Trouble Shooting Guide - LG 27MK60TM Service Manual

First of all, Check whether there is SVC Bulletin in GCSC System for these model.
No Power
Check JP100
Voltage Level (19V)
Y
Check IC101 Output
Voltage Level : C128 (5VS)
Y
Check IC100 Output
Voltage Level (1.1V, 3.3V)
Y
Check X201 Clock
14.318MHz
Y
Replace IC201 Flash Memory
No Screen on
Module Back Light On?
Y
Check Panel Power 5V(JP229)
Check IC101 Output 5V
Y
Check Panel Clock
P101(#10,11,22,23)
Y
Check FFC Cable for Damage
or Open Conductors
Y
Replace T-Con Board or
Module

TROUBLE SHOOTING GUIDE

N
Check Power connector
OK ?
N
Replace IC101 &
Recheck
N
Replace IC100 &
Recheck
N
Replace X201
N
Check LED Driver FB
(P700 1,6)
N
Replace IC101 &
Recheck
Check IC203
N
Repair Main B/D
N
Replace Cable
- 22 -
Y
Replace Power Board
N
Check IC203
Replace Main Scaler IC
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