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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TROUBLE SHOOTING GUIDE
1. Power-Up Boot Fail Trouble Shooting guide
2. No OSD Trouble Shooting guide
Check P401 Voltage Level
(13.2V, L403)
Check power connector and RL_ON
signal OK ?
Replace Power board
Y
N
Y
Check IC5002
RESET and UPDATE pin
Check switch SW501, SW502
Y
N
Check X5000 Clock
32.768KHz
Check X5000 application circuit or
Replace X5000
Y
N
Check IC5002 IIC
communication state
Check IIC line or replace IC5002
N
Check IR input state of IC5002
57pin
Check IR board
N
Y
Re-download PTC Micom
Y
Check LVDS Cable
Check LCD Module
Control board
Y
Replace Cable
N
Check P401 Voltage Level
(13.2V, L403)
Check power connector and
RL_ON(pin1) signal OK ?
Replace Power board
N
Y
Check Q405 output Voltage(12V)
Y
Check Q405 application circuit or
replace Q405
N
Summary of Contents for 43LX560H
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