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E.REC Luminance NG
Is the video signal from pin
fed to pin
of IC301?
12
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 0volt?
YES
Is the video signal from pin
of IC301 fed to pin
of IC301?
4
YES
Is the luminance signal from pin
of IC301 fed to pin
of IC301?
5
YES
Is the luminace signal from pin
of IC301 fed to pin
of IC301?
2
YES
Is the modulating luminance signal
from pin
of IC301 fed to pin
2
YES
To HEADAMP circuit
NO
of IC151
14
NO
13
NO
NO
12
NO
4
NO
5
NO
of P101?
5
32
Check C158 and pattern
Check ON/OFF 5V
Check EE(L)
Is Q302 and R310 correct?
YES
Change damaged
Change IC301
Check C302
Is TRICK (H) supplied to
anode of D309 at zero volt?
YES
Change IC301
Check TRICK (H)
Check record EQ circuit
NO
components
NO
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