Samsung SGH-S300 Service Manual page 32

1 2
A
B
VCCD VCC D
R305 R306
47K 47K
DLC_DETECT
SDS_TXD
R309
SDS_RXD
DEBUG_TX D
R307
DEBUG_RXD
C
DEBUG_DT R
DEBUG_CT S
DEBUG_RTS
DEBUG_DCD
JIG_O N
R303
DEBUG_DS R
DEBUG_RI
TA_VEX T
D
E
F
1 2
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3 4
R310 1K
1K
R308 1K
1K
1K
ZD30 0 ZD30 2 ZD30 9 ZD310
ZD311 ZD312 ZD313 ZD31 4 ZD31 9 ZD315
I/F CONNECTOR
34
SAMSUNG Proprietary-Contents may change without notice
5 6
VBA T
R399
BP_V F
ZD316 ZD317 ZD318
C302
100N F
ZD30 3
D300
Changed by Date Changed
2002.11.1 3
user12
5 6
6-15
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams
7 8
CN302-1
1
DLC_DETEC T
2
SDS_TXD
3
SDS_RXD
4
DEBUG_TX D
5
DEBUG_RXD
6
VCCD
7
DEBUG_DTR
8
GND
9
DEBUG_CT S
10
DEBUG_RTS
11
GND
12 DEBUG_DCD
13
JIG_ON
0 14
VTES T
15
DEBUG_DSR
16
DEBUG_RI
17
VEX T
18
VEX T
19
GND
20
CF
21
BP_VF
22
VBATT
23
GND
24
GND
Engineer
COMPANY NAME
SEOY H
Address
Drawn by
City
SEOY H
R&D CH K
TITLE :
DOC CTRL CH K
SGH-S300
MFG ENGR CH K
Time Changed QA CH K REV Drawing Numbe r
Shee t
6:02:03 pm
7 8
A
B
C
D
E
F
Size
A3
of
31 0