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- Stereo phone cables / (RJL2P004B08A).......2 pcs. - Remote control transmitter / (EUR645272)......1 pc. - Batteries / (R6, AA, UM-3)......2 pcs. Note: There are available on sales route. 2. Handling Precautions for MD Unit The laser diode in the MD unit (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body.
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Fig. 2-1. 2.2. Grounding for electrostatic breakdown prevention 2.2.1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 2-2. Fig. 2-2. 2.2.2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the MD unit (optical pickup) is placed, and ground the sheet.
5. Location of Controls 6. Self-Diagnostic Function This unit is equipped with a self-diagnostic function which, in the event of a malfunction, automatically display a code indicating the nature of the malfunction. Use this self-diagnostic function when servicing the unit. 6.1.
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2. With no MD loaded in the unit, press and hold the STOP button ( ) for at least 2 seconds. And then while still pressing the STOP button ( ), press the F. SEARCH button ( ) for at least 2 seconds.
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6.3. Clearing the self-diagnostic function The contents of abnormality display are stored in memory. In order to clear the memory, continue to press the STOP button ( ) for at least 5 seconds while in the self-diagnostic function. The memory will clear. Always be sure to clear this memory after completing repair.
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7.3. Checking the FL display All buttons works normally except the POWER button (POWER), FL display and LED turns on and off at 0.5 second interval. Refer to Fig. 7-4. Fig. 7-5. Fig. 7-4. Fig. 7-5. The self check function can be canceled by pressing the POWER button (POWER) or pressing and hold the STOP button ( ) for at least 2 seconds.
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- Check the main P.C.B. as shown below. 8.2. Checking for the FL P.C.B. and operation (1) P.C.B. - Follow the (Step 1) - (Step 3) of item 8.1.
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- Check the FL P.C.B. and operation (1) P.C.B. as shown below. 8.3. Removal of the FL P.C.B., operation (1) P.C.B., operation (2) P.C.B. and sensor P.C.B. - Follow the (Step 1) - (Step 3) of item 8.1. - Follow the (Step 1) , (Step 2) of item 8.2.
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8.4. Removal of the power switch P.C.B. - Follow the (Step 1) - (Step 3) of item 8.1. - Follow the (Step 1) , (Step 2) of item 8.2.
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8.5. Checking for the MD servo P.C.B. 8.5.1. Checking for the MD servo P.C.B. / (A side) - Follow the (Step 1) - (Step 3) of item 8.1. - Check the MD servo P.C.B. (A side) as shown below. 8.5.2. Checking for the MD servo P.C.B. / (B side)
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- Check the MD servo P.C.B. (B side) as shown below.
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8.6. Replacement for the magnetic head and optical pickup - Follow the (Step 1) - (Step 3) of item 8.1.
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8.7. Replacement for the belt and loading motor - Follow the (Step 1) - (Step 3) of item 8.1.
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8.8. Replacement for the traverse motor - Follow the (Step 1) - (Step 3) of item 8.1. - Follow the (Step 1) - (Step 11) of item 8.7.
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9. Schematic Diagram Notes - This schematic diagram may be modified at any time with the development of new technology. Notes: PROTECT det. switch REFLECT det. switch LOAD OPEN det. switch DISC IN det. switch LOAD PLAY/REC det. switch LOAD PLAY det. switch LOAD TRG det.
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F. search switch (SEARCH S903: Editing mode switch (EDIT) S904: Enter switch used in editing (ENTER) S905: Track mark mode select/character skip switch (TRACK MARK/CHARA SKIP) S906: Display mode select/character select switch (DISP/CHARA) S907: Eject switch ( EJECT) S908: Stop switch ( S909: Pause switch ( S910:...
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Input selector switch in ANALOG position (INPUT) S903A: Recording mode selector switch in MONO position (REC MODE) VR1: Laser power adjustment VR VR801: Headphones level contorl VR (LEVEL) VR851: Recording level control VR (REC LEVEL) VR901: JOG/skip dial VR / (JOG/PUSH SET - Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard.
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: MD playback signal line : MD recording signal line 10. Schematic Diagram 11. Printed Circuit Board Diagram 12. Type Illustration of ICs, Transistors and Diodes 13. Wiring Connection Diagram 14. Block Diagram 15. Troubleshooting Guide 16. Terminal Function of ICs 16.1.
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Terminal Function Name 1 CENVD D signal detection input LD amp output terminal 3 APC PD Photo diode detection input LD IN LD amp input APC amp reference voltage input 6 TEMP IN Temperature sensor amp input TEMP Temperature sensor amp output ADIP ADIP FM signal output TOFS...
