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Now downloading free:LG FFH-1960 TROUBLE

LG FFH-1960 TROUBLE free download

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

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File name:FFH-1960_TROUBLE.pdf
[preview FFH-1960 TROUBLE]
Size:84 kB
Extension:pdf
Mfg:LG
Model:FFH-1960 TROUBLE 🔎
Original:FFH-1960 TROUBLE 🔎
Descr: LG Audio FFH-296AX FFH-296AX FFH-1960_TROUBLE.pdf
Group:Electronics > Consumer electronics > Audio
Uploaded:24-09-2022
User:Anonymous
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File name FFH-1960_TROUBLE.pdf

TROUBLESHOOTING Turn power on. Check power supply circuit. NO PN508 PIN 8, 6.2V Is power on? PN508 PIN 7, 5V IC503 PIN 2, 3.3V YES NO NO Does initial read work? Check the DISK turns Check the connector PN502, PN503, PN507 YES YES Check the Laser YES YES Check the focus circuit YES Check the TRAKING circuit NO Does it play? Check the tracking servo circuit. YES NO Does it output audio? Check the PN508 PIN1, 3 YES OK - 2-2 - Fails to initial read NO Check the Voltage change of PN 507 NO Defective connector Disc motor turns pin2(OPEN, CLOSE) PN507 YES YES Does RF waveform appear? Check the Data transmission from Defective connector NO NO IC501 Pin4 PN507 pin8 to CD DSP PN507 Defective 5V MICOM 0V YES Check the Data transmission from Defective connector PN507 pin6 to MICOM PN507 Defective NO 5V IC501 0V

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