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20LCD-H5, 20L-510LT (CHASSIS:LJ71A) - LG TV Service Manual (repair manual). Page 16

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- 16 -
3. No RASTER on DTV Signal
Repeat [A,B] process
Pass
Check the input/
output of R918.
Fail
Check the P901.
Pass
Re-soldering or change the defect part.
Check the X100
Check the input/
output of R127.
Pass
Check the input/
output of IC100
Pass
Check and Change the Digital board.
Fail
Fail
Re-soldering or Change the defect part.
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