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F 2 signal input Terminal Function Name 42 CLPF1 APP correction CPF capacitor connect terminal 43 CLPF1 RF equalizer adjustment resistor connect terminal Main beam A signal input Main beam B signal input Main beam C signal input Main beam D signal input 48 CENVC C signal detection input 16.2.
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Terminal Function Name Power cut 2 input Focus drive signal input Tracking drive signal input 16.3. IC3 (MN66616RA4): / ATRAC Encoder/Decoder, Servo Signal Processor Function Terminal Name ADIP ADIP FM signal input Lens position signal input Focus error signal input Tracking error signal input AS signal input 6 DRMONI...
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Function Terminal Name RAD9 DRAM address output RAD0 RDT3 I/O DRAM data input/output RDT0 47 NRAS DRAM row address strobe signal output 48 NCAS DRAM column address strobe signal output DRAM write enable signal output 50 NRST Reset signal input 51 SELAD MSP/MDA, I/F address select signal input...
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Function Terminal Name Reserved (Not used, connected to GND) Reserved (Not used, connected to GND) Reserved (Not used, connected to GND) Reserved (Not used, connected to GND) 82 EXSYSCK - External system clock input (Not used, connected to GND) 83 DV Power supply terminal Crystal oscillator (f=16.9344 MHz) 86 VD...
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Terminal Function Name DAC reset signal output (L: reset) DE emphasis signal output (L: DE emphasis) MUTE Muting signal output (Not used, open) 4 AD RST AD reset signal output (L: reset) RF amp standby control signal STBY output Power supply control output Reset signal output LOAD1 Loading motor drive 1 output...
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Terminal Function Name 31 V Power supply terminal 2(3V) OSC1 Crystal oscillator (f=10.02 MHz) OSC2 GND terminal Not used, connected to GND Not used, open GND terminal 38 TEST03 Test terminal (Not used, open) 39 EEPCS EEPROM chip select signal output (Not used, open) 40 EEPCK EEPROM clock signal output...
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Terminal Function Name 60 VREF- Connected to GND TEMP Temperature sensor input KEY1 Operation key signal input KEY2 Operation key signal input Test signal input (Not used, open) LOAD Test signal input (Not used, open) TEST 66 LOAD P Test signal input (Not used, open) Test signal input (Not used, open) TEST KEY / IN...
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Terminal Function Name I/O DRAM data 1 input/output I/O DRAM data 2 input/output DRAM write enable input DRAM row address strobe input DRAM address 9 input DRAM address 0 input DRAM address 1 - 3 input Power supply terminal DRAM address 4 - 8 input DRAM output enable input (Not used, connected to GND) DRAM column address strobe...
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Function Terminal Name JOG LED ON/OFF signal output TIMER (PLAY) signal input Communication clock signal output for IC10 Data signal input from IC10 Data signal output for IC10 TIMER (REC) signal input Mono/stereo select signal input Digital 1/2 select signal input Analog signal input Flash ROM data signal output (Not used, connected to GND via...
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Function Terminal Name 95 P102/AN2 Not used, connected to GND 96 P101/AN1 Not used, connected to GND GND terminal 98 P100/AN0 Not used, connected to GND 99 VREF Reference voltage input Power supply terminal 100 AV 17. Measurements and Adjustments Note: Because this unit uses the optical magnetic recording, the unit outputs over 10 times more laser than a CD player does.
- Do not allow the write power to even momentarily reach or exceed 5.5 mW. Doing so will result in damage to the optical pickup. - Do not set the unit to the laser power adjustment mode with the MD loaded. Doing so may result in damage to the MD. 17.3.
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Fig. 17-4. 4. Confirm that the reading of the laser power meter is within the specified range. If it is not within the specified range, adjust by turning VR1. Refer to Fig. 17-5. Fig. 17-5. Specified range (read power): 600 µ µ µ µ W or lower Caution: Proceeding on to the subsequent adjustment procedure with the read power exceeding 600 µ...
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the optical pickup. 7. Press “3” on the remote control transmitter. “ROM LASER” will be displayed to indicate the ROM data confirmation mode. 8. Confirm that the reading of the laser power meter is within the specified range. Specified range (ROM data laser power): / 540 µ µ µ µ W ~ 660 µ µ µ µ W 9.
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Ref. No. Part No. Part Name & Description Remarks RHD30035-K1 SCREW RKM0152-K TOP CABINET XTBS3+8JFZ1 SCREW REX0945 WIRE ASS’Y <MAVD> REZ1159 FLAT CABLE (30P) <MAVD> REZ1160 FLAT CABLE (20P) <MAVD> RHD30053 SCREW RKA0040BZ-K1 LEG BASE <MAVD> RYF0501-Q DOOR UNIT <MAVD> RGK1111-K RHD26033 SCREW...
