14
TROUBLESHOOTING
E. No sound in broadcasting (Stereo)
Is 5V obtained at IC101
pin#1, 11, 33?
Oscillation of IC101 pin#5,6?
YES
NO
NO
NO
YES
YES
Is SIF output from RF101
pin#18 to IC101 pin#2?
Is AUDIO output at IC101
pin#26, 27?
Check IC251 pin#2,3.
Check POWER circuit.
Exchange X101.
Check RF101.
Exchange IC101.
NO
NO
Is Video signal input at IC601
pin#50?
Check POWER circuit.
No OSD appears.
Is 5V obtained at IC601 pin#
53, 98, 99?
Is Video signal output at IC601
pin#52?
NO
Replace IC601.
D. No OSD(On Screen Display) appears
YES
YES
NO
Check IC 601.
Check IC 601.
Содержание DV-6T812N
Страница 25: ...24 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono 2 2 AUDIO HI Fl Q901 collector ...
Страница 27: ...26 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM DVD COMBO FREE ...
Страница 28: ...27 CIRCUIT DIAGRAM 2 VIDEO AUDIO SCHEMATIC DIAGRAM HI FI ...
Страница 29: ...28 CIRCUIT DIAGRAM 3 SERVO SYSCON SCHEMATIC DIAGRAM ...
Страница 30: ...29 4 DIGITAL AUDIO SCHEMATIC DIAGRAM CIRCUIT DIAGRAM ...
Страница 31: ...30 CIRCUIT DIAGRAM 5 HI FI SW CIRCUIT DIAGRAM ...
Страница 32: ...31 CIRCUIT DIAGRAM 6 INPUT OUTPUT SCHEMATIC DIAGRAM ...
Страница 33: ...32 PCB CIRCUIT BOARD 1 1 VCR MAIN ...
Страница 34: ...33 PCB CIRCUIT BOARD 1 2 POWER ...
Страница 35: ...34 PCB CIRCUIT BOARD 1 3 LOGIC ...
Страница 39: ...38 INSTRUMENT DISASSEMBLY FIG 6 F MAIN PCB DISASSEMBLY Remove 1 screws then remove MAIN PCB Remove 3 screws ...
Страница 40: ...39 INSTRUMENT DISASSEMBLY G MAIN CHASSIS DISASSEMBLY FIG 7 Remove 6 screws then remove MAIN CHASSIS ...
Страница 41: ...40 INSTRUMENT DISASSEMBLY H Explode view ...