Daewoo DLP-2612, Руководство по обслуживанию

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CVBS signal (Positive polarity of CE220)
Y signal (CCV15)
C signal (CCV14)
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 or SUB PCB
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope)
- Main TP(Y signal): 7th pin of PW202(Top, Sub), Negative polarity of CE214(Top,
Sub) near IC201, RC10(Bottom, Sub) near IC201, CCV15(Top,
Main) near ICV10
-Main TP(C signal): 9th pin of PW202(Top, Sub), Positive polarity of CE218(Top,
Sub) near IC201, RC257(Bottom, Sub) near IC201, CCV14(Top,
Main) near ICV10
=> If all TP signal does not appear, replace SUB PCB