Sony HCD-BX7 Service Manual
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Sony HCD-BX7 Service Manual

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HCD-BX7/DX7/DX7J
SERVICE MANUAL
HCD-BX7/DX7/DX7J is the tuner, deck, CD and
amplifier section in MHC-BX7/DX7/DX7J.
Photo: HCD-DX7
Model Name Using Similar Mechanism
CD
CD Mechanism Type
SECTION
Base Unit Type
Optical Pick-up Type
Model Name Using Similar Mechanism
TAPE DECK
SECTION
Tape Transport Mechanism Type
SPECIFICATIONS
COMPACT DISC DECK RECEIVER
US Model
Canadian Model
AEP Model
UK Model
HCD-BX7
E Model
HCD-DX7/DX7J
Australian Model
HCD-DX7
NEW
CDM58-K2BD38
BU-K2BD38
KSS-213DP
NEW
TCM-230MWR11
— Continued on next page —
1

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Summary of Contents for Sony HCD-BX7

  • Page 1 Canadian Model AEP Model UK Model HCD-BX7 E Model HCD-DX7/DX7J Australian Model HCD-DX7 HCD-BX7/DX7/DX7J is the tuner, deck, CD and amplifier section in MHC-BX7/DX7/DX7J. Photo: HCD-DX7 Model Name Using Similar Mechanism CD Mechanism Type CDM58-K2BD38 SECTION Base Unit Type BU-K2BD38...
  • Page 2 SAFETY CHECK-OUT (US model only) After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. SERVICE NOTE ······························································· 4 The laser diode in the optical pick-up block may suffer electrostatic 2. GENERAL ·········································································· 5 break-down because of the potential difference generated by the charged electrostatic load, etc.

  • Page 4: Service Note

    SECTION 1 SERVICE NOTE Note for installing the panel board 2 Panel board Hot melt Screw hole 1 Cut the eleven melted-connection points with a cutting plier. Attach the panel board with six screws (+BVTP 2.6 × 8 ) after the board is removed once. Do not tighten the screws excessively.

  • Page 5: General

    SECTION 2 GENERAL 2 3 4 Photo: HCD-BX7 DISC SKIP EX-CHANGE button MIC jack (DX7, DX7J model) DISC 1 button and indicator MIC LEVEL knob (DX7, DX7J model) DISC 2 button and indicator V-GROOVE button and indicator DISC 3 button and indicator...
  • Page 6 This section is extracted from instruction manual.

  • Page 7: Disassembly

    SECTION 3 DISASSEMBY Note : Follow the disassembly procedure in the numerical order given. 9Two screws (+BVTP 3 × 10) Upper case (Top) 3-1. UPPER CASE (TOP) 5Two screws (Case) 7Two screws (+BVTP 3 × 10) Claw Side panel R Side panel L 6Screw (Case) 3Two screws...
  • Page 8 3-3. FRONT PANEL SECTION 8Connector (CN201) CD mechanism deck (CDM58) 4Screw (+BVTP 3 × 10) Connector (CN601) 1Flat type wire (CN304) 5Screw (+BVTP 3 × 10) 2Connector (CN1) 9Connector (CN202) 3Connector (CN2) Front panel section 6Three screws (+BVTT 3 × 6) 3-4.
  • Page 9 3-5. PANEL BOARD 8Three claws 7Two screws (+BVTP 2.6 × 8) 9CD Switch board VCD Switch board 2Two screws qsPanel board (+BVTP 2.6 × 8) qaFive claws 3Two bosses & four pins 5FR knob q;Cut the eleven melted-connection points with a cutting plier. 4Bracket (FR) Note: When attching the panel board, refer to "Service Note"...
  • Page 10 3-7. MAIN BOARD AND AMP BOARD 4Three screws (+BVTP 3 × 8) 7Heat sink 6Two screws (+BVTP 3 × 8) 5Power AMP board Connector(CN502) 3Two screws (+BVTP 3 × 16) Connector (CN503) 2Main board 1Two screws (+BVTP 3 × 8) 3-8.
  • Page 11 3-9. BASE UNIT 4Two insulators Base unit 1Flat type wire (CN101) 5Two insulators 2Four screws (+PTPWH 2.6) 3-10. DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD 9Screw (+PTPWH 2.6 × 8) 4Three screws (+BVTP 2.6 × 8) 6Motor board 7Flat type wire (CN721) 5Remove the two solderings of motor.

