Sony MXD-D4 Service Manual
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Sony MXD-D4 Service Manual

Sony MXD-D4 Service Manual

Compact disc minidisc deck
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SERVICE MANUAL
U.S. and foreign patents licensed form Dolby
Laboratories Licensing Corporation.
CD player section
System
Compact Disc digital audio system
Laser
Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Less than 44.6 µW*
Laser output
* 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.
5 to 20,000 Hz ±0.5 dB
Frequency response
Signal-to-noise ratio
More than 98 dB
Wow and flutter
Below measurable limit
MD deck section
System
MiniDisc digital audio system
Disc
MiniDisc
Laser
Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Less than 44.6 µW*
Laser output
* 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.
Laser diode properties Material: GaAlAs
Revolutions (CLV)
800 rpm to 1,800 rpm
Error correction
Advanced Cross Interleave Reed
Solomon Code (ACIRC)
Sampling frequency
44.1 kHz
Coding
Adaptive TRansform Acoustic Coding
(ATRAC)/ATRAC 3
Modulation system
EFM (Eight-to-Fourteen Modulation)
Number of channels
2 stereo channels
MXD-D4
Photo: Black type
Model Name Using Similar Mechanism
MD
MD Mechanism Type
Section
Optical Pick-up Name
Model Name Using Similar Mechanism
CD
CD Mechanism Type
Section
Base Unit Name
Optical Pick-up Name
SPECIFICATIONS
Frequency response
Signal-to-noise ratio
Wow and flutter
Inputs
Jack type Input
Phono
ANALOG IN
jacks
Square
DIGITAL
optical
OPTICAL IN
connector
jack
Outputs
Jack type
Stereo phone
PHONES
jack
Phono jacks
ANALOG
OUT
COMPACT DISC MINIDISC DECK
US Model
Canadian Model
AEP Model
UK Model
E Model
MXD-D5C
MDM-7X2A
KMS-262A/J1N
NEW
CDM55B-21BD53
BU-21BD53
OP Assy (A-MAX.2)
5 to 20,000 Hz ±0.5 dB
Over 96 dB during playback
Below measurable limit
Rated
Minimum
impedance
input
input
47 kilohms
500 mVrms 125 mVrms
Optical wave
length:
—
—
660 nm
Rated output
Load impedance
10 mW
32 ohms
2 Vrms
Over 10 kilohms
(at 50 kilohms)
– Continued on next page –

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  • Page 1 MXD-D4 SERVICE MANUAL US Model Canadian Model AEP Model UK Model E Model Photo: Black type Model Name Using Similar Mechanism MXD-D5C U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation. MD Mechanism Type MDM-7X2A Section Optical Pick-up Name...

  • Page 2: Self-Diagnosis Function

    E0101/LASER NG There ia a problem with the optical pick-up. , The optical pick-up may have failed. Consult your nearest Sony dealer. PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE) Note: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required procedure. Be [MENU/NO] careful not to enter other modes by mistake.
  • Page 3 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Selecting the Test Mode Display Details of History op rec tm Cumulative recording time is displayed. When cumulative recording time is over 1 minute, the hour and minute are displayed as they are. When it is under 1 minute, “Under 1 min”...

  • Page 4: Table Of Contents

    OPERATION. REPLACE THESE COMPONENTS WITH DE FONCTIONNEMENT. NE REMPLACER CES COM- SONY PARTS WHOSE PART NUMBERS APPEAR AS POSANTS QUE PAR DES PIÈCES SONY DONT LES SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- NUMÉROS SONT DONNÉS DANS CE MANUEL OU LISHED BY SONY.
  • Page 5 SAFETY CHECK-OUT CAUTION After correcting the original service problem, perform the follow- Danger of explosion if battery is incorrectly replaced. ing safety check before releasing the set to the customer: Replace only with the same or equivalent type recommended by Check the antenna terminals, metal trim, “metallized”...

