LG RZ-37LZ30 Service Manual page 14

No Raster on AV signal
(Video, S-Video)
Repeat
A:Process
Pass
Check the input
of IC1201
Pass
Check the in/output
of IC1201
Pass
Check the
in/outputof IC401
Pass
Check input source cabel and jack
No Raster on TV(RF) signal
Check the out of
Fail
Check the C1238, C1240, C1243, C1236
Fail
Re-soldering or
Change the defect part
Fail
Re-soldering or
Change the defect part
Fail
- 14 -
TU801
Fail
Change the defect part
Check 5V, 33V of TU801
Re-soldering or
Change the defect part