  • Page 12: Test Mode

    SECTION 4 TEST MODE [MC Cold Reset] [Change-over of MW Tuner Step between 9 kHz and • The cold reset clears all data including preset data stored in the 10 kHz] RAM to initial conditions. Execute this mode when returning •...
  • Page 13 [MC Test Mode] • This mode is used to check operations of the respective sections of Amplifier, Tuner, CD and Tape. Procedure: Press the ?/1 button to turn on the set. Press the three buttons of x , ENTER and DISC 3 simultaneously.
  • Page 14 [Aging Mode] This mode can be used for operation check of CD section and tape deck section. • If an error occurred: The aging operation stops and display status. • If no error occurs: The aging operation continues repeatedly. 1. Operating method of Aging Mode Turn on the main power and select “CD”...
  • Page 15 2) Operation during aging mode In the aging mode, the program is executed in the following sequence. (1) The disc tray opens and closes. (2) The mechanism accesses DISC 2 and makes an attempt to read TOC. However, since there are no discs, a message “CD2 NO DISC”...

  • Page 16: Mechanical Adjustments

    SECTION 5 SECTION 6 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB=0.775 V 1. Clean the following parts with a denatured alcohol-moistened swab: 1. Demagnetize the record/playback head with a head record/playback heads pinch rollers demagnetizer. erase head rubber belts 2.
  • Page 17 2. Turn the adjustment screw and check output peaks. If the peaks DECK B Tape Speed Adjustment do not match for L-CH and R-CH, turn the adjustment screw Note: Start the Tape Speed adjustment as below after setting to the test so that outputs match within 1dB of peak.
  • Page 18 DECK B REC Bias Adjustment 4. Mode: Record Procedure: INTRODUCTION MD/VIDEO (AUDIO) IN When set to the test mode performed in Tape Speed Adjustment, 315 Hz, 50 mV (–23.8 dB) AF OSC when the tape is rewound after recording, the “REC memory mode” blank tape 600 Ω...
  • Page 19 FM Tuned Level Adjustment CD SECTION FM RF SSG Note : 1. CD Block is basically designed to operate without adjustment. 75 Ω coaxial Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10MΩ impedance. 4.
  • Page 20 MEMO...

  • Page 21: Diagrams

    HCD-BX7/DX7/DX7J SECTION 7 DIAGRAMS 7-1. CIRCUIT BOARD LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) MOTOR Board DRIVER Board Note on Schematic Diagram: Note on Printed Wiring Boards: •...

  • Page 22: Block Diagrams

    HCD-BX7/DX7/DX7J 7-2. BLOCK DIAGRAMS DX7,DX7J MODEL AM/FM IF MPX TM601 LPF601 FE601 Q602 IC601 – TUNER/CD SECTION – CF601 CF602 RF IF BUFFER L-CH • RCH is omitted ANT IN IF OUT FM IF L OUT Q611 • Signal Path FM 75Ω...
  • Page 23 HCD-BX7/DX7/DX7J – MAIN SECTION – J102 SURROUND SPEAKER R CH INPUT SELECT TONE/VOL CONT IC101 IC102 IC501 TM801 TUNER L-CH SECTION IN2A VOL OUT2 POWER (Page 22) SPEAKER Q504,505 Q861 Q821,822 RY801 Q824,825 R CH LOUT MUTE MUTE MUTE MUTE...

  • Page 24: Printed Wiring Board - Bd Section

    HCD-BX7/DX7/DX7J 7-3. PRINTED WIRING BOARD – BD SECTION – • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location IC101 IC102 IC103 Q101 (Page 26)

  • Page 25: Schematic Diagram - Bd Section

    HCD-BX7/DX7/DX7J 7-4. SCHEMATIC DIAGRAM – BD SECTION – • See page 21 for Wavefoms. • See page 46 for IC Block Diagrams. (Page 29) The components identified by Les composants identifiés par mark 0 or dotted line with mark une marque 0 sont critiques 0 are critical for safety.

  • Page 26: Printed Wiring Board - Main Section

    HCD-BX7/DX7/DX7J 7-5. PRINTED WIRING BOARD – MAIN SECTION – • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location (Page 24) (Page 38) D501 TO DRIVER BOARD D502 D503 D504 D505 D506 D508 D509 D510 D511...

