File information: | |
File name: | 84ats.pdf [preview 84ats] |
Size: | 37 kB |
Extension: | |
Mfg: | LG |
Model: | 84ats 🔎 |
Original: | 84ats 🔎 |
Descr: | LG TV cf-20-21k52e (84apcb) 84ats.pdf |
Group: | Electronics > Consumer electronics > TV |
Uploaded: | 16-02-2022 |
User: | Anonymous |
Multipart: | No multipart |
Information about the files in archive: | ||
Decompress result: | OK | |
Extracted files: | 1 | |
File name 84ats.pdf TROUBLESHOOTING NO RASTER CHECK +B at D807 cathode Normal Abnormal Check Open Is the voltage at pin37 FUSE of AC line & 12 of IC501 8V? No OK Check /replace Yes Check the in/out Fuse,DB801,IC801 of IC841 Check pin40 Check the voltage No of C806 of IC501(H-out) 0V No Check &replace Yes 254~380V Check /replace IC501 Check u-COM DB801,R811 Check Q741 pin15 low? Check the voltage No collector waveform of pin4 Check &replace No Yes IC501 Check /replace Check T401 Q802 Check /replace & each pin voltage D806,IC803,R809 No Check &replace Yes IC501 Is the voltage at pin37 & 12 of IC501 8V? NO TELETEXT Check the voltage of IC701 pin19 OK 0V Check Check 5V Supply CVBS signal Line of IC701 at IC701 pin9 & P701 OK OK Check IC701& IICBus Line Not OK Check / Replace Q701, X701, & |
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