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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
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4. TROUBLE SHOOTING
CHECKING FLOW
START
Is the connection of
CN102 with LCD connector ok ?
YES
NO
Reassemble LCD connector
NO
Check the Voltage Level of
TP1 is about Battery voltage ?
(SWIF signal is high Level)
NO
YES
YES
Check the Waveform of
EMI filter (TP6, TP7, TP8)?
Resoldering or Replace U301
NO
Resoldering EMI filter.
(FL301,FL302,FL303)
Does LCD work
properly ?
Replace LCD module
LCD working well !
YES
Is the connection of
CN301 with CN103 connector ok ?
YES
NO
Reassemble FPCB with Main connector
NO
YES
Check the Waveform of
Data pins on CN102 (
TP3, TP4, TP5)?
Replace Main FPCB
Содержание LG-A130
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