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Ref. No. Part No. Part Name & Description Remarks RHD20053 SCREW RMB0504 SPRING RMG0447-K DAMPER XTN17+6GFZ SCREW RXQ0558 HOLDER RED0047 MAGNETIC HEAD EUR645272 REMOTE CONTROLLER <MAVD> / A1-1 UR64EC1987B R/C BATTERY COVER RJA0043-1C AC POWER CORD (E,EG) / <MAVD> / RJA0044-C AC POWER CORD (EB) <MAVD>...
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AN8772FHQ +B11 +B11 +B11 RF AMP MD OPTICAL PICKUP VREF VREF OFT IN SERIAL&PARALLEL SELECT COMP SIGNAL CONV./GATE OFT O DARK DET. CBD O RF BDO COMP 3T DET. BDO/ NRFDET TRCRS TRCRS AS BDO COMP ASGAIN 3 tap AS GAIN COMP 3 tap FBAL...
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TC74HCT00AFL L700 IC11 MAGNETIC Q10,11 NAND GATE HEAD MN66616RA4 +B10 HEAD M51V4400D7FS DRIVE IC72 ATRAC ENCODER/DECODER, 4M DRAM SERVO SIGNAL PROCESSOR OPTICAL NEFMON 1,2, 14~18 4 23 24,25 9~12 43~46 30~43 47 48 49 78~81 DIGITAL NREFM MONI0~3 EXTERNAL DRAM CHIP CONTROL PEFMS CONTROL...
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FL P.C.B. W902 R905 W901 B C E Q905 R903 SWITCH P.C.B. Q904 B C E Q903 B C E C909 FL901 Z902 1 2 3 4 5 6 7 8 9 10 Z903 (REP2575A) ELECTRICAL PARTS LOCATION Ref. No. Lo.
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MAIN P.C.B. ELECTRICAL PARTS LOCATION Ref. No. Lo. No. Ref. No. Lo. No. Ref. No. Lo. No. MAIN P.C.B. Q305 IC301 R306 C307 IC302 R307 C308 IC303 R308 C309 Q453 IC304 R309 C310 B C E IC401 R310 C311 IC402 R311 C312 B C E...
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SCHEMATIC DIAGRAM-1 :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE MD SERVO CIRCUIT NOTE: :MD RECORDING SIGNAL LINE The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2" indicates the schematic diagram serial number located on the left corner in the schematic diagram.
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SCHEMATIC DIAGRAM-2 :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE 2.6V PLAY T U V W 0.9V TP150 TP149 0.5 s. 0.1V/DIV. TP148 TP122 TP52 TP123 2.2K 0.039 C122 TP36 PLAY 0.2V 0.5 s. 50mV/DIV. PLAY 0.45V 36 35 34 33 32 31 30 29 28 27 26 25 0.5 s.
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SCHEMATIC DIAGRAM-3 MD SERVO CIRCUIT :POSITIVE VOLTAGE LINE 2.6V 3.3V D E F G H I J K L R135 2.7K R104 2.7K R105 2.7K R121 2.7K R122 2.7K R134 2.7K R132 2.7K R130 2.7K TP74 C113 C143 4V10 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3.3V SPMWE UNIT TEST...
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SCHEMATIC DIAGRAM-4 :POSITIVE VOLTAGE LINE 2.6V 3.3V 4V10 IC72 M51V4400D7FS 4M DRAM DTC114YETL POWER SUPPLY CONTROL 4.2V 3.3V AN8814SB-E1 FOCUS/TRACKING COIL, 2SB1295-6-TB SPINDLE/ TRAVERSE POWER SUPPLY MOTOR DRIVE TP103 TP100 TP101...
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SCHEMATIC DIAGRAM-5 MD SERVO CIRCUIT :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE C110 3.3V 4V10 2.6V 2.6V 3.3V 3.3V A W H V T U P RN5RZ26BA-TR REGULATOR 1000P 0.012 6.8K 220P 0.047 1.3V ADIP MONI2 1.3V PLAY PLAY...
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SCHEMATIC DIAGRAM-6 :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE 3.3V 2SB1121ST-TD REGULATOR 3.3V A D C E U V T 4.3V AK4518VF-E2 AD/DA CONVERTER 4.1V 0.8V DGND SDTO 3.3V 1.7V SCLK (1.7V) 1.7V SDTI LRCK 3.3V R201 4.7K 3.3V...
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SCHEMATIC DIAGRAM-8 :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE N M L K J I H G F E D C B 4.9V -27.6V -23.3V -27.6V -28.3V -27.6V -28.2V -28.5V -25.9V -32V -28.5V -19.3V 7.2ms. -32V -28.5V -17.7V 7.2ms. -27.7V -12.9V -27.7V -29.1V -30.6V...
