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Sony MDX-C7970/C7970R Service Manual

Fm/am(mw/lw) minidisc player
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MDX-C7970/C7970R
SERVICE MANUAL
For RM-X4S (Remote Commander),
please refer to RM-X4S Service Manual
(9-925-698-∏) previously issued.
MICROFILM
Photo: MDX-C7970R
Model Name Using Similar Mechanism
Base Mechanism Type
Optical Pick-Up Name
SPECIFICATIONS
FM/AM(MW/LW) MINIDISC PLAYER
US Model
Canadian Model
E Model
MDX-C7970
AEP Model
UK Model
MDX-C7970R
MDX-C7900/C7900R
MG-164N-138
KMS-241B/J1NP
– Continued on next page –

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Summary of Contents for Sony MDX-C7970/C7970R

  • Page 1 MDX-C7970/C7970R SERVICE MANUAL US Model Canadian Model E Model MDX-C7970 AEP Model UK Model MDX-C7970R For RM-X4S (Remote Commander), please refer to RM-X4S Service Manual Photo: MDX-C7970R (9-925-698-∏) previously issued. Model Name Using Similar Mechanism MDX-C7900/C7900R Base Mechanism Type MG-164N-138...
  • Page 2 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS GENERAL Location of Controls ............4 Resetting the Unit ............5 Detaching the Front Panel ..........5 Preparing the Rotary Commander ........5 Setting the Clock ............. 5 Using the Rotary Commander ........5 Adjusting the Sound Characterisitics ......5 Attenuating the Sound ............
  • Page 4 SECTION 1 This section is extracted from instruction manual. GENERAL – 4 –...
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  • Page 12: Disassembly

    SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. SUB PANEL ASS’Y 2 two claws 4 sub panel ass’y 1 three screws (PTT2.6 × 6) 2 claw 3 connector (CN901) 1 screw (PTT2.6 × 6) MECHANISM DECK (MG-164N-138) 1 two screws (PTT2.6 ×...
  • Page 13 MAIN BOARD, HEAT SINK 5 eight screws (PTT2.6 × 10) 2 three screws (PTT2.6 × 6) (ground point) 1 two screws (PTT2.6 × 10) 6 heat sink 3 main board 4 insulating sheet SERVO BOARD 2 two screws (BVTT2 × 4) 2 two screws (BVTT2 ×...
  • Page 14 MD COVER ASS’Y 1 four screws (B2 × 3) 3 MD cover ass’y shaft (MD cover guide) cassette holder 2 Pushing the Cassette Holder toward the direction A with a screwdriver, etc., disengage the Shaft (MD Cover Guide) from the slot in the MD Cover Ass’y. Note: Take care not to scratch the Optiocal Pick-up when pushing the Cassette Holder with a screwdriver.
  • Page 15 LO MOTOR ASS’Y (LOADING) (M903) 4 Remove the bracket (LO) in the direction of the arrow A . 5 LO motor ass’y (loading) 1 Remove solders of motor. (M903) (M903) 2 tension spring (rack) 3 claw LEVER (LE) ASS’Y 2 stopper washer 2 lever (LE) ass’y 3 roller (GLE) –...
  • Page 16 HOLDER ASS’Y 4 Remove the holder ass’y in the direction of the arrow. 2 type-E stopring 1.5 1 spring (CHKG) 2 type-E stop ring 1.5 2 type-E stop ring 1.5 3 lever (lock R) 3 lever (lock L) 1 spring (CHKG) 2 type-E stop ring 1.5 CHUCKING ARM ASS’Y 1 Remove the chucking arm ass’y...
  • Page 17 OPTICAL PICK-UP (KMS-241B/J1NP) 4 screw (B2 × 3) 6 bearing (SL) 5 feed screw ass’y 7 optical pick-up (KMS-241B/J1NP) 3 screw (K2 × 3) 1 two screws (K2 × 3) 2 shaft (SL2) SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901) 4 screw (P1.7 ×...

