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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
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ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
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4. TROUBLE SHOOTING
CIRCUIT
SIM 2
Figure 4.4.10 SIM2 Mobile SW & TX Module circuit
TP2
TP4
TP1
TP3
TP5
TP6
TP
7
TP8
CONTROL LOGIC
Figure 4.4.11 SIM2 TP4 ~ TP8 scope waveform
Low Band Tx
VLOGIC
Tx_EN
BS1
BS2
Tx_EN
Tx_Ramp
881.5MHz,25MHz
1842.5MHz,75MHz
TP1
TP2
TP7
TP6
TP5
TP4
TP
TP8
Содержание GX300
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