Sony MDS-LSA1 Service Manual
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Sony MDS-LSA1 Service Manual

Sony MDS-LSA1 Service Manual

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SERVICE MANUAL
US and foreign patents licensed from Dolby Laboratories
Licensing Corporation.
System
Disc
Laser
Laser output
Laser diode
Revolutions (CLV)
Error correction
Sampling frequency
Coding
Modulation system
Number of channels
Frequency response
Signal-to-noise ratio
Wow and flutter
SPECIFICATIONS
MiniDisc digital audio system
MiniDisc
Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Less than 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 apertur e.
Material: GaAlAs
400 rpm to 900 rpm
ACIRC (Advanced Cross Interleave
Reed Solomon Code)
44.1 kHz
ATRAC (Adaptive TRansform
Acoustic Coding)/ATRAC3
EFM (Eight-to-Fourteen Modulation)
2 stereo channels
5 to 20,000 Hz ±0.3 dB
Over 100 dB during playback
Below measurable limit
MDS-LSA1
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Type
Inputs/outputs
i.LINK S200
Jack type: 4-pins to 4-pins
General
Power requirements
230 V AC, 50/60 Hz
Power consumption
18 W
Dimensions (approx.)
430 x 70 x 315 mm (w/h/d) incl.
Mass (approx.)
4.4 kg
Supplied accessories
• i.LINK connecting cable (1)
• Remote commander (remote) (1)
Design and specifications are subject to change without notice.
AEP Model
UK Model
NEW
MDM-7X2B
KMS-262A/J1N
projecting parts and controls
MINIDISC DECK
1
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Summary of Contents for Sony MDS-LSA1

  • Page 1 MDS-LSA1 SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism US and foreign patents licensed from Dolby Laboratories Licensing Corporation. MD Mechanism Type MDM-7X2B Optical Pick-up Type KMS-262A/J1N SPECIFICATIONS Inputs/outputs System MiniDisc digital audio system i.LINK S200 Disc...
  • Page 2 The deck’s self-diagnosis function automatically checks the condition of the MD deck when an error occurs, then issues a code and an error message on the display . If the code and message alternate, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony dealer . Code/Message...
  • Page 3 NOTE • The MDS-LSA1 is designed so that a number of functions which may be performed in test mode may be performed by clicking a single button.
  • Page 4 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Selecting the Test Mode Display History op rec tm Displays the total recording time. When the total recording time is more than 1 minute, displays the hour and minute When less than 1 minute, displays “Under 1 min” The display time is the time the laser is set to high power, which is about 1/4 of the actual recording time.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS Table of Error Codes Error Code Description 1. SERVICING NOTES ..........Could not load 2. GENERAL ................ 12 Loading switches combined incorrectly Timed out without reading the top of PTOC 3. DISASSEMBLY Could read top of PTOC, but detected error 3-1.
  • Page 6 COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 7 JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-196-A) is useful for checking the waveform of the BD 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) : TRK error signal (Traverse adjustment) : Reference level for checking the signal...
  • Page 8 IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD 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 label of the optical pick-up.
  • Page 9 CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS 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”. • 5-6-2. Laser power check (see page 33) •...
  • Page 10 RETRY CAUSE DISPLAY MODE • 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 11 Reading the Track Mode Display Higher Bits Lower Bits Details Hexa- Hexadecimal decimal b7 b6 b5 b4 b3 b2 b1 b0 When 0 When 1 Binary Emphasis ON Emphasis OFF Monaural Stereo This is 2-bit display. Normally 01. 01:Normal audio. Others:Invalid Audio (Normal) Invalid Digital copy...

  • Page 12: General

    SECTION 2 This section is extracted from instruction manual. GENERAL...

