Sim1 Card Interface Trouble - LG -A290 Service Manual

4.12 SIM1 Card Interface Trouble

MMC_DATA2
MMC_DATA3
MMC_CMD
MMC_CLK
MMC_DATA0
MMC_DATA1
LGE Internal Use Only
47K R221
VMMC
18
ST2
17
ST1
1
S4
2
T1
3
T2
4
T3
5
T4
6
T5
7
T6
8
T7
9
T8
10
S8
C270 C235
VA209 VA210 VA211 VA212 VA213 VA214
1u 1u
VSIM2
R246
DNI
Figure 4.13.1
VIO
T_FLASH_SIM_COMBO
MMC_DET
C265
1u
VA222 VA221
C261
VA223
DNI
Figure 4.13.1
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4. TROUBLE SHOOTING
TP1
S200
S200
VSIM2
TP1
C234
1u
SIM2_RST
SIM2_CLK
SIM2_DATA
Only for training and service purposes