Daewoo DV-K580NZ-T service manual Noise appears on Screen on the whole

TROUBLESHOOTING FLOW CHART

B.

Playback picture

is not good.

Noise appears on the	NO
screen on the whole.

YES
	NO
Is SW-pulse applied to
video IC?

	YES
Is Enve. waveform		NO
supplied to pin 4
of P T501?

YES

Check video circuit.

Noise appears on the	NO
screen at the bottom
	YES

Is sw pulse supplied	NO
from pin 18 of IC501?
	YES

Check connector,	NO
and Head dust.

Check flow A.

Check the PG

Adjustment.

Check D.PG input and connector.

Check pattern

Change Drum Ass'y

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