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4. TROUBLE SHOOTING
4.7 LCD Trouble
CHECKING FLOW
START
Is the connection of
CN103 with LCD connector ok ?
YES
Is the connection of
CN101 with CN203 connector ok ?
YES
Check the Voltage Level of
C242 is about Battery voltage ?
(SWIF signal is high Level)
YES
Check the Waveform of
EMI filter ?
YES
Check the Waveform of
Data pins on CN103 ?
YES
Does LCD work
properly ?
YES
LCD working well !
LGE Internal Use Only
4. TROUBLE SHOOTING
NO
Reassemble LCD connector
NO
Reassemble FPCB with Main connector
NO
Resoldering or Replace U203
NO
Resoldering EMI filter.
(FL204,FL205,FL206)
NO
Replace Main FPCB
NO
Replace LCD module
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