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2. No Screen on
Module Back Light On?
Y
Check Panel Power 5V (P602 #1)
Check IC403 Output 5V
Y
Check Panel input Clock
P602 (#10, #11 )
Y
Check FFC Cable for Damage or
Open Conductors
Y
Replace T-Con Board or Module
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Only for training and service purposes
N
Check WLED_ENABLE High?
Y
Check LED Driver NDRV
(R1052)
N
Replace IC403 &
Recheck
Check IC101
N
Repair Main B/D
N
Replace Cable
- 17 -
N
Check IC101
Replace Main SOC
N
Check IC1001 & Q1002
Replace LED Driver IC or FET
LGE Internal Use Only
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