LG GB210 - Micro SD Trouble

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4
.
17
Micro
SD
Trouble
TEST POINT
CIRCUIT
J302
TP1
TP2
4.17 Micro SD Trouble
u-SD CARD
R335
56K
R327
DNI
DNI C357 DNI C358
R333
56K
R337
56K
C356DNI
2V8_VEXT
0
470K
R332
R326
DNI
C353
C354DNI
DNI C359
3V3_TF
3V3_VUSB
ICVN0505X150FRVA305
R334
56K
DNI C355
56K
R336
CD_DAT3
CLK
CMD
DAT0
DAT1_2
DAT2
DETECT_A
DETECT_B
DUMMY1
DUMMY2
DUMMY3
GND
VDD
VSS
J302 AXA463062P
TF_DATA3
TF_CLK
TF_CMD
TF_DATA0
TF_DATA1
TF_DATA2
TF_DET
MM_USB LDO
EUSY0353801
3V3_VUSB
C422
1u
1u
C424
CE
3
GND
2
5
PGND
4
VDD VOUT
1
U403RP103K331D
R419
100K
VBAT
ONNOFF
TP2
TP1