LG FLATRON Service Manual - Page 27

No Raster on AVScart in, Video, S-Video Signal, No Rasteron TVRF Signal

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5. No Raster on DVI Signal Repeat [A, B] process. Pass Check the input/ output Fail Re-soldering or change the defect part, Check the X100 of R100. X100. Pass Check input source cable and jack. 6. No Raster on AV(Scart in Video, S-Video) Signal Pass 7. No Rasteron TV(RF) Signal Pass Repeat [A, B] process. Pass Check the input/output of L804, L1002,L1003, L1004. Pass Fail Check short of IC100, Q307. Fail Change L804, L1002, L1003, L1004. Pass Fail Check 5V of TU600. Re-Soldering or change the defect part. Check Output of Fail Re-soldering of Change defect part, Check the X100 IC1104, IC1105. X100. Pass Check input source cable and jack. - 27 -

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- 27 -
5. No Raster on DVI Signal
Repeat [A, B] process.
Pass
Check the input/ output
of R100.
Fail
Re-soldering or change the
defect part, Check the
X100.
Check input source cable
and jack.
Pass
6. No Raster on AV(Scart in
Video, S-Video) Signal
7. No Rasteron TV(RF) Signal
Check input source cable
and jack.
Repeat [A, B] process.
Fail
Check short of
IC100, Q307.
Fail
Fail
Fail
Pass
Check 5V of TU600.
Re-Soldering or change the
defect part.
Check
the input/output of
L804, L1002,L1003,
L1004.
Change L804, L1002,
L1003, L1004.
Check Output of
IC1104, IC1105.
Re-soldering of Change
defect part, Check the
X100.
Pass
Pass
Pass
Pass
Pass
X100
X100