Sony MDSJE320 - MiniDisc Recorder Service Manual
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Sony MDSJE320 - MiniDisc Recorder Service Manual

Sony MDSJE320 - MiniDisc Recorder Service Manual

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SERVICE MANUAL
MICROFILM
MDS-JE320
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Type
SPECIFICATIONS
US Model
Canadian Model
AEP Model
MDS-JE510
MDM-3GC
KMS-260A/J1NP
MINIDISC DECK

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Summary of Contents for Sony MDSJE320 - MiniDisc Recorder

  • Page 1 MDS-JE320 SERVICE MANUAL US Model Canadian Model AEP Model Model Name Using Similar Mechanism MDS-JE510 MD Mechanism Type MDM-3GC Optical Pick-up Type KMS-260A/J1NP SPECIFICATIONS MINIDISC DECK MICROFILM...
  • Page 2 COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS PUBLISHED BY SONY. SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    SAFETY CHECK-OUT TABLE OF CONTENTS After correcting the original service problem, perform the following 1. SERVICING NOTE ............5 safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, 2. GENERAL ................8 and all other exposed metal parts for AC leakage.
  • Page 4 The deck has a self-diagnosis display. This function shows a three-digit display (a combination of a letter and figures) and the corresponding message alternately, so you can check the deck’s condition. If such a display appears, check the following table in order to resolve the problem. Should any problem persist, consult your nearest Sony dealer. Self-diagnosis display...

  • Page 5: Servicing Note

    SECTION 1 SERVICING NOTE JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-124-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. 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) TEO : TRK error signal (Traverse adjustment) : Reference level for checking the signal...
  • Page 6 RETRY CAUSE DISPLAY MODE • In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent display tube. This is useful for locating the faulty part of the unit. • The data amount stored in DRAM, number of retries, and retry cause are displayed. Each is displayed in hexadecimal number. •...
  • Page 7 Reading the Retry Cause Display Higher Bits Lower Bits Hexa- Hexadecimal Cause of Retry Occurring conditions decimal b7 b6 b5 b4 b3 b2 b1 b0 Binary Spindle is slow When spindle rotation is detected as slow (Not used) (Not used) When ADER was counted more than ader5 five times continuously...

  • Page 8: General

    SECTION 2 GENERAL Location of Parts and Controls !ª !• !¶ !§ !∞ !¢ !£ 1/u (Power) switch REC LEVEL knob !£ r REC (recording) button Remote sensor !¢ p (stop) button Display window !∞ P (pause) button Disc compartment !§...

  • Page 9: Disassembly

    SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 4 Case 3-1. CASE AND FRONT PANEL ASSEMBLY 3 Screw 1 Two screws (case 3 TP 2) (Case 3 TP 2) 2 Two screws (Case 3 TP 2) 5 Ground terminal claw 6 Flat type wire...

  • Page 10: Bd Board

    3-3. BD BOARD 2 Flat type wire (15 core) 4 OP relay flexible board 1 Flexible board (Over write head) 5 BD board 3 Screw (BVTT2 4) 3-4. SUB CHASSIS 1 Two step screws 2 Two step screws 3 Two insulators 4 Two insulators Part A Part A...

  • Page 11: Shutter Assembly

    3-5. SHUTTER ASSEMBLY 1 Stepper washer Shutter assembly Shaft (lid) 2 Shaft (shutter) 3 Shutter assembly Hole B Shaft (shutter) Hole A When installing, install the shaft (shutter) into the hole A as shown in the figure before installing the shaft (lid) into the hole B.

  • Page 12: Slider Complete Assembly

    3-7. SLIDER COMPLETE ASSEMBLY 3 Set the shaft of Gear (LA) to be at the position in the figure. claw claw 4 Remove the slider complete assembly 1 Screw in the direction of arrow with putting (M1.7 2) 2 Retainer (gear) out of two claws.

  • Page 13: Test Mode

    SECTION 4 TEST MODE 4-1. PRECAUTIONS FOR USE OF TEST MODE 1 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 §EJECT button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating.
  • Page 14 4-5-1. Operating the Continuous Playback Mode Entering the continuous playback mode 1 Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.) 2 Rotate the AMS knob and display “CPLAY MODE”. 3 Press the YES button to change the display to “CPLAY MID”. 4 When access completes, the display changes to “C1 = AD = ”.
  • Page 15 4-6. FUNCTIONS OF OTHER BUTTONS Function Contents · Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF. Stops continuous playback and continuous recording. The sled moves to the outer circumference only when this is pressed. The sled moves to the inner circumference only when this is pressed.

