DAEWOO DVF54S_34S
Instrukcja Serwisowa

B. Playback picture is not good.

Noise appears on the screen on the whole. YES

NO

Noise appears on the screen at the bottom

NO

Check flow A.

YES

Commect the pin 117 of IC601 to GND for a few of seconds.

Are SW-pulse and HA-SW applied to preamp circuit? YES

NO

Is sw pulse supplied from pin 9 of IC601?

NO

Check D. PG input and connector.

YES

Check pattern

Is Enve. waveform supplied to pin $ of PT01? YES

NO

Check connector, Head Amp and Head dust.

NO Changed Head.

Check video circuit.

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