Sony HCD-GRX3 Service Manual

Sony HCD-GRX3 Service Manual

Mini hi-fi component system

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HCD-GRX3/RX55/R300
SERVICE MANUAL
Ver 1.1 2001. 11
HCD-GRX3/RX55/R300 are the tuner, deck,
CD and amplifier section in MHC-GRX3/
RX55/R300.
AUDIO POWER SPECIFICATIONS:
(U.S.A. model only)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
with 6 Ω loads both channels driven, from 70 – 20,000 Hz; rated 35 W per
channel minimum RMS power, with no more than 0.9% total harmonic
distortion from 250 mW to rated output.
Amplifier section
North American model
Continuous RMS power output
50 W + 50 W (6 Ω at 1 kHz, 10% THD)
Other models
The following measured at AC 110, 220 V 60 Hz;
DIN power output (Rated) 35 W + 35 W (6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
45 W + 45W (6 Ω at 1 kHz, 10% THD)
The following measured at AC 120, 240 V 60 Hz;
DIN power output (Rated) 40 W + 40 W (6 Ω at 1 kHz, DIN)
Continuous RMS power output (Reference)
50 W + 50W (6 Ω at 1 kHz, 10% THD)
Peak music power output (Reference)
600 W
Inputs
MD IN (phone jacks) : voltage 450 mV, impedance 47 kΩ
Outputs
MD OUT (phone jacks) :
voltage 250 mV, impedance 1 kΩ
PHONES (stereo phone jack) :
accepts headphones of 8 Ω or more
accepts impedance of 6 to 16 Ω
SPEAKER :
Sony Corporation
9-922-804-12
2001K1600-1
Home Audio Company
© 2001.11
Published by Sony Engineering Corporation
photo : HCD-GRX3
Model Name Using Similar Mechanism
CD Mechanism Type
CD
Base Unit Type
SECTION
Optical Pick-up Type
Model Name Using Similar Mechanism
TAPE DECK
SECTION
Tape Transpor Mechanism Type
SPECIFICATIONS
CD player section
System
Laser
Laser output
Frequency response
Wavelength
DIGITAL OUT (OPTICAL)
(Square optical connector jack, rear panel)
Wavelength
Output Level
Tape deck section
Recording system
Frequency response
MINI Hi-Fi COMPONENT SYSTEM
US Model
Canadian Model
HCD-RX55
E Model
HCD-GRX3/R300
Australian Model
HCD-GRX3
HCD-G101
CX3
KSM-213BCM
KSS-213B/S-N
NEW
CWB44RR10
Compact disc and digital audio system
Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Max. 44.6 µW*
*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.
20 Hz – 20 kHz (± 0.5 dB)
780 – 790 nm
600 nm
–18 dBm
4 -track 2 -channel stereo
40 – 13,000 Hz (± 3dB), using Sony
TYPE Ι cassette
— Continued on next page —

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Summary of Contents for Sony HCD-GRX3

  • Page 1 4 -track 2 -channel stereo The following measured at AC 120, 240 V 60 Hz; Frequency response 40 – 13,000 Hz (± 3dB), using Sony DIN power output (Rated) 40 W + 40 W (6 Ω at 1 kHz, DIN) TYPE Ι cassette Continuous RMS power output (Reference) 50 W + 50W (6 Ω...
  • Page 2 CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS SAFETY CHECK-OUT 1. GENERAL ................4 After correcting the original service problem, perform the following safety checks before releasing the set to the customer: 2. DISASSEMBLY Check the antenna terminals, metal trim, “metallized” knobs, screws, 2-1. Upper Cover and CD Door ..........5 and all other exposed metal parts for AC leakage.
  • Page 4: General

    SECTION 1 GENERAL LOCATION OF PARTS AND CONTROLS #¡ #º @ª @• @¶ @§ @∞ !¡ @¢ !™ @£ !£ @™ !¢ @¡ !∞ @º !§ !ª !• !¶ !¶ DISC 1 button JOG DIAL !• π (STOP) button DISC 2 button !ª...
  • Page 5: Disassembly

    SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. UPPER COVER AND CD DOOR 4 Upper cover 6 CD door 3 Seven screws 2 Three screws claws 1 Three srews 5 Pull out the CD tray and remove the CD door with releasing craws into the directioin of arrow.
  • Page 6: Main Board

    2-3. MAIN BOARD 1 Five screws 4 Harness (CN08) 5 MAIN board 3 Harness (CN302) 2 Harness (CN701) 2-4. AMP BOARD 4 Three screws 1 Two screws 5 AMP board 2 Three screws 3 Three screws — 6 —...
  • Page 7: Cd Tray

