Daewoo DV-K11WZ-PB/A, Руководство по обслуживанию

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18
NO
YES
Check PHONE jack
and pattern
Is ON/OFF 5V supplied to pin
and pin of IC301 at 5volts?
NO
YES
Check ON/OFF 5V CIRCUIT
(IC801, Q802, Q803)
Is REC(H) supplied to anode of
DA01 at 4.2volt?
NO
YES
Check IC601 Pin
Is the video signal from pin
of IC301 fed to pin of IC301?
NO
YES
Check IC301
Is the luminance signal from pin
of IC301 fed to pin of IC301?
YES
Check C302
31
26
31
38
35
36
Is the luminace signal from pin
of IC301 fed to pin of IC301?
NO
Is QV SYNC (H) supplied to
anode of D301 at 0 volt?
Check QV SYNC Change IC301
NO
47
52
YES
YES
Check record EQ circuit
To HEADAMP IC
NO
NO
Is the video signal obtained from
pin of IC301?
44
54
Is the modulating luminance signal
from pin of IC301 fed to pin of ICA01? 52 15