTION — OPTICAL PICK-UP BLOCK DIGITAL SIGNAL PROCESSOR, D/A CONVERTER, DIGITAL FILTER DETECTOR IC04 MIX AMP IC05 NLPWM DIGITAL RF 0 DIGITAL DEMODULATOR INTERFACE CD L FILTER LPWM 1BIT FOCUS/TRACKING SERVO, RF AMP IC01 (1/2) SUB CODE...

  • Page 17: Deck Section

    HCD-C20/G202 — DECK SECTION — PB L CH1/A TAPE B MUTE HP901 Q209 PB HEAD • R CH is omitted R CH MUTE • Signal path SWITCH REC/PLAY : PB (DECK A) Q216 EQ AMP CH1/B IC201 : PB (DECK B)

  • Page 18: Main Section

    HCD-C20/G202 — MAIN SECTION — (US, CND, E, MY, SP, MX, AUS models) INPUT SELECTOR L.P.F POWER AMP IC401 RL501 IC403 IC501 LINE AMP JK501 Q451 SPEAKER TU L STANDBY OVERLOAD TUNER MUTE CONTROL ELECTRICAL CONTROL Q501 - Q503 VOLUME...

  • Page 19: Main Section (Aep, Uk Models)

    HCD-C20/G202 — MAIN SECTION — (AEP, UK models) INPUT SELECTOR POWER AMP IC303 IC301 R-CH JK302 LINE AMP PHONES Q305 TU L JK301 ELECTRICAL CONTROL SPEAKER VOLUME MUTE TUNER Q303 SECTION LED601 STEREO (Page 18) DBFB MUTE BASS POWER ON...

  • Page 20: Power Section

    HCD-C20/G202 — POWER SECTION — (AEP, UK models) — POWER SECTION — (US, CND, E, MY, SP, MX, AUS models) PT302 POWER TRANSFORMER +5V REG +10.5V REG +11.5V REG RECT +10.5V Q321 Q315 D310-D313 MUTE REG CONTROL CONTROL PT302 POWER...
  • Page 21 PHD2 PHD1 TOG1 BAL1 TOG2 BAL2 – – TOG3 BAL3 FE AMP – – – FDFCT RF M – – RF O – – RF I – – FE O – FE M SRCH – – FSET • F SET TA M IN4B BIAS IN...
  • Page 22 DTS3 DTS2 LOCK RPWM NRPWM TEST FIL0 AVSS2 AVSS3 FIL1 XTA0 XTA1 AVDD3 AVSS1 AVDD2 CLTV NLPWM AVDD1 LPWM BIAS DTS1 ASY1 ZEROR ASY0 ZEROL ASYE...
  • Page 23 IC303, 401 LC75392 IC501 STK405-070A LVROUT RVROUT ch.2 – LVRIN RVRIN ch.1 – LTOUT RTOUT – LTCOM RTCOM LATCH DECODER SHIFT REGISTER VREF CONTROL IC502 uPC1237HA OVER LOAD DET MUTE OFFSET DET LATCH AUTORESET AC OFF — PANEL SECTION — IC603 BU2114 SHIFT REGISTER...

  • Page 37: Exploded Views

    SECTION 6 EXPLODED VIEWS NOTE: The components identified by • For detailed German, East European and CIS model • -XX, -X mean standardized parts, so they may have mark ! or dotted line with mark refer to AEP mode. some difference from the original one. ! are critical for safety.

  • Page 38: Front Panel Section

    6-2. FRONT PANEL SECTION LCD601 not supplied not supplied Casssette mechanism deck Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-992-794-01 WINDOW (L), CASSETTE * 71 4-992-818-01 LENS, LED 4-992-792-01 DOOR (L), CASSETTE 4-992-814-01 BUTTON, BASS BOOST 4-992-808-01 HOLDER (L), DOOR 4-992-816-01 BUTTON, PRESET (EQ) 4-992-795-01 WINDOW (R), CASSETTE...

  • Page 39: Cassette Mechanism Deck Section 1

    Ver 1.1 2001.06 6-3. CASSETTE MECHANISM DECK SECTION 1 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-992-133-01 BUTTON, REC 4-992-139-01 BUTTON (B), PLAY 4-992-134-01 BUTTON (A), PLAY 4-992-140-01 BUTTON (B), REW 4-992-135-01 BUTTON (A), REW 4-992-141-01 BUTTON (B), F.F 4-992-136-01 BUTTON (A), F.F 4-992-142-01 BUTTON (B), STOP/EJECT...