  • Page 17: Disassembly

    SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. Case (Top) MD Mechanism Deck Holder Assy Over Write Head Optical pick-up (Page 18) (Page 20) (Page 20) Section (MD) Base (Front) Assy, Panel (Page 21) (Page 18) BD Board (Page 21)

  • Page 18: Md Mechanism Deck

    3-2. MD MECHANISM DECK 3 four screws 5 MD mechanism deck (BVTTWH M3), STEP 2 flat type wire (23 core) (CN301) 1 flat type wire (27 core) (CN302) 3-3. BASE (FRONT) ASSY, PANEL 8 base (front) assy, panel 6 flat type wire (17 core) 7 two screws (BVTT 3x6) (CN306) 5 case (bottom)

  • Page 19: Clip Board And Main Board

    3-4. CLIP BOARD AND MAIN BOARD 4 connector (CN902) 2 CLIP board 1 connector (CN652) 3 connector (CN903) 6 two screws (BVTT 3x6) 6 two screws (BVTT 3x6) 8 MAIN board 5 two screws (BVTT 2.6x6) 3-5. TRANS BOARD 4 four screws 1 connector (BVTT 3x6) (CN901)

  • Page 20: Holder Assy

    3-6. HOLDER ASSY 5 holder assy 1 spring (holder), tension 3-7. OVER WRITE HEAD 2 screw (P 1.7x6) 3 over write head (HR901) 1 connector (CN104)

  • Page 21: Optical Pick-Up (Md) (Kms-262A/J1N)

    3-8. OPTICAL PICK-UP (MD) (KMS-262A/J1N) 6 optical pick-up 5 shaft, main 2 base assy, SL 1 screw (P 1.7x6) 3 two screws (KTP 2x6) 3-9. BD BOARD 2 Remove the solder (Two portions) 2 Remove the solder (Two portions) 5 connector M102 (CN101) M101...

  • Page 22: Test Mode

    SECTION 4 TEST MODE 4-1. 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. Even if the A button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating.
  • Page 23 4-5. SELECTING THE TEST MODE There are 26 types of test modes as shown below. The groups can be switched by press the . or > button. After selecting the group to be used, press the 7 button. After setting a certain group, press the . or > button switches between these modes. Refer to “Group”...
  • Page 24 4-5-1. 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 Pressthe . or > button and display “CPLAY2MODE”. 3 Press the 7 button to change the display to “CPLAY2MID”. 4 When access completes, the display changes to “C = AD = ”.
  • Page 25 4.6 KEY OPERATIONS IN TEST MODE POWER “X2” Reset system and exit from test mode Switch CLV mode (CLVS y CLVA) REC “X2” DISPLAY Switch display mode REC MODE “X2” Switch between bits and groups in servo data EJECT Eject disc 7 PLAY “X2”...
  • Page 26 4-8. MEANINGS OF OTHER DISPLAYS Contents Display When Lit When Off 7 PLAY (LED: GREEN) Servo ON Servo OFF 7 PAUSE (LED: UMBER) Tracking servo OFF Tracking servo ON Recording mode ON Recording mode OFF TOC EDIT CLV low speed mode CLV normal mode L.SYNC ABCD adjustment completed...
  • Page 27 4-12. i.LINK TEST MODE Switching into iLINK test mode 1. Press the INPUT button and x button and keep the buttons pressed down while the power is on. 2. Version information will then be displayed on the display. 3. Press the . or > button to select the mode. 4.
  • Page 28 DISPLAY 0 DISPLAY 1 DISPLAY 2 Description Note 006C zzzzzzzz LINK IC Register [6C] 0070 zzzzzzzz LINK IC Register [70] 0074 zzzzzzzz LINK IC Register [74] 0078 zzzzzzzz LINK IC Register [78] 007C zzzzzzzz LINK IC Register [7C] 0080 zzzzzzzz LINK IC Register [80] 0084 zzzzzzzz LINK IC Register [84]...
  • Page 29 25 Invalid frequency DV signals). 26 Not linear PCM Sony DVs are designed to allow the use of 63 channels. MDs also have the same design, and it is impossible to use the same channel after it has already been used 24 Unlocked (i.e., the same channel cannot be used again without the ability...

  • Page 30: Electrical Adjustments

    SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. 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 5-6-2. Laser Power Check (See page 33) 5-6-3. Iop Compare (See page 33) 5-6-4.
  • Page 31 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 4-11. WHEN MEMORY NG IS DISPLAYED (See page 26) 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Replace OP or IC195 (See page 36) 5-9.

