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Only for training and service purposes
4. TROUBLE SHOOTING
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
4. TROUBLE SHOOTING
`^VXZ]
4.13 SIM Card Interface Trouble
TEST POINT
CIRCUIT
Figure 4.13
PIN 6
PIN 4
J201
C227
TP1
TP1_PIN 1
PIN 3
C227
ZD202
DNI
ZD201
DNI
22p
C241
22p
C230
0.1u
C227
2V85_VSIM
2V85_VSIM
4.7K
R216
22p
C229
ZD203
DNI
J201
9
8
10
7
6
3
5
2
4
1
C1
C5
C2
C6
C3
C7
GND1
GND4
GND2
GND3
DNI
R232
SIM_RST
SIM_DATA
SIM_CLK
ZD201, ZD202, ZD203 is DNI deafultly
SIM_CONNECTOR
TP1
C227