Daewoo DV-K580NZ-T - Manual (Page 36)

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B. REC SIGNAL N.G.
Check EE mode.
NO NO
Check method A.
YES YES
Is REC-Y signal output
From pin 40 of IC 301?
Is signal input into
pin 37 of IC 301?
NO NO
Is REC-C signal input
into pin 12 of IC 401?
Is 5V supplied at
pin 28 of IC 301?
Check Power Circuit.
NO
Is REC-Y signal input
into pin 12 of IC 401?
Check Q402, Q403,
Q404, Q405.
YES
YES
NO
Is color signal output
from pin 15 of IC 301?
Check Q402, Q420.
YES
Change IC 301.
INPUT VIDEO HEAD.
YES
TROUBLESHOOTING FLOW CHART