Sony CDP-CX57 Service Manual
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Sony CDP-CX57 Service Manual

Sony CDP-CX57 Service Manual

Sony compact disc player service manual
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SERVICE MANUAL
Compact disc player
Laser
Laser output
Frequency response
Signal-to-noise ratio
Dynamic range
Harmonic distortion
Channel separation
Outputs
Jack
Maximum
type
output
level
LINE OUT
Phono
2V
Jacks
(at 50 kilohms)
DIGITAL
Optical
–18 dBm
OUT
output
(OPTICAL)
connector
MICROFILM
SPECIFICATIONS
Semiconductor laser ( = 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 to 20 kHz ± 1dB
More than 107 dB
More than 88 dB
Less than 0.013%
More than 100 dB
Load impedance
Over 10 kilohms
Wave length: 660 nm
CDP-CX57
Model Name Using Similar Mechanism CDP-CX50/CX571
CD Mechanism Type
Base Unit Type
Optical Pick-up Type
General
Power requirements
Where purchased
Power requirements
US/Canada
120 V AC, 60 Hz
Australia
240 V AC, 50/60 Hz
UK
220 V – 230 V AC, 50/60 Hz
Other countries
110 V – 120 V or 220 V – 240 V AC,
adjustable, 50/60 Hz
Power consumption
12 W
Dimensions (approx.)
When the front cover is closed
(w/h/d)
430 182.5 295 mm (17 7 1/4 11 5/8 in.)
incl. projecting parts
When the front cover is open
430 182.5 414 mm (17 7 1/4 16 3/8 in.)
incl. projecting parts
Mass (approx.)
5.5 kg (12 lbs 3 oz)
Supplied accessories
Audio cord (2 phono plugs – 2 phono plugs) (1)
CONTROL A1 cord (supplied for Canadian models only) (1)
Remote commander (remote) (1)
Sony SUM-3 (NS) batteries (2)
CD booklet holder (1) and Label (1)
Design and specifications are subject to change without notice.
COMPACT DISC PLAYER
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
CDM-46C1
KSM-213BFN/M-NP
KSS-213B/S-N

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Summary of Contents for Sony CDP-CX57

  • Page 1 LINE OUT Phono Jacks (at 50 kilohms) DIGITAL Optical –18 dBm output (OPTICAL) connector MICROFILM CDP-CX57 Model Name Using Similar Mechanism CDP-CX50/CX571 CD Mechanism Type Base Unit Type Optical Pick-up Type SPECIFICATIONS General Power requirements Where purchased US/Canada Australia Other countries Power consumption Dimensions (approx.)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SERVICING NOTES ... 2 GENERAL ... 6 DISASSEMBLY ... 7 TEST MODE ... 11 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS DIAGRAMS ... 20 7-1. Block Diagrams • BD Section ... 23 • Main Section ... 25 7-2. Printed Wiring Board – BD Section – ... 27 7-3.
  • Page 3 SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check 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. LEAKAGE The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a...
  • Page 4 CD-TEXT TEST DISC This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display. To check, perform the following procedure. Checking Method: 1.
  • Page 5 Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is no a fault.) TRACK Recorded Contents ! ” # $ % & ´ + , – . / 0 1 2 3 4 5 6 7 8 9 : ;...

  • Page 6: General

    LOCATION OF PARTS AND CONTROLS Front Panel STANDBY @¡ X-FADE NO DELAY @™ MEGA CONTROL @£ 1 I/u (power switch) button 2 Front cover 3 PLAY MODE button 4 REPEAT button 5 GROUP FILE button 6 Display window 7 GROUP 1-5 buttons 8 TIME/TEXT button 9 INPUT button !º...

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 1 two screws CASE, FRONT PANEL 1 two screws 2 case 4 screw (BVTT3 3 two screws (BVTT3 7 claw 1 two screws 8 front panel 5 wire (flat type) (19 core) (CN503) 7 claw 6 three screws...
  • Page 8 CD MECHANISM DECK SECTION 3 two screws 4 ring (B) 9 screw 0 connector (CN51) 0 connector (CN52) 9 screw (BVTT3 !¡ connector (CN61) AUDIO BOARD, MAIN BOARD 1 screw 1 two screws 2 ring (A) 2 reinforcement 5 two screws (BVTP3 (BVTT3 (BVTP3...
  • Page 9 BASE UNIT 1 two screws 3 screw (BTP2.6 (BTP2.6 2 bracket 4 reinforcement (small) 5 two tention springs 7 base unit 6 four screws (PTPWH2.6 BD BOARD, SLED MOTOR (M102) 6 gear (A) (S) 8 gear cover 7 three claws 5 claw 0 two screws 9 gear (B) (RP)
  • Page 10 OPTICAL PICK-UP (KSS-213B/S-N) 3 Remove the optical pick-up to direction of the arrow A . 2 sled shaft 1 claw – 10 –...

