Sony MXD-D5C Service Manual
  1. Manuals
  2. Brands
  3. Sony Manuals
  4. Stereo System
  5. MXD-D5C
  6. Service manual
Sony MXD-D5C Service Manual

Sony MXD-D5C Service Manual

Compact disc minidisc deck
Hide thumbs Also See for MXD-D5C:
Table of Contents

Quick Links

SERVICE MANUAL
U.S. and foreign patents licensed form Dolby
Laboratories Licensing Corporation.
CD player section
System
Compact Disc digital audio system
Semiconductor laser ( λ = 780 nm)
Laser
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 96 dB
Wow and flutter
Below measurable limit
MD deck section
System
MiniDisc digital audio system
Disc
MiniDisc
Semiconductor laser ( λ = 780 nm)
Laser
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-D5C
Photo: AEP, UK models
Model Name Using Similar Mechanism
CD Mechanism Type
CD
Base Unit Name
Section
Optical Pick-up Name
Model Name Using Similar Mechanism
MD
MD Mechanism Type
Section
Optical Pick-up Name
SPECIFICATIONS
Frequency response
Signal-to-noise ratio
Wow and flutter
Inputs
ANALOG IN
DIGITAL
OPTICAL IN
Outputs
PHONES
ANALOG
OUT
COMPACT DISC MINIDISC DECK
US Model
Canadian Model
AEP Model
UK Model
NEW
CDM53G-21BD53
BU-21BD53
OP Assy (A-MAX.2)
NEW
MDM-7X2A
KMS-262A/J1N
5 to 20,000 Hz ±0.5 dB
Over 96 dB during playback
Below measurable limit
Jack type
Input
Rated
impedance
input
Phono
47 kilohms
500 mVrms 125 mVrms
jacks
Square
Optical wave
optical
length:
—
connector
660 nm
jack
Jack type
Rated output
Load impedance
Stereo phone
10 mW
32 ohms
jack
Phono jacks
2 Vrms
Over 10 kilohms
(at 50 kilohms)
– Continued on next page –
Minimum
input
—
Table of Contents
loading

Related Manuals for Sony MXD-D5C

Summary of Contents for Sony MXD-D5C

  • Page 1 MXD-D5C SERVICE MANUAL US Model Canadian Model AEP Model UK Model Photo: AEP, UK models Model Name Using Similar Mechanism U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation. CD Mechanism Type CDM53G-21BD53 Base Unit Name BU-21BD53 Section Optical Pick-up Name OP Assy (A-MAX.2)

  • 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 “6 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 “<1> Version”, 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 ! ” # $ % & ´ (21h to 27h)1kHz 0dB L&R T All the same + , –...

  • Page 16: General

    SECTION 2 GENERAL LOCATION OF CONTROLS • Front View 1 Remote sensor qa CD operation button AMS control 2 I/1 (power) switch H (play) button YES button X (pause) button H (play) button STANDBY indicator 3 DISC 1–5 button x (stop) button X (pause) button DISK 1–5 A (CD tray open/close) button m/M (forward/backward) button...

