Sony CDP-CX240 Service Manual
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Sony CDP-CX240 Service Manual

Sony CDP-CX240 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
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L 13942296513
www
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MICROFILM
http://www.xiaoyu163.com
x
ao
u163
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i
http://www.xiaoyu163.com
CDP-CX240
2 9
8
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Type
Optical Pick-up Type
Q Q
SPECIFICATIONS
3
6 7
1 3
1 5
co
.
– 1 –
9 4
2 8
US Model
Canadian Model
CDP-CX250
CDM-40B
KSM-213BKN/M-N
KSS-213B/S-N
0 5
8
2 9
9 4
2 8
m
COMPACT DISC PLAYER
9 9
9 9

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Summary of Contents for Sony CDP-CX240

  • Page 1 CDP-CX240 3 7 63 1515 0 SERVICE MANUAL US Model Canadian Model Model Name Using Similar Mechanism CDP-CX250 CD Mechanism Type CDM-40B Base Unit Type KSM-213BKN/M-N Optical Pick-up Type KSS-213B/S-N SPECIFICATIONS L 13942296513 COMPACT DISC PLAYER u163 MICROFILM – 1 –...
  • Page 2 LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. – 2 –...

  • Page 3: Table Of Contents

    http://www.xiaoyu163.com SECTION 1 SERVICING NOTE 3 7 63 1515 0 TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. SERVICING NOTE ............3 The laser diode in the optical pick-up block may suffer electrostatic 2. GENERAL ................
  • Page 4 http://www.xiaoyu163.com 3 7 63 1515 0 CD-TEXT TEST DISC This unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:J-2501-126-A) is used for checking the display. To check, perform the following procedure.
  • Page 5 http://www.xiaoyu163.com 3 7 63 1515 0 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 Display ! ” # $ % & ´ (21h to 27h)1kHz 0dB L&R N All the same N All the same...

  • Page 6: General

    http://www.xiaoyu163.com SECTION 2 3 7 63 1515 0 GENERAL Front Panel 9 10 11 12 13 L 13942296513 LOCATION OF PARTS AND CONTROLS 1 1/u (power) button 2 STANDBY indicator 3 Display window 4 Front cover 5 MEGA control button and indicator 6 X-FADE button 7 INPUT button 8 DISC/CHARACTOR dial and PUSH ENTER button...

  • Page 7: Disassembly

    http://www.xiaoyu163.com SECTION 3 DISASSEMBLY 3 7 63 1515 0 Note : Follow the disassembly procedure in the numerical order given. 3-1. FRONT PANEL ASSEMBLY 6 Remove the claw 1 Two screws (BVTP3x8) 2 Two screws (BVTP 3x8) 7 Front panel assembly 5 Remove the claw 4 Flat type wire (17 core) (Main board, CN501)

  • Page 8: Base (Door, Gear) Assembly

    http://www.xiaoyu163.com 3 7 63 1515 0 3-3. BASE (DOOR, GEAR) ASSEMBLY 2 Three screws (BVTT3x6) MAIN board 4 Connector (CN503) 5 Guide assembly 3 Screw (PSW3x6) 1 Screw (BVTT3x6) 6 Door (CD) assembly 8 Three screws (BVTT3x6) L 13942296513 9 Base (Door, Gear) assembly 7 Three screws (BVTT3x6) 3-4.

  • Page 9: Mechanism Deck

    http://www.xiaoyu163.com 3 7 63 1515 0 3-5. MECHANISM DECK 1 Flat type wire 5 Mechanism deck (23core) (CN502) Main board Jack board Main board 2 Connector (CN904) 3 Connector (CN505) L 13942296513 4 Nine screws (BVTT3x8) 3-6. BASE UNIT 1 Screw (BVTT3x6) 2 Fulcrum plate (BU Upper) assembly 3 Base unit u163...

