Sony CDP-EX77 Service Manual
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Sony CDP-EX77 Service Manual

Sony CDP-EX77 Service Manual

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SERVICE MANUAL
CDP-EX77 is the CD player section
in MHC-EX66, DHC-EX77MD/MD77
MICROFILM
SPECIFICATIONS
System
Compact disc and digital audio system
Laser
Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Laser output
Max. 44.6 µW*
* This output is the value measured at a distance of
200 mm from the objective lens surface on the Op-
tical Pick-up Block with 7 mm aperture.
Frequency response 2 Hz to 20 kHz (± 0.5 dB)
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Dimensions (w/h/d) incl. projecting parts and
Approx. 280 × 122.5 × 347 mm
controls:
Mass
Approx. 3.7 kg
Design and specifications are subject to change without notice.
CDP-EX77
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Name
Optical Pick-up Name
COMPACT DISC PLAYER
AEP Model
UK Model
E Model
HCD-MD5
CDM38A-5BD19
BU-5BD19
KSS-213B/K-N

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Summary of Contents for Sony CDP-EX77

  • Page 1 CDP-EX77 SERVICE MANUAL AEP Model UK Model E Model CDP-EX77 is the CD player section in MHC-EX66, DHC-EX77MD/MD77 Model Name Using Similar Mechanism HCD-MD5 CD Mechanism Type CDM38A-5BD19 Base Unit Name BU-5BD19 Optical Pick-up Name KSS-213B/K-N SPECIFICATIONS System Compact disc and digital audio system Laser Semiconductor laser (λ...

  • Page 2: Table Of Contents

    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: Servicing Notes

    If the other units are not available, use a service box (PFJ-1) and jig (J-2501-078-A). In this case, press the STOP button and TIME button simultaneously to turn on the power. [Connection Diagram] SERVICE BOX (PFJ-1) UNIT (CDP-EX77) (J-2501-078-A) POWER SW CN101 7P...

  • Page 4: General

    SECTION 2 This section is extracted from instruction manual. GENERAL – 4 –...
  • Page 5 – 5 –...
  • Page 6 – 6 –...
  • Page 7 – 7 –...
  • Page 8 – 8 –...

  • Page 9: Disassembly

    SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. CASE, CHASSIS (Page 9) LOADING PANEL (Page 10) FRONT PANEL SECTION (Page 10) OPTICAL PICK-UP, MAIN BOARD, BASE UNIT BD BOARD SLED MOTOR CD MECHANISM DECK (Page 11) (Page 13) (Page 13)
  • Page 10 LOADING PANEL 3 loading panel 1 Rotate the BU cam ass’y to direction of the arrow A . 2 Pull the tray (slide). BU cam ass’y FRONT PANEL SECTION 2 two screws (BV3 × 10) 3 two bosses 4 claw 1 flat wire (29 core) 5 front panel (CN305)
  • Page 11 MAIN BOARD, CD MECHANISM DECK !£ CD mechanism deck !¡ screw (BV3 × 10) !™ bracket (L) 3 connector (CN303) !¡ screw (BV3 × 10) !™ bracket (R) 1 Six screws 0 flat wire (8 core) (BV3 × 10) (CN702) 2 back panel 4 connector (CN304)
  • Page 12 TRAY SECTION claw A claw B 3 flat wire (CN705) flat wire Note: When installing the tray, pull around the flat 4 two claws wire to pass through the claw A and claw B , as shown in the figure. 2 Pull the tray.
  • Page 13 BD BOARD 1 two screws 1 two screws (PTPWH M2.6 × 6) (PTPWH M2.6 × 6) 2 optical pick-up section 3 two springs 3 two springs 5 screw 4 flat wire (BVTP 2.6 × 8) (CN101) 6 Removal 7 BD board the four solders.

  • Page 14: Electrical Adjustments

    SECTION 4 ELECTRICAL ADJUSTMENTS 5. Confirm that the oscilloscope waveform (S-curve) is symmetri- Notes: cal between A and B. And confirm peak to peak level within 1. CD Block basically constructed to operated without adjust- 2.4 ± 0.7 Vp-p. ment. Therefore, check eaech item in order given.

  • Page 15: Diagrams

    SECTION 5 DIAGRAMS • Circuit Boards Location Traverse waveform TABLE board level: 300 ± 100 mVp-p SENSOR board × 100 = less than ± 7% specified value: • 2 (A+B) BD board • A+B = 300 ± 100 mVp-p PANEL board 7.

  • Page 18: Main/Panel/Motor Section

    • Waveforms – BD Section – – MAIN/PANEL/MOTOR Section – 1 IC101 #¡ (RFO) (PLAY Mode) 6 IC103 @∞ (XPCK) 1 IC501 !¡ (X2) 500 mV/DIV, 500 ns/DIV 1.3 ± 0.3 Vp-p 5.3 Vp-p 3 Vp-p 10 MHz 14 ns 2 IC101 $¢...

  • Page 21: Ic Block Diagrams

    • IC Block Diagrams – BD Section – IC101 CXA1782BQ – LEVELS 24 SENS – MIRR RF IV AMP1 DFCT 23 C. OUT – 22 XRST RF IV AMP2 21 DATA FE BIAS • IIL DATA RESISTOR • INPUT SHIFT RESISTOR •...
  • Page 22 IC102 BA6397FP DRIVE DRIVE DRIVE BUFFER BUFFER BUFFER DRIVE BUFFER REGULATOR DRIVER MUTE DRIVE DRIVE DRIVE DRIVE BUFFER BUFFER BUFFER BUFFER IC103 CXD2507AQ SERVO AUTO DATA SEQUENCER XRST SENS SUB CODE MUTE INTERFACE PROCESSOR DIGITAL LOCK SQCK TEST SQSO FILO EXCK DIGITAL FILI...