  • Page 40: Cassette Mechanism Deck Section 2

    Ver 1.1 2001.06 6-4. CASSETTE MECHANISM DECK SECTION 2 not supplied not supplied M901 SW202 not supplied HE901 SW203 HRP901 supplied not supplied SW204 not supplied HP901 not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No.

  • Page 41: Cd Mechanism Deck Section 1

    6-5. CD MECHANISM DECK SECTION 1 M103 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 201 1-666-451-11 MOTOR BOARD 4-992-183-01 SCREW, RELAY GEAR (B) 3-669-480-11 + PTPWH 2 4-992-168-01 TRAY, CHANGER BASE 4-992-174-01 GEAR, CHANGE 4-992-180-01 PLATE, BLIND 4-992-184-01 WASHER, CHANGE GEAR 4-992-181-01 LEVER, SENSOR (SW)

  • Page 42: Cd Mechanism Deck Section 2

    6-6. CD MECHANISM DECK SECTION 2 not supplied M104 Base unit block Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-769-856-11 WIRE (FLAT TYPE) (5 CORE) 4-992-193-01 LEVER, SW 4-992-190-01 UD-CAM * 263 1-666-450-11 SW (D) BOARD 4-992-191-01 UD-GEAR * 264 1-666-449-11 SW (C) BOARD...

  • Page 43: Base Unit Section (Ksm-213Bcm)

    Ver 1.1 2001.06 6-7. BASE UNIT SECTION (KSM-213BCM) not supplied M102 M101 Les composants identifiés par The components identified by mark ! or dotted line with mark une marque ! sont critiques pour ! are critical for safety. la sécurité. Replace only with part number Ne les remplacer que par une specified.