  • Page 17: Disassembly

    SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. CASE (Page 18) FRONT PANEL ASS’Y (Page 18) HP BOARD, SW BOARD, CD MECHANISM DECK SECTION (CDM53G-21BD53), LED BOARD, DISPLAY BOARD MD MECHANISM DECK SECTION (MDM-7X2A) (Page 19) (Page 19) AUDIO BOARD...
  • Page 18 Note: Follow the disassembly procedure in the numerical order given. CASE 2 case 1 two screws 1 two screws 1 two screws FRONT PANEL ASS’Y 1 connector 2 wire (flat type) (9 core) (CN300) (CN803) 5 claw 4 four screws (BVTT3 ×...
  • Page 19 HP BOARD, SW BOARD, LED BOARD, DISPLAY BOARD 2 screw (BVTP2.6 × 8) 5 nine screws (BVTP2.6 × 8) 4 HP board 6 LED board 3 two nuts 2 two screws (BVTP2.6 × 8) 7 four screws (BVTP2.6 × 8) 9 ten screws (BVTP2.6 ×...
  • Page 20 AUDIO BOARD 1 wire (flat type) (19 core) (CN305) 2 three screws (BV3 × 8) 3 AUDIO board MAIN BOARD, POWER TRANSFORMER (TR701) 2 screw 1 four screws (BVTT3 × 6) (PTTWH3 × 6) 6 two PC board holders 2 screw (BVTT3 ×...
  • Page 21 BD (MD) BOARD 5 Remove the solder (four portions). 1 wire (flat type)(23 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 22 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 WRITE HEAD (HR901) 9 optical pick-up (KMS-262A/J1N) over write head (HR901) 7 main shaft 8 screw (KTP2 ×...
  • Page 23 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 24 FITTING BASE (GUIDE) ASS’Y, BRACKET (CHASSIS) AND MAGNET ASS’Y 8 four screws (BVTP M2.6) 6 bracket 2 four screws (chassis) (BVTP M2.6) 4 two screws 7 connector (BVTP M2.6) (CN710) 9 magnet ass’y 5 two screws (BVTP M2.6) 3 fitting base (guide) ass’y 1 two connectors (CN709, 715)
  • Page 25 CHASSIS (MOLD B) SECTION, STOCKER SECTION AND SLIDER (SELECTION) Note: In mounting the parts, refer to page 26 - 28. 6 two screws (PTPWH M2.6) 5 stocker section 7 slider (selection) 8 washer 9 compression 1 three screws spring pulley (LD) (BVTP M2.6) 4 two step screws...

  • Page 26: Assembly

    SECTION 4 ASSEMBLY GEARS INSTALLATION (Page 26) SLIDER (SELECTION) INSTALLATION (Page 27) STOCKER SECTION INSTALLATION (Page 27) CHASSIS (MOLD B) SECTION INSTALLATION (Page 28) Note: Follow the assembly procedure in the numerical order given. GEARS INSTALLATION 3 gear (gear B) portion A Adjust the gear (gear B) with the portion A as shown.
  • Page 27 SLIDER (SELECTION) INSTALLATION 6 two screws (PTPWH M2.6) 2 gear (chuking) rotary encoder 5 washer 4 compression spring 7 Insert the slider (selection) into the portion A. Align with the slot of rotary encoder. portion A 3 convex portion of slider (selection) gear (chuking) 1 rotary encoder...
  • Page 28 CHASSIS (MOLD B) SECTION INSTALLATION 3 three screws (BVTP M2.6) 2 Insert the gear (eject) 1 Insert the portion A of under the gear (LD chassis (mold B) section deceleration). portion A into the portion B of slider (selection). gear (LD deceleration) portion B of slider (selection)

  • Page 29: Test Mode

    SECTION 5 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 30 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 modes shown below.
  • Page 31 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 32 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 33 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 34 CD SECTION Set the CD test mode when performing confirmations. After completing confirmation, release the CD test mode. (Turn the (MD) knob, “<8> Initial” displayed and press the (MD) knob so that the power is turned off.) 1. COMMAND TRANSFER MENU Procedure: (1) Enter the test mode, then rotate (MD) knob to display “0>...

  • Page 35: Electrical Adjustments

    SECTION 6 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 38) 6-3.
  • Page 36 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 33) 7. INITIAL SETTING OF ADJUSTMENT VALUE Replace OP or IC195 (See page 41) 9.
  • Page 37 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 38 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 (MD) The following describes how to create a continuous recording button or M (MD) button to move the optical pick-up.) disc.
  • Page 39 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 40 [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 41 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 42 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 6.9 to 7.1 mW, press the to “Iop 7.0 mW”. [YES] button to save it. 5.
  • Page 43 [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 44 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 45 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 46: 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 47 Adjustment for Replace the Base Unit (BU-21BD53) Adjustment and Checking Location: When replacing the base unit (BU-21BD53), perform the adjust- – BD (CD) BOARD (Conductor Side) – ment with the following procedure. Connection: digital voltmeter MAIN board TP (+5 V) TP (GND) –...

  • Page 48: Diagrams

    MXD-D5C SECTION 7 DIAGRAMS DIGITAL SIGNAL PROCESSOR, 7-1. 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 (Page 49) SAMPLING HR901...