  • Page 11: Test Mode

    ADJ MODE 1. Press the I/ button to turn ON the power, and open the front cover. 2. Place the CD on the slit, close the front cover, and chuck the the CD. 3. Press the I/ button to turn OFF the power. Disconnect the power supply from the outlet.
  • Page 12 Partially lit 1 1 DISCS A B C D E F Partially lit 2 1 DISCS Partially lit 3 1 DISCS Partially lit 4 1 DISCS GROUP FILE FLUORESCENT INDICATOR TUBE AND LED CHECK MODE This mode is set by pressing the I/ button while pressing the [CHECK] [PLUS ONE]...
  • Page 13 *3 Aging cycle count function: Functions which displays the number of agings carried out on the Fluorescent indicator tube in numbers. One aging cycle consists of six discs. 1 DISCS DISC TRACK Disc number Track number Aging procedure: Some operating method will be changed depending on if the fol- lowing jig for the aging mode exists or not.

  • Page 14: Mechanical Adjustments

    To adjust the mechanism section, enter the mechanism section adjustment mode. For how to enter the mechanism section adjustment mode, refer to each adjustment section. DISC SENSOR ALIGMENT 1. Make sure that there is no disc in the unit. 2. Connect an oscilloscope to TP501 of the MAIN board. HHOUT D.SENS MAIN board...
  • Page 15 8. Move the holder (sensor) center so that the flat portion center at the top of the D.SENS (CH1) input waveform and the ‘’H” center of HHOUT (CH2) coincide. HHOUT (CH2) waveform D.SENS (CH1) waveform Fixed screw Holder (sensor) 9. Tighten the fixed screw to fix the disc table, then press the 10.
  • Page 16 MAGNET ASSY ALIGMENT 1. Check that there is no disc in the unit and then turn ON the power. Open the door, and set a disc in the PLUS ONE slit. 2. Turn OFF the power, close the door, and while pressing the again.

  • Page 17: Electrical Adjustments

    Note : 1. CD Block is basically designed to operate without adjustment. There- fore, 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 10M impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.
  • Page 18 When a general remote commander is not used: 1. Solder lead wires to TP (DVDD) and TP (TOFF) on the BD board severally. 2. Connect the oscilloscope to TP (TE) of the BD board. 3. Press the I/ button and turn ON the power supply. [PLUS ONE] 4.
  • Page 19 Adjustment Location : [ BD BOARD ] — CONDUCTOR SIDE — IC102 (TOFF) (RF) IC101 (FE) (VC) (TE) [ MAIN BOARD ] — CONDUCTOR SIDE — (GND) R504 R505 IC501 IC201 CN704 CN102 CN103 (PCK) CN101 (DVDD) [ MAIN BOARD ] — COMPONENT SIDE — TP (ADJ) CN603 CN702...

  • Page 20: Diagrams

    SECTION 7 DIAGRAMS • Circuit Boards Location TABLE SENSOR board LED board DISC SENSOR (R) board DISC SENSOR (S) board MAIN board POWER SW board AUDIO board DISPLAY board BD board MOTOR board SW board – 20 –...
  • Page 21 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

  • Page 22: Bd Section

    • Waveforms – BD Section – 1 IC101 $¡ (RFSM) (PLAY MODE) 2 IC101 @º (FE) (PLAY MODE) 560 mVp-p 3 IC101 7 (TE) (PLAY MODE) 460 mVp-p 4 IC102 @¡ (PCK) 6.2 Vp-p 230 ns 5 IC102 $¢ (XOUT) 3.6 Vp-p 16.9344 MHz 6 IC102 ^º...
  • Page 23 CDP-CX57 7-1. BLOCK DIAGRAMS – BD SECTION – OPTICAL PICK-UP BLOCK (KSS-213B/S-N) DETECTOR FIN1 FIN2 TE– FE– AUTOMATIC POWER CONTROL Q103 LASER DIODE TRACKING FOCUS COIL COIL TRACKING COIL DRIVE T– FOCUS/TRACKING COIL DRIVE 2-AXIS IC103 (1/2) DEVICE F –...
  • Page 24 (FOR BD) +7V REGULATOR RECT –12.4V IC202 D203, D204 • Rch is same as Lch. • Signal path +5V REGULATOR IC203(2/2) – 26 – CDP-CX57 S701 COMMAND MODE J701 S-LINK CONTROL A1 AC IN VOLTAGE SELECTOR S201 E MODEL : CD...

