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E0001/ fingerprints, etc.), scratched, or the deck needs in order to operate. MEMORY NG substandard in quality. , Consult your nearest Sony dealer. , Replace the disc and repeat the There is a problem with the optical recording procedure. pickup.
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1. While pressing the AMS knob and x button, connect the power plug to the outlet, and release the AMS knob and x button. When the test mode is set, “[Check]” will be displayed. 2. Rotate the AMS knob and when “[Service]” is displayed, press the YES button. 3.
Table of Error Codes TABLE OF CONTENTS Error Code Description 1. SERVICING NOTES ..........Could not load 2. GENERAL Loading switches combined incorrectly ................ 11 Timed out without reading the top of PTOC 3. DISASSEMBLY Could read top of PTOC, but detected error 3-1.
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CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
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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...
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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.
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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 23) •...
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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. •...
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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 Stereo Monaural This is 2-bit display. Normally 01. 01:Normal audio. Others:Invalid Invalid Audio (Normal) Digital copy...
SECTION 2 GENERAL 8 9 0 qa STANDBY indicator J button @/1 (power) button REPEAT button Remote sensor PLAY MODE button MDLP indicator j button A EJECT button l AMS L /PUSH ENTER button MENU/NO button CLEAR button YES button TIME button H button SF EDIT button and indicator...
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 EJECT button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating.
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4-5. SELECTING THE TEST MODE There are 25 types of test modes as shown below. The groups can be switched by rotating the AMS knob. After selecting the group to be used, press the YES button. After setting a certain group, rotating the AMS knob switches between these modes. Refer to “Group”...
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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 Rotate the AMS knob and display “CPLAY1 MODE”(C34). 3 Press the YES button to change the display to “CPLAY1 MID”. 4 When access completes, the display changes to “C = AD = ”.
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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.
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4-8. MEANINGS OF OTHER DISPLAYS Contents Display When Lit When Off Servo ON Servo OFF Tracking servo OFF Tracking servo ON Recording mode ON Recording mode OFF SYNC CLV low speed mode CLV normal mode L.SYNC ABCD adjustment completed OVER Tracking offset cancel ON Tracking offset cancel OFF Tracking auto gain OK...
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 23) 5-6-3. Iop Compare (See page 23) 5-6-4.
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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 19) 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Replace OP or IO195 (See page 26) 5-9.
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-260B) 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.
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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 m button The following describes how to create a continuous recording or M button to move the optical pick-up.) disc.
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5-6-4. Auto Check 6. Observe the waveform of the oscilloscope, and check that the This test mode performs C-REC and C-PLAY automatically for specified value is satisfied. Do not rotate the AMS knob. mainly checking the characteristics of the optical pick-up. To (Read power traverse checking) perform this test mode, the laser power must first be checked.
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5-6-8. C PLAY Check 16. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not rotate the AMS knob. MO Error Rate Check (Traverse Waveform) Checking Procedure : 1. Load a continuously recorded test disc (MDW-74/GA-1). (Refer to “5-5.
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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.
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7. Then, rotate the AMS knob and display “LDPWR CHECK”. 5-12. TRAVERSE ADJUSTMENT 8. Press the YES button once and display “LD 0.9 mW $ ”. Connection : Check that the reading of the laser power meter become 0.85 to Oscilloscope 0.91 mW.
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5-13. FOCUS BIAS ADJUSTMENT 11. Rotate the AMS knob until the waveform of the oscilloscope 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.
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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. Rotate the AMS knob and display “CPLAY1 MODE”. If the adjustment results becomes “Adjust NG!”, the Optical pick- 3.
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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 6.)
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. VOL-SEL board Note: PT board...
MDS-JE640 6-4. SCHEMATIC DIAGRAM – BD SECTION (1/2) – • See page 34 for Waveforms. • See page 46 for IC Block Diagrams. • See page 48 for IC Pin Functions. • See page 35 for Printed Wiring Board. FUNCTION...
MDS-JE640 6-5. SCHEMATIC DIAGRAM – BD SECTION (2/2) – • See page 34 for Waveforms. • See page 46 for IC Block Diagrams. • See page 49 for IC Pin Functions. • See page 35 for Printed Wiring Board. FUNCTION...
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...
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• 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)
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Pin No. Pin Name Function Data input/output for DRAM 50, 51 D2, D3 MVCI Clock input from an external VCO (Fixed at “L”) I (S) ASYO Playback EFM duplex signal output ASYI I (A) Playback EFM comparator slice level input AVDD —...
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• IC1 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 A1-IN A1 Control input. (Fixed at L) SIRCS Remote control input.
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Pin No. Pin Name Function HLDA/ALE Microprocessor mode output. (Not used.) MNT2 (XBUSY) In the state of executive command from the CXD2662R — Ground. (MNT1) SHCK Track jump signal input from the CXD2662R — Power supply. (+3.3V) EEP-WP EEP-ROM write protect signal output. L: write possibility Data signal input/output pin with the EEP-ROM.
SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Color Indication of Appearance Parts Example: The components identified by mark 0 or have some differences from the original one. KNOB, BALANCE (WHITE) dotted line with mark 0 are critical for safety. Replace only with part number specified.
7-2. FRONT PANEL SECTION not supplied supplied with J791 FL780 supplied with RV791 not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-677-821-11 HP BOARD X-4952-917-1 PANEL ASSY, FRONT (BLACK) (AEP,UK,CIS,SP,MY) 3-917-216-11 KNOB (TIMER) (BLACK) X-4952-918-1 PANEL ASSY, FRONT (SILVER) 3-917-216-71 KNOB (TIMER) (SILVER) 1-677-819-11 KEY-SW BOARD...
7-4. MECHANISM SECTION-2 (MDM-7A) HR901 S102 M101 M102 M103 The components identified by Les composants identifiés par mark 0 or dotted line with mark une marque 0 sont critiques 0 are critical for safety. pour la sécurité. Replace only with part number Ne les remplacer que par une specified.
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.
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Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC153 8-759-671-27 IC MSM51V4400E-70TS-K R111 1-216-833-91 RES-CHIP 1/16W IC171 8-759-096-87 IC TC7WU04FU(TE12R) R112 1-216-829-11 METAL CHIP 4.7K 1/16W IC181 8-759-481-17 IC MC74ACT08DTR2 R113 1-216-833-91 RES-CHIP 1/16W IC190 8-759-460-72 IC BA033FP-E2 R114 1-216-827-11 METAL CHIP 3.3K...
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