No Vfd Operation - LG PT-43 Service Manual

7. NO VFD OPERATION

Check AV Board IC750 #5
Sound signal.
YES
Check IC750 #3 output
YES
Check IC001 #18, 21, 22
YES
Check IC001 #23, 25, 27
NO
Check IC701sound output
NO
Check around IC750
NO
Check Q008, 007
NO
Check Q011, Q012
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