  • Page 10: Test Mode

    http://www.xiaoyu163.com SECTION 4 TEST MODE 3 7 63 1515 0 4-1. DISPLAY CHECK MODE 4-3. KEY AND DISPLAY CHECK MODE With the power turned off (standby state), press the 1/u button To set this mode, connect the test point (AFADJ) on the MAIN while pressing the P (pause) button.
  • Page 11 http://www.xiaoyu163.com 3 7 63 1515 0 4-4. AGING MODE Special Aging Mode Functions The aging mode is provided with the following convenient functions • Disc setting mode (*1) Aging Mode • Selection of presence of protection function during error (*2) •...
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 Aging Method 1. Turn ON the power of the unit. Press the § OPEN/CLOSE and 7. Press the ( button. 8. The ( LED blinks, the aging mode is set, and aging is started. open the front cover.

  • Page 13: Adjustments

    http://www.xiaoyu163.com SECTION 5 ADJUSTMENTS 3 7 63 1515 0 5-1. MECHANICAL ADJUSTMENT Perform the following steps before carrying out adjustments. 1. Turn ON the power of the unit, set disc to disc table No. 92, and perform chucking. 2. Turn OFF the power. 3.
  • Page 14 http://www.xiaoyu163.com 3 7 63 1515 0 GUIDE (DISC T) ALIGNMENT Holder (guide T) Fixed screw Guide (disc T) (1) Rotate the cam and adjust to the position shown in the figure. (2) Check that the state is as Guide (disc T) shown in the figure.
  • Page 15 http://www.xiaoyu163.com 3 7 63 1515 0 HOLDER (DISC A) ALIGNMENT Holder (disc A) Thrust screw (1) Rotate the cam and adjust to the position shown in the figure. Disc 0 - 1mm Holder (disc A) L 13942296513 (2) Check that the state is as shown in the figure.
  • Page 16 http://www.xiaoyu163.com 3 7 63 1515 0 SENSOR ALIGNMENT CAUTION: Perform this adjustment after the “holder (disc A) adjustment”. The LED may not light up in steps (3) and (4) for some If the disc table swings to the left and right just before the disc is microprocessor versions, and consequently adjustments will not chucked, perform the following adjustment.
  • Page 17 http://www.xiaoyu163.com 3 7 63 1515 0 PULLY AND DISC CENTER HOLE ALIGNMENT Base unit Bracket (BU adjustment) (1) Rotate the cam and adjust to the position shown in the figure. Magnet assembly (2) Check that the state is as shown in the figure.
  • Page 18 http://www.xiaoyu163.com 3 7 63 1515 0 MAGNET ASSY ALIGNMENT Adjustment screw Magnet assembly (1) Rotate the cam and adjust to the position shown in the figure. Disc Magnet holder L 13942296513 Magnet assembly Adjustment screw (3) Apply suitable locking compaund to the part after adjusting.

  • Page 19: Electrical Block Checking

    http://www.xiaoyu163.com 3 7 63 1515 0 5-2. ELECTRICAL BLOCK CHECKING Note: A clear RF signal waveform means that the shape “◊” can be clearly distinguished at the center of the waveform. Note: RF signal waveform 1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 Disc Sensor Adjustment Procedure: 1. Connect the oscilloscope to Pins 1, 2, and 4 of CN506 of the Perform this adjustment after completing all adjustments of the MAIN board. Also connect a 1 kΩ resistor to Pin 4 at the same mechanism section.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 14. After the adjustment, load a disc only in slit 1, and press the 1/ u button to turn off the power. 15. Press the 1/u button while pressing the PUSH ENTER button to turn on the power. 16.

  • Page 22: Diagrams

    http://www.xiaoyu163.com SECTION 6 DIAGRAMS 3 7 63 1515 0 6-1. CIRCUIT BOARDS LOCATION D.SENS (LUMINOUS) board ILLUMINATION board T.SENS board MAIN board DISP board JACK board KEY BOARD board T.MOTOR board JOG board D.SENS (RAY-CATCHER) board L 13942296513 DOOR SW board DOOR MOTOR board BD board L.SW board...

