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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
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CHECKING FLOW
START
Is the connection of
TP1 with LCD connector ok ?
YES
NO
Reassemble LCD connector
NO
Check the Voltage Level of
TP5 is about Battery voltage ?
(SWIF signal is high Level)
NO
YES
YES
Check the Waveform of
EMI filter ?
Resoldering or Replace U400
NO
Resoldering EMI filter.
(TP2,TP3,TP4)
Does LCD work
properly ?
Replace LCD module
LCD working well !
YES
4. TROUBLE SHOOTING
Содержание LG-A155
Страница 1: ...Service Manual Model LG A155 Internal Use Only Service Manual LG A155 Date October 2010 Issue 1 0 ...
Страница 121: ... 122 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...