  • Page 6: Servicing Notes

    SECTION 1 SERVICING NOTES CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP • In cleaning the objective lens of optical pick-up, be sure the following below. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. In cleaning the lens, do not apply an excessive force. The laser diode in the optical pick-up block may suffer electro- As the optical pick-up is vulnerable, application of excessive static break-down because of the potential difference generated...
  • Page 7 MD SECTION JIG FOR CHECKING BD (MD) BOARD WAVEFORM The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items to be performed are shown as follows. GND : Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) : Tracking error signal (Traverse adjustment)
  • Page 8 IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD (MD) BOARD) ARE REPLACED The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the optical pick-up label.
  • Page 9 CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”. Criteria for Determination Measure if unsatisfactory: (Unsatisfactory if specified value is not satisfied) Laser power check •...
  • Page 10 SERVICE MODE This set provides various modes for the service. Enter the service mode through the procedure given below, and select the desired mode. Procedure: [YES] 1. Press the (CD), (MD) and buttons at the same time. 2. Press the (MD) knob and (MD) button to display “...
  • Page 11 Microcomputer Version Display Procedure: 1. Enter the service mode, then turn (MD) knob to display “<Version> 1”, and press the (MD). 2. The CD microcomputer version is displayed, and then press the (MD) knob, and the MD microcomputer version and the display microcomputer version will be displayed. 3.
  • Page 12 RETRY CAUSE DISPLAY MODE IN MD • In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. During playback, the “track mode” for obtaining track information will be set. This is useful for locating the faulty part of the unit.
  • Page 13 Reading the Retry Cause Display Higher Bits Lower Bits Hexa- Details Hexadecimal decimal When 0 When 1 b7 b6 b5 b4 b3 b2 b1 b0 Binary Emphasis OFF Emphasis ON Monaural Stereo This is 2-bit display. Normally 01. 01:Normal audio. Others:Invalid Audio (Normal) Invalid Original...
  • Page 14 CD SECTION • In checking the CD block and MAIN board, prepare jig. • In checking the CD block, prepare jig (extension cable J-2501-075-A) to connect the BD (CD) board (CN101) and MAIN board (CN302). • In checking the MAIN board, prepare jig (extension cable J-2501-094-A) to connect the MAIN board (CN802) and DISPLAY board (CN951).
  • Page 15 Table 2: CD-TEXT TEST DISC Recorded Contents and Display (In this unit, some special characters cannot be displayed. This is not a fault) TRACK Recorded contents Display T All the same ! ” # $ % & ´ (21h to 27h)1kHz 0dB L&R T All the same + , –...

  • Page 16: General

    SECTION 2 This section is extracted from instruction manual. GENERAL Front view Rear view 5 6 78 9 q; qa 1 2 3 1 STANDBY indicator 1 ANALOG IN jack 2 ?/1 (power) button 2 ANALOG OUT jack 3 DIGITAL OPTICAL IN terminal 3 REC-IT button 4 AC power cord 4 CD tray...