  • Page 18: Electrical Adjustments

    SECTION 3 ELECTRICAL ADJUSTMENTS TEST MODE TUNER SECTION 0 dB=1 µV This set have the test mode function. In the test mode, FM Auto Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments Cautions during repair can be performed easier than it in ordinary procedure. When the tuner unit is defective, replace it by a new one be- cause its internal block is difficult to repair.
  • Page 19 FM Stereo Separation Adjustment (MDX-C7970) FM Stereo Separation Adjustment (Wide) (MDX-C7970R) Setting: Setting: [SOURCE] [SOURCE] button : FM button : FM [SHIFT] FREQUENCY SELECT switch : FM 200 k (E model) button : ON (light up SET UP and PLAY MODE) (PLAY MODE) →...
  • Page 20 FM Stereo Separation Adjustment (Narrow) FM RDS S-Meter Adjustment (MDX-C7970R) (MDX-C7970R) Setting: [SOURCE] Setting: button : FM [SOURCE] button : FM [SHIFT] button : ON (light up SET UP and PLAY MODE) FM RF signal (PLAY MODE) → Preset [4] generator antenna jack (J1) (→) buttons...
  • Page 21 MW Auto Scan/Stop Level Adjustment Adjustment Location: Setting: [SOURCE] [MODE] – SET UPPER VIEW – button : AM (MDX-C7970) MW (MDX-C7970R) FREQUENCY SELECT switch : AM 10 k (E model) 30 Ω 15 pF RV1 RDS S-Meter Adjustment (MDX-C7970R) 65 pF AM RF signal generator AM dummy antenna...

  • Page 22: Diagrams

    MDX-C7970/C7970R SECTION 4 DIAGRAMS IC301 (1/2) 4-1. BLOCK DIAGRAM – SERVO Section – • SIGNAL PATH EFMO ADDT : MD PLAY FILI DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, CLTV ATRAC ENCODER/DECODER, 2M BIT D-RAM SAMPLING FILO IC301 (1/2)

  • Page 23: Block Diagram - Tuner Section

    MDX-C7970/C7970R 4-2. BLOCK DIAGRAM – TUNER Section – FM B+ AM B+ TUNER B+ FM/AM TUNER UNIT (FM/AM ANTENNA) 2 FM-ANT FM-LCH (Page 27) (C7970) (C7970R) (C7970) (C7970R) (C7970) (C7970R) AM-ANT FM-RCH R-CH MUTING Q101 AM-DET (Page 27) R-CH MUTING...

  • Page 24: Block Diagram - Main Section

    MDX-C7970/C7970R 4-3. BLOCK DIAGRAM – MAIN Section – • SIGNAL PATH : MD PLAY CNP300 (1/2) : FM INPUT SELECT, AUDIO IN : AM (MW/LW) ELECTRICAL VOLUME R-CH IC300 : BUS AUDIO IN CNP300 (2/2) DADT, BCK, LOUDNESS VOLUME TONE...

  • Page 25: Block Diagram - Display/Key Control Section

    MDX-C7970/C7970R 4-4. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section – RE501 VOLUME/BASS/TREBLE/ (LSW533: MDX-C7970R only) BALANCE/FADER CONTROL LSW512 – 521, D900 S501 LSW531 – 538, D-BASS LSW890, S502 ROTARY ENCODER RE501 J900 REMOTE IN CNP501 D912 FRONT PANEL SIDE S901 BUZZER...

  • Page 26: Block Diagram - Bus Control/Power Supply Section

    MDX-C7970/C7970R 4-5. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section – REMOTE CONTROL CNJ600 MASTER CONTROLLER RECEIVER BUS CONTROL IN IC700 (4/4) IC502 (FOR SONY BUS) D605 SIRCS BUFFER SIRCS 24 SIRCS Q602 (Page 28) CNP500 (2/2) RAM RESET BACKUP +5V...

