Daewoo DLT - 42G1LTBD, Service Manual

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Trouble Shooting
C signal (RC050)
Y signal (RC233)
C. When “No Signal” in Y/Pb/Pr signal (Component)
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 (COMP_Y): RC233 near JP211 (Top)
-Main TP (COMP_Pb): RC234 near JP211 (Top)
-Main TP (COMP1_Pr): RC235 near JP211 (Top)
=> If all TP signal does not appear, replace MAIN PCB.