LG RZ-15LA70 Service Manual - Page 18
No Raster on Component signal
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No Raster on Component signal Repeat [A] Process Pass Check the signal of L1200, L1202, L1203 Fail Pass Check the input/ output of IC1 Fail Check the input/output of IC800, IC851 Fail Pass Check the input/ output of IC901 Fail Pass Check input source cable and jack Check JA1200 or RCA CABLE Re-soldering or Change the defect part, Check X11 Re-soldering or Change the defect part Re-soldering or Change the defect part, Check X900
No Raster on Component signal
Check JA1200 or
RCA CABLE
Check the signal of
L1200, L1202, L1203
Repeat
[A] Process
Check the input/
output of IC1
Check the input/
output of IC901
Check input source cable and jack
Fail
Re-soldering or
Change the defect part,
Check X11
Fail
Re-soldering or
Change the defect part,
Check X900
Fail
Pass
Pass
Pass
Check the input/output
of IC800, IC851
Re-soldering or
Change the defect part
Fail
Pass