  • Page 27: Schematic Diagrams

    4-6. NOTES FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location Note on Printed Wiring Board: Note on Schematic Diagram: SENSOR board • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. pF: µµF •...
  • Page 28 MDX-C7970/C7970R 4-7. PRINTED WIRING BOARDS – SERVO Section – • See page 34 for Circuit Boards Location. • Semiconductor Location (Page 46) Ref. No. Location D401 D501 IC301 IC302 IC303 IC304 IC305 IC306 IC307 IC401 IC501 IC502 IC503 Q301 Q302...

  • Page 29: Schematic Diagram - Servo Board (1/3)

    MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground The components identified by mark ! or dotted Les composants identifiés par une marque ! sont under no-signal conditions. line with mark ! are critical for safety. critiques pour la sécurité. Ne les remplacer que no mark : MD PLAY 4-8.

  • Page 30: Schematic Diagram - Servo Board (2/3)

    MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD PLAY ∗ : Impossible to measure 4-9. SCHEMATIC DIAGRAM – SERVO Board (2/3) – • See page 67 for Waveforms. • See page 62 for IC Block Diagrams.

  • Page 31: Schematic Diagram - Servo Board (3/3)

    MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD PLAY ∗ 4-10. SCHEMATIC DIAGRAM – SERVO Board (3/3) – • See page 67 for Waveform. : Impossible to measure (Page 47) (Page 40) –...

  • Page 32: Printed Wiring Board - Main Board (Component Side)

    MDX-C7970/C7970R 4-11. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 34 for Circuit Boards Location. • Semiconductor Location Ref. No. Location Ref. No. Location D-11 D917 F-11 H-11 IC100 E-11 IC101 IC102 I-12 D200 IC250 D202...
  • Page 33 MDX-C7970/C7970R 4-12. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • See page 34 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D502 IC500 IC800 (Page 35) Q903 Q904 (Page 60) – 45 – – 46 –...

  • Page 34: Schematic Diagram - Main Board (1/4)

    MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ) : AM (MW) 4-13. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 67 for Waveforms. • See page 65 for IC Block Diagrams.
  • Page 35 MDX-C7970/C7970R • Voltages are dc with respect to ground under no-signal (detuned) conditions. 4-14. SCHEMATIC DIAGRAM – MAIN Board (2/4) – no mark : FM (Page 48) (Page 54) – 49 – – 50 –...
  • Page 36 MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ) : AM (MW) 4-15. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 67 for Waveforms. • See page 65 for IC Block Diagrams.
  • Page 37 MDX-C7970/C7970R • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ) : AM (MW) ] : LW 4-16. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 66 for IC Block Diagrams.
  • Page 38 MDX-C7970/C7970R 4-17. PRINTED WIRING BOARD – DISPLAY Board – • See page 34 for Circuit Boards Location. • Semiconductor Location (Component Side) Ref. No. Location IC501 LED501 LED502 LED503 LED504 LED505 LED510 LED511 B-11 • Semiconductor Location (Conductor Side) Ref. No.

  • Page 39: Schematic Diagram - Display Board

    MDX-C7970/C7970R • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM 4-18. SCHEMATIC DIAGRAM – DISPLAY Board – • See page 68 for Waveform. (Page – 57 – – 58 –...

  • Page 40: Printed Wiring Board - Sub Board

    MDX-C7970/C7970R 4-19. PRINTED WIRING BOARD – SUB Board – • See page 34 for Circuit Boards Location. (Page 45) (Page 56) – 59 – – 60 –...