  • Page 23: Block Diagrams

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-2. BLOCK DIAGRAMS IC101 – BD SECTION – DIGITAL SIGNAL PROCESSOR OPTICAL PICK-UP IC103 BLOCK (KSS-213B) RF AMP LASER DIODE POWER IC901 APC LD DIGITAL DOUT DIGITAL OPTICAL DRIVE...

  • Page 24: Main Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 – MAIN SECTION – D505 T901 J903 –30V REG –B POWER Q501 RECT TRANSFORMER MUTE 2ND CD IN Q324 D507 IC401 L901 IC302(1/2) IC302(2/2) MIX AMP LINE FL701 AC IN...
  • Page 25 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 WAVEFORMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) 3.1Vp-p For schematic diagrams. 16.9MHz Note: IC101 ^§...

  • Page 26: Schematic Diagram - Bd Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-3. SCHEMATIC DIAGRAM – BD SECTION – • See page 28 for Waveforms. • See page 47 for IC Block Diagrams. • See page 50 for IC Pin Functions.

  • Page 27: Printed Wiring Board - Bd Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-4. PRINTED WIRING BOARD – BD SECTION – • See page 22 for Circuit Boards Location. 1 3 9 4 2 2 9 6 5 1 3 (Page 34)

  • Page 28: Printed Wiring Board - Main Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-5. PRINTED WIRING BOARD – MAIN SECTION – • See page 22 for Circuit Boards Location. • Semiconductor (Page 44) (Page 46) (Page 46) Location Ref. No. Location D325...

  • Page 29: Schematic Diagram - Main (1/2) Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-6. SCHEMATIC DIAGRAM – MAIN (1/2) SECTION – • See page 28 for Waveforms. • See page 49 for IC Block Diagrams. • See page 52 for IC Pin Functions.

  • Page 30: Schematic Diagram - Jack Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-7. SCHEMATIC DIAGRAM – JACK SECTION – • See page 22 for Waveforms. • See page 33 for Printed Wiring Board (MAIN BOARD). • See page 49 for IC Block Diagrams.

  • Page 31: Printed Wiring Board - Jack Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-8. PRINTED WIRING BOARD – JACK SECTION – • See page 22 for Circuit Boards Location. (Page 33) (Page 34) T901 POWER TRANSFORMER JW903 1 3 9 4 2 2 9 6 5 1 3...

  • Page 32: Schematic Diagram - Display Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-9. SCHEMATIC DIAGRAM – DISPLAY SECTION – • See page 49 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3 w w w...

  • Page 33: Printed Wiring Board - Display Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-10. PRINTED WIRING BOARD – DISPLAY SECTION – • See page 22 for Circuit Boards Location. 1 3 9 4 2 2 9 6 5 1 3 (Page 33) •...

  • Page 34: Schematic Diagram - Sensor/Motor Section

    CDP-CX240 3 7 6 3 1 5 1 5 0 6-12. PRINTED WIRING BOARD – SENSOR/MOTOR SECTION – 6-11. SCHEMATIC DIAGRAM – SENSOR/MOTOR SECTION – • See page 22 for Circuit Boards Location. (Page 33) (Page 35) (Page 35)

  • Page 35: Ic Block Diagrams

    http://www.xiaoyu163.com 3 7 63 1515 0 6-13. IC BLOCK DIAGRAMS • BD section IC101 CXD2587Q ERROR DIGITAL CORRECTOR DIGITAL ASYMMETRY CORRECTION OPERATIONAL LRCK AMPLIFIER ANALOG SWITCH PCMD INTERFACE DEMODULATOR CONVERTER EMPH XVDD XTAI TIMING LOGIC CLOCK XTAO XTSL GENERATOR XVSS TES1 AVDD1 TEST...
  • Page 36 http://www.xiaoyu163.com 3 7 63 1515 0 IC102 BA6392FP BUFF CH1 OUT F 28 GND BUFF BUFF CH1 OUT R 27 CH4 OUT F LEVEL SHIFT CAPA IN 1 26 CH4 OUT R BUFF CH1 R IN 25 VB IN INTERFACE CH1 F IN 24 VS IN BUFF...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 • Main (1/2) section • Main (2/2) section IC503 CXA1291P IC506 LA5616 VIN1 ON/OFF AMP2 AMP1 CURRENT LIMITER OVERHEAT ON/OFF PROTECT THERMAL SHUT VREF DOWN AND CURRENT LIMITER AMP3 RESET GENERATOR ERROR ERROR VIN2 •...