  • Page 25: Printed Wiring Board - Bd Section

    CDP-CX57 7-2. PRINTED WIRING BOARD – BD Section – • See page 20 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D151 IC101 IC102 IC103 IC104 Q101 Q102 Q103 – 27 – • See page 21 for Note.

  • Page 26: Schematic Diagram - Bd Section

    See page 49 for IC Pin Function Description. See page 21 for Note. (Page 38) Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié. CDP-CX57 (Page 38) – 30 –...

  • Page 27: Printed Wiring Board - Audio Section

    CDP-CX57 7-4. PRINTED WIRING BOARD – AUDIO Section – • • See page 20 for Circuit Boards Location. See page 21 for Note. • Semiconductor Location Ref. No. Location Ref. No. Location IC701 D201 D202 D203 Q301 Q302 D204 D205...

  • Page 28: Schematic Diagram - Audio Section

    Replace only with part number specified. c : digital out – 33 – Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié. CDP-CX57 – 34 –...

  • Page 29: Printed Wiring Board - Main Section

    CDP-CX57 • Semiconductor Location Ref. No. Location D206 D207 D210 D211 D212 D304 D382 D404 D501 IC201 IC202 IC203 IC501 IC502 (Page 28) IC601 Q201 Q304 Q305 Q380 Q381 Q382 Q383 Q404 Q405 Q481 Q501 Q502 (Page 32) – 35 –...

  • Page 30: Schematic Diagram - Main Section

    (Page 45) – 37 – • See page 53 for IC Pin Function Description. See page 21 for Note. (Page 45) (Page 41) CDP-CX57 (Page 30) (Page 45) (Page 30) (Page 33) (Page 33) (Page 33) • no mark: PLAY •...

  • Page 31: Printed Wiring Boards - Panel Section

    CDP-CX57 7-8. PRINTED WIRING BOARDS – PANEL Section – • See page 20 for Circuit Boards Location. • See page 21 for Note. (Page 36) (Page 40) – 39 – (Page 39) • Semiconductor Location (DISPLAY Board) Ref. No. Location Ref.

  • Page 32: Schematic Diagram - Panel Section

    CDP-CX57 7-9. SCHEMATIC DIAGRAM – PANEL Section – • • • See page 22 for Waveform. See page 48 for IC Block Diagram. See page 21 for Note. (Page 38) – 41 – – 42 –...

  • Page 33: Printed Wiring Boards - Sensor/Motor Section

    7-10. PRINTED WIRING BOARDS – SENSOR/MOTOR Section – • • See page 20 for Circuit Boards Location. See page 21 for Note. (Page 36) (Page 36) (Page 35) – 43 –...
  • Page 34 (Page 36) (Page 31) – 44 –...

  • Page 35: Schematic Diagram - Sensor/Motor Section

    7-11. SCHEMATIC DIAGRAM – SENSOR/MOTOR Section – • See page 21 for Note. (Page 37) (Page 38) (Page 37) (Page 37) (Page 33) – 45 – CDP-CX57...
  • Page 36 • IC Block Diagrams – BD Board – IC101 LA9241M RF DET FIN2 FINI I / V TESI T. SERVO & T. LOGIC F. SERVO & F. LOGIC IC102 LC78622E SLICE LEVEL DEFI CONTROL SYNCRONOUS DETECTION EFM DEMODULATION VCO CLOCK OSCILLATION CLOCK CONTROL VVSS ISET...
  • Page 37 IC103 LA6541 MUTE LEVEL LEVEL VINL SHIFT SHIFT DRIVER DRIVER DRIVER DRIVER LEVEL LEVEL VIN2 SHIFT SHIFT REG OUT REGULATOR RESET REG IN – MAIN Board – IC201 LA5602 V IN REFERENCE VOLTAGE OVER CURRENT LIMITTER OVER HEAT PROTECTION ON/OFF RESET CDEL V OUT...
  • Page 38 IC601 BA6780 VIN1 VIN2 FIN1 FIN2 RIN1 RIN2 IOUT VREF VREG FBIN- FBIN+ OUT2+ OUT1+ OUT2- – DISPLAY Board – IC903 M66310FP – 48 –...

