LG 019ATS free download

File name 019ATS.pdf

TROUBLE SHOOTING NO RASTER CHECK +B at D807 cathode Normal Abnormal Check Open Is the voltage at pin61,56 FUSE of AC line & 54 of IC01 3.3V? Yes OK Check /replace No Fuse,DB801 Is the voltage at pin3 Is the voltage at pin14 Check the voltage of IC02 5V? & 39 of IC01 8V? of C806 No 0V Yes No Yes Check the in/out 254~380V Check /replace Check / Replace Check the In/Out of IC844 DB801 IC01,IC02 of IC842 Check pin33 No Check the voltage of IC01(H-out) No No pin3 of IC803 Check &replace Check the voltage IC01 Yes at D805 or D815 Check IC01 cathode Check Q402 pin1 high? No collector waveform Check /replace No IC801,IC803,IC804 Check / Replace Check &replace Yes F812 Q402