  • Page 38: Ic Pin Functions

    http://www.xiaoyu163.com 3 7 63 1515 0 6-14. IC PIN FUNCTIONS • IC101 DIGITAL SIGNAL PROCESSOR (CXD2587Q) Pin No. Pin Name Function SQSO Sub-Q 80-bit and PCM peak level data output (CD text data output) SQCK Clock input for SQSO read-out XRST System reset “L”...
  • Page 39 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function Tracking error signal input Center servo analog input RFDC RF signal input ADIO Test pin (Not used) – Analog ground AVSS0 IGEN Stabilized current input for operational amplifiers AVDD0 –...
  • Page 40 http://www.xiaoyu163.com 3 7 63 1515 0 • IC501 SYSTEM CONTROL (CXP84340-094Q) Pin No. Pin Name Function SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM address SRAM writing SRAM enable KBCOUT...
  • Page 41 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function Model select switch input KEY3 Key input KEY2 Key input KEY1 Key input KEY0 Key input BUSIN CONTROL-A1 input L: Active AMUTE Audio mute driver Clock for servo IC and digital filter IC Latch for command DATA Data for command...

  • Page 42: Exploded Views

    http://www.xiaoyu163.com SECTION 7 EXPLODED VIEWS 3 7 63 1515 0 NOTE: The components identified by • Hardware (# mark) list and accessories and packing • Items marked “*” are not stocked since they are mark ! or dotted line with mark materials are given in the last of this parts list.

  • Page 43: Disc Table Section

    http://www.xiaoyu163.com 3 7 63 1515 0 7-2. DISC TABLE SECTION not supplied supplied not supplied not supplied not supplied supplied supplied not supplied L 13942296513 M801 not supplied supplied M810 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 51...

  • Page 44: Front Panel Section

    4-998-523-01 KNOB (JOG) * 109 4-982-811-01 HOLDER (FL) X-4949-663-1 PANEL ASSY, FRONT * 110 A-4724-061-A DISP BOARD, COMPLETE 1-783-365-11 WIRE (FLAT TYPE) (17 CORE) 4-996-698-01 EMBLEM, SONY 3-917-216-21 KNOB (TIMER) 4-985-553-21 CUSHION 4-977-358-11 CUSHION u163 4-996-682-11 INDICATOR * 106 1-669-165-11 KEY BOARD BOARD 4-996-683-21 BUTTON (POWER) 4-951-620-01 SCREW (2.6X8), +BVTP...

  • Page 45: Mechanism Section-1 (Cdm-40B)

    http://www.xiaoyu163.com 3 7 63 1515 0 7-4. MECHANISM SECTION-1 (CDM-40B) not supplied not supplied not supplied L 13942296513 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4947-241-1 LEVER (C) ASSY A-4672-092-A MAGNET ASSY 4-982-882-01 SPRING (LIMITTER), TORSION 3-366-559-02 MAGNET (CHUCK) 4-982-881-01 SPRING (HOLDER), TORSION 4-960-633-01 YOKE (MAGNET)

  • Page 46: Mechanism Section-2 (Cdm-40B)

    http://www.xiaoyu163.com 3 7 63 1515 0 7-5. MECHANISM SECTION-2 (CDM-40B) not supplied not supplied L 13942296513 not supplied M802 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-976-465-01 GEAR (LOADING 1) X-4947-227-1 LEVER (STOPPER) ASSY 4-976-466-01 GEAR (LOADING 2) 4-982-893-01 GEAR (CENTER 2) 4-951-291-01 SCREW X-4947-607-1 GEAR (PULLEY) ASSY...

  • Page 47: Mechanism Section-3 (Cdm-40B)

    http://www.xiaoyu163.com 3 7 63 1515 0 7-6. MECHANISM SECTION-3 (CDM-40B) L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-356-601-11 SCREW, STEP 4-982-872-01 SPRING (F-2), TENSION u163 X-4947-244-1 SLIDER (BU ADJUSTMENT) ASSY 4-982-871-01 SPRING (F-1), TENSION X-4947-243-1 HOLDER (BU) ASSY 4-982-858-01 DAMPER 4-982-859-01 HOLDER (DAMPER)

  • Page 48: Base Unit Section (Ksm-213Bkn/M-N)

    http://www.xiaoyu163.com 3 7 63 1515 0 7-7. BASE UNIT SECTION (KSM-213BKN/M-N) not supplied not supplied not supplied M101 L 13942296513 not supplied M102 Les composants identifiés par une The components identified by marque ! sont critiques pour la mark ! or dotted line with mark ! are critical for safety.

  • Page 49: Electrical Parts List

    http://www.xiaoyu163.com SECTION 8 ELECTRICAL PARTS LIST 3 7 63 1515 0 Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts list The components identified by In each case, u: µ , for example: may be different from the parts specified in the mark ! or dotted line with mark uA...: µ...

  • Page 50: Www Ao

    http://www.xiaoyu163.com D.SENS (LUMINOUS) D.SENS (RAY CATCHER) DISP 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R138 1-216-295-91 SHORT C707 1-162-282-31 CERAMIC 100PF R143 1-216-103-00 METAL CHIP 180K 1/10W C708 1-162-282-31 CERAMIC 100PF R144 1-216-103-00 METAL CHIP...
  • Page 51 http://www.xiaoyu163.com DISP DOOR MOTOR DOOR SW ILLUMINATION JACK 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R733 1-249-417-11 CARBON 1/4W F < DIODE > R734 1-249-419-11 CARBON 1.5K 1/4W F R735 1-249-421-11 CARBON 2.2K 1/4W F...
  • Page 52 http://www.xiaoyu163.com JACK L.MOTOR L.SW MAIN 3 7 63 1515 0 Ref. No. Part No. Ref. No. Description Part No. Description Remark Remark R902 1-249-425-11 CARBON 4.7K 1/4W F S626 1-572-184-11 SWITCH, KEYBOARD (FADER) R903 1-249-429-11 CARBON 1/4W S627 1-572-184-11 SWITCH, KEYBOARD (MEGA CONTROL) R921 1-249-429-11 CARBON 1/4W...
  • Page 53 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C405 1-126-022-11 ELECT 47uF D509 8-719-911-19 DIODE 1SS119-25 C501 1-128-489-11 ELECT 3300uF D521 8-719-911-19 DIODE 1SS119-25 C502 1-124-360-00 ELECT 1000uF < IC > C503 1-124-122-11 ELECT 100uF...
  • Page 54 http://www.xiaoyu163.com MAIN T.MOTOR T.SENS 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R321 1-249-421-11 CARBON 2.2K 1/4W F R544 1-249-429-11 CARBON 1/4W R322 1-249-421-11 CARBON 2.2K 1/4W F R323 1-249-421-11 CARBON 2.2K 1/4W F R551...
  • Page 55 http://www.xiaoyu163.com T.SENS 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC803 8-749-924-18 IC PHOTO INTERRUPTER RPI-1391 ************** (TABLE SENSOR) HARDWARE LIST ************** < RESISTOR > 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S R801 1-249-416-11 CARBON 1/4W F...
  • Page 56 CDP-CX240 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 98F097024-1D Printed in Singapore © 1998. 6 9-922-884-11 Home A&V Products Company Published by Quality Assurance Dept. – 68 – (Shibaura) http://www.xiaoyu163.com...

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