Microsd Trouble - LG Prada KE850 Service Manual

5.11 MicroSD trouble

Check Points
-Power control FET is working
-Socket soldering
-Card detect is working
TF_DETECT
TF_DAT1
TF_DAT0
TF_CLK
TF_CMD
TF_DAT3
TF_DAT2
TF-DETECT PIN
TF_DETECT SIGNAL
2V72_IO
TF_PWR_EN
R327
100K
R332 R333 R334 R335
100K 100K 100K 100K
C345
22p
- 95 -
5. Trouble shooting
VMMC
S
SI1305-E3
G
Q301
D
R336
100K
S301 49225-0821
SWA SWB GND
8
7
6
5
4
3
2
1
GND
C346
1u