  • Page 41: 4-20. Schematic Diagram - Sub Board

    MDX-C7970/C7970R 4-20. SCHEMATIC DIAGRAM – SUB Board – (Page 54) (Page 57) – 61 –...
  • Page 42 • IC Block Diagrams – SERVO Board – IC101 PCM1718E/2K 20 XTO CONTROL 19 CLKO DGND INPUT INTERFACE 18 MUTE MODE CONTROL DIGITAL LRCIN 17 DM1 FILTER 16 DM0 NOISE SHAPER BCKIN 15 RSTB 5 LEVEL 5 LEVEL ZERO 14 FORMAT D/C_R 13 D/C_L LOWPASS...
  • Page 43 IC302 CXA2523R 43 42 USROP – RF AGC – USRC RFA1 BPF3T RFA2 PEAK3T – HLPT –1 – – –2 – CFST PTGR TEMP PEAK – –2 – BOTTOM 36 BOTM – –1 GRVA 35 ABCD 34 FE 33 AUX –...
  • Page 44 IC303 BH6511FS-E2 INTERFACE INTERFACE CHARGE PREDRIVE PREDRIVE PUMP. PREDRIVE PREDRIVE INTERFACE INTERFACE IC305 BA6287F OUT1 OUT2 DRIVER DRIVER VREF CONTROL LOGIC POWER SAVE IC307 MN41V4400TT-08S CLOCK OSC XRAS XCAS A0–A9 COLUMN DECODER SENSE REFRESH AMP INPUT/OUTPUT CONTROL SWITCH A0–A9 MEMORY CELL (4194204 BIT) –...

  • Page 45: Main Board

    – MAIN Board – IC100 TDA7427AD SUPPLY & POWER ON RESET 11 BIT SWITCH PROGRAMMABLE SWM/DIR COUNTER COUNTER FM/AM SWITCH 5 BIT SWITCH PROGRAMMABLE SWM/DIR COUNTER CONTROL TIMER SWITCH 11 – 21 BIT 16 BIT 14 BIT FM/AM PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE SWITCH COUNTER...
  • Page 46 IC300 TDA7462D013TR SE3L SE3R MUTE PAUSE PAUSE DETECT FRONT INPUT TREBLE/ OUT FL VOICE BANDPASS LOUDNESS VOLUME FADER GAIN & SOFT BASS CONTROL SE1L CONTROL AUTO MUTE CONTROL CIRCUIT CIRCUIT SE1R ZERO CIRCUIT FRONT MD– OUT FR FADER CDL+ CDL– COMPANDER CDR–...
  • Page 47 • Waveforms – SERVO Board – – MAIN Board – 1 IC302 @§ (TE) (MD PLAY Mode) 6 IC501 #¡ (EXTAL) (MD PLAY Mode) 1 IC100 9 (OSC IN) (FM/AM (MW) Mode) Approx. 2.7 Vp-p 2.7 Vp-p 0.5 Vp-p 0.1 µ s 94 ns 2 IC302 #¢...
  • Page 48 – KEY Board – 6 IC700 (£ (X1) 1 IC801 @º (OSC IN) 5.8 Vp-p 2.8 Vp-p 3.5 µ s 271 ns – 68 –...

