LG M1994A-PTJ Service Manual page 18

Check LED status
Check Panel Link
Cable or Module.
Connector or inverter.
Check the LVDS
Check Input source Cable
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Only for training and service purposes
2. No Raster : [B] Process
On Display Unit.
Pass
Pass
Check Inverter
Pass
Check Output
of R305
Pass
Output of IC301
Pass
and Jack.
Fail
Fail
Fail
Fail
Fail
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Repeat A RPOCESS.
Change Panel Link Cable
or Module
Change Inverter Connector
or Inveter
Chage R305
Change Module.
LGE Internal Use Only