5
TROUBLESHOOTING
1. POWER CIRCUIT
✓
CAUTION
You must use insulated trance during the first part test of POWER circuit.
Check IC601,IC701.
No power
POWER cord is ok?
Is 400~140V voltage
obtained at C805 +?
Output voltage of 2
nd
parts is normal?
Check
rectifier diode of 2
nd
parts ;
D821, D822, D823, D825,
D826, D827, D828.
Switching
pulse of IC801 pin#4 or
pin#5 is normal?
OK
Exchange POWER CORD
Check
G801,L801,L802,D801.
Exchange rectifier diode of
2
nd
parts ; D821, D822, D823,
D825, D826, D827, D828.
Check IC801.
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
3
.
Summary of Contents for DV6T811N-LT
Page 27: ...26 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono 2 2 AUDIO HI Fl Q901 collector...
Page 29: ...28 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM 120V ONLY 5...
Page 30: ...29 CIRCUIT DIAGRAM 2 PO W ER SUPPLY SCH EM ATIC DIA G RA M DV D CO M BO FREE 5...
Page 31: ...30 CIRCUIT DIAGRAM 3 VIDEO AUDIO SCHEMATIC DIAGRAM...
Page 32: ...CIRCUIT DIAGRAM 4 SERVO SYSCON SCHEMATIC DIAGRAM 31...
Page 33: ...CIRCUIT DIAGRAM 5 DIGITAL AUDIO SCHEMATIC DIAGRAM 32...
Page 34: ...CIRCUIT DIAGRAM 6 Hi Fi SW CIRCUIT DIAGRAM 33...
Page 35: ...CIRCUIT DIAGRAM 7 INPUT AUTPUT SCHEMATIC DIAGRAM 34...
Page 36: ...CIRCUIT DIAGRAM ATATI 35...
Page 37: ...CIRCUIT DIAGRAM 36...
Page 38: ...CIRCUIT DIAGRAM CPU 37...
Page 39: ...CIRCUIT DIAGRAM DECODER 38...
Page 40: ...39 PCB CIRCUIT BOARD 1 1 VCR MAIN 6...
Page 41: ...PCB CIRCUIT BOARD 1 2 POWER 40...
Page 42: ...PCB CIRCUIT BOARD 1 3 LOGIC 41...
Page 43: ...PCB CIRCUIT BOARD 2 1 DVD MAIN A 42...
