5
TROUBLESHOOTING
1. POWER CIRCUIT
✓
CAUTION
You must use insulated transformer during the first part test of POWER circuit.
Check IC501, IC701
No power
POWER cord is ok?
Is 400V~200V voltage
obtained at C804 +?
Output voltage of 2
nd
parts is normal?
Check
rectifier diode of 2
nd
parts ;
D821, D822, D823, D824,
D825, D826, D827
Switching
pulse of Q801 collector is
normal?
OK
Exchange POWER CORD
Check F801.
Exchange rectifier diode of 2
nd
parts ; D821, D822, D823, D824,
D825, D826, D827.
Check Q801.
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
Summary of Contents for HV-DX3E
Page 1: ...Service Manual Service Manual MODEL HV DX3E HV DX3EV HV DX3SP Oct 2004 SANYO Electic Co Ltd ...
Page 27: ...26 CIRCUIT DIAGRAM 1 POWER SUPPLY CIRCUIT DIAGRAM ...
Page 28: ...27 CIRCUIT DIAGRAM 2 SERVO SYSCON CIRCUIT DIAGRAM ...
Page 29: ...28 CIRCUIT DIAGRAM 3 VIDEO AUDIO CIRCUIT DIAGRAM ...
Page 30: ...29 4 HiFi SW INPUT CIRCUIT DIAGRAM CIRCUIT DIAGRAM ...
Page 31: ...30 CIRCUIT DIAGRAM 5 PIF CIRCUIT DIAGRAM ...
Page 32: ...31 CIRCUIT DIAGRAM 6 DVD CIRCUIT DIAGRAM ...
Page 33: ...32 CIRCUIT DIAGRAM ...
Page 34: ...33 CIRCUIT DIAGRAM ...
Page 35: ...34 CIRCUIT DIAGRAM ...
Page 36: ...35 CIRCUIT DIAGRAM ...
Page 37: ...36 PCB CIRCUIT BOARD 1 1 VCR MAIN ...
Page 38: ...37 PCB CIRCUIT BOARD 1 2 POWER ...
Page 39: ...38 PCB CIRCUIT BOARD 1 3 DVD MAIN ...
Page 44: ...43 INSTRUMENT DISASSEMBLY F MAIN CHASSIS DISASSEMBLY FIG 6 Remove 4 screws then remove MAIN ...