Daewoo DLT - 42G1LTBD, Service Manual

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A. When “No signal” in RF, SCART1,SCART2,AV3
1) First check if other inputs are working
=>If other inputs are not working, replace MAIN PCB
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope)
-Main TP (RF): CC613 near IC601 (Top)
-Main TP(SCART1): LC019 near JP208 (Top)
-Main TP(SCART2): LC213 near JP207 (Top)
-Main TP(AV3): RC055 near P240
=> If all TP signal does not appear, replace MAIN PCB.
B. When “No Signal” in Y/C signal (S-Video)
1) First check if other inputs are working
=>If other inputs are not working, replace MAIN PCB
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope)
-Main TP(Y signal): RC053 near P240
-Main TP(C signal): RC050 near P240
=> If all TP signal does not appear, replace MAIN PCB.
CVBS signal (CC613, LC019, LC213, RC055)
Y signal (RC053)
Trouble Shooting