Sim & Usd Trouble - LG KC780 Service Manual

5. TROUBLE SHOOTING
5.11 SIM & uSD trouble
SIM Check Points
-Power is working
-Socket soldering
-Proper SIM is used
MMC_D(2)
MMC_D(3)
MMC_CMD
MMC_CLK
MMC_D(0)
MMC_D(1)
R414
MMC_DETECT
VIO_2V62
LGE Internal Use Only
SIM & MMC Connetor (ENSY0017901)
VMMC
TP5
TP4
47
R415
100K
C406 C407
1000p 1uF
VSIM_2V8
TP1
1
1
2
2
3
3
4 16
4 GND1
S401
5 15
5 GND2
6 14
6 GND3
7 13
7 GND4
8 12
8 GND5
11
GND6
9
SWB
10
SWA
C408
DNI
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TP2
SIM_RST
SIM_CLK
C401
C402 C403 C404
DNI
1u 27p DNI
TP3
Only for training and service purposes
SIM_IO