  • Page 44: Electrical Parts List

    AC SUPPLY SECTION 7 CD DECODER ELECTRICAL PARTS LIST Note: • CAPACITORS • Due to standardization, replacements in the parts list The components identified by uF : µ F may be different from the parts specified in the mark ! or dotted line with mark •...
  • Page 45 CD DECODER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < CONNECTOR > 1-249-438-11 CARBON 1/4W F 1-247-879-11 CARBON 100K 1/4W CN01 1-580-475-11 SOCKET, CONNECTOR 16P 1-247-896-11 CARBON 510K 1/4W 1-247-879-11 CARBON 100K 1/4W CN05 1-564-721-11 PIN, CONNECTOR (SMALL TYPE) 5P CN06 1-695-366-21 PIN, CONNECTOR (PC BOARD) 5P CN09...
  • Page 46 CD DECODER DISC LED MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-249-847-11 CARBON 4.7K 1/4W C204 1-162-292-31 CERAMIC 680PF 1-249-847-11 CARBON 4.7K 1/4W C205 1-162-286-31 CERAMIC 220PF 1-249-405-11 CARBON 1/4W F C206 1-162-286-31 CERAMIC 220PF 1-247-883-00 CARBON 150K...
  • Page 47 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C387 1-126-941-11 ELECT 470uF C321 1-124-903-11 ELECT C322 1-124-907-11 ELECT 10uF C388 1-162-284-31 CERAMIC 150PF C323 1-124-907-11 ELECT 10uF C389 1-162-284-31 CERAMIC 150PF C324 1-124-907-11 ELECT 10uF C325 1-164-159-11 CERAMIC 0.1uF...
  • Page 48 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D212 8-719-987-63 DIODE 1N4148M Q217 8-729-194-57 TRANSISTOR 2SC945-P D213 8-719-987-63 DIODE 1N4148M Q218 8-729-142-46 TRANSISTOR 2SC2001-LK D301 8-719-109-93 DIODE RD6.2ESB2 Q219 8-729-194-57 TRANSISTOR 2SC945-P Q220 8-729-142-46 TRANSISTOR 2SC2001-LK D302 8-719-987-63 DIODE 1N4148M Q301...
  • Page 49 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R232 1-249-420-11 CARBON 1.8K 1/4W F R324 1-247-713-11 CARBON 1/4W F R233 1-247-839-11 CARBON 2.2K 1/4W R325 1-247-871-11 CARBON 1/4W R326 1-247-871-11 CARBON 1/4W R327 1-249-424-11 CARBON 3.9K 1/4W F R234...
  • Page 50 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R386 1-260-094-11 CARBON 1/2W C206 1-162-282-31 CERAMIC 100PF R387 1-260-094-11 CARBON 1/2W C207 1-126-964-11 ELECT 10uF R388 1-249-431-11 CARBON 1/4W C208 1-126-964-11 ELECT 10uF C209 1-130-485-00 MYLAR 0.015uF ! R389 1-208-601-11 WIREWOUND...
  • Page 51 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C427 1-130-486-00 MYLAR 0.018uF C551 1-161-494-00 CERAMIC 0.022uF C428 1-130-486-00 MYLAR 0.018uF C552 1-161-494-00 CERAMIC 0.022uF C429 1-162-284-31 CERAMIC 150PF C553 1-126-044-11 ELECT (E,SP,MY,AUS) C554 1-162-306-11 CERAMIC 0.01uF C430 1-162-284-31 CERAMIC...
  • Page 52 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < DIODE > Q202 8-729-194-57 TRANSISTOR 2SC945-P Q203 8-729-194-57 TRANSISTOR 2SC945-P D201 8-719-987-63 DIODE 1N4148M Q204 8-729-194-57 TRANSISTOR 2SC945-P D202 8-719-987-63 DIODE 1N4148M D203 8-719-987-63 DIODE 1N4148M Q205 8-729-194-57 TRANSISTOR 2SC945-P D205...
  • Page 53 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R263 1-249-417-11 CARBON 1/4W F R204 1-247-889-00 CARBON 270K 1/4W R205 1-249-406-11 CARBON 1/4W F R264 1-247-839-11 CARBON 2.2K 1/4W R206 1-249-406-11 CARBON 1/4W F R265 1-247-847-11 CARBON 4.7K 1/4W R207...
  • Page 54 MAIN MOTOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R461 1-247-704-11 CARBON 1/4W F R559 1-247-839-11 CARBON 2.2K 1/4W R560 1-249-430-11 CARBON 1/4W R462 1-247-879-11 CARBON 100K 1/4W R561 1-249-430-11 CARBON 1/4W R562 1-247-871-11 CARBON 1/4W R463 1-247-871-11 CARBON...
  • Page 55 MOTOR MOTOR (6P) (S) PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < MOTOR > < CONNECTOR > M103 X-4948-765-1 MOTOR ASSY (TURN TABLE) * CN301 1-770-332-11 HOUSING,CONNECTOR(PC BOARD)17P CN601 1-568-838-11 SOCKET, CONNECTOR 21P ************************************************************** <...
  • Page 56 SW (A) SW (B) PANEL R/P SWITCH SENSOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R604 1-247-871-11 CARBON 1/4W S612 1-572-481-11 SWITCH, KEY BOARD (1 KEY)(PRESET –) R605 1-247-871-11 CARBON 1/4W S613 1-572-481-11 SWITCH, KEY BOARD (1 KEY)(MEMORY) S614 1-572-481-11 SWITCH, KEY BOARD (1 KEY)(p) S615...
  • Page 57 Ver 1.1 2001.06 SW (C) SW (D) TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-666-449-11 SW (C) BOARD C151 1-162-285-31 CERAMIC 180PF C152 1-164-736-31 CERAMIC 0.0012uF 10% ************ C153 1-161-494-00 CERAMIC 0.022uF < SWITCH > C154 1-162-306-11 CERAMIC 0.01uF...
  • Page 58 TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L110 1-410-527-11 INDUCTOR 100uH < TRIMMER > L203 1-412-507-11 INDUCTOR 47uH TC102 1-141-304-21 CAP, TRIMMER 10PF < TRANSISTOR > < FRONT END > Q101 8-729-015-41 TRANSISTOR 2SC1675-T1 Q105 8-729-902-80 TRANSISTOR DTA114YS 1-473-755-11 BLOCK (FRONT END)
  • Page 59 TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C148 1-162-294-31 CERAMIC 0.001uF L107 1-408-417-00 INDUCTOR 47uH C149 1-161-494-00 CERAMIC 0.022uF L108 1-408-417-00 INDUCTOR 47uH C150 1-164-159-11 CERAMIC 0.1uF L203 1-410-517-11 INDUCTOR 47uH C151 1-162-301-11 CERAMIC 0.0015uF 30% <...
  • Page 60 HCD-C20/G202 Ver 1.1 2001.06 VOLT. SELECT TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < VARIABLE RESISTOR > ************* HARDWARE LIST SFR101 1-238-600-11 RES, ADJ, CARBON 10K ************* < TRANSFORMER > 7-685-647-79 SCREW +P 3X10 TYPE2 SLIT...
  • Page 61 HCD-C20/G202 MEMO — 113 —...
  • Page 62 HCD-C20/G202 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 2001.06...

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