  • Page 16: Electrical Adjustments

    SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. PRECAUTIONS FOR CHECKING LASER DIODE EMISSINON To check the emission of the laser diode during adjustments, never view directly from the top as this may lose your eye-sight. Optical BD Board Pick-up IC171 D101 IC101, IC121, IC192 5-2.
  • Page 17 5-6. LASER POWER ADJUSTMENT 5-5. TEMPERATURE COMPENSATION OFFSET Connection : ADJUTMENT Laser power Save the temperature data at that time in the non-volatile memory meter as 25 ˚C reference data. Note : Usually, do not perform this adjustment. Perform this adjustment in an ambient temperature of 22 ˚C Optical pick-up to 28 ˚C.
  • Page 18 5-7. TRAVERSE ADJUSTMENT 11. Rotate the AMS knob until the waveform of the oscilloscope moves closer to the specified value. Connection : In this adjustment, waveform varies at intervals of approx. 2%. Oscilloscope Adjust the waveform so that the specified value is satisfied as much as possible.
  • Page 19 MDS-JE320 5-8. FOCUS BIAS ADJUSTMENT 5-9. ERROR RATE CHECK 5-11. ADJUSTING POINTS AND CONNETING POINTS Adjusting Method : 5-9-1. CD Error Rate Check Load a continuously recorded disc (Refer to “5-4. Creating [BD BOARD] (SIDE A) Continuously Recorded Disc”.). Checking Method : Rotate the AMS knob and display “CPLAY MODE”.

  • Page 20: Diagrams

    MDS-JE320 SECTION 6 DIAGRAMS DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR OVER WRITE HEAD DRIVE EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER, 6-1. BLOCK DIAGRAMS IC181 ATRAC ENCODER/DECODER, 2M-BIT DRAM IC121 — BD Section — SCTX XINT Q180 HR901 • Signal path OVER WRITE HEAD : PB...

  • Page 21: Main Section

    MDS-JE320 — MAIN Section — DIGITAL OPTICAL IN A/D, D/A CONVERTER IC307 IC314 RV701 REC LEVEL IC353 INLM INLP ADDT INRP CONVERTER R-ch INRM R-ch 10 11 J301 FRONT-END X301 IC301 LINE LRCK 22MHz (ANALOG) 512FS ADDT DADT 25 28 26 SCTX XINT R-ch...

  • Page 22: Circuit Boards Location

    MDS-JE320 • Waveform THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • BD SECTION • MAIN SECTION (In addition to this necessary note is printed in each 6-2. CIRCUIT BOARDS LOCATION block.) IC101 1,2 I, J IC316 @¶ (XOUT) (PLAY mode) For schematic diagrams.

  • Page 23: Printed Wiring Board - Bd Section

    MDS-JE320 6-3. Printed Wiring Board — BD Section — • See page 25 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D101 D181 D183 IC101 F-14 IC103 B-15 IC121 D-12 IC122 IC123 E-10 IC124 F-12 (Page 45) IC152 B-12 IC171 IC181...

  • Page 24: Schematic Diagram — Bd Section (1/2)

    MDS-JE320 6-4. Schematic Diagram — BD Section (1/2)— • See page 26 for Waveforms. • See page 49 for IC Block Diagrams. • See page 54 for IC Pin Functions. (Page 31) (Page 32) — 29 — — 30 —...

  • Page 25: Schematic Diagram - Bd Section (1/2)

    MDS-JE320 6-5. Schematic Diagram — BD Section (2/2) — • See page 26 for Waveforms. • See page 49 for IC Block Diagrams. • See page 54 for IC Pin Functions. (Page 29) (Page 30) BR24C01AF (Page 36) (Page 47) (Page 35) —...

  • Page 26: Printed Wiring Board - Main Section

    MDS-JE320 6-6. Printed Wiring Board — Main Section — • See page 25 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D301 G-11 D302 G-11 D303 G-10 MAIN BOARD D304 G-10 D305 G-10 D306 G-10 D307 D308 J301 D309 LINE (Page 41)

  • Page 27: Schematic Diagram - Main Section (1/3)

    MDS-JE320 6-7. Schematic Diagram — Main Section (1/3) — • See page 26 for Waveforms • See page 54 for IC Pin Functions. (PAGE 32) (PAGE 31) — 35 — — 36 —...

  • Page 28: Schematic Diagram - Main Section (3/3)

    MDS-JE320 6-8. Schematic Diagram — Main Section (2/3) — • See page 26 for Waveforms. • See page 49 for IC Block Diagrams. • See page 54 for IC Pin Functions. — 37 — — 38 —...

  • Page 29: Schematic Diagram — Main Section (3/3)

    MDS-JE320 6-9. Schematic Diagram — Main Section (3/3) — • See page 49 for IC Block Diagram. (PAGE 44) — 39 — — 40 —...

