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Now downloading free:LG FFH-376 trouble

LG FFH-376 trouble free download

Audio equipment,digital audio, home audio, professional audio systems service manuals and repair information

File information:
File name:FFH-376_trouble.pdf
[preview FFH-376 trouble]
Size:54 kB
Extension:pdf
Mfg:LG
Model:FFH-376 trouble 🔎
Original:FFH-376 trouble 🔎
Descr: LG Audio FFH-378AX FFH-378AX FFH-376_trouble.pdf
Group:Electronics > Consumer electronics > Audio
Uploaded:10-06-2022
User:Anonymous
Multipart:No multipart

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Extracted files:1
File name FFH-376_trouble.pdf

TROUBLESHOOTING Turn power on. NO Check power supply circuit. Is power on? (Check PN 807) YES NO Does initial read work? Check laser circuit. YES Check focus circuit. Check disc. NO Does it play? Check tracking servo circuit. YES NO Does it output audio? Check audio circuit. YES OK - 2-3 - Fails to initial read NO Disc motor turns. NO Does laser light? A YES YES B Does RF Does tracking Does signal Does TE2 signal NO NO NO NO waveform servo work? appear at appear at pin 53 Defective IC appear? Lower envelope TP801(TEO)? of IC801? 801, pick up TP 801(RF) of TP801(RF) and/or open waveform is flat. wire. 1.3V YES YES YES Detective pattern. Does signal appear at IC 803 Pin 26 and Pin 27 ? NO Defective IC 801 and/or IC 803 YES Defective pick-up and/or connector. Is rotation normal? NO Does GFS (IC802 pin 25) NO show as below? Defective IC 801. YES Is there no dropout of RF Scratch in disc NO signal? initial read area.

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