  • Page 27: Schematic Diagram - Main (1/3) Section

    HCD-BX7/DX7/DX7J 7-6. SCHEMATIC DIAGRAM – MAIN (1/3) SECTION – • See page 48 for IC Block Diagrams. DX7, DX7J MODEL 680 : BX7 330: EXCEPT BX7 L642 33uH : AEP,CIS G, UK 0 : EXCEPT AEP, UK, G, CIS 0.015 : BX7 0.01 : EXCEPT BX7...

  • Page 28: Schematic Diagram - Main (2/3) Section

    HCD-BX7/DX7/DX7J 7-7. SCHEMATIC DIAGRAM – MAIN (2/3) SECTION – • See page 21 for Wavefoms. • See page 44 for IC Pin Function Description. • See page 48 for IC Block Diagrams. (Page 29) (Page 29) (Page 29) DX7, DX7J MODEL...

  • Page 29: Schematic Diagram - Main (3/3) Section

    HCD-BX7/DX7/DX7J 7-8. SCHEMATIC DIAGRAM – MAIN (3/3) SECTION – (Page 27) (Page 31, 33) (Page 31, 33) US, CND, DX7, DX7J MODEL SURROUND SPEAKER (Page C901 DX7/DX7J: 3300 25V BX7: 3300 16V (Page (Page 28) M5F7809L (Page 28) M5F7807L (Page 28)

  • Page 30: (Bx7 Model)

    HCD-BX7/DX7/DX7J 7-9. PRINTED WIRING BOARD – POWER AMP SECTION – (BX7 MODEL) • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D501 D502 D541 D551 D581 D941 D979 IC501 Q501 Q503 Q504 Q551 Q581 Q941...

  • Page 31: (Bx7 Model)

    HCD-BX7/DX7/DX7J 7-10. SCHEMATIC DIAGRAM – POWER AMP SECTION – (BX7 MODEL) (Page 41) (Page 41) The components identified by Les composants identifiés par mark 0 or dotted line with mark une marque 0 sont critiques 0 are critical for safety.

  • Page 32: (Dx7, Dx7J Model)

    HCD-BX7/DX7/DX7J 7-11. PRINTED WIRING BOARD – POWER AMP SECTION – (DX7, DX7J MODEL) • See page 21 for Circuit Boards Location. (Page 42) (Page 26) (Page 26) (Page 42)

  • Page 33: Schematic Diagram - Power Amp Section

    HCD-BX7/DX7/DX7J 7-12. SCHEMATIC DIAGRAM – POWER AMP SECTION – (DX7, DX7J MODEL) (Page 43) (Page 43) (Page 29) (Page 29)

  • Page 34: Printed Wiring Board - Panel Section

    HCD-BX7/DX7/DX7J 7-13. PRINTED WIRING BOARD – PANEL SECTION – • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D601 D602 D603 D611 D612 D613 D614 D615 D617 D618 D630 D631 D632 IC601 IC602 IC603 IC721...

  • Page 35: Schematic Diagram - Panel Section

    HCD-BX7/DX7/DX7J 7-14. SCHEMATIC DIAGRAM – PANEL SECTION – • See page 21 for Wavefoms. • See page 45 for IC Pin Function Description. • See page 47 for IC Block Diagrams. EA, DX7J MODEL FUNCTION R737 (Page 29) 47k : EA, DX7J...

  • Page 36: Printed Wiring Board - Leaf Sw Section

    HCD-BX7/DX7/DX7J 7-15. PRINTED WIRING BOARD – LEAF SW SECTION – • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D1001 D1002 IC1001 IC1002 Q1001 (Page 26) (Page 26) (Page 26)

  • Page 37: Schematic Diagram - Leaf Sw Section

    HCD-BX7/DX7/DX7J 7-16. SCHEMATIC DIAGRAM – LEAF SW SECTION – NORMAL SPEED HIGH SPEED (Page 28)

  • Page 38: Printed Wiring Board - Driver Section

    HCD-BX7/DX7/DX7J 7-17. PRINTED WIRING BOARD – DRIVER SECTION – • Semiconductor Location Ref. No. Location D701 IC701 IC711 (Page 26)

  • Page 39: Schematic Diagram - Driver Section

    HCD-BX7/DX7/DX7J 7-18. SCHEMATIC DIAGRAM – DRIVER SECTION – (Page 29)

  • Page 40: (Bx7 Model)

    HCD-BX7/DX7/DX7J 7-19. PRINTED WIRING BOARD – TRANS SECTION – (BX7 MODEL) • See page 21 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D971 US, CND D972 MODEL D973 US MODEL D974 D975 D976 D977 IC971 Q971 EXCEPT...

