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