  • Page 49: Block Diagram - Main Section

    MXD-D5C 7-2. BLOCK DIAGRAM – MAIN Section – J300 ADDT DATAO VINL LINE LRCK DIGITAL DECIMATION (Page 48) CANCELLATION CONVERTER INTERFACE FILTER FILTER BLOCK VINR IC305 RESET PWON ANALOG SWITCH CLOCK Q301 SCLK CONTROL A/D CONVERTER IC301 D/A CONVERTER CLKOUT...

  • Page 50: Block Diagram - Display/Power Supply Section

    MXD-D5C 7-3. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section – REMOTE CONTROL RECEIVER SIRCS S901 – 910 IC901 LED DATA DATA LED CLK XLED STB D902 – 908 KEY0 DISC1 DISC5 CD SYNCHRO CD SYNCHRO DRIVER S911 – 913, NORMAL HIGH IC902 S991 –...

  • Page 51: Note For Printed Wiring Boards And Schematic Diagrams

    7-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Cirecuit 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 52: Printed Wiring Board - Bd (Cd) Board

    MXD-D5C 7-5. PRINTED WIRING BOARD – BD (CD) Board – • See page 51 for Circuit Boards Location. (Page 58) 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 53: Schematic Diagram - Bd (Cd) Board

    MXD-D5C 7-6. SCHEMATIC DIAGRAM – BD (CD) Board – • See page 57 for Waveforms. (Page Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD STOP ) : CD PLAY The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont...

  • Page 54: Schematic Diagram - Bd (Md) Board (1/2)

    MXD-D5C 7-7. SCHEMATIC DIAGRAM – BD (MD) Board (1/2) – • See page 57 for Waveforms. • See page 74 for IC Block Diagrams. (Page (Page (Page Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 55: Schematic Diagram - Bd (Md) Board (2/2)

    MXD-D5C 7-8. SCHEMATIC DIAGRAM – BD (MD) Board (2/2) – • See page 57 for Waveforms. • See page 74 for IC Block Diagram. (Page 54) (Page (Page 54) (Page (Page 54) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 56: Printed Wiring Board - Bd (Md) Board

    MXD-D5C 7-9. PRINTED WIRING BOARD – BD (MD) Board – • See page 51 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 57 • Waveforms – BD (MD) Board – – BD (CD) Board – 1 IC101 wg (MDP) (CD PLAY mode) 6 IC101 us (XTAO) 1 IC101 1 (I), 2 (J) (MD PLAY mode) 2.6 Vp-p 3.1 Vp-p 0.5 Vp-p 7.9 µ s 29 ns 2 IC101 el (FE) (CD PLAY mode) 2 IC101 4 (A) (MD PLAY mode)

  • Page 58: Printed Wiring Board - Main Board (Component Side)

    MXD-D5C 7-10. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 51 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D300 D302 D303 IC800 IC801 IC805 Q302 Q303 (Page 70) (Page 56) (Page 56) (Page 52)

  • Page 59: Printed Wiring Board - Main Board (Conductor Side)

    MXD-D5C 7-11. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • See page 51 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D701 D707 D708 D710 D711 D712 D713 D714 D715 D716 D717 D718 D719 D720 D721...

  • Page 60: Schematic Diagram - Main Board (1/4)

    MXD-D5C 7-12. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 67 for Waveforms. (Page 66) (Page 73) (Page 71) (Page 61) (Page 63) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground (Page 62) under no-signal conditions.

  • Page 61: Schematic Diagram - Main Board (2/4)

    MXD-D5C 7-13. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • See page 67 for Waveform. (Page 66) (Page 53) (Page 69) (Page 60) (Page 69) (Page 62) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground (Page 63) under no-signal conditions.

  • Page 62: Schematic Diagram - Main Board (3/4)

    MXD-D5C 7-14. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 67 for Waveform. • See page 74 for IC Block Diagram. (Page 60) (Page (Page (Page (Page Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions.

  • Page 63: Schematic Diagram - Main Board (4/4)

    MXD-D5C 7-15. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 74 for IC Block Diagrams. (Page 61) (Page 60) (Page Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD, CD STOP The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont...