  • Page 41: (Bx7 Model)

    HCD-BX7/DX7/DX7J 7-20. SCHEMATIC DIAGRAM – TRANS SECTION – (BX7 MODEL) US MODEL (Page 31) US, CND MODEL *F974, F975 6.3A/125V : US, CND 6.3A T6.3AL/250V *F974 : EXCEPT US, CND EXCEPT US, CND *F975 (Page 31) US MODEL The components identified by Les composants identifiés par...

  • Page 42: (Dx7, Dx7J Model)

    HCD-BX7/DX7/DX7J 7-21. PRINTED WIRING BOARD – TRANS SECTION – (DX7, DX7J MODEL) • See page 21 for Circuit Boards Location.

  • Page 43: Schematic Diagram - Trans Section

    HCD-BX7/DX7/DX7J 7-22. SCHEMATIC DIAGRAM – TRANS SECTION – (DX7, DX7J MODEL)

  • Page 44: Ic Pin Function Description

    HCD-BX7/DX7/DX7J 7-24. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC401 M30622MAA-A25FP (MASTER CONTROL) Pin No. Pin Name Description Pin No. Pin Name Description SURROUND 1 Not used. Not used. SURROUND 2 Not used. Not used. SURROUND 3 Not used. Not used.
  • Page 45 • PANEL BOARD • PANEL BOARD IC601 TMP88CP77F-1A22 (DISPLAY CONTROL) IC601 TMP88CP77F-1A22 (DISPLAY CONTROL) Pin No. Pin No. Pin Name Pin Name Description Description VOLUME A VOLUME A VOLUME A signal input. VOLUME A signal input. VOLUME B VOLUME B VOLUME B signal input.

  • Page 46: Ic Block Diagrams

    7-20. IC BLOCK DIAGRAMS IC101 CXD2587Q (BD BOARD) ERROR DIGITAL ASYMMETRY DIGITAL CORRECTOR CORRECTION LRCK OPERATIONAL AMPLIFIER PCMD INTERFACE DEMODULATOR ANALOG SWITCH CONVERTER EMPH XVDD CLOCK XTSL GENERATOR XTAI TIMING TES1 LOGIC XTAO TEST XVSS SERVO DSP PWM GENERATOR AVDD1 FRDR FOCUS FOCUS PWM...
  • Page 47 IC103 CXA2568M (BD BOARD) IC602 BA3830F (PANEL BOARD) APC PD AMP REFFERENCE RESET 18 RESET LC/PD CURRENT LD_ON HOLD REFFERENCE 17 f01 CURRENT AGCVTH VREF APC LD AMP HOLD_SW LINE 16 f02 AGCCONT (50%/30% OFF) LINE RF_BOT 15 f03 RFTC RF SUMMING AMP RF_EQ_AMP RF_1...
  • Page 48 IC601 BA1450 (MAIN BOARD) AM IF VREG DECODER DRIVER COMP IC302 µPC1330H (MAIN BOARD) IC681 M5218AFP (MAIN BOARD) INVERTER V– COMPARATER SW R1 SW P1 CONT SW P2 SW R2 IC651 LC72130 (MAIN BOARD) SWALLOW COUNTER 1/16.1/17 4bits POWER REFERENCE RESET DIVIDER SWALLOW COUNTER...

  • Page 49: Exploded Views

    SECTION 8 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Abbreviation The components identified by mark 0 or have some differences from the original one. CND: Canadian model dotted line with mark 0 are critical for safety. •...

  • Page 50: Panel Section

    4-224-584-11 HOLDER (FL) (EXCEPT DX7:TH/DX7J) A-4473-045-A CD SWITCH BOARD,COMPLETE (DX7J) A-4428-075-A PANEL BOARD,COMPLETE (BX7) 4-962-708-71 EMBLEM (4-A), SONY (DX7:TH/DX7J) A-4428-338-A PANEL BOARD,COMPLETE (DX7:EA) 4-962-708-81 EMBLEM (4-A), SONY (EXCEPT DX7:TH/DX7J) A-4428-342-A PANEL BOARD,COMPLETE (DX7:SP,MY,E2,MX,AR.AUS,E3,KR) 4-225-033-01 FR KNOB A-4428-907-A PANEL BOARD,COMPLETE (DX7:TH)

  • Page 51: Main Board Section

    8-3. MAIN BOARD SECTION US, CND not supplied UK,G E2,MX,TH EA,MY,SP G,CIS,AEP,EA,MY,SP not supplied The components identified by Les composants identifiés par mark 0 or dotted line with mark une marque 0 sont critiques 0 are critical for safety. pour la sécurité. Replace only with part number Ne les remplacer que par une specified.

