LG 32LK310 - TROUBLESHOOTING GUIDE; Initial Troubleshooting Process

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Only for training and service purposes
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TROUBLESHOOTING
No power
(LED indicator off)
Check 24V, 12V, 3.5V
of Power B/D
Check short of Main B/D
or Change Power B/D
Pass
Check Output of
IC1001, IC1003, IC1007
Check P400 Connector
Change LED Assembly
:
[A] PROCESS
Fail
Fail
Pass
Pass
Check LED Assembly
Change IC1002, IC1008, Q1003
Pass
Check short of IC1001,
IC1003, IC1007
Fail
Re-soldering or Change defect
part of IC1001, IC1003, IC1007
Fail
No Raster
[B]: Process
Check LED status
On Display Unit
Repeat A PROCESS
Pass
Fail
Check Output of IC802 Change IC802
Fail
Change Inverter Connector
Or Inverter
Fail
Pass
Fail
Pass
Change LVDS cable
Fail
Check LVDS Cable
Pass
Check Panel Link Cable
Or Module
Change Panel Link Cable
Or Module
Check Inverter Connector
Or Inverter
Pass