LG 20LS1R-ZG - Sound and Signal Path Issues

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No Raster on AV Signal
(Component, CVBS, S-VHS)
No Raster on TV(RF) signal
Change Q113, Q114,
Q115, R194, R198, R184
Check the signal of
Q113, Q114, Q115
R194, R198, R184
Repeat
[A] Process
Check the output of
TU701
Check the
input/output of U301
Check the
input/output of U101
Check input source cable and jack
Fail
Fail
Fail
Fail
Re-soldering or
Change the defect part
Check X301
Fail
Re-soldering or
Change the defect part
Check 5V, 33V of TU701
Re-soldering or
Change the defect part
Pass
Pass
Pass
Pass