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SCHEMATIC DIAGRAM-9 :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE MAIN CIRCUIT :NEGATIVE VOLTAGE LINE :MD RECORDING SIGNAL LINE DIGITAL OPTICAL D715 1SS254TA JK703 Q454 4.9V IC401 D716 Q454,455 1SS254TA TC74HCT7007A DTA143ESATP INTERFACE POWER SUPPLY JK704 Q455 R411 2.5V 4.5V 1.7V 4.9V R410 3.1V...
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SCHEMATIC DIAGRAM-10 :POSITIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE L601 PLAY PLAY PLAY 4.8V 4.8V 4.8V 0.2 s. 2V/DIV. 0.2 s. 2V/DIV. 0.36 PLAY/REC 4.8V 0.34 2.2V (1.5V) (2.5V) 1.7V 2.3V 2.4V 2.5V 2.5V 2.5V 2.5V AGND DECIMATION FILTER...
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SCHEMATIC DIAGRAM-11 MAIN CIRCUIT :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE C711 R711 R715 C715 C719 R725 25V47 8.2K 390P 25V47 R721 6.8V 6.8V PLAY IC711 6.2V BA4560FE2 BUFFER AMP 1kHz,0dB -8.1V C712 R712 R716 R718 R722 C720 R726 25V47...
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SCHEMATIC DIAGRAM-12 ANALOG PLAY :POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :MD PLAYBACK SIGNAL LINE :MD RECORDING SIGNAL LINE 6.2V 1kHz,0dB R727 R729 JK701 D711 D713 R731 R733 1SS254TA 1SS254TA Q703 Q705 Q703-706 2SD1450RSTTA 0.5V 0.5V ( -0.2V) (-0.2V) MUTING D712 D714 R732 R734...
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AC IN POWER SWITCH P.C.B. W201 T201 (POWER TRANSFORMER) CN251 CN201 DIGITAL ANALOG POWER TRANSFORMER P.C.B. CN751 ..CN301 SWITCH P.C.B. MD OPTICAL PICKUP 10 . 10 . MAIN P.C.B..CN402 (SPINDLE MOTOR) MD SERVO P.C.B.
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Power ON with no MD loaded. *1 *1 : Refer to Measurements and Adjustments Does player enter adjustment mode? *1 3.3V 3.3V Is CN4 power supply line OK? Set to read power adjustment mode. *1 Check power supply circuit on main unit. Is oscillation Is read power output? signal input for IC10...
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Is output voltage of IC1 pin 37 (TP35) approx. 1.3 V *1 Is voltage of IC1 pin 36 2.6 V? *1 Is voltage Is voltage on both sides of R5 Faulty IC9 of IC9 pin 3 at least 0.025 V? 2.6 V? Faulty IC1 3.3V...
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ROM/RAM Operation Can ROM disc be inserted correctly? Does CN4 H = 3.3V L = 0V D i s c t r a y pin 18 change from IC10 STOP/PLAY O P E N ? LOAD OPEN SW0 (S3) "H" to "L" when disc A LOAD PLAY/REC SW2 (S5) is inserted? B LOAD PLAY SW3 (S6)
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Is TOC read and disc data displayed? IC1 pin 11 IC1 pin 16 0.1V 50mV 2ms. 50mV/DIV. 2ms. 50mV/DIV. Is there output from IC1 pins 11 (TP55) and For measurements of IC1, refer to the 16 (TP57)? *1 item 8.5.2. of "Operation Checks and Component Replacement Procedures".
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IC3 pin 61 IC3 pin 64 3.2V 3.2V 0.5 s. 1V/DIV. F=16.9344MHz Is playback IC3 pin 62 IC3 pin 65 possible? 3.2V 3.2V Is playback sound T 0.36 s. T 11 s. Is output of IC3 pin 63 IC3 pins 61 ~ 65 OK 3.2V during playback? Press eject key...
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Traverse Operation Remains at outer track. Traverse operation Remains at inner track. Is IC10 pin 12 approx. 0 V? Faulty (shorted) traverse detection switch S8 Is IC10 pin 12 approx. 3.3 V? 1.3V Is output of IC3 pin 20 OK? Faulty traverse detection switch S8 Faulty IC3...
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Front panel controls 6 7 8 9 10 TRACK MARK/ JOG/PUSH SET DISP/CHARA SEARCH EDIT ENTER CHARA SKIP EJECT PUSH OPEN REC LEVEL LEVEL PHONES SYNCHRO TIMER REC MODE INPUT PLAY MODE STEREO MONO OPT 1 OPT 2 ANALOG PLAY Name Name Display mode select / Character select...