  • Page 64: Printed Wiring Board - Audio Board (Component Side)

    MXD-D5C 7-16. PRINTED WIRING BOARD – AUDIO Board (Component Side) – • See page 51 for Circuit Boards Location. There are a few cases that the part isn't mounted in model is printed on diagrams.

  • Page 65: Printed Wiring Board - Audio Board (Conductor Side)

    MXD-D5C 7-17. PRINTED WIRING BOARD – AUDIO Board (Conductor Side) – • See page 51 for Circuit Boards Location. • Semiconductor ANALOG Location DIGITAL OPTICAL Ref. No. Location KEYBOARD D100 D200 IC100 IC200 IC300 IC301 IC302 IC303 IC304 IC305 Q100...

  • Page 66: Schematic Diagram - Audio Board

    MXD-D5C 7-18. SCHEMATIC DIAGRAM – AUDIO Board – • See page 74 for IC Block Diagrams. (Page (Page 71) (Page 61) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD, CD STOP The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont...
  • Page 67 MXD-D5C • Waveforms – MAIN Board – 1 IC805 qd (XOUT) 4.6 Vp-p 100 ns 2 IC805 wg (FL_BK) 5 Vp-p 149 µs 3 IC805 ej (FL_CLK) 4.9 Vp-p 397 µs 4 IC800 qd (XOUT) 3.1 Vp-p 62.5 ns 5 IC801 w; (XOUT) 2.8 Vp-p...

  • Page 68: Printed Wiring Boards - Cdm Section

    MXD-D5C 7-19. PRINTED WIRING BOARDS – CDM Section – • See page 51 for Circuit Boards Location. (Page 59) S701 ON : WHEN TRAY IS GOING TO OPEN/CLOSE (Page 59) S701 (MID OUT) 1-671-503- S708 (OUT) S702 (LID) S708 ON : WHEN TRAY...

  • Page 69: Schematic Diagram - Cdm Section

    MXD-D5C 7-20. SCHEMATIC DIAGRAM – CDM Section – • See page 74 for IC Block Diagrams. (Page 61) (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 70: Printed Wiring Boards - Panel Section

    MXD-D5C 7-21. PRINTED WIRING BOARDS – PANEL Section – • See page 51 for Circuit Boards Location. (Page SW BOARD (Page 65) There are a few cases that the part isn't mounted in model is printed on diagrams.

  • Page 71: 7-22. Schematic Diagram - Panel Section

    MXD-D5C 7-22. SCHEMATIC DIAGRAM – PANEL Section – (Page 66) (Page 60) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD, CD STOP...

  • Page 72: Printed Wiring Board - Led Board

    MXD-D5C 7-23. PRINTED WIRING BOARD – LED Board – • See page 51 for Circuit Boards Location. (Page 58) • Semiconductor Location Ref. No. Location D901 D902 D903 D904 D905 D906 D907 D908 IC901 IC902 There are a few cases that the part isn't mounted in model is printed on diagrams.

  • Page 73: 7-24. Schematic Diagram - Led Board

    MXD-D5C 7-24. SCHEMATIC DIAGRAM – LED Board – (Page 60) Note on Schematic Diagram: • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : MD, CD STOP...
  • Page 74 • IC Block Diagrams IC141 BH6511FS – BD (MD) Board – IC101 CXA2523AR 43 42 INTERFACE INTERFACE USROP – RF AGC CHARGE – PREDRIVE PREDRIVE USRC PUMP. RFA1 BPF3T RFA2 RFA3 PEAK3T PREDRIVE PREDRIVE – HLPT –1 – – –2 –...

  • Page 75: Main Board

    – MAIN Board – IC700 BA00AST-V5 IC400 LB1641 REFERENCE – VOLTAGE T.S.D O.C.P MOTOR MOTOR DRIVE DRIVE FWD/REV/STOP CONTROL LOGIC IC701 LA5601 V REF VOMUTE RESET ON/OFF IC702 LA5643 – STBY ANA5 – SYS3.3 – – 3.3V B.BAK – DELAY P.

  • Page 76: Audio Board

    – AUDIO Board – IC300 µDA1350AH 41 40 39 38 37 36 RESET BCKO VDDD (C) VDDA (PLL) VSSD 31 VSSA (PLL) VSSD (C) PREEM1 DATA L3DATA IEC 958 OUTPUT L3CLOCK DECODER INTERFACE CLOCK INTERFACE CLKOUT DATAI TIMING DATA CIRCUIT 28 NC INPUT BCKI...

