Samsung SGH-P310 - Page 46

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Flow Chart of Troubleshooting and Circuit Diagrams
9-10
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C437
R430
3
4
_EN
2
_PPR
U406
8
BAT
GND
5
9
GND
6
IMIN
IREF
7
VIN
1
_CHG
R432
VBAT
C438
C439
R431
CHG_OFF
TA_VEXT
ICHRG
R433
VBAT
R434
R435
1
GND
3
VCC
5
Y
4
TR400
A
2
B
TA_VEXT
JIG_ON_IF
JIG_ON
3.8V
3
0
4
V
ZD402
1
2
3
4
5
6
7
8
5
2
4
C
R414
VCCD_1.8
1
3
4
C
R411
R417
R416
R410
VCCD_1.8
R412
VBAT
0
3
4
C
4
5
6
ZD401
1
2
3
C423
C419
C418
C424
9
2
4
C
USB_5V
1
0
4
V
NC
22
NC
23
24
NC
20
20
3
3
4
4
5
5
6
6
7
7
8
8
9
9
21
NC
13
13
14
14
15
15
16
16
17
17
18
18
19
19
2
2
IFC400
1
1
10
10
11
11
12
12
6
2
4
C
R404R403
R408
R413
TA_VEXT
EAR_SWITCH
JACK_INT
EAR_CHECK
AUXIOP
USB_D+
ROUT
LOUT
TV_OR_SDS
SDS_RXD
JIG_ON_IF