  • Page 32: Servicing Notes

    5-2. 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. 5-3. 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 33 5-5. 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 . or The following describes how to create a continuous recording >...
  • Page 34 5-6-4. Auto Check 6. Observe the waveform of the oscilloscope, and check that the This test mode performs CREC and CPLAY automatically for specified value is satisfied. Do not press the . or > but- mainly checking the characteristics of the optical pick-up. To ton.
  • Page 35 16. Observe the waveform of the oscilloscope, and check that the 5-6-8. C PLAY Check specified value is satisfied. Do not press the 7 button. MO Error Rate Check (Traverse Waveform) Checking Procedure : 1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5.
  • Page 36 5-7. INITIAL SETTING OF ADJUSTMENT VALUE 5-9. TEMPERATURE COMPENSATION OFFSET ADJUTMENT Note: Save the temperature data at that time in the non-volatile memory Mode which sets the adjustment results recorded in the non-vola- as 25 ˚C reference data. tile memory to the initial setting value. However the results of the Note : temperature compensation offset adjustment will not change to the 1.
  • Page 37 6. Press the . or > button so that the reading of the laser 5-12. TRAVERSE ADJUSTMENT power meter becomes 6.9 to 7.1 mW, press the 7 button and Connection : save it. Oscilloscope Note : Do not perform the emission with 7.0 mW more than 15 seconds continuously.
  • Page 38 11. Press the . or > button until the waveform of the oscil- 5-13. FOCUS BIAS ADJUSTMENT loscope moves closer to the specified value. Adjusting Procedure : In this adjustment, waveform varies at intervals of approx. 2%. 1. Load a test disk (MDW-74/GA-1). Adjust the waveform so that the specified value is satisfied as 2.
  • Page 39 5-14. ERROR RATE CHECK 5-16. AUTO GAIN CONTROL OUTPUT LEVEL 5-14-1. CD Error Rate Check ADJUSTMENT Checking Procedure : Be sure to perform this adjustment when the optical pick-up is re- 1. Load a check disc (MD) TDYS-1. placed. 2. Press the . or > button and display “CPLAY2MODE”. If the adjustment results becomes “Adjust NG!”, the optical pick- 3.
  • Page 40 5-17. ADJUSTING POINTS AND CONNECTING POINTS [BD BOARD] (SIDE A) CN101 D101 [BD BOARD] (SIDE B) IC101 CN105 IC102 NOTE IC151 IC190 IC195 1 27 CN103 CN102 NOTE:It is useful to use the jig. for checking the waveform. (Refer to Servicing Note on page 7.)

  • Page 41: Diagrams

    MDS-LSA1 SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING • Indication of transistor BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) These are omitted. For schematic diagrams.

  • Page 42: Block Diagrams - Bd Section

    MDS-LSA1 6-2. BLOCK DIAGRAMS – BD SECTION – DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER IC151 (1/2) IC151 (1/2) OVER WRITE EFMO ADDT HEAD DRIVE IC181, Q181, 182 DATA1 SAMPLING DATAI HR901 FILI RATE SCTX XBCKI...

  • Page 43: Main Section

    MDS-LSA1 – MAIN SECTION – X702 24.576MHz SELECTOR IC701 IC656 XLATO LRCK1 AUDIO LINK ADTO ATRAC TB2N IC601 D0-3 DATA0-3 ACKO CN309 (Page 42) TB2P DADT1 i.LINK TR/RE TA2N LINK LRCKO TA2P DATAO LINK CONTROL XBCK1 i.LINK BCKO UNIT CTL1...
  • Page 44 MDS-LSA1 • WAVEFORMS – BD Board – – MAIN Board – – PANEL Board – IC901 tl (OSC1) IC101 ek (RF) IC701 es (XO) 3.4Vp-p 2.5Vp-p 1.3Vp-p 24.576 MHz 2.22 MHz IC101 ef (FE) IC501 w; (XOUT) (Play mode) 3.0Vp-p 0.2Vp-p...

  • Page 45: Printed Wiring Board - Bd Section

    MDS-LSA1 6-3. PRINTED WIRING BOARD – BD SECTION – • See page 41 for Circuit Board Location. • Semiconductor Location Ref. No. Location D181 D183 IC101 • Semiconductor IC102 Location IC141 IC151 Ref. No. Location IC152 D101 IC181 IC190 Q101...

