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Sim Card Interface Trouble - LG MG320 Service Manual
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Contents
Table of Contents
Troubleshooting
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4.9 SIM Card Interface Trouble
TEST POINT
CIRCUIT DIAGRAM
SIM CONNECTOR
2V85_VSIM
SIM_DATA
Figure 4-9
R201
J201
20K
4
1
GND
VCC
5
2
VPP
RST
6
3
I_O
CLK
8
7
GND2
GND1
C202
NA
- 81 -
4. TROUBLE SHOOTING
2V85_VSIM
C201
C203
C204
22p
1000p
220n
SIM_RST
(GPIO 23)
SIM_CLK
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