  • Page 52: Tape Mechanism Section

    8-4. TAPE MECHANISM DECK SECTION Note: Two different types of tape mechanism are used depending on models. They maintain compatibility as an entire mechanism even though there are some different parts are used. Ref. No. Part No. Description Remarks Ref. No. Part No.

  • Page 53: Cd Mechanism Section

    8-5. CD MECHANISM DECK SECTION not supplied BU-K2BD38 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-933-134-11 SCREW (+PTPWH M2.6X8) X-4952-608-1 CAM(U/D) ASSY 4-221-679-01 CAM(RELAY) 4-221-681-01 LEVER (EX) 4-221-675-01 TABLE 4-221-682-01 LEVER (LIFTER) 4-221-686-01 LEVER (CHANGE) 4-221-688-01 PULLEY (B), CHUCKING 4-221-676-01 TRAY 1-471-035-11 MAGNET ASSY...

  • Page 54: Electrical Parts List

    SECTION 9 ELECTRICAL PARTS LIST NOTE: Ref. No. • Due to standardization, replacements in the Part No. Description • COILS Remarks Ref. No. Part No. Description Remarks When indicating parts by reference number, parts list may be different from the parts uH: µH please include the board name.
  • Page 55 CD SWITCH DRIVER HEAD (A) HEAD (B) LEAF SW Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R158 1-216-111-00 METAL CHIP 390K 1/10W S645 1-762-875-21 SWITCH, KEYBOARD (DISC 3) R159 1-216-101-00 METAL CHIP 150K 1/10W S646 1-762-875-21 SWITCH, KEYBOARD (OPEN/CLOSE) R162 1-216-101-00 METAL CHIP...
  • Page 56 LEAF SW MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > C111 1-163-018-00 CERAMIC CHIP 0.0056uF 5% C112 1-126-961-11 ELECT 2.2uF 20.00% 50V R1001 1-249-409-11 CARBON 1/4W F C113 1-126-957-11 ELECT 0.22uF 20.00% 50V R1002 1-249-409-11 CARBON 1/4W F...
  • Page 57 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C308 1-126-964-11 ELECT 10uF 20.00% 50V C382 1-137-427-11 MYLAR 120PF 5.00% 50V C309 1-137-194-81 MYLAR 0.47uF 5.00% 50V C383 1-163-003-11 CERAMIC CHIP 330PF C310 1-163-005-11 CERAMIC CHIP 470PF C384 1-163-103-00 CERAMIC CHIP...
  • Page 58 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C636 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V C852 1-163-038-91 CERAMIC CHIP 0.1uF C637 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V (AEP,G,UK,CIS) C638 1-163-135-00 CERAMIC CHIP 560PF C853 1-163-031-11 CERAMIC CHIP 0.01uF (AEP,G,UK,CIS) C861...
  • Page 59 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D651 8-719-988-61 DIODE 1SS355TE-17 < JACK > D681 8-719-988-61 DIODE 1SS355TE-17 (AEP,G,UK,CIS) D801 8-719-988-61 DIODE 1SS355TE-17 J101 1-793-987-11 JACK, PIN 2P (MD/VIDEO) J102 1-774-819-11 JACK, PIN 2P (SURROUND SPEAKER) D822 8-719-988-61 DIODE 1SS355TE-17 D841...
  • Page 60 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks JR634 1-216-295-91 SHORT Q824 8-729-113-13 TRANSISTOR FA1A4M-T1L33 JR636 1-216-295-91 SHORT 0 (AEP,G,UK,CIS) Q825 8-729-120-28 TRANSISTOR 2SC1623-T1-L5L6 JR640 1-216-295-91 SHORT 0 (US,CND,DX7,DX7J) Q828 8-729-120-28 TRANSISTOR 2SC1623-T1-L5L6 JR641 1-216-295-91 SHORT 0 (AEP,G,UK,CIS) Q829 8-729-120-28 TRANSISTOR...
