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F. PB luminance NG
Is Y-FM signal from HEADAMP
fed to pin
of P101
1
YES
Is ON/OFF 5V supplied to pin and
pin of IC301 at 5volts?
34
YES
Is EE(L) supplied to anode of
D310 at 5volt?
YES
Is Y-FM signal from pin
P101 fed to pin
of IC301?
1
YES
Is the luminance signal from pin
of IC301 fed to pin
of IC301?
4
YES
Is the luminance signal from pin
fed to pin
of IC301 through Q302?
5
YES
Is the luminance signal from
fed to pin
of IC301?
16
YES
To OSD circuit
NO
NO
13
NO
NO
of
2
NO
1
NO
4
NO
5
33
Check HEADAMP circuit
Check ON/OFF 5V
Check EE(L)
Check C353
Change IC301
Check Q302 and R310
Change IC301
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