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4. TROUBLE SHOOTING
4.19 LED Module Trouble
CHECKING FLOW
START
Is the connection of
CN102 with LED module
connector ok ?
YES
Is the connection of
CN101 with CN203
connector ok ?
Is I/O Connector(CN102)
well-soldered ?
Check Input & output
signal at MUIC
A condition is good?
Replace LED Module
LED Module
Working well !
LGE Internal Use Only
NO
NO
YES
NO
YES
NO
Replace U100
YES
YES
111/140
4. TROUBLE SHOOTING
Reassemble FPCB
with LED connector
Reassemble FPCB with Main
Connector Or
Resolder CN101, CN203
Resolder the CN102
- 112 -
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Only for training and service purposes
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