LG PF-52A70 Service Manual page 20

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NO PIP
In case of PIP (AV)
Is there video signal at
pin 29 of IC201?
No
Check/Replace
IC201
Check I
C Bus
2
Is there video signal at
No
Check PP2,
PP2A
Abnormal
Check/Replace
ICP3, ICP2
Abnormal
Check PP3A, PP3
Yes
pin 26 of ICP3
Yes
Check pins 1, 2, 3
of ICP3
Normal
Check pins 8,9,10,14
of ICP6
Normal
Check pins 1, 4, 6, 8
of IC505.
Normal
Check/Replace
IC505.
In case of PIP (RF)
Is there CVBS signal at
pin 24 of ICP3?
Yes
Abnormal
Check/Replace
ICP7, ICP8.
- 20 -
No
Check
TUNER/IF parts
of PIP

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