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4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
90/140
4.13 SIM1 Card Interface Trouble
TEST POINT
CIRCUIT
4. TROUBLE SHOOTING
TP1
TP1
Figure 4.13.1
C503
4.7u
C502
1u
S500
8
S
4
S
7
S
4
G
3
S
3
G
6
S
2
G
2
S
1
G
S1
T8
T7
T6
T5
T4
T3
T2
T1
S5
ST1
ST2
COMMON
DETECT
GND
DAT2
CD_DAT3_2
CMD
VDD
CLK2
VSS_2
DAT0
DAT1
VCC_VOLTAGE
1
D
N
G
T
E
S
E
R_
C
C
V
2
D
N
G
P
P
V
3
D
N
G
1
KL
C
4
D
N
G
OI
1
D
E
V
R
E
S
E
R
2
D
E
V
R
E
S
E
R
VMMC
VSIM1
MMC_DATA1
MMC_DATA0
MMC_DATA3
MMC_CMD
MMC_CLK
MMC_DATA2
K
L
C
_
1
M
I
S
A
T
A
D
_
1
M
I
S
T
S
R
_
1
M
I
S
MMC_DET
TP1
4.12 SIM1 Card Interface Trouble
Figure 4.12.1