  • Page 77: 7-25. Ic Pin Function Description

    7-25. 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 78 • BD (MD) BOARD IC151 CDX2662R (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 79 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 80 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 81 • MAIN BOARD IC800 M30624MGA-321FP (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 (IC901) Not used (open)
  • Page 82 Pin No. Pin Name Description SPDL MUTE Spindle motor muting control signal output to the CD block 46 to 51 Not used (open) LED RECMODE LED (D951 MDLP) on/off control signal output LED DATA LED control serial data output to the LED driver (IC902) LED CLK LED control serial data transfer clock signal output to the LED driver (IC902) XLED STB...
  • Page 83 Pin No. Pin Name Description Detection input from the disc in detect sensor (D704 and Q703) on the CD mechanism block DSENS “H”: disc detected Detection input from the CD tray door open/close detect switch (S702) PRTC SW “L”: when CD lid is open, “H”: when CD lid is close SOFT TEST Not used (open) Key input terminal (A/D input) S991 to S997 (INPUT, TIME/CHAR MD, x (MD), X (MD),...
  • Page 84 • MAIN BOARD IC801 M30805SGP (SYSTEM CONTROLLER (MD MECHANISM CONTROLLER) Pin No. Pin Name Description 1, 2 Not used (open) LEVEL L L-ch level output to the CD mechanism controller (IC800) LEVEL R R-ch level output to the CD mechanism controller (IC800) 5 to 7 Not used (open) DAC MUTE...
  • Page 85 Pin No. Pin Name Description Not used (open) XINT Interrupt status input from the CXD2662R (IC151) Not used (open) XLET 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 I2CCLK mechanism controller (IC800)
  • Page 86 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 “H”...
  • Page 87 • MAIN BOARD IC805 M30622MA-1BOFP (DISPLAY CONTROLLER) Pin No. Pin Name Description 1 to 7 Not used (open) BYTE External data bus line byte selection signal input “L”: 16 bit, “H”: 8 bit (fixed at “L”) CNVSS — Ground terminal 10.
  • Page 88 Pin No. Pin Name Description 81 to 88 D7 to D0 Not used (open) LED POWER Not used (open) LED FILTER Not used (open) LED MDLONG Not used (open) Not used (open) MODEL SW Model setting input terminal (fixed at “H” in this set) DEST SW Destination setting input terminal (fixed at “L”...

  • Page 89: Exploded Views

    SECTION 8 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 90 (2) FRONT PANEL SECTION (including not supplied not supplied supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4952-944-1 PANEL ASSY, FRONT (US, Canadian) 4-228-741-01 BUTTON (SYNC) X-4952-968-1 PANEL ASSY, FRONT (AEP, UK) 4-230-410-01 SPRING (LID), TENSION 4-951-620-01 SCREW (2.6X8), +BVTP 4-228-761-01 LID (CARTRIDGE) 4-996-683-21 BUTTON (POWER)
  • Page 91 (3) CHASSIS SECTION not supplied CDM53G-21BD53 supplied The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. not supplied Les composants identifiés par une MDM-7X2A marque 0 sont critiquens pour la sécurité.
  • Page 92 (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 93 (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. Replace only with part number specified. M103 Les composants identifiés par une marque 0 sont critiquens pour la sécurité.
  • Page 94 (6) CD MECHANISM DECK SECTION-1 (CDM53G-21BD53) not supplied not supplied M702 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-951-620-41 SCREW (2.6), +BVTP * 516 4-214-129-01 COVER * 502 1-671-508-12 LOAD MOTOR BOARD 4-211-235-01 BELT (COMMUNICATION) 4-211-215-01 GEAR (EJECT) 4-211-236-01 BELT (LOADING) * 504...
  • Page 95 (7) CD MECHANISM DECK SECTION-2 (CDM53G-21BD53) not supplied not supplied S707 not supplied M701 not supplied 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 supplied sécurité.

