Samsung SGH-P400 Service Manual page 17

SG H- P400 F low Chart of Troubleshooting
VCCD VCCD
R300 R301
47K 47K
R3081
DLC_DETECT
R302
SDS_TXD
R303
SDS_RXD
R3041
DEBUG_TXD
R305
DEBUG_RXD
DEBUG_DTR
DEBUG_CTS
DEBUG_RTS
DEBUG_DCD
R306
JIG_ON
DEBUG_DSR
DEBUG_RI
TA_VEXT
BP_VF
VCCD
R307
220K
K
1K
1K
K
1K
1K
5 4 5 4
1 3 1 3
2 2
ZD300 ZD301
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
ZD303 ZD304 ZD305 ZD306 ZD307
ZD302
3- 6
VBAT
CN300-1
DLC_DETECT
1
SDS_TXD
2
SDS_RXD
3
DEBUG_TXD
4
DEBUG_RXD
5
6
DEBUG_DTR
7
GND
8
DEBUG_CTS
9
DEBUG_RTS
10
GND
11
DEBUG_DCD
12
JIG_ON
13
VTEST
14
DEBUG_DSR
15
DEBUG_RI
16
VEXT
17
VEXT
18
GND
19
CF
20
BP_VF
21
VBAT
22
ZD308
C300
C301
100NF
220NF