Sim Card Interface Trouble - LG LG500G Service Manual

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4. TROUBLE SHOOTING

4.13 SIM Card Interface Trouble

TEST POINT
PIN 4
CIRCUIT
SIM_DATA
ZD300
These are added for CMCC ESD test
LGE Internal Use Only
2V88_VSIM
R335
4.7K
C5
GND1
C6
VPP
C7
IO
C12
GND5
GND2
C11
C302
GND4
GND3
22p
4. TROUBLE SHOOTING
PIN 1
PIN 3
J300
Figure 4.13
2V88_VSIM
J300
C1
VCC
C2
RST
C3
CLK
TP1
C9
ZD301
C10
C303
0.1u
TP1
- 96 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
PIN 6
TP1_C303
SIM_RST
SIM_CLK
ZD302
C304
C305
22p
DNI
Only for training and service purposes

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