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DVD-VCR Player DVD755VR
DVD755VR /00
DVD755VR /02
DVD755VR /05
DVD755VR /14

SECTION 1 SUMMARY 1-1 2. SMPS P.C.BOARD 3-52
PRODUCT SAFETY SERVICING
3. KEY P.C.BOARD 3-52
GUIDELINES FOR VIDEO PRODUCTS 1-3
4. TIMER P.C.BOARD 3-52
SERVICING PRECAUTIONS 1-4
DVD PART
SERVICE INFORMATION FOR EEPROM IC SETTING 1-5
ELECTRICAL TROUBLESHOOTING
SPECIFICATIONS 1-6
GUIDE & WAVEFORMS 3-54
DIRECTIONS FOR USE 1-7
1. SYSTEM OPERATION FLOW 3-54
SECTION 2 CABINET & MAIN CHASSIS 2-1 2. TEST & DEBUG FLOW 3-55
1. EXPLODED VIEWS 2-2 DETAILS AND WAVEFORMS ON
1. CABINET AND MAIN FRAME SECTION 2-2 SYSTEM TEST AND DEBUGGING 3-61
2. PACKING ACCESSORY SECTION 2-3 1. SYSTEM 27MHZ CLOCK,
RESET, FLASH R/W SIGNAL 3-61
SECTION 3 ELECTRICAL 3-1 2. SDRAM CLOCK 3-61
OVERALL BLOCK DIAGRAM 3-2 3. TRAY OPEN/CLOSE SIGNAL 3-62
VCR PART 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 3-65
ELECTRICAL ADJUSTMENT PROCEDURES 3-3 5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION) 3-65
ELECTRICAL TROUBLESHOOTING GUIDE 3-4 6. LASER POWER CONTROL RELATED SIGNAL
1. POWER(SMPS) CIRCUIT 3-4 (NO DISC CONDITION) 3-66
2. SYSTEM/KEY CIRCUIT 3-7 7. DISC TYPE JUDGEMENT WAVEFORM 3-66
3. SERVO CIRCUIT 3-8 8. FOCUS ON WAVEFORM 3-68
4. Y/C CIRCUIT 3-11 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) 3-69
5. HI-FI CIRCUIT 3-15 10. TRACKING CONTROL RELATED SIGNAL
6. TUNER/IF CIRCUIT 3-18 (SYSTEM CHECKING) 3-70
BLOCK DIAGRAMS 3-20 11. RF WAVEFORM 3-71
1. POWER(SMPS) BLOCK DIAGRAM 3-20 12. MT1379 AUDIO OPTICAL AND COAXIAL
2. TU/IF, NICAM & A2 BLOCK DIAGRAM 3-22 OUTPUT (ASPDIF) 3-71
3. VPS BLOCK DIAGRAM 3-23 13. MT1379 VIDEO OUTPUT WAVEFORM 3-72
4. Y/C BLOCK DIAGRAM 3-24 14. AUDIO OUTPUT FROM AUDIO DAC 3-73
5. HI-FI BLOCK DIAGRAM 3-26 BLOCK DIAGRAMS 3-75
6. SYSTEM BLOCK DIAGRAM 3-28 1. OVERALL BLOCK DIAGRAM 3-75
CIRCUIT DIAGRAMS 3-30 2. SERVO BLOCK DIAGRAM 3-76
1. POWER(SMPS) CIRCUIT DIAGRAM 3-30 3. MPEG & MEMORY BLOCK DIAGRAM 3-77
2. TU/IF, NICAM & A2 CIRCUIT DIAGRAM 3-32 4. VIDEO & AUDIO BLOCK DIAGRAM 3-78
3. A/V CIRCUIT DIAGRAM 3-34 CIRCUIT DIAGRAMS 3-79
4. HI-FI CIRCUIT DIAGRAM 3-36 1. SYSTEM CIRCUIT DIAGRAM 3-79
5. SCART(JACK) CIRCUIT DIAGRAM 3-38 2. RF & DSP SERVO CIRCUIT DIAGRAM 3-81
6. SYSTEM CIRCUIT DIAGRAM 3-40 3. AUDIO CIRCUIT DIAGRAM 3-83
7. TIMER CIRCUIT DIAGRAM 3-42 4. AV/JACK CIRCUIT DIAGRAM 3-85