Table of Contents
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CHECKING FLOW
START
Is the connection of
CN303 with LCD connector ok ?
YES
Check the Voltage
Level of MLED1~%(TP01~05)are
about Battery voltage ? LCD BL Ctrl
(TP07)signal is high Level)
YES
Check the Waveform of EMI filter ?
YES
(FL301,FL303,TP301~TP304)
Does LCD work
properly ?
YES
LCD working well !
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Only for training and service purposes
NO
Reassemble LCD connector
NO
Resoldering or Replace U302
NO
Resoldering EMI filter.
(FL301,FL302,FL303)
NO
Replace LCD module
- 8 -
4. TROUBLE SHOOTING
4. TROUBLE SHOOTING
LGE Internal Use Only
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