  • Page 23: Main/Panel/Motor Section

    IC104 PCM1710U-B ML/DSD LRCIN INPUT MC/DM2 INTERFACE DIGITAL MODE FILTER CONTROL BCKIN MD/DM1 TIMING CLKO MUTE CONTROL MODE CKSL NOISE SHAPER DGND DGND 5-LEVEL DAC 5-LEVEL DAC RIGHT LEFT GND2R GND2L LOW-PASS FILTER LOW-PASS FILTER RIGHT LEFT EXT1R EXT1L 3-STAGE AMP 3-STAGE AMP EXT2R EXT2L...

  • Page 24: Ic Pin Function Description

    5-5. IC PIN FUNCTION DESCRIPTION • DISPLAY BOARD IC501 µPD780205GF-021-3BA (SYSTEM CONTROL, FL TUBE DISPLAY DRIVE) Pin No. Pin Name Function – +5 V power supply – – Connected to ground DISC. SENS Input of disc sensor signal “L” : No disc, “H” : Disc present TABLE.
  • Page 25 Pin No. Pin Name Function LED. JOG Output of JOG LED drive LED. ENT Output of ENTER LED drive Disc tray address detection encoder input 2 Disc tray address detection encoder input 1 Disc tray address detection encoder input 0 –...

  • Page 26: Exploded Views

    SECTION 6 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark may have some difference from the original are seldom required for routine service. Some ! or dotted line with mark ! are one.
  • Page 27 Remark X-4947-763-1 BUTTON (F/R) ASSY (0, )) 4-985-925-01 KNOB (JOG) X-4947-654-1 PANEL ASSY, FRONT 4-985-892-01 BUTTON (PLAY) (fl, p) 4-962-708-01 EMBLEM (4-A), SONY * 63 A-4699-278-A PANEL BOARD, COMPLETE 4-985-890-01 BUTTON (MODE) 1-777-861-11 WIRE (FLAT TYPE) (29 CORE) 4-951-620-01 SCREW (2.6X8), +BVTP...
  • Page 28 (3) CD MECHANISM DECK SECTION-1 (DM38A-5BD19) M701 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 201 1-663-322-11 SENSOR BOARD * 208 1-663-323-11 TABLE BOARD 4-981-187-01 COLLAR (WORM) 4-977-941-01 BEARING (WORM) X-4946-295-2 SHAFT ASSY, WORM 4-977-944-01 TRAY (SLIDE) 4-977-956-01 WHEEL, WORM 4-917-583-21 BRACKET, YOKE 4-988-162-11 ROLLER...
  • Page 29 (4) CD MECHANISM DECK SECTION-2 (CDM38A-5BD19) M801 BU-5BD19 S851 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4946-296-1 HOLDER (BU) ASSY 4-977-942-01 BELT (SL) (1.4) 4-982-447-01 SPRING (BU), COMPRESSION X-4946-491-1 CAM ASSY, BU 4-985-672-01 SCREW (+PTPWHM2.6), FLOATING * 262 1-452-879-11 MAGNET * 254...
  • Page 30 (5) BASE UNIT SECTION (BU-5BD19) M101 M102 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-951-620-01 SCREW (2.6X8), +BVTP 1-769-069-11 WIRE (FLAT TYPE) (16 CORE)

  • Page 31: Electrical Parts List

    SECTION 7 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark are seldom required for routine service. parts list may be different from the parts speci- ! or dotted line with mark ! are fied in the diagrams or the components used on Some delay should be anticipated when order-...
  • Page 32 DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R124 1-216-091-00 METAL CHIP 1/10W C506 1-164-005-11 CERAMIC CHIP 0.47uF R125 1-216-069-00 METAL CHIP 6.8K 1/10W C507 1-164-005-11 CERAMIC CHIP 0.47uF R126 1-216-063-00 METAL GLAZE 3.9K 1/10W C508 1-165-319-11 CERAMIC CHIP 0.1uF...
  • Page 33 DISPLAY LOADING MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R522 1-216-061-00 METAL CHIP 3.3K 1/10W R597 1-249-425-11 CARBON 4.7K 1/4W R523 1-216-025-00 METAL GLAZE 1/10W R598 1-216-049-11 METAL GLAZE 1/10W R524 1-216-073-00 METAL CHIP 1/10W R525 1-216-052-00 METAL CHIP...
  • Page 34 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C105 1-126-933-11 ELECT 100uF 20% 16V < DIODE > C106 1-162-294-31 CERAMIC 0.001uF 10% 50V C201 1-162-306-11 CERAMIC 0.01uF 20% 16V D301 8-719-024-99 DIODE 11ES2-NTA2B C202 1-126-933-11 ELECT 100uF 20% 16V D302...
  • Page 35 MAIN PANEL RELAY SENSOR TABLE Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R201 1-249-421-11 CARBON 2.2K 1/4W S602 1-762-196-21 SWITCH, TACT (SKIP) R202 1-249-441-11 CARBON 100K 1/4W S603 1-762-196-21 SWITCH, TACT (DISC 1) S604 1-762-196-21 SWITCH, TACT (DISC 2) R203 1-249-421-11 CARBON 2.2K...
  • Page 36 CDP-EX77 Ref. No. Part No. Description Remark MISCELLANEOUS ************* 1-777-862-11 WIRE (FLAT TYPE) (19 CORE) 1-777-861-11 WIRE (FLAT TYPE) (29 CORE) 1-777-860-11 WIRE (FLAT TYPE) (9 CORE) 1-776-042-11 WIRE (FLAT TYPE) (8 CORE) * 262 1-452-879-11 MAGNET ! 305 8-848-367-11 OPTICAL PICK-UP KSS-213B/K-N...

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