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Mute - LG XA66 Service Manual

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ELECTRICAL TROUBLESHOOTING GUIDE

2. MUTE

Mute
YES
Does "High" appear
at Q704, Q705 "B"?
YES
Check "Low"
of Q704, Q705 "C"
YES
Mute
NO
Check U600 pin17
Check R622
Check IC603 pin69
NO
Replace Q704, Q705
3-3
NO
NO
NO
Replace R622
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