  • Page 39: Ic Pin Function Description

    7-12. IC PIN FUNCTION DESCRIPTION • BD BOARD IC101 LA9241M (RF AMPLIFIER, FOCUS/TRACKING/SLED SERVO) Pin No. Pin Name Signal input (B+D) from the optical pick-up detector FIN2 Added with FIN1 to create RF signal, subtracted with FIN1 to create focus error signal FIN1 Signal input (A+C) from the optical pick-up detector Signal input (E) from the optical pick-up detector...
  • Page 40 Pin No. Pin Name CLV error signal input from the DSP (IC102) RFSM Playback EFM RF signal output to the DSP (IC102) Works together with the RFSM (pin $¡) to set the RF gain and the 3T compensation constant for RFS–...
  • Page 41 • BD BOARD IC102 LC78622E (DIGITAL SIGNAL PROCESSOR, DIGITAL FILTER, D/A CONVERTER) Pin No. Pin Name DEFI Defect detection signal input from the RF amplifier (IC101) PLL test input terminal Not used (fixed at “L”) PLL phase comparison output for external VCO control VVSS —...
  • Page 42 Pin No. Pin Name MUTER Line muting on/off control signal output terminal (for R-ch side) “H”: muting on XVDD — Power supply terminal (+5V) (crystal oscillator system) XOUT System clock output terminal (16.9344 MHz) System clock input terminal (16.9344 MHz) XVSS —...
  • Page 43 • MAIN BOARD IC501 CXP84340-071Q (SYSTEM CONTROLLER) Pin No. Pin Name 1 to 5 A3 to A7 Address signal output to the static RAM (IC502) 8 to 11 A11 to A8 Data write enable signal output to the static RAM (IC502) “L” active LDIN Loading motor drive signal (load-in direction) output to the BA6780 (IC601) “H”...
  • Page 44 Pin No. Pin Name SQOUT Subcode Q data input from the DSP (IC102) COIN Command serial data output to the RF amplifier (IC101) and DSP (IC102) SCLK Serial data transfer clock signal output to the CD text decoder (IC104) “L” active SRDT Serial data input from the CD text decoder (IC104) Not used (open)