  • Page 46: Schematic Diagram - Bd Section (1/2)

    MDS-LSA1 6-4. SCHEMATIC DIAGRAM – BD SECTION (1/2) – • See page 44 for Waveforms. • See page 56 for IC Block Diagrams. • See page 59 for IC Pin Functions. • See page 45 for Printed Wiring Board. PIN FUNCTION...

  • Page 47: Schematic Diagram - Bd Section (2/2)

    MDS-LSA1 6-5. SCHEMATIC DIAGRAM – BD SECTION (2/2) – • See page 44 for Waveforms. • See page 56 for IC Block Diagrams. • See page 60 for IC Pin Functions. • See page 45 for Printed Wiring Board. This is a written EEPROM. Not supplied in independently but is supplied as the MAIN BOARD, COMPLETE.

  • Page 48: Printed Wiring Board - Main Section (Side A)

    MDS-LSA1 6-6. PRINTED WIRING BOARD – MAIN SECTION (SIDE A) – • See page 41 for Circuit Board Location. • Semiconductor Location Ref. No. Location Ref. No. Location D101 D790 D102 D791 D201 D792 D202 D801 D203 D204 IC501 D206...

  • Page 49: Printed Wiring Board - Main Section (Side B)

    MDS-LSA1 6-7. PRINTED WIRING BOARD – MAIN SECTION (SIDE B) – • See page 41 for Circuit Board Location. • Semiconductor Location Ref. No. Location D301 IC101 IC201 IC351 IC431 IC801 Q790 Q791 Q792 Q793 There are a few cases that the part isn't mounted Q801 in model is printed on diagram.

  • Page 50: Schematic Diagram - Main Section (1/3)

    MDS-LSA1 6-8. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – • See page 44 for Waveforms. • See page 57 for IC Block Diagrams. • See page 65 for IC Pin Functions. • See page 49 for Printed Wiring Board. FUNCTION i.LINK...

  • Page 51: Schematic Diagram - Main Section (2/3)

    MDS-LSA1 6-9. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – • See page 44 for Waveforms. • See page 57 for IC Block Diagrams. • See page 63 for IC Pin Functions. • See page 49 for Printed Wiring Board. FUNCTION...

  • Page 52: Schematic Diagram - Main Section (3/3)

    MDS-LSA1 6-10. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – • See page 57 for IC Block Diagrams. • See page 49 for Printed Wiring Board.

  • Page 53: Printed Wiring Board - Power Section

    MDS-LSA1 6-11. PRINTED WIRING BOARD – POWER SECTION – • See page 41 for Circuit Board Location. There are a few cases that the part isn't mounted in model is printed on diagram.

  • Page 54: Printed Wiring Board - Panel Section

    MDS-LSA1 6-12. PRINTED WIRING BOARD – PANEL SECTION – • See page 41 for Circuit Board Location. • Semiconductor Location Ref. No. Location Ref. No. Location D120 B-12 Q120 A-12 D122 Q122 D123 Q123 D124 Q124 D126 Q125 D127 Q126...

  • Page 55: Schematic Diagram - Panel Section

    MDS-LSA1 6-13. SCHEMATIC DIAGRAM – PANEL SECTION – • See page 44 for Waveforms.

  • Page 56: Ic Block Diagrams

    MDS-LSA1 6-14. IC BLOCK DIAGRAMS IC151 CXD2662R (BD BOARD) 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 IC101 CXA2523AR (BD BOARD) SPINDLE SERVO...
  • Page 57 IC101 LA5643 (MAIN BOARD) DELAY IC801 LB1641 (MAIN BOARD) T.S.D O.C.P MOTOR MOTOR DRIVE DRIVE FWD/REV/STOP CONTROL LOGIC IC602 TLC2932IPW (MAIN BOARD) IC431 M5293L (MAIN BOARD) LOGIC LOGIC SELECT FIN-A FIN-B REFERENCE VOLTAGE REFERENCE ON/OFF – VOLTAGE 1/2 DIVIDER OVERHEAT OVERCURRENT PROTECTION LIMITTER...
  • Page 58 IC656 TC74HC4053F (MAIN BOARD) IC653 TC74HC161AF (CLIP BOARD) 15 14 RIPPLE ENABLE CARRY OUTPUT CLEAR LOAD ENABLE IC101 SN74HC595ANSR (PANEL BOARD) IC652 TC74HC125AF (CLIP BOARD) 1 OE 14 VCC 4 OE 2 OE 3 OE RCLK IC654 TC7W74F (CLIP BOARD) SRCLK SRCLR QH‘...

