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SGH-P408 Flow Chart of Troubleshooting
3-
6
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VEXT
GND
GND
DEBUG_TXD
SDS_RXD
BP_VF
DEBUG_DS
R
VTEST
DEBUG_RX
D
DEBUG_DT
R
CF
DLC_DETEC
T
GND
JIG_ON
DEBUG_RT
S
DEBUG_CT
S
VEXT
I/F CONNECTOR
SDS_TXD
DEBUG_DC
D
DEBUG_RI
VBAT
ZD305
ZD307
ZD304
47K
VCCD
ZD303
R304
R301
1K
14
R3021
K
ZD308
VBAT
C301
220NF
C300
100NF
12
13
11
4
5
R3031
K
17
ZD300
1
2
3
15
16
2
ZD306
CN300-1
1
R3061
K
1K
R305
18
20
21
22
19
VCCD
ZD302
47K
R300
1
2
3
4
5
10
6
ZD301
8
9
7
4
5
TA_VEXT
DLC_DETEC
T
3
SDS_RXD
JIG_ON
SDS_TX
D
DEBUG_RXD
DEBUG_TX
D
DEBUG_RI
BP_VF
DEBUG_CT
S
DEBUG_RT
S
DEBUG_DCD
DEBUG_DT
R
DEBUG_DS
R