  • Page 45: Exploded Views

    NOTE: • -XX and -X mean standardized parts, so they may have some difference from the original one. • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) Parts Color Cabinet's Color • Abbreviation AED : North Europe : Singapore CND : Canadian AUS : Australia...
  • Page 46 (2) FRONT PANEL SECTION Ref. No. Part No. Description 4-997-019-01 LID (F) 4-997-020-01 WINDOW (LID) 4-997-018-01 LID (R) 4-988-675-01 CUSHION (STOPPER) * 55 4-988-674-01 CUSHION (CLOSE) 4-989-312-01 LATCH, NS 3-008-600-01 EMBLEM (5-AR), SONY 4-997-062-11 PANEL, FRONT 4-991-156-01 INDICATOR (POWER) 4-991-152-11 BUTTON (POWER) * 61 1-668-578-11 POWER SW BOARD 4-951-620-01 SCREW (2.6X8), +BVTP...
  • Page 47 (3) CHASSIS SECTION not supplied not supplied Ref. No. Part No. Description 4-988-439-01 HOLDER, TABLE 4-990-028-01 RING (A) 4-988-434-01 TABLE (50) 4-957-577-21 SCREW PTP WH (2.6X8) (DIA. 10) * 105 A-4724-008-A AUDIO BOARD, COMPLETE (E) * 105 A-4724-011-A AUDIO BOARD, COMPLETE (US, CND) * 105 A-4724-014-A AUDIO BOARD, COMPLETE * 106...
  • Page 48 (4) MECHANISM DECK SECTION-1 (CDM-46C2) not supplied Ref. No. Part No. Description * 301 1-663-975-11 SW BOARD * 302 4-988-427-01 COVER, CAM 4-988-420-01 SLIDER (LOADING) 4-988-436-01 SPRING (LOADING), TORSION 4-988-418-01 HOLDER (A), DISC * 306 4-988-417-01 SLIDER (CAM) 4-988-433-01 SLIDER (LOCK) X-4948-020-1 LEVER (LOADING) ASSY 4-988-438-01 SPRING (LEVER), TENSION 4-988-437-01 SPRING (HOLDER), TORSION...
  • Page 49 (5) MECHANISM DECK SECTION-2 (CDM-46C2) Ref. No. Part No. Description * 351 1-663-971-11 TABLE SENSOR BOARD 4-988-414-01 BELT 4-988-423-01 GEAR (A) (LOADING) 4-988-425-01 PULLEY 4-988-424-01 GEAR (TABLE) 4-988-432-01 GEAR (B) (LOADING) Remark Ref. No. Part No. * 357 4-988-426-01 BASE (CDM) * 358 1-663-972-11 DISC SENSOR (R) BOARD * 359...
  • Page 50 (6) OPTICAL PICK UP SECTION (KSS-213B/S-N) not supplied Ref. No. Part No. Description ! 401 8-848-379-31 OPTICAL PICK-UP KSS-213B/S-N 2-626-907-01 GEAR (A) (S) 2-627-003-02 GEAR (B) (RP) 2-626-908-01 SHAFT, SLED * 405 A-4724-006-A BD BOARD, COMPLETE * 406 4-992-054-01 RUBBER, VIBRATION PROOF M102 M101 The components identified by...
  • Page 51 NOTE: • Due to standardization, replacements in the parts list may be different from the parts speci- fied in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may have some difference from the original one.
  • Page 52 AUDIO Ref. No. Part No. Description R316 1-249-428-11 CARBON 8.2K R318 1-247-895-00 CARBON 470K R319 1-249-421-11 CARBON 2.2K R321 1-249-421-11 CARBON 2.2K R331 1-249-420-11 CARBON 1.8K R332 1-249-421-11 CARBON 2.2K R335 1-247-895-00 CARBON 470K R401 1-249-417-11 CARBON R402 1-249-429-11 CARBON R403 1-249-432-11 CARBON R404...
  • Page 53 Ref. No. Part No. Description < DIODE > D151 8-719-991-33 DIODE 1SS133T-77 < IC > IC101 8-759-498-93 IC LA9241M IC102 8-759-449-65 IC LC78622E IC103 8-759-449-66 IC LA6541 IC104 8-759-428-57 IC LC89170M < JUMPER RESISTOR > 1-216-295-00 SHORT 1-216-295-00 SHORT 1-216-295-00 SHORT 1-216-295-00 SHORT 1-216-295-00 SHORT 1-216-295-00 SHORT...
  • Page 54 DISC SENSOR (S) DISPLAY Ref. No. Part No. Description 1-663-973-11 DISC SENSOR (S) BOARD ********************* 4-976-473-01 HOLDER (LED-S) < CONNECTOR > * CN53 1-568-951-11 PIN, CONNECTOR 2P < DIODE > 8-719-055-84 DIODE GL-528VS1 (DISC SENSOR) < RESISTOR > 1-249-409-11 CARBON ************************************************************ A-4724-009-A DISPLAY BOARD, COMPLETE ***********************...
  • Page 55 Ref. No. Part No. Description 1-668-581-11 LED BOARD ********* < CONNECTOR > CNP841 1-506-481-11 PIN, CONNECTOR 2P < LED > D841 8-719-057-10 LED LNJ301MPUJAB D842 8-719-057-09 LED LNJ801LPDJA (INSIDE ILLUMINATION) D843 8-719-064-21 LED LNJ801TPSJA (INSIDE ILLUMINATION) < RESISTOR > R841 1-249-407-11 CARBON R842 1-249-410-11 CARBON...
  • Page 56 MAIN MOTOR POWER SW Ref. No. Part No. Description R503 1-249-429-11 CARBON R504 1-249-429-11 CARBON R505 1-249-429-11 CARBON R506 1-249-427-11 CARBON 6.8K R507 1-249-427-11 CARBON 6.8K R508 1-249-427-11 CARBON 6.8K R509 1-249-429-11 CARBON R510 1-249-429-11 CARBON R511 1-249-429-11 CARBON R512 1-249-429-11 CARBON R513 1-249-429-11 CARBON...
  • Page 57 Ref. No. Part No. Description ! 108 1-696-845-11 CORD, POWER (AUS) ! 108 1-751-529-11 CORD, POWER (UK) ! 109 1-569-007-11 ADAPTOR, CONVERSION 2P (E) 1-782-465-11 WIRE (FLAT TYPE) (16 CORE) 1-769-921-11 WIRE (FLAT TYPE) (9 CORE) 1-777-874-11 WIRE (FLAT TYPE) (16 CORE) ! 401 8-848-379-31 OPTICAL PICK-UP KSS-213B/S-N 1-777-874-11 WIRE (FLAT TYPE) (16 CORE)
  • Page 58 CDP-CX57 Sony Corporation 98D0589-1 Printed in Japan © 1998. 4 9-922-818-11 Home A&V Products Company Published by Quality Assurance Dept. – 68 – (Shibaura)

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