  • Page 96: Electrical Parts List

    SECTION 9 AUDIO 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 97 AUDIO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C370 1-165-319-11 CERAMIC CHIP 0.1uF < RESISTOR > C371 1-165-319-11 CERAMIC CHIP 0.1uF C373 1-165-319-11 CERAMIC CHIP 0.1uF R100 1-216-073-00 METAL CHIP 1/10W R101 1-216-025-11 RES-CHIP 1/10W C374 1-165-319-11 CERAMIC CHIP 0.1uF...
  • Page 98 AUDIO BD (MD) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R323 1-216-049-11 RES-CHIP 1/10W C159 1-162-927-11 CERAMIC CHIP 100PF R324 1-216-295-11 SHORT C160 1-162-927-11 CERAMIC CHIP 100PF R325 1-216-295-11 SHORT C161 1-162-970-11 CERAMIC CHIP 0.01uF R326 1-216-295-11 SHORT C162...
  • Page 99 BD (MD) CLAMP MOTOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L103 1-500-245-11 FERRITE BEAD L105 1-414-235-22 FERRITE BEAD R126 1-216-819-11 METAL CHIP 1/16W L106 1-500-245-11 FERRITE BEAD R127 1-216-845-11 METAL CHIP 100K 1/16W R128 1-219-724-11 METAL CHIP 1/4W L121...
  • Page 100 CLAMP MOTOR CONNECTOR DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < DIODE > < DIODE > D951 8-719-032-98 LED SEL5820A-TP15 (MDLP) D701 8-719-983-66 DIODE MTZJ-T-72-3.6B < FLUORESCENT INDICATOR TUBE > < IC > FL900 1-517-983-11 INDICATOR TUBE, FLUORESCENT IC701 8-759-633-65 IC M54641L...
  • Page 101 DISPLAY IN SW INIT/COUNT SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4725-195-A LED BOARD, COMPLETE (US, Canadian) S993 1-762-875-21 SWITCH, KEYBOARD (x (MD))) A-4725-204-A LED BOARD, COMPLETE (AEP, UK) S994 1-762-875-21 SWITCH, KEYBOARD (X (MD)) ******************** S995 1-762-875-21 SWITCH, KEYBOARD (H (MD))
  • Page 102 LOAD MOTOR MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R913 1-216-033-00 METAL CHIP 1/10W R914 1-216-033-00 METAL CHIP 1/10W A-4725-191-A MAIN BOARD, COMPLETE (US, Canadian) A-4725-200-A MAIN BOARD, COMPLETE (AEP, UK) R915 1-216-033-00 METAL CHIP 1/10W ********************* R916...
  • Page 103 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C730 1-165-319-11 CERAMIC CHIP 0.1uF C827 1-126-964-11 ELECT 10uF C828 1-165-319-11 CERAMIC CHIP 0.1uF C731 1-165-319-11 CERAMIC CHIP 0.1uF C829 1-165-319-11 CERAMIC CHIP 0.1uF C732 1-126-935-11 ELECT 470uF C830 1-165-319-11 CERAMIC CHIP...
  • Page 104 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D719 8-719-200-02 DIODE 11E2 D720 8-719-200-02 DIODE 11E2 L333 1-216-296-00 SHORT D721 8-719-200-02 DIODE 11E2 L400 1-216-296-00 SHORT D722 8-719-422-31 DIODE MA8047-M-TX L401 1-216-296-00 SHORT D723 8-719-986-55 DIODE HZS24-2LTA L402 1-216-296-00 SHORT L403...
  • Page 105 MAIN OUT SW SENSOR 2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R713 1-216-097-11 RES-CHIP 100K 1/10W R862 1-216-049-11 RES-CHIP 1/10W R714 1-216-057-00 METAL CHIP 2.2K 1/10W R863 1-216-295-11 SHORT R715 1-216-040-00 RES-CHIP 1/10W R716 1-216-044-00 METAL CHIP 1/10W R885...
  • Page 106 MXD-D5C SENSOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-671-504-12 SENSOR BOARD M102 A-4672-900-A MOTOR ASSY, SLED (for MD) M103 A-4672-975-A MOTOR ASSY, LOADING (for MD) ************* M701 X-4950-341-1 MOTOR (CLAMP) ASSY (for CD) 4-964-461-02 HOLDER (SENSOR)

Table of Contents