LG RM-23LZ50C Service Manual page 18

No Raster on Component signal
Repeat
[A] Process
Pass
Check the signal of
Q310,Q315,Q316
Pass
Check the input/
output of IC1
Check the input/output
of IC500, IC600
Pass
Check the input/
output of IC901
Pass
Check input source cable and jack
Change
Q310,Q315,Q316
Fail
Re-soldering or
Change the defect part
Fail
Re-soldering or
Change the defect part
Fail
Re-soldering or
Change the defect part
Faill
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