  • Page 59: Ic Pin Functions

    6-15. IC PIN FUNCTIONS • IC101 CXA2523AR RF Amplifier (BD BOARD) Pin No. Pin Name Function I-V converted RF signal I input I-V converted RF signal J input Middle point voltage (+1.5V) generation output 4 to 9 A to F Signal input from the optical pick-up detector Light amount monitor input Laser APC output...
  • Page 60 • IC151 CXD2662R Digital Signal Processor, Digital Servo Signal Processor (BD BOARD) Pin No. Pin Name Function FOK signal output to the system control (monitor output) MNT0 (FOK) “H” is output when focus is on MNT1 (SHCK) Track jump detection signal output to the system control (monitor output) MNT2 (XBUSY) Monitor 2 output to the system control (monitor output) MNT3 (SLOC)
  • Page 61 Pin No. Pin Name Function Data input/output for DRAM 50, 51 D2, D3 MVCI I (S) Clock input from an external VCO (Fixed at “L”) ASYO Playback EFM duplex signal output ASYI I (A) Playback EFM comparator slice level input AVDD —...
  • Page 62 Pin No. Pin Name Function Tracking servo drive PWM output (+) TFDR — +3V power supply (Digital) DVDD Focus servo drive PWM output (+) FFDR Focus servo drive PWM output (–) FRDR 176.4 kHz clock signal output (X’tal) (Not used) Sled servo drive PWM output (–) SRDR Sled servo drive PWM output (+)
  • Page 63 • IC501 M30805SGP SYSTEM CONTROL (MAIN BOARD) Pin No. Pin Name Function DATA(FL) Serial data signal output to the display driver. CLK(FL) Serial clock signal output to the display driver. L: Active C1ERROR C1 error input. (Fixed at L) RMC/ERROR Remote control input./AD error detect.
  • Page 64 Pin No. Pin Name Function MNT1 (SHCK) Track jump signal input from the CXD2662R VCC2 — Power supply. (+3.3V) EEP-WP EEP-ROM write protect signal output. L: write possibility SDA (EEP) Data signal input/output pin with the EEP-ROM. BCLK Not used. Read signal output.
  • Page 65 • IC601 CXD3202AR AUDIO LINK(MAIN BOARD) Pin. No. Pin Name Function Ground. 512FSI 512 fs input (used for flow control and ATRAC reception) Ground. XREQO/I ATRAC data request (Output for transmission, input for reception) ADTI ATRAC transmission data input XLATI ATRAC transmission data latch signal ACKI ATRAC transmission clock...
  • Page 66 Pin. No. Pin Name Function Ground. XINT Interrupt signal transmitted to host. (Not used.) Chip select signal from host Write signal from host Read signal from host “ ” Address latch signal from host (enabled for M16); Fixed at for Intel XRDY Ready signal transmitted to host (L = Ready) Power supply.
  • Page 67 Pin. No. Pin Name Function XCAS/TS20 DRAM XCAS. (Not used.) XOE/TS19 DRAM XOE. (Not used.) DRAM XWE. (Not used.) Ground. 127 to 134 DT15 to 8 DRAM data bit 15 to 8. (Not used.) Power supply. 136 to 143 DT7 to 0 DRAM data bit 7 to 0.
  • Page 68 • IC701 CXD1945R PHY, I LINK I/F(MAIN BOARD) Pin. No. Pin Name Function Connected to ground. Connected to ground. DVSS Ground. DVSS Ground. Link power status. Indicates whether link power is off or on. L: OFF H: ON LREQ Link request. Link issues a PHY register read, write, or bus request through LREQ pin. DVDD Power supply.
  • Page 69 Pin. No. Pin Name Function TA1P Arbitration / strobe output; arbitration / speed signal / data input. Reverse-phase I/O pins. TBON Arbitration / speed signal / data output; arbitration / strobe input. Reverse-phase I/O pins. TB0P Arbitration / speed signal / data output; arbitration / strobe input. Reverse-phase I/O pins. Arbitration / speed signal / data output;...

