Daewoo DSC-30W60N Service Manual page 23

Troubleshooting charts
Check the SELECT SGINAL switch on the rear panel is to R/G/B.
Signals R, G, and B are to pins 7, 8, and 9 of IC201.
Signals B-Y, Y and R-Y are to pins 3, 4, and 5 of IC201.
Check the input/output signal of IC207.
Pins 9, 10, 11 : High
Pin 13 : Y in
Pin 1 : B-Y in
Pin 3 : R-Y in
Check the input/output signal of IC208.
Pins 9, 10, 11 : High (Base of QC215 : Low)
Pin 14 : Y signal
Pin 4 : R-Y signal
R, G, B Input
OSD is on the screen.
YES
YES
YES
YES
YES
Pin 15 : B-Y signal
VIDEO
NO
To DTV Decoder module
NO
Select the switch to R/G/B.
NO
Check IC207.
NO
Check IC207.
NO
Check IC207.
NO
Check IC208.
Check if pin 52 of IC212 is Low.
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