    2-5. CD TRAY 1 Screw 2 Bracket 5 Flat type wire (CN06) 3 Screw 4 Bracket 6 CD tray 2-6. CD DECODER BOARD 3 Flat cable 2 Two screws 6 CD decoder board 4 Flat cable claws 5 Connector 1 Two screws —...
  • Page 8: 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 DOOR Cassette door (Note: Four claws are used.) — 8 —...
  • Page 9: Mechanical Adjustments

    SECTION 3 SECTION 4 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS DECK SECTION 0 dB=0.775V Precaution 1. Clean the following parts with a denatured alcohol-moistened Demagnetize the record/playback head with a head swab: damagnetizer. 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 10 Turn the adjustment screw and check output peaks. If the peaks After the adjustments, apply suitable locking compound to the do not match for L-CH and R-CH, turn the adjustment screw parts adjusted. so that outputs match within 2 dB of peak. Adjustment Location: L-CH peak...
  • Page 11 TUNER SECTION 0 dB=1µV AM Tuning Voltage Adjustment Main board DC voltmeter – 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 12 FM Tracking Adjustment FM Tuned Level Adjustment Procedure: FM RF SSG 75 Ω coaxial FM RF SSG oscilloscope Carrier frequency : 98 MHz FM ANTENNA terminal Modulation : AUDIO 1 kHz, 75 kHz SPEAKER terminal (JK301) (JK101) deviation (100%) FM ANTENNA terminal (JK101) : 28 dB (at 75 Ω...
  • Page 13 RF Level Check CD SECTION oscilloscope CD DECODER board Note: CD Block is basically constructed to operate without TP (RF) adjustment. Therefore, check each item in order given. CN12 (VC) 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 Procedure : when the signal level is low than specified value with the...
  • Page 14: Diagrams

    SECTION 5 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION SW (B) board SW (D) board MOTOR (6P) (S) board SW (C) board MOTOR board MAIN board CD BUTTON board SW (A) board PANEL board CD DECODER board FUSE board AMP board VOLUME board DECK board —...
  • Page 15: Block Diagrams

    HCD-GRX3/RX55/R300 5-2. BLOCK DIAGRAMS — DECK SECTION — SELECTOR IC301 JK301 LINE AMP IC303 HP AMP MD L IC401 IC302 (1/2) R CH LINE JK303 OUT L Q408 PHONES REC/PB MUTE Q301 EQ AMP IC201 Q404 Q417 POWER AMP +12V...
  • Page 16: Cd Section

    HCD-GRX3/RX55/R300 — TUNER/CD SECTION — FM/AM MPX FM FRONT END IC102 L101 IC101 FM ANT T101 Q101 CF101 CF102 10.7MHz 10.7MHz FM IF AM/FM TU L RF IF MUTE DECODER 75Ω IF BUFF R CH L102 JK101 FM RF ANTENNA...
  • Page 17: Ic Block Diagrams

    HCD-GRX3/RX 5-3. IC BLOCK DIAGRAMS IC03 (CD DECORD BOARD) BA5941FP IC01 (CD DECORD BOARD) CXA1782BQ IC201 (MAIN BOARD) TA8189N IC101 (MAIN BOARD) LA1186 IC603 (PANEL BOARD) BU2114 METAL TAPE A CH2/A CH2/B /TAPE B RF IN BYPAS MIX IN VREF SHIFT –...
  • Page 27: Ic Pin Function

    5-13. IC PIN FUNCTION IC601 µPD780205FG (SYSTEM CONTROL) / PANEL BOARD Pin No. Pin Name Description — POWER OUT Power switch output. ON: H, OFF: L S. MUTE OUT System mute output. ON: H, OFF: L TU. MUTE OUT Tuner mute output. ON: H, OFF: L TUNED OUT Surround output.
  • Page 28 Pin No. Pin Name Description SENS Input from CXD2508A SENS Input from CXD2508A FOK. OK: H, Others: L COUNT Input from CXD2508A COUNT — Ground PIC UP Input from CD mechanism pick up switch. Up: L, Others: H PIC DOWN Input from CD mechanism pick down switch.
  • Page 29: Exploded Views

    SECTION 6 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number When indicating parts by reference number, have some differences from the original one. in the exploded views are not supplied. please include the board name.
  • Page 30: Front Panel Section

    4-992-154-01 RUBBER, FOOT 4-210-574-01 WASHER (9Q), VOLUME 4-210-592-01 WINDOW, DISPLAY 4-210-578-01 SPRING, EJECT LEVER 4-210-581-01 HOLDER, CD BUTTON 4-210-575-01 LEVER, EJECT 4-962-708-01 EMBLEM (4-A), SONY 4-210-573-01 HOLDER, EJECT 4-992-131-01 DAMPER (GRY), GEAR 4-210-551-01 PANEL (A), FRONT 4-210-553-01 BUTTON, POWER * 83...
  • Page 31: Cassette Mechanism Deck Section