  • Page 70: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may The components identified by mark 0 or dotted line with mark 0 are critical for safety. have some differences from the original one. Replace only with part number specified. •...

  • Page 71: Chassis Section

    7-2. FRONT PANEL SECTION MDM-7X2B T911 not supplied The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-225-902-11 PANEL, BACK...

  • Page 72: Md Mechanism Section-1 (Mdm-7X2B)

    7-3. MECHANISM SECTION-1 (MDM-7X2B) supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * 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 73: Md Mechanism Section-2 (Mdm-7X2B)

    7-4. MECHANISM SECTION-2 (MDM-7X2B) HR901 S102 M101 M102 M103 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4725-099-A BD BOARD, COMPLETE...

  • Page 74: Electrical Parts List

    SECTION 8 ELECTRICAL PARTS LIST NOTE: Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks • Due to standardization, replacements in the • COILS When indicating parts by reference number, parts list may be different from the parts uH: µH please include the board name.
  • Page 75 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC181 8-759-481-17 IC MC74ACT08DTR2 R113 1-216-833-11 METAL CHIP 1/16W IC190 8-759-677-64 IC L88M35T R114 1-216-827-11 METAL CHIP 3.3K 1/16W IC195 8-759-640-41 IC BR24C08F-E2 R115 1-216-833-11 METAL CHIP 1/16W <...
  • Page 76 CLIP MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < SWITCH > 1-163-251-11 CERAMIC CHIP 100PF 1-163-251-11 CERAMIC CHIP 100PF S101 1-762-596-21 SWITCH, PUSH (1 KEY) (LIMIT SW) 1-163-251-11 CERAMIC CHIP 100PF S103 1-771-956-21 SWITCH, PUSH (1 KEY) (OUT SW) S104 1-771-955-21 SWITCH, PUSH (1 KEY) (PLAY SW) 1-163-251-11 CERAMIC CHIP...
  • Page 77 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C519 1-163-009-11 CERAMIC CHIP 0.001uF < CONNECTOR > C523 1-165-319-11 CERAMIC CHIP 0.1uF C526 1-163-009-11 CERAMIC CHIP 0.001uF CN201 1-568-683-11 PIN, CONNECTOR (PC BAORD) 2P C538 1-163-251-11 CERAMIC CHIP 100PF CN301 1-793-991-11 CONNECTOR, FFC/FPC 23P...
  • Page 78 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks Q793 8-729-029-49 TRANSISTOR DTA143TSA-TP R552 1-216-073-00 METAL CHIP 1/10W Q801 8-729-119-76 TRANSISTOR 2SA1115TP-EF R554 1-216-073-00 METAL CHIP 1/10W R567 1-216-073-00 METAL CHIP 1/10W Q802 8-729-900-80 TRANSISTOR UN4211-TA R568 1-216-073-00 METAL CHIP 1/10W...
  • Page 79 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4725-068-A PANEL BOARD, COMPLETE Q124 8-729-421-22 TRANSISTOR UN2211-TX Q125 8-729-421-22 TRANSISTOR UN2211-TX ******************** 4-225-908-01 HOLDER (FL) Q126 8-729-421-22 TRANSISTOR UN2211-TX 4-225-910-01 HOLDER (FUNCTION) Q127 8-729-421-22 TRANSISTOR UN2211-TX 4-225-911-01 HOLDER (DISPLAY) Q129 8-729-421-22 TRANSISTOR UN2211-TX...
  • Page 80 MDS-LSA1 PANEL TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks S282 1-762-875-21 SWITCH, KEYBOARD (CD SYNCHRO) MISCELLANEOUS S283 1-762-875-21 SWITCH, KEYBOARD (REC z ) ************* S284 1-762-875-21 SWITCH, KEYBOARD (x) 1-773-037-11 WIRE (FLAT TYPE) (17 CORE)

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