LG PRADA KE850 - Microsd Trouble

5. Trouble shooting
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5.11 MicroSD trouble
Check Points
-Power control FET is working
-Socket soldering
-Card detect is working
VMMC
1u
C346
R332
100K
R334
100K
R327
100K
22p
C345
2
3
4
5
6
7
8
SWA SWB GND
GND
1
49225-0821S301
100K
R336
D
G
S
SI1305-E3
Q301
100K
R333
100K
R335
2V72_IO
TF_DAT1
TF_CMD
TF_DETECT
TF_PWR_EN
TF_DAT2
TF_DAT3
TF_CLK
TF_DAT0
TF-DETECT PIN
TF_DETECT SIGNAL