5-8
Flow Chart of Troubleshooting and Circuit Diagrams
SIM_VCC
CHARGE
SIM_IO
SIM
INTERFACE
SIM
SIM_CLK
SIM
SIM_RST
PUMP
VCC
C2
SIMCLK C6
SIMGND
A2
SIMIO
C7
SIMSCN
A1
SIMSCP
B1
SIMVBAT
B2
RST
C1
IO
D1
CLK
D2
CPRES D3
D104
D102
TP401
VBAT
8
9
G
G
10
1
2
3
4
5
6
7
G
G
CN400
C-292123
D103
D105
C400
100NF
100NF
C403
4.7uF
C402
TP402
SIMIO
SIMCLK