  • Page 49: 4-21. Ic Pin Function Description

    4-21. IC PIN FUNCTION DESCRIPTION • SERVO BOARD IC301 CXD2652AR (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 2M BIT D-RAM) Pin No. Pin Name Function Focus OK signal output to the MD mechanism controller (IC501) MNT0 “H”...
  • Page 50 Pin No. Pin Name Function Two-way data bus with the D-RAM (IC307) MVCI Digital in PLL oscillation input from the external VCO Not used (fixed at “L”) ASYO Playback EFM full-swing output terminal ASYI I (A) Playback EFM asymmetry comparator voltage input terminal AVDD —...
  • Page 51 Pin No. Pin Name Function SFDR Sled servo drive PWM signal (+) output to the BH6511FS (IC303) SPRD Spindle servo drive PWM signal (–) output to the BH6511FS (IC303) SPFD Spindle servo drive PWM signal (+) output to the BH6511FS (IC303) FGIN Not used (fixed at “L”) TEST1...
  • Page 52 • SERVO BOARD IC302 CXA2523R (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name Function I-V converted RF signal I input from the optical pick-up block detector I-V converted RF signal J input from the optical pick-up block detector Middle point voltage (+1.65V) generation output terminal 4 to 9 A to F Signal input from the optical pick-up detector...
  • Page 53 Two way data bus with the external EEPROM device Not used (open) MD-SO Writing serial data signal output to the CXD2652AR (IC301) and CXA2523R (IC302) LINKOFF Unilink on/off control signal output for the SONY bus “L”: link on, “H”: link off – 73 –...
  • Page 54 Pin Name Function UNIREQ Data request signal output terminal (for SONY bus) “H”: request on Not used (open) Serial clock signal input from the master controller (IC700) or serial clock signal output to the UNICKIO SONY bus interface (IC600) and master controller (IC700) (for SONY bus)
  • Page 55 Serial data output to the SONY bus interface (IC600) Serial clock signal output to the MD mechanism controller (IC501) and SONY bus interface UNI CKIO (IC600) or serial clock signal input from the MD mechanism controller (IC501) (for SONY bus) Not used (open) SIRCS...
  • Page 56 Pin No. Pin Name Function AVRH Reference voltage (+5V) input terminal (for A/D converter) AVRL Reference voltage (0V) input terminal (for A/D converter) AVSS — Ground terminal (for A/D converter) Key input terminal (A/D input) (LSW531, LSW532, S502, LSW533 to LSW538) KEY-IN0 OFF, SOURCE, SEEK/AMS + ) + = 0 –...
  • Page 57 Pin No. Pin Name Function Sub system clock input terminal (32.768 kHz) Not used (open) Battery detect signal input from the SONY bus interface (IC600) and battery detect circuit BU-IN “L” is input at low voltage 77, 78 Not used (open)
  • Page 58 Pin No. Pin Name Function FM system power supply on/off control signal output to the BA3918 (IC800) FM-ON “L”: AM power on, “H”: FM power on Tuner system power supply on/off control signal output to the BA3918 (IC800) TU-ON “H”: tuner power on Not used (open) 112 to 118 —...

  • Page 59: Exploded Views

    SECTION 5 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark may have some difference from the original are seldom required for routine service.
  • Page 60 (2) FRONT PANEL SECTION not supplied (DISPLAY board) LCD501 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-030-949-01 BUTTON (1-10) 3-030-898-01 BUTTON (PTY) (PTY. AF/TA) (C7970R) (SHIFT. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10) 3-030-942-01 BUTTON (DSPL) (LIST.
  • Page 61 (3) MECHANISM DECK SECTION-1 (MG-164N-138) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 A-3317-459-A SERVO BOARD, COMPLETE * 110 3-032-712-01 LEVER (LOCK R) * 102 X-3376-799-1 CHASSIS ASSY, MD 3-919-281-01 SPRING (CHUCKING) 3-032-714-01 SPRING (FLOAT F), TENSION * 112 X-3376-800-1 COVER ASSY, MD 3-921-111-01 SPRING (FL 2), TENSION...
  • Page 62 (4) MECHANISM DECK SECTION-2 (MG-164N-138) M903 M901 M902 The components identified by Les composants identifiés par une mark ! or dotted line with marque ! sont critiques pour la mark ! are critical for safety. sécurité. Replace only with part num- Ne les remplacer que par une pièce ber specified.

