Daewoo DSC-30W60N Service Manual page 22

Check the SELECT SGINAL switch on the rear panel is to Y/Pb/Pr.
If the switch is selected to R/G/B, the color of screen is pale green.
Check the input/output signal of IC207.
Pins 9, 10, and 11 : Low
Pin 15 : Pb signal
Check the input/output signal of IC208.
Pins 9, 10, and 11 : High (Base of QC215 : Low)
Pin 14 : Y signal
Y, Pb, Pr Input
OSD is on the screen.
YES
Pin 14 : Y signal
Pin 4 : Pr signal
YES
Pin 15 : Pb signal Pin 4 : Pr signal
VIDEO
V2
END
YES
NO
NO
NO
21
Troubleshooting charts
NO
To DTV Decoder module
Select the switch to Y/Pb/Pr.
Check if Y/Pb/Pr signals are well
connected to input terminals.
Check if pin 18 of IC212 is Low.
Check IC207.
Check IC208