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TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips| File information: | |
| File name: | 019ATS.pdf [preview 019ATS] |
| Size: | 11 kB |
| Extension: | |
| Mfg: | LG |
| Model: | 019ATS 🔎 |
| Original: | 019ATS 🔎 |
| Descr: | LG TV CF-21T30K 019ATS.pdf |
| Group: | Electronics > Consumer electronics > TV |
| Uploaded: | 05-09-2022 |
| User: | Anonymous |
| Multipart: | No multipart |
| Information about the files in archive: | ||
| Decompress result: | OK | |
| Extracted files: | 1 | |
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 | ||
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