14
TROUBLESHOOTING
NO
Is Video signal input at IC501
pin#50?
Check POWER circuit.
No OSD appears.
Is 5V obtained at IC501 pin# 53,
98, 99?
Is Video signal output at IC501
pin#52?
NO
Replace IC501.
D. No OSD(On Screen Display) appears
YES
YES
NO
Check IC 501.
Check IC 501.
NO
Check PCB Pattern
Check FFC CABLE & DVD
Module
DVD Composite signal doesn t
appear
Is signal output at PD01
pin# 5?
Is signal at IC301 pin#56?
NO
E. No DVD Video
YES
YES
Remark previous 3-A
Is signal at IC301 pin#61?
Check IC301
NO
Check RF output.
YES
YES
Check Line output
Summary of Contents for HV-DX300A
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 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 ...