  • Page 61 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R166 1-216-049-91 RES-CHIP 1/10W R360 1-216-045-00 METAL CHIP 1/10W R171 1-216-073-00 METAL CHIP 1/10W R361 1-216-057-00 METAL CHIP 2.2K 1/10W (DX7,DX7J) R363 1-216-057-00 METAL CHIP 2.2K 1/10W R172 1-216-073-00 METAL CHIP 1/10W...
  • Page 62 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R481 1-216-025-91 RES-CHIP 1/10W R617 1-216-035-00 METAL CHIP 1/10W (BX7) (AEP,G,UK,CIS) R483 1-216-073-00 METAL CHIP 1/10W R617 1-216-039-00 METAL CHIP 1/10W R484 1-216-073-00 METAL CHIP 1/10W (EXCEPT EA,AEP,G,UK,CIS) R490 1-216-174-00 RES-CHIP 1/8W...
  • Page 63 MAIN MOTOR PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R842 1-216-081-00 METAL CHIP 1/10W < VIBRATOR > R843 1-216-214-00 RES-CHIP 4.7K 1/8W R844 1-216-097-91 RES-CHIP 100K 1/10W X401 1-567-098-41 VIBRATOR, CRYSTAL 32.768kHz X402 1-781-107-21 VIBRATOR, CERAMIC 16MHz R845 1-216-121-91 RES-CHIP 1/10W...
  • Page 64 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C616 1-162-306-11 CERAMIC 0.01uF 30.00% 16V C734 1-104-664-11 ELECT 47uF 20.00% 10V C617 1-162-294-31 CERAMIC 0.001uF (EA,DX7J) C620 1-126-933-11 ELECT 100uF 20.00% 16V C735 1-126-961-11 ELECT 2.2uF 20.00% C621 1-104-664-11 ELECT...
  • Page 65 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C780 1-162-282-31 CERAMIC 100PF Q624 8-729-900-80 TRANSISTOR BA1A4M-TP C781 1-162-282-31 CERAMIC 100PF Q625 8-729-900-80 TRANSISTOR BA1A4M-TP C782 1-162-282-31 CERAMIC 100PF Q626 8-729-900-80 TRANSISTOR BA1A4M-TP Q721 8-729-119-79 TRANSISTOR 2SC2785TP-FEK (DX7,DX7J) C783 1-162-282-31 CERAMIC...
  • Page 66 PANEL POWER AMP Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R672 1-249-420-11 CARBON 1.8K 1/4W F R741 1-249-429-11 CARBON 1/4W R673 1-249-422-11 CARBON 2.7K 1/4W F (DX7,DX7J) R674 1-247-843-11 CARBON 3.3K 1/4W R675 1-249-425-11 CARBON 4.7K 1/4W F R742...
  • Page 67 POWER AMP Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4473-170-A POWER AMP BOARD, COMPLETE (TH) D543 8-719-302-37 DIODE RBV-602 (DX7,DX7J) D551 8-719-991-33 DIODE 1SS133T-77 **************************** D581 8-719-991-33 DIODE 1SS133T-77 A-4473-342-A POWER AMP BOARD, COMPLETE (DX7J) D941 8-719-110-90 DIODE MTZJ-T-77-39D D979...
  • Page 68 POWER AMP SENSOR SUB-TRANS TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R523 1-249-441-11 CARBON 100K 1/4W < SWITCH > (DX7,DX7J) R524 1-215-872-11 METAL OXIDE 3.3K S711 1-771-821-11 SWITCH, PUSH (1 KEY) (UP/DOWN) (DX7,DX7J) ************************************************************** R541 1-249-441-11 CARBON 100K...
  • Page 69 TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4428-346-A TRANS BOARD, COMPLETE R974 1-249-441-11 CARBON 100K 1/4W (EA,SP,MY,E2,AR,E3) (BX7) R975 1-249-429-11 CARBON 1/4W ************************************** (BX7) A-4428-536-A TRANS BOARD, COMPLETE (AUS) < RELAY > ************************** A-4428-537-A TRANS BOARD, COMPLETE (MX) RY971 1-755-276-11 RELAY, POWER (BX7) *************************...
  • Page 70 HCD-BX7/DX7/DX7J Sony Corporation 9-929-079-11 2000B0985-1 Home Audio Division Company Printed in Japan ©2000.2 Published by General Engineering Dept.

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