Micro Sd Trouble - LG KP210 Service Manual

4.17 Micro SD Trouble

TEST POINT
CIRCUIT
T-FLASH
[Rev.C] Remove T-flash detect
R244
T_DATA2
T_DATA3
T_CMD
R256
T_Detect
TP2
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Only for training and service purposes
TP2 TP1
Figure 4.17
VBAT
TFLASH_EN
C219
1u
R245 R246
5.6K NA 5.6K
0
10
R251
470K
4. TROUBLE SHOOTING
2V85_TF
U202
BH28FB1WHFV
1 5
STBY NC
2 6
GND BGND
3 4
TP1
VIN VOUT
(2.8V 150mA)
C220
1u
R247
5.6K
J201
1 8
DAT2 DAT1
2 7
DAT3 DAT0
3 6
CMD VSS
4 5
VDD CLK
9 11
GND1 GND3
12
GND2 GND4
- 83 -
U202
J201
2V85_TF
R248
5.6K
T_DATA1
T_DATA0
T_CLK
C225
NA
LGE Internal Use Only