  • Page 30: Printed Wiring Board - Display Section

    MDS-JE320 6-10. Printed Wiring Board — DISPLAY Section — • See page 25 for Circuit Boards Location. DISPLAY BOARD S764 FLUORESCENT INDICATOR TUBE 1-661-891- (21) C (PAGE 33) CONTROL (SW) BOARD EJECT SW BOARD REC LEVEL S776 CN705 AMS (PUSH ENTER) EJECT (21) 1-661-893-...

  • Page 31: Schematic Diagram - Display Section

    MDS-JE320 6-11. Schematic Diagram — DISPLAY Section — • See page 26 for Waveforms. (PAGE 39) — 43 — — 44 —...

  • Page 32: Printed Wiring Board - Switch Section

    MDS-JE320 6-12. Printed Wiring Board — Switch Section — • See page 25 for Circuit Boards Location. (Page 28) — 45 — — 46 —...

  • Page 33: Schematic Diagram - Switch Section

    MDS-JE320 6-13. Schematic Diagram — Switch Section — (Page 31) — 47 — — 48 —...
  • Page 34 6-14. IC BLOCK DIAGRAMS IC121 CXD2650R • BD section IC101 CXA2523R 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 43 42 75 AUX2 SPINDLE USROP GENERATOR...
  • Page 35 IC121 CXD2652AR 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 75 AUX2 SPINDLE GENERATOR SERVO 74 TE MNT0 73 SE MNT1 MONITOR EACH 72 AVSS CONTROL BLOCK...
  • Page 36 IC171 XL24C01AF 1024 BIT EEPROM ARRAY 8BIT 7BIT ADDRESS SLAVE WORD DATA TEST 7BIT DECODER ADDRESS RESISTOR RESISTOR START STOP CONTROL CIRCUIT HIGH VOLTAGE VOLTAGE GENERATION CIRCUIT IC192 L88MS33T START UP REFERENCE ERROR CIRCUIT VOLTAGE ON/OFF CURRENT PROTECTOR CONTROL LIMITER VOUT •...
  • Page 37 IC308 M5218AL IC310 M5293L REFERENCE VOLTAGE V– REFERENCE – ON/OFF VOLTAGE OVERHEAT OVERCURRENT PROTECTION LIMITTER IC309 LA5620 VREF – + – + 3.3V DELAY DELAY CIRCUIT CIRCUIT – – + – + – + STBY ANA5 SYS3.3 P. DOWN S. RESET BACK IC311 LB1641 DRIVER...

  • Page 38: Ic Pin Functions

    6-15. IC PIN FUNCTIONS • IC101 RF Amplifier (CXA2523R) 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 APCREF...
  • Page 39 • IC121 Digital Signal Processor, Digital Servo Signal Processor, EFM/ACIRC Encoder/Decoder, Shock-proof Memory Controller, ATRAC Encoder/Decoder, 2M Bit DRAM (CXD2650R or CXD2652AR) Pin No. Pin Name Function FOK signal output to the system control MNT0 (FOK) “H” is output when focus is on MNT1 (SHCK) Track jump detection signal output to the system control MNT2 (XBUSY)
  • Page 40 Pin No. Pin Name Function Data input/output for DRAM (Used : CXD2652AR, Not used : CXD2650R) 48, 49 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 41 Pin No. Pin Name Function TFDR Tracking servo drive PWM output (+) DVDD — +3V power supply (Digital) FFDR Focus servo drive PWM output (+) FRDR Focus servo drive PWM output (–) 176.4 kHz clock signal output (X’tal) (Not used) SRDR Sled servo drive PWM output (–) SFDR...
  • Page 42 • IC307 A/D, D/A converter (CXD8607N) Pin No. Pin Name Function INRP Rch analog (+) input INRM Rch analog (–) input REFI A/D reference voltage input (+3.2V) — +5V power supply (A/D, analog) AVss — Ground (A/D, analog) A/D analog block power down “L”: Power down —...
  • Page 43 Pin No. Pin Name Function Lch PLM output 1 — +5V power supply (D/A, digital) — +5V power supply (A/D, digital) — — Ground (A/D, digital) TEST2 Test pin (Fixed at “L”) TEST3 — Ground (A/D, digital) SS1 (LF) — Not used —...
  • Page 44 • IC316 System Control (RU8X11AMF-0109/RU8X11AMF-0115) Pin No. Pin Name Function DAOUT 0 Test pin. C1 is output when test mode (Not used) DAOUT 1 Test pin. ADER is output when test mode (Not used) 3 to 5 KEY 0 to KEY 2 Key input pin (D/A input) CHUCK IN Detection input from the chucking-in switch “L”: Chucking...
  • Page 45 Pin No. Pin Name Function MNT2 Monitor 2 input from the CXD2650R or CXD2652AR MNT3 Monitor 3 input from the CXD2650R or CXD2652AR LED0 Drive output to the POWER ON/STANDBY display LED — — Not used — — Not used BUS OUT Not used —...
  • Page 46 Pin No. Pin Name Function DIG-RST Reset signal output to the CXD2650R or CXD2652AR and motor driver Reset: “L” BEEP BEEP PWM output (Not used) DA-RST Reset signal output to the D/A, A/D converter Reset: “L” 84, 85 DSEL A, DSEL B Digital input selection signal output Laser modulation switching signal output Playback power: “L”, stop: “H”...

