LG Prada KE850 Service Manual page 58

Table 10 Micro SD memory card detect truth table.
TF_DETECT
TF_DETECT
TF_DAT1
TF_DAT0
TF_CLK
TF_CMD
TF_DAT3
TF_DAT2
Figure 32 Micro SD socket circuit with power control
it is removed
High
2V72_IO
TF_PWR_EN
R327
100K
R332 R333 R334
100K 100K 100K
C345
22p
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3. TECHNICAL BRIEF
Micro SD card status
VMMC
S
SI1305-E3
G
Q301
D
R335 R336
100K 100K
S301 49225-0821
SWA SWB GND
8
7
6
5
4
3
2
1
GND
C346
1u
it is inserted
Low