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No power
(LED indicator off)
Check 24V, 12V, 3.5V
of Power B/D.
Pass
Check Output of
IC1001, IC1005, IC1007.
Pass
Check LED Assy.
Pass
Check P307 Connector
No Raster
Pass
Check LED status
On Display Unit.
Pass
Check Panel Link Cable
or Module.
Pass
Check Inverter Connector
or Inverter.
Pass
Check Output of IC802.
Pass
Check LVDS Cable.
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TROUBLESHOOTING
: [A] PROCESS
Fail
Fail
Change IC1002, IC1008, Q1003
Fail
[B]: Process
Fail
Fail
Change Inverter Connector
Fail
Fail
Fail
Check short of Main B/D
or Change Power B/D.
Fail
Check short of IC1001,
IC1005, IC1007.
Pass
Change LED Assy.
Repeat A PROCESS.
Change Panel Link Cable
or Module.
or Inverter.
Change IC802.
Change LVDS cable.
- 12 -
Re-soldering or Change defect
part of IC1001, IC1005, IC1007
LGE Internal Use Only
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