  • Page 47: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: The components identified by • Hardware (# mark) list and accessories and • Items marked “*” are not stocked since they are mark ! or dotted line with mark packing materials are given in the last of this seldom required for routine service.

  • Page 48: Front Panel Section

    3-917-216-21 KNOB (TIMER) 4-983-657-01 KNOB (AMS) 4-983-653-41 BUTTON (MAIN) 4-983-651-01 WINDOW (DISPLAY) * 62 1-661-893-11 EJECT SW BOARD 4-963-404-21 EMBLEM (5-A), SONY 4-977-593-11 RING (DIA. 50), ORNAMENTAL (AEP) * 56 A-4724-246-A DISPLAY BOARD, COMPLETE (US,CND) * 56 A-4724-275-A DISPLAY BOARD, COMPLETE (AEP) 4-951-620-01 SCREW (2.6X8), +BVTP...

  • Page 49: Mechanism Deck Section (1) (Mdm-3Gc)

    7-3. MECHANISM DECK SECTION (1) (MDM-3GC) not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-628-167-01 SCREW, STEP 1-660-966-11 PC BOARD, OP RALAY FLEXIBLE 4-987-327-01 INSULATOR A-4699-770-A BD BOARD, COMPLETE 4-986-959-11 WASHER (STOPPER) 1-777-517-11 WIRE (FLAT TYPE) (15 CORE) 4-997-456-11 SHAFT (SHUTTER A)

  • Page 50: Mechanism Deck Section (2) (Mdm-3Gc)

    7-4. MECHANISM DECK SECTION (2) (MDM-3GC) not supplied not supplied not supplied M901 M903 M902 HR901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4672-138-A SLIDER ASSY BOARD, COMPLETE 3-366-890-11 SCREW (M1.4) * 252 4-983-439-01 BRACKET (DAMPER) ! 267 8-583-028-02 OPTICAL PICK-UP KMS-260A/J1NP 3-953-235-01 DAMPER, OIL...

  • Page 51: Electrical Parts List

    SECTION 8 ELECTRICAL PARTS LIST Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts The components identified by In each case, u: µ , for example: list may be different from the parts specified in the mark ! or dotted line with mark uA...: µ...
  • Page 52 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC124 8-759-473-29 IC MN41V4400SJ-08-T1 R137 1-216-025-91 RES,CHIP 1/10W IC152 8-759-430-25 IC BH6511FS-E2 R140 1-216-029-00 METAL CHIP 1/10W IC171 8-759-484-73 IC BR24C01AF-E2 R141 1-216-295-91 SHORT IC181 8-759-095-65 IC TC74ACT540FS R142 1-216-073-00 METAL CHIP 1/10W...
  • Page 53 CONTROL (SW) DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4724-247-A CONTROL(SW) BOARD, COMPLETE (US,CND) A-4724-246-A DISPLAY BOARD, COMPLETE (US,CND) ************************************ ******************************** A-4724-276-A CONTROL(SW) BOARD, COMPLETE (AEP) A-4724-275-A DISPLAY BOARD, COMPLETE (AEP) ********************************* ***************************** < CAPACITOR > 2-389-320-01 CUSHION 4-983-462-01 HOLDER (FL) C701...
  • Page 54 EJECT SW MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-661-893-11 EJECT SW BOARD C313 1-164-159-11 CERAMIC 0.1uF C314 1-126-926-11 ELECT 1000uF ************** C315 1-164-159-11 CERAMIC 0.1uF < CONNECTOR > C316 1-126-934-11 ELECT 220uF C317 1-164-159-11 CERAMIC 0.1uF CN705...
  • Page 55 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D306 8-719-024-99 DIODE 11ES2-NTA2B R115 1-249-429-11 CARBON 1/4W D307 8-719-024-99 DIODE 11ES2-NTA2B R116 1-249-421-11 CARBON 2.2K 1/4W F D308 8-719-109-89 DIODE RD5.6ESB2 R117 1-249-417-11 CARBON 1/4W F D309 8-719-024-99 DIODE 11ES2-NTA2B R118...
  • Page 56 ! are critical for safety. pour la sécurité. Replace only with part number Ne les remplacer que par une specified. pièce portant le numéro spécifié. Sony Corporation 98F1664-1 Printed in Japan ©1998.6 Home A&V Products Company 9-922-894-11 Published by Quality Assurance Dept.

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