  • Page 63: Electrical Parts List

    SECTION 6 DISPLAY ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark are seldom required for routine service. parts list may be different from the parts speci- ! are critical for safety.
  • Page 64 DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R514 1-216-049-11 RES,CHIP 1/10W R515 1-216-053-00 METAL CHIP 1.5K 1/10W R594 1-216-049-11 RES,CHIP 1/10W R516 1-216-053-00 METAL CHIP 1.5K 1/10W R599 1-216-025-00 RES,CHIP 1/10W R517 1-216-057-00 METAL CHIP 2.2K 1/10W <...
  • Page 65 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-163-251-11 CERAMIC CHIP 100PF (C7970) 1-163-009-11 CERAMIC CHIP 0.001uF 1-163-251-11 CERAMIC CHIP 100PF (C7970R) 1-163-275-11 CERAMIC CHIP 0.001uF 1-164-004-11 CERAMIC CHIP 0.1uF (C7970R) 1-163-021-11 CERAMIC CHIP 0.01uF 1-163-809-11 CERAMIC CHIP 0.047uF 1-163-019-00 CERAMIC CHIP...
  • Page 66 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C420 1-163-251-11 CERAMIC CHIP 100PF C424 1-164-489-11 CERAMIC CHIP 0.22uF < CONNECTOR/JACK > C425 1-164-489-11 CERAMIC CHIP 0.22uF C501 1-104-329-11 CERAMIC CHIP 0.1uF CN200 1-764-617-12 PIN, CONNECTOR (PC BOARD) 30P C502 1-115-334-11 FILM 0.47uF...
  • Page 67 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q101 8-729-920-21 TRANSISTOR DTC314TKH04 (C7970R) D905 8-719-158-49 DIODE RD12SB2 D906 8-719-056-84 DIODE UDZ-TE-17-7.5B Q102 8-729-920-21 TRANSISTOR DTC314TKH04 (C7970R) D907 8-719-056-84 DIODE UDZ-TE-17-7.5B Q103 8-729-921-25 TRANSISTOR FMC2 (C7970R) D912 8-719-914-44 DIODE DAP202K Q250...
  • Page 68 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-025-00 RES,CHIP 1/10W 1-216-073-00 METAL CHIP 1/10W 1-216-295-00 SHORT (C7970) 1-216-295-00 SHORT 1-216-001-00 METAL CHIP 1/10W 1-216-113-00 METAL CHIP 470K 1/10W (C7970R) (C7970) R103 1-216-063-00 METAL CHIP 3.9K 1/10W 1-216-057-00 METAL CHIP...
  • Page 69 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R906 1-216-067-00 METAL CHIP 5.6K 1/10W R604 1-216-089-00 RES,CHIP 1/10W R907 1-216-037-00 METAL CHIP 1/10W R700 1-216-073-00 METAL CHIP 1/10W R701 1-216-089-00 RES,CHIP 1/10W R908 1-216-037-00 METAL CHIP 1/10W R702 1-216-101-00 METAL CHIP...
  • Page 70 SENSOR SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3317-457-A SENSOR BOARD, COMPLETE C344 1-104-852-11 TANTAL. CHIP 22uF 6.3V *********************** C345 1-162-970-11 CERAMIC CHIP 0.01uF For the parts on the SENSOR board, replace the entire mounted board. C346 1-104-852-11 TANTAL.
  • Page 71 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R343 1-216-827-11 METAL CHIP 3.3K 1/16W < COIL > R344 1-216-833-11 METAL CHIP 1/16W L101 1-412-058-11 INDUCTOR CHIP 10uH R345 1-216-827-11 METAL CHIP 3.3K 1/16W L102 1-412-058-11 INDUCTOR CHIP 10uH R346 1-216-841-11 METAL CHIP 1/16W...
  • Page 72 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R545 1-216-864-11 METAL CHIP 1/16W ************** HARDWARE LIST < CONPOSITION CIRCUIT BLOCK > ************** RB301 1-233-576-11 RES, CHIP NETWORK 100 7-621-772-10 SCREW +B 2X4 RB302 1-233-576-11 RES, CHIP NETWORK 100 7-685-792-09 SCREW +PTT 2.6X6 (S) RB503 1-233-412-11 RES, CHIP NETWORK 1K (3216)
  • Page 73 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTION ************************************* 3-009-613-21 FRAME X-3376-976-1 COLLAR ASSY 3-027-138-01 SPRING, FITTING FRAME COLLAR ASS’Y FITTING SPRING X-3366-405-1 SCREW ASSY (EXP), FITTING × 1 × 1 ×...
  • Page 74 MDX-C7970/C7970R Sony Corporation 99B0578-1 9-926-439-11 Personal & Mobile Communication Company Printed in Japan © 1999. 2 – 94 – Published by Quality Assurance Dept.

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