    6-3. CASSETTE MECHANISM DECK SECTION not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-759-633-11 DECK, MECHANICAL 9-880-890-01 PLUNGER 9-880-883-01 HOLDER HEAD ASSY 9-880-891-01 MODE SW 9-880-884-01 FRAME HEAD 9-880-892-01 SWITCH LEAF...
  • Page 32: Cd Mechanism Deck Section 1

    6-4. CD MECHANISM DECK SECTION 1 M103 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * 201 1-670-801-11 MOTOR BOARD 4-992-183-01 SCREW, RELAY GEAR (B) 3-669-480-11 + PTPWH 2 4-992-174-01 GEAR, CHANGE 4-992-168-01 TRAY, CHANGER BASE 4-992-184-01 WASHER, CHANGE GEAR 4-992-180-01 PLATE, BLIND 4-992-176-01 SPRING, CHANGE GEAR...
  • Page 33: Cd Mechanism Deck Section 2

    6-5. CD MECHANISM DECK SECTION 2 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) 4-992-192-01 SPRING, BRAKE CAM 4-992-190-01 UD-CAM 4-992-193-01 LEVER, SW 4-992-191-01 UD-GEAR * 263 1-670-800-11 SW (D) BOARD 4-992-195-01 MAGNET...
  • Page 34: Base Unit Section (Ksm-213Bcm)

    6-6. BASE UNIT SECTION (KSM-213BCM) not supplied M102 M101 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) ! 308 8-848-379-31 OPTICAL PICK-UP KSS-213B/S-N 4-992-166-01 DAMPER (RED) * 309 1-639-678-12 MOTOR (6P)(S) BOARD 4-992-167-01 SPRING, MECHANICAL BASE...
  • Page 35: Electrical Parts List

