LG 22MT55V - Page 17

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