LG GX300 Service Manual page 75
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Also See for GX300:
- User manual (82 pages) ,
- Quick reference manual (11 pages) ,
- User manual (106 pages)
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4. TROUBLE SHOOTING
CIRCUIT
TP1
TP1
TP2
TP2
CONTROL LOGIC
EGSM Rx
LGE Internal Use Only
SIM 2
TP4
TP4
TP6 TP5
TP5
TP6
TP7
TP7
1842.5MHz,75MHz
881.5MHz,25MHz
Figure 4.3.10 SIM2 Mobile SW & FEM circuit
BS2
BS1
Tx_EN
VLOGIC
Figure 4.3.11 SIM2 TP4 ~ TP7 scope waveform
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4. TROUBLE SHOOTING
TP3
TP
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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