55
5. Check the analog video output signal.
5.1 Picture is not outputted normally. (Composite, Y/C)
OK
NG
OK
NG OK
NG
OK
OK
NG
NG
Is the E+6V voltage line of JV05 normal?
Is the +5VV voltage line of QV01 normal?
Are the video signals inputted to each pin
of QV01?
4pin=video, 6pin=S-Y, 2pin=S-C
Are the analog video signals outputted to
each pin of QV01?
13pin=video, 10pin=S-Y, 15pin=S-C
Refer to “1. POWER SUPPLY PCB”.
Check the output voltage of QV91.
+5VV
Check the QV91 (1pin) level.
1pin=H
Refer to “3.1 Check the panel
microprocessor”.
Replace QV91.
Refer to “3.4 Check the DIGITAL VEDEO
OUTPUT”.
Replace QV01.
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