LG FB163U Service Manual page 49

D
YES
All
outputs are Ok
during playing
DISK ?
YES
TEST END
LGE Internal Use Only
NO
Audio signal data on
ES8390 is OK?
YES
Check the IC702.
NO
Picture
signal data on
ES8390 is OK?
3-36
NO
Check the SERIAL RESISTOR
between ES8390 and IC702.
For example composite video ,
Check the video mute TR
NO
(Q501), Output of Video buffer
IC (IC507) and ES8390
video signal data.
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