No Pip - LG PT-43 Service Manual

3. NO PIP

<AV1,2,3>
Waveform of AV Board
IC200 #27,29,31 ?
NO
YES
Waveform of AV Board
IC200 #13 ?
YES
Waveform of PIP Board
IC1201 #26 ?
YES
Waveform of PIP Board
IC1201 #15~#18 ?
(R,G,B, FB)
YES
Waveform of MAIN1
IC501 #45~#48 ?
( R,G,B FB )
Check JA202
YES
NO
Check AV Board
IC200, Q201
NO
NO
NO
<RF>
Waveform of MAIN1
Q027(E) ?
Check PIP Board
Q1206
Check around IC1201
Check PIP Board
Q1203,1204,1205
- 19 -
<SCART>
Waveform of PIP
Board IC1201 #28 ?
Check
YES Scart Jack
NO
JA204