LG KP260 - Micro SD Trouble

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4. TROUBLE SHOOTING
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Only for training and service purposes
4.18 Micro SD Trouble
TEST POINT
CIRCUIT
S300
Figure 4.18
U303
TP1
TP2
ENSY0014701
u-SD CARD
EUSY0290701
U303
BGND
6
GND
2
SEL
51
STBY
VIN
34
VOUT
BH28PB1WHFV
56KR331
2V85_TF
56KR333
VBAT
100K
R337
0R334
100KR328
2V8_VEXT
C350
1u
C356
1u
R332 56K
2V85_TF
56KR330
7
8
SWA SWB
S300 49225-0821
GND
GND
1
2
3
4
5
6
C351
4.7u
2V85_TF
DNI
C355
R329 56K
TF_DET
TF_DATA1
TF_DATA0
TF_CLK
TF_CMD
TF_DATA3
TF_DATA2
TFLASH_EN
TP2
TP1