    SECTION 7 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms. please include the board name. specified in the diagrams or the components METAL: metal-film resistor The components identified by mark ! or used on the set.
  • Page 36 CD BUTTON CD DECODER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TERMINAL > < RELAY > JK703 1-694-443-11 TERMINAL BOARD RL701 1-515-921-11 RELAY (12V) ************************************************************ < TRANSISTOR > 1-670-443-11 CD BUTTON BOARD Q701 8-729-188-23 TRANSISTOR 2SD882-P **************** Q702 8-729-188-23 TRANSISTOR 2SD882-P...
  • Page 37 CD DECODER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-126-933-11 ELECT 100uF < COIL > C30A 1-164-159-11 CERAMIC 0.1uF 1-162-600-11 CERAMIC 0.0047uF 30% 1-410-509-11 INDUCTOR 10uH 1-162-301-11 CERAMIC 0.0015uF 30% 1-162-306-11 CERAMIC 0.01uF < TRANSISTOR > 1-162-286-31 CERAMIC 220PF 8-729-195-23 TRANSISTOR 2SA952...
  • Page 38 CD DECODER DECK Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-247-721-11 CARBON 4.7K 1/4W F C209 1-126-933-11 ELECT 100uF 1-249-411-11 CARBON 1/4W C210 1-126-933-11 ELECT 100uF 1-247-847-11 CARBON 4.7K 1/4W C211 1-161-054-00 CERAMIC 0.018uF 1-249-427-11 CARBON 6.8K 1/4W F C212...
  • Page 39 DECK Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC502 8-759-916-52 IC SN74HC165AN R233 1-247-863-11 CARBON 1/4W R234 1-247-863-11 CARBON 1/4W < COIL > R235 1-247-847-11 CARBON 4.7K 1/4W R236 1-247-847-11 CARBON 4.7K 1/4W L251 1-416-771-11 COIL (BIAS) R239 1-249-381-11 CARBON 1/4W F...
  • Page 40 FUSE MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-670-445-11 FUSE BOARD C145 1-162-217-31 CERAMIC 56PF C146 1-161-744-00 CERAMIC 0.01uF 250V *********** C148 1-161-494-00 CERAMIC 0.022uF 1-533-293-11 FUSE HOLDER C149 1-161-744-00 CERAMIC 0.01uF 250V C151 1-128-551-11 ELECT 22uF <...
  • Page 41 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C341 1-126-960-11 ELECT C442 1-161-494-00 CERAMIC 0.022uF C342 1-126-960-11 ELECT C445 1-126-962-11 ELECT 3.3uF C343 1-126-963-11 ELECT 4.7uF C446 1-126-962-11 ELECT 3.3uF C344 1-126-963-11 ELECT 4.7uF C447 1-126-964-11 ELECT 10uF C345...
  • Page 42 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks L106 1-412-507-11 INDUCTOR 47uH R126 1-249-417-11 CARBON 1/4W F L107 1-412-507-11 INDUCTOR 47uH R127 1-249-417-11 CARBON 1/4W F L109 1-412-503-11 INDUCTOR 22uH R128 1-247-883-00 CARBON 150K 1/4W L113 1-412-503-11 INDUCTOR 22uH...
  • Page 43 MOTOR (6P)(S) PANEL MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R337 1-247-704-11 CARBON 1/4W F R413 1-247-694-11 CARBON 1/4W F R338 1-247-708-11 CARBON 1/4W F R414 1-247-839-11 CARBON 2.2K 1/4W R339 1-247-897-11 CARBON 560K 1/4W R415 1-247-839-11 CARBON...
  • Page 44 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < CAPACITOR > < IC > C601 1-126-916-11 ELECT 1000uF 6.3V IC601 8-759-540-23 IC uPD78020SGF-043-3BA C602 1-161-494-00 CERAMIC 0.022uF IC602 8-759-275-23 IC BU2092 C603 1-164-159-11 CERAMIC 0.1uF IC603 8-759-473-61 IC BU2114 C604...
  • Page 45 PANEL SENSOR SW (A) SW (B) SW (C) SW (D) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R626 1-247-847-11 CARBON 4.7K 1/4W S606 1-572-647-11 SWITCH, KEY BOARD (TAPE A) R627 1-247-847-11 CARBON 4.7K 1/4W S607 1-572-647-11 SWITCH, KEY BOARD (FUNCTION) R628 1-247-847-11 CARBON...
  • Page 46 HCD-GRX3/RX55/R300 VOLUME Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-670-441-11 VOLUME BOARD 3-862-439-21 MANUAL, INSTRUCTION (FRENCH) (CND) 3-862-439-31 MANUAL, INSTRUCTION (FRENCH/SPANISH) ************** (E,SP,MY,MX,TW) < RESISTOR > 3-862-439-91 MANUAL, INSTRUCTION (CHINESE) (SP,MY,TW) R685 1-249-424-11 CARBON 3.9K...
  • Page 47 HCD-GRX3/RX55/R300 US Model Canadian Model SERVICE MANUAL HCD-RX55 E Model HCD-GRX3/R300 Australian Model HCD-GRX3 CORRECTION-1 Correct your service manual as shown below. Subject : Correction of electrical parts. (ECN-TA803970) (ECN-TA803983) 98L1643-1 Printed in Japan ©1998.12 Sony Corporation Published by Quality Assurance Dept.
  • Page 48 • PARTS LIST Page INCORRECT CORRECT Ref. No. Part No. Description Remarks Part No. Description Remarks 1-126-963-11 ELECT 4.7uF ––––––––––– –––––––––––––––––––––– C04B ––––––––––– –––––––––––––––––––––– 1-126-925-11 ELECT 470uF C07A 1-162-199-31 CERAMIC 10PF 1-162-201-31 CERAMIC 12PF 1-161-494-00 CERAMIC 0.022uF ––––––––––– –––––––––––––––––––––– C23A –––––––––––...
  • Page 49 : Indicates corrected portion (ADDED) (DELETED) (DELETED) (ADDED) (DELETED) (DELETED) (ADDED) — 3 — — 4 —...
  • Page 50 MEMO...
  • Page 51 HCD-GRX3/RX55/R300 US Model Canadian Model HCD-RX55 SERVICE MANUAL E Model HCD-GRX3/R300 Australian Model HCD-GRX3 SUPPLEMENT-1 File this suppulement with the service manual. Subject: ADDITION OF AR MODEL AND CORRECTION OF HCD-R300 (BLACK MODEL) (SPM-00011) • Abbreviation CND : Canadian model...
  • Page 52 PAGE Former Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MECHANICAL PARTS LIST MECHANICAL PARTS LIST 4-210-588-01 DOOR (R), CASSETTE 4-210-588-01 DOOR (R), CASSETTE (EXCEPT R300) 4-211-425-01 DOOR (R), CASSETTE (R300) 4-210-572-01 HOLDER (R), CASSETTE 4-210-572-01 HOLDER (R), CASSETTE (EXCEPT R300) 4-211-433-01 HOLDER (R), CASSETTE (R300) 4-210-587-01 DOOR (L), CASSETTE 4-210-587-01 DOOR (L), CASSETTE (EXCEPT R300)
  • Page 53 HCD-GRX3/RX55/R300 PAGE Former Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ELECTICAL PARTS LIST ELECTICAL PARTS LIST A-4405-480-A MAIN BOARD, COMPLETE (US,CND) A-4405-480-A MAIN BOARD, COMPLETE (US,CND,MX) ********************* ********************* A-4405-482-A MAIN BOARD, COMPLETE A-4405-482-A MAIN BOARD, COMPLETE...
  • Page 54 HCD-GRX3/RX55/R300 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 2001.11...

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