  • Page 17: Disassembly

    SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. LOADING PANEL CASE (Page 18) (Page 18) CASE MD MECHANISM DECK MAIN BOARD (Page 18) (MDM-7X2A) (Page 25) (Page 19) FRONT PANEL ASS'Y CD MECHANISM DECK BD (MD) BOARD (Page 19) (CDM55B-21BD53)
  • Page 18 Note: Follow the disassembly procedure in the numerical order given. LOADING PANEL 4 loading panel 3 two claws CASE 1 two screws (case3 TP2) 1 two screws (case3 TP2) 2 case 1 two screws (case3 TP2)
  • Page 19 FRONT PANEL ASS’Y 1 wire (flat type) (18 core) (CN305) 4 three screws (BVTT3 × 6) 2 connector (CN300) 5 two lugs 6 claw 7 front panel ass’y 6 claw 3 six screws (BVTT3 × 6) MD MECHANISM DECK SECTION (MDM-7X2A) 4 four screws (BVTTWH M3) 5 MD mechanism deck...
  • Page 20 BD (MD) BOARD 5 Remove the solder (four portions). 1 wire (flat type) (17 core) 2 wire (flat type) (27 core) 7 BD (MD) board 3 connector (CN104) 8 flexible board (CN104) 4 Remove the solder (five portions). 6 two screws (BTP2 × 6) HOLDER ASS’Y 1 claw 2 holder ass’y...
  • Page 21 GUIDE (L), SLIDER (EJ), SLIDER, LEVER (HEAD) 4 slider (EJ) 3 slider 2 guide (L) 1 two screws (BTP2 × 6) 6 lever (head) 5 lever (CHG) OPTICAL PICK-UP (KMS-262A/J1N), OVER LIGHT HEAD (HR901) 9 optical pick-up (KMS-262A/J1N) over light head (HR901) 8 main shaft 7 screw (KTP2 ×...
  • Page 22 SPINDLE MOTOR ASS’Y (M101), SLED MOTOR ASS’Y (M102), LOADING MOTOR ASS’Y (M103) 1 belt (loading) 4 two screws (PWH1.7 × 2.5) 2 two screws (PWH1.7 × 2.5) 3 loading motor ass’y (M103) 5 sled motor ass’y (M102) 7 spindle motor ass’y (M101) 6 three screws (M1.7)
  • Page 23 HOLDER (BU) ASS’Y 2 floating screw (PTPWH M2.6) 4 holder (BU) ass’y 1 Rotate the lever (SW) in the direction of the arrow. BU-21BD53, HOLDER (55-BU21) 1 three floating screws (DIA. 12) 2 floating screw (PTPWH M2.6) 5 base unit (BU-21BD53) 4 insulator (BU21) 4 three insulators...
  • Page 24 TRAY, LOADING BOARD 2 belt (CDM55) claw 1 Rotate the gear (B) in the direction of arrow A. 3 Pull the tray pushing claw. 5 LOADING board 4 two screws (BTP2.6 × 8) CAM (CDM55) 3 spacer (55) 4 pulley (LDG) 6 gear (B) 5 gear (A) 1 torsion spring...
  • Page 25 MAIN BOARD 1 wire (flat type) (21 core) 1 wire (flat type) (18 core) (CN302) (CN305) 2 connector (CN301) 5 main board 3 three screws 1 two wires (flat type) (BVTT 3 × 6) (17, 27 core) (CN303, 304) 2 connector (CN300) 4 two screws (BVTT 3 ×...

  • Page 26: Test Mode

    SECTION 4 TEST MODE MD SECTION Note: MD always plays double speed. 1. PRECAUTIONS FOR USE OF TEST MODE • As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it.

  • Page 27: Selecting The Test Mode

    5. SELECTING THE TEST MODE There are 26 types of test modes as shown below. The groups can be switched by turning the (MD) knob. After selecting [YES] the group to be used, press the button. After setting a certain group, turn the (MD) knob switches between these modes.
  • Page 28 5-1. Operating the Continuous Playback Mode 1. Entering the continuous playback mode (1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available) (2) Turn the (MD) knob and display “CPLAY2MODE” (C36). [YES] (3) Press the button to change the display to “CPLAY2MID”.
  • Page 29 7. TEST MODE DISPLAYS [DISPLAY] Each time the button is pressed, the display changes in the following order. When CPLAY and CREC are started, the display will forcibly be switched to the error rate display as the initial mode. 1. Mode display Displays “TEMP ADJUST”...
  • Page 30 8. AUTOMATIC SELF-DIAGNOSIS FUNCTION This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked. Perform AUTO CHECK after the laser power check and Iop check. Procedure: [YES] 1.
  • Page 31 CD SECTION Set the CD test mode when performing confirmations (refer to page 10). After completing confirmation, release the CD test mode. 1. COMMAND TRANSFER MENU Procedure: (1) Enter the test mode, then rotate (MD) knob to display “0> COMMAND”, and press the (MD) knob.

  • Page 32: Electrical Adjustments

    SECTION 5 ELECTRICAL ADJUSTMENTS MD SECTION Note: MD always plays double speed. 1. PARTS REPLACEMENT AND ADJUSTMENT If malfunctions caused by Optical pick-up such as sound skipping are suspected, follow the following check. Check before replacement Start 6-2. Laser Power Check (See page 35) 6-3.
  • Page 33 Adjustment flow • Abbreviation Start OP: optical pick-up After turning off and then on the power, initialize the EEPROM Replace IC195 For details, refer to 10. WHEN MEMORY NG IS DISPLAYED (See page 30) INITIAL SETTING OF ADJUSTMENT VALUE Replace OP or IC195 (See page 38) TEMPERATURE COMPENSATION OFFSET Replace IC101, IC195, or D101...
  • Page 34 2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSION To check the emission of the laser diode during adjustments, never view directly from the top as this may lose your eye-sight. 3. PRECAUTIONS FOR USE OF OPTICAL PICK- UP (KMS-262A) As the laser diode in the optical pick-up is easily damaged by static electricity, solder the laser tap of the flexible board when using it.
  • Page 35 5. USING THE CONTINUOUSLY RECORDED DISC Checking Procedure: 1. Set the laser power meter on the objective lens of the optical * This disc is used in focus bias adjustment and error rate check. pick-up. (When it cannot be set properly, press the m button The following describes how to create a continuous recording or M button to move the optical pick-up.) disc.
  • Page 36 6-4. Auto Check 6-6. Traverse Check This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To Note 1:Data will be erased during MO reading if a recorded disc is used in this adjustment. perform this test mode, the laser power must first be checked.
  • Page 37 [YES] 6-7. Focus Bias Check 9. Press the button to display “EFB = MO-P”. Then, the optical pick-up moves to the pit area automatically Change the focus bias and check the focus tolerance amount. and servo is imposed. Checking Procedure: 10.
  • Page 38 7. INITIAL SETTING OF ADJUSTMENT VALUE 9. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT Note: Save the temperature data at that time in the non-volatile memory Mode which sets the adjustment results recorded in the non-volatile as 25 ˚C reference data. memory to the initial setting value. However the results of the tempera- Note: ture compensation offset adjustment will not change to the initial setting 1.
  • Page 39 6. Turn the (MD) knob so that the reading of 4. After “Complete!” is displayed momentarily, the display changes [YES] the laser power meter becomes 8.2 to 8.6 mW, press the to “Iop 7.0 mW”. [YES] button to save it. 5.
  • Page 40 [YES] 8. Turn the (MD) knob so that the waveform 18. Press the button, display “EFB = SAVE” for a mo- of the oscilloscope becomes the specified value. ment and save the adjustment results in the non-volatile (When the (MD) knob is turned, the memory.
  • Page 41 14. ERROR RATE CHECK 16. AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 14-1. CD Error Rate Check Be sure to perform this adjustment when the optical pick-up is Checking Procedure: replaced. 1. Load the check disc (MD) TDYS-1. If the adjustment results becomes “Adjust NG!”, the optical pick- 2.
  • Page 42 Adjustment and checking Loacation: – BD (MD) BOARD (Component Side) – D101 CN101 – BD (MD) BOARD (Conductor Side) – IC101 CN105 1. I+3V 2. IOP 3. GND 4. TE 5. FE 6. VC 7. RF IC151 IC190 Note: It is useful to use the jig for checking the waveform. (Refer to Ser- vicing Notes on page 7)

  • Page 43: Cd Section

    Note: A clear RF signal waveform means that the shape “◊” can be clearly CD SECTION distinguished at the center of the waveform. Note: RF signal waveform 1. CD Block is basically designed to operate without adjustment. There- VOLT/DIV: 200 mV fore, check each item in order given.
  • Page 44 Voltage Adjustment Checking Location: When replacing the base unit (BU-21BD53), mounted MAIN board – BD (CD) BOARD (Conductor Side) – and IC506, R550, R551, or RV500 on the MAIN board, perform the adjustment with the following procedure. Connection: digital voltmeter MAIN board TP500 (BU+5V) (VC)

  • Page 45: Diagrams

    MXD-D4 SECTION 6 DIAGRAMS DIGITAL SIGNAL PROCESSOR, 6-1. BLOCK DIAGRAM – MD SERVO Section – EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER OVER WRITE EFMO ADDT IC151 (1/2) HEAD DRIVE DATAI ADDT IC181, Q181, 182 SAMPLING (Page 46) RATE...

  • Page 46: Block Diagram - Main Section

    MXD-D4 6-2. BLOCK DIAGRAM – MAIN Section – J300 ADDT DATAO VINL LINE LRCK DIGITAL DECIMATION (Page 45) CANCELLATION CONVERTER INTERFACE FILTER FILTER BLOCK VINR IC305 RESET PWON ANALOG SWITCH CLOCK Q301 SCLK CONTROL A/D CONVERTER IC301 D/A CONVERTER RV301...

  • Page 47: Block Diagram - Display/Power Supply Section

    MXD-D4 6-3. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section – FL/LED DRIVE IC751 REMOTE CONTROL RECEIVER SIRCS S01 – S35 S731 – 736 IC781 KEY2 FLCLK FLUORESCENT G02 – G23 INDICATOR TUBE FLWITE FL751 S741 – 746, FL DRIVE S791 COM01...

  • Page 48: Note For Printed Wiring Boards And Schematic Diagrams

    6-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location (In addition to this, the necessary note is printed in each block) Note on Printed Wiring Board: Note on Schematic Diagram: • X : parts extracted from the component side. •...
  • Page 49 • IC Block Diagrams IC141 BH6511FS – BD (MD) Board – IC101 CXA2523AR 43 42 INTERFACE INTERFACE USROP – RF AGC – CHARGE USRC PREDRIVE PREDRIVE RFA1 PUMP. BPF3T RFA2 RFA3 PEAK3T – HLPT PREDRIVE PREDRIVE –1 – – –2 –...

  • Page 50: Printed Wiring Board - Bd (Cd) Board

    MXD-D4 6-5. PRINTED WIRING BOARD – BD (CD) Board – • See page 48 for Circuit Boards Location. (Page There are a few cases that the part isn't mounted in model is printed on diagrams. Printed wiring board of BD (CD) board is shown only for...

  • Page 51: Schematic Diagram - Bd (Cd) Board

    MXD-D4 6-6. SCHEMATIC DIAGRAM – BD (CD) Board – • See page 55 for Waveforms. (Page The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety.

  • Page 52: Schematic Diagram - Bd (Md) Board (1/2)

    MXD-D4 6-7. SCHEMATIC DIAGRAM – BD (MD) Board (1/2) – • • See page 55 for Waveforms. See page 49 for IC Block Diagrams. (Page (Page (Page 53) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 53: Schematic Diagram - Bd (Md) Board (2/2)

    MXD-D4 6-8. SCHEMATIC DIAGRAM – BD (MD) Board (2/2) – • • See page 55 for Waveforms. See page 49 for IC Block Diagram. (Page (Page (Page (Page (Page Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 54: Printed Wiring Board - Bd (Md) Board

    MXD-D4 6-9. PRINTED WIRING BOARD – BD (MD) Board – • See page 48 for Circuit Boards Location. BD (MD) BOARD FLEXIBLE BOARD BD (MD) BOARD (CONDUCTOR SIDE) (COMPONENT SIDE) 1-678-514- S102-2 PROTECT (LOADING) –1 DETECT –2 S102-1 REFLECT RATE...
  • Page 55 • Waveforms – BD (MD) Board – – BD (CD) Board – – MAIN Board – – DISPLAY Board – 1 IC101 wg (MDP) (CD PLAY mode) 6 IC101 us (XTAO) 1 IC101 1 (I), 2 (J) (MD PLAY mode) 1 IC801 w;...

  • Page 56: Printed Wiring Board - Main Board (Component Side)

    MXD-D4 6-10. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 48 for Circuit Boards Location. (Page 62) • Semiconductor Location Ref. No. Location D400 D509 D516 D523 IC301 C-10 IC800 IC801 IC802 Q101 B-10 Q201 B-10...

  • Page 57: Printed Wiring Boards - Main (Conductor Side)/Loading Boards

    MXD-D4 6-11. PRINTED WIRING BOARDS – MAIN (Conductor Side)/LOADING Boards – • See page 48 for Circuit Boards Location. (Page 64) (Page 66) (Page 68) (Page 64) (Page 66) • Semiconductor Location Ref. No. Location Ref. No. Location Ref. No.

  • Page 58: Schematic Diagram - Main Board (1/4)

    MXD-D4 6-12. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • • See page 55 for Waveform. See page 68 for IC Block Diagram. (Page 53) (Page 59) (Page 53) (Page 61) (Page 60) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 59: Schematic Diagram - Main (2/4)/Loading Boards

    MXD-D4 6-13. SCHEMATIC DIAGRAM – MAIN (2/4)/LOADING Boards – • • See page 55 for Waveform. See page 68 for IC Block Diagram. (Page 51) (Page 58) (Page 60) (Page 61) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 60: Schematic Diagram - Main Board (3/4)

    MXD-D4 6-14. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 68 for IC Block Diagrams. (Page 58) (Page 68) (Page (Page Note on Schematic Diagram: The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont •...

  • Page 61: Schematic Diagram - Main Board (4/4)

    MXD-D4 6-15. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 68 for IC Block Diagrams. (Page 59) (Page 58) (Page 60) (Page 65) (Page 67) (Page 65) (Page 67) (Page Note: Be sure to execute the Voltage Adjustment on page 44, whenever the asterisked parts (IC506, R550, R551, RV500), mounted Note on Schematic Diagram: •...

  • Page 62: Printed Wiring Boards - Display/Lp Led/Pw Sw Boards

    MXD-D4 6-16. PRINTED WIRING BOARDS – DISPLAY/LP LED/PW SW Boards – • See page 48 for Circuit Boards Location. (Page 56) • Semiconductor Location Ref. No. Location D751 D752 IC751 Q751 Q752 Q753 B-10 Q754 B-10 Q791 B-10 There are a few cases that the part isn't mounted in model...

  • Page 63: Schematic Diagram - Display/Lp Led/Pw Sw Boards

    MXD-D4 6-17. SCHEMATIC DIAGRAM – DISPLAY/LP LED/PW SW Boards – • See page 55 for Waveform. (Page 61) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD, CD STOP...

  • Page 64: Printed Wiring Board - Trans Board (Except Singapore)

    MXD-D4 6-18. PRINTED WIRING BOARD – TRANS Board (Except Singapore) – • See page 48 for Circuit Boards Location. (Page 57) (Page 57) There are a few cases that the part isn't mounted in model is printed on diagrams.

  • Page 65: Schematic Diagram - Trans Board (Except Singapore)

    MXD-D4 6-19. SCHEMATIC DIAGRAM – TRANS Board (Except Singapore) – (Page 61) (Page 61) The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety. critiques pour la sécurité. Ne les remplacer que Replace only with part number specified.

  • Page 66: Printed Wiring Boards - Trans/Lf Boards (Singapore)

    MXD-D4 6-20. PRINTED WIRING BOARDS – TRANS/LF Boards (Singapore) – • See page 48 for Circuit Boards Location. (Page 57) (Page 57) There are a few cases that the part isn't mounted in model is printed on diagrams.

  • Page 67: Schematic Diagram - Trans/Lf Boards (Singapore)

    MXD-D4 6-21. SCHEMATIC DIAGRAM – TRANS/LF Boards (Singapore) – (Page 61) (Page 61) The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety. critiques pour la sécurité. Ne les remplacer que Replace only with part number specified.

  • Page 68: 6-22. Printed Wiring Board - Hp Board

    MXD-D4 6-22. PRINTED WIRING BOARD – HP Board – • • IC Block Diagrams See page 48 for Circuit Boards Location. – MAIN Board – IC300 µDA1350AH 41 40 39 38 37 36 RESET BCKO VDDD (C) VDDA (PLL) VSSD...
  • Page 69 IC500 LA5643 IC506 BA00AST-V5 REFERENCE – VOLTAGE – STBY ANA5 – SYS3.3 – – 3.3V B.BAK – DELAY P. DOWN CIRCUIT – DELAY S. RESET CIRCUIT VREF IC504 M5293L REFERENCE VOLTAGE REFERENCE – ON/OFF VOLTAGE OVERHEAT OVERCURRENT PROTECTION LIMITTER IC505 LA5601 V REF VOMUTE RESET...

  • Page 70: 6-24. Ic Pin Function Description

    6-24. IC PIN FUNCTION DESCRIPTION • BD (MD) BOARD IC101 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name Description 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...
  • Page 71 • BD (MD) BOARD IC151 CXD2662R (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER) Pin No. Pin Name Description Focus OK signal output terminal “H” is output when focus is on (“L”: NG) MNT0 (FOK) Not used (open) MNT1 (SHOCK) Track jump detection signal output to the system controller (IC801)
  • Page 72 Pin No. Pin Name Description XCAS Column address strobe signal output to the D-RAM (IC152) “L” active Address signal output to the D-RAM (IC152) XRAS Row address strobe signal output to the D-RAM (IC152) “L” active Write enable signal output to the D-RAM (IC152) “L” active Two-way data bus with the D-RAM (IC152) I (S) MVCI...
  • Page 73 Pin No. Pin Name Description FRDR Focus servo drive PWM signal (–) output to the BH6511FS (IC141) Clock signal (176.4 kHz) output terminal (X’tal system) Not used (open) SRDR Sled servo drive PWM signal (–) output to the BH6511FS (IC141) SFDR Sled servo drive PWM signal (+) output to the BH6511FS (IC141) SPRD...
  • Page 74 • MAIN BOARD IC800 M30624MGA-322FP (CD MECHANISM CONTROLLER) Pin No. Pin Name Description CD DATA Serial data output to the CD block CD CLK Serial data transfer clock signal output to the CD block Serial data latch pulse signal output to the CD block SIRCS Remote control signal input from the remote control receiver (IC781) Not used (open)
  • Page 75 Pin No. Pin Name Description SPDL MUTE Spindle motor muting control signal output to the CD block — Not used (fixed at “H” in this set) 47 to 51 — Not used (open) LED RECMODE LED on/off control signal output terminal Not used (open) LED DATA LED control serial data output terminal Not used (open) LED CLK...
  • Page 76 Pin No. Pin Name Description Detection input from the disc in detect sensor on the CD mechanism block DSENSE “H”: disc detected Not used (open) Detection input from the CD tray door open/close detect switch input terminal PRTC SW “L”: when CD lid is open, “H”: when CD lid is close Not used (open) SOFT TEST Not used (open) Key input terminal (A/D input) S741 to S746 (x (MD), X (MD), H (MD), M (MD), RECz,...
  • Page 77 • MAIN BOARD IC801 M30805SGP (SYSTEM CONTROLLER (MD MECHANISM CONTROLLER)) Pin No. Pin Name Description 1, 2 Not used (open) LVL L L-ch level output to the CD mechanism controller (IC800) LVL R R-ch level output to the CD mechanism controller (IC800) 5 to 7 Not used (open) DAC MUTE...
  • Page 78 Pin No. Pin Name Description Not used (open) XINT Interrupt status input from the CXD2662R (IC151) Not used (open) XLET (CL1P) Not used (open) Laser power select signal output to the CXD2662R (IC151) and HF module switch circuit WRPWR “L”: playback mode, “H”: recording mode Communication data reading clock signal output or transfer clock signal input with the CD CLK (IIC) mechanism controller (IC800)
  • Page 79 Pin No. Pin Name Description — Power supply terminal (+3.5V) Address signal output to the flash ROM (IC802) — Ground terminal 77 to 85 A17 to A9 Address signal output to the flash ROM (IC802) SEL3 Not used (open) SEL2 Model setting input terminal (fixed at “L”...

  • Page 80: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
  • Page 81 (2) FRONT PANEL SECTION supplied not supplied supplied not supplied supplied supplied with RV481 supplied supplied supplied with J481 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-220-710-01 PLATE, INDICATION 4-228-761-11 LID (CARTRIDGE) (GOLD) 4-996-687-41 KNOB (AMS) (GOLD) 4-230-410-11 SPRING (LID), TENSION 4-996-687-51 KNOB (AMS) (BLACK) 4-950-189-01 KNOB (A) (VOL) (BLACK)
  • Page 82 (3) CHASSIS SECTION not supplied T601, T651 Singapore not supplied supplied supplied not supplied supplied supplied supplied supplied The components identified by Les composants identifiés par une mark 0 or dotted line with mark marque 0 sont critiquens pour la 0 are critical for safety.
  • Page 83 (4) MD MECHANISM DECK SECTION-1 (MDM-7X2A) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 301 4-996-267-01 BASE (BU-D) 4-227-012-01 SPRING (HOLDER), TENSION 4-908-618-21 SCREW (+BTP) (2X6) 4-227-019-02 PLATE (HOLDER), RETAINER 4-227-007-01 GEAR (SB) 4-227-013-01 SPRING (EJ), TENSION 4-227-025-01 BELT (LOADING) 4-226-995-01 SLIDER (EJ) 3-372-761-01 SCREW (M1.7), TAPPING...
  • Page 84 (5) MD MECHANISM DECK SECTION-2 (MDM-7X2A) HR901 S102 M101 M102 The components identified by mark 0 or dotted line with mark 0 are critical for safety. M103 Replace only with part number specified. Les composants identifiés par une marque 0 sont critiquens pour la sécurité.
  • Page 85 (6) CD MECHANISM DECK SECTION (CDM55B-21BD53) M201 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Les composants identifiés par une marque 0 sont critiquens pour la sécurité.

  • Page 86: Electrical Parts List

    SECTION 8 BD (MD) ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark are seldom required for routine service. parts list may be different from the parts speci- 0 are critical for safety.
  • Page 87 BD (MD) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC151 8-752-404-64 IC CXD2662R R110 1-216-845-11 METAL CHIP 100K 1/16W IC152 8-759-599-51 IC MSM51V17400D-50TS-K R111 1-216-833-11 METAL CHIP 1/16W IC181 8-759-481-17 IC MC74ACT08DTR2 R112 1-216-829-11 METAL CHIP 4.7K 1/16W IC190...
  • Page 88 BD (MD) DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S104 1-771-955-21 SWITCH, PUSH (1 KEY) R702 1-249-408-11 CARBON 1/4W (PLAY POSITION DETECT) R703 1-249-410-11 CARBON 1/4W S105 1-771-955-21 SWITCH, PUSH (1 KEY) R704 1-249-412-11 CARBON 1/4W (REC POSITION DETECT) R705...
  • Page 89 DISPLAY LOADING LP LED MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S732 1-762-875-21 SWITCH, KEYBOARD (YES) 1-674-336-21 LOADING BOARD S733 1-762-875-21 SWITCH, KEYBOARD (MENU NO) *************** S734 1-762-875-21 SWITCH, KEYBOARD (HIGH CD SYNCHRO) < CONNECTOR > S735 1-762-875-21 SWITCH, KEYBOARD (NORMAL CD SYNCHRO) S736...
  • Page 90 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C308 1-216-295-11 SHORT C504 1-115-364-11 ELECT 22000uF C309 1-126-925-11 ELECT 470uF C505 1-165-319-11 CERAMIC CHIP 0.1uF C310 1-165-319-11 CERAMIC CHIP 0.1uF C311 1-163-227-11 CERAMIC CHIP 10PF 0.5PF C506 1-165-319-11 CERAMIC CHIP 0.1uF...
  • Page 91 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C818 1-165-319-11 CERAMIC CHIP 0.1uF D524 8-719-988-61 DIODE 1SS355TE-17 C819 1-104-665-11 ELECT 100uF D526 8-719-988-61 DIODE 1SS355TE-17 C820 1-163-251-11 CERAMIC CHIP 100PF C821 1-163-251-11 CERAMIC CHIP 100PF <...
  • Page 92 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q200 8-729-046-97 TRANSISTOR 2SD1938 (F)-T (TX).SO R320 1-216-025-11 RES-CHIP 1/10W Q201 8-729-046-97 TRANSISTOR 2SD1938 (F)-T (TX).SO Q300 8-729-424-08 TRANSISTOR UN2111-TX R321 1-216-073-00 METAL CHIP 1/10W R333 1-216-025-11 RES-CHIP 1/10W Q301 8-729-421-22 TRANSISTOR...
  • Page 93 MAIN TRANS PW SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R850 1-216-073-00 METAL CHIP 1/10W 0 T652 R864 1-216-295-11 SHORT 1-433-668-11 TRANSFORMER, POWER (AEP, UK) ************************************************************** < COMPOSITION CIRCUIT BLOCK > PW SW BOARD RB800 1-236-908-11 NETWORK RESISTOR (CHIP) 10K *************...
  • Page 94 MXD-D4 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ************** HARDWARE LIST ************** 7-685-204-19 SCREW +KTP 2X6 TYPE2 NON-SLIT 7-685-534-19 SCREW +BTP 2.6X8 TYPE2 N-S 7-685-871-01 SCREW +BVTT 3X6 (S) 7-685-850-04 SCREW +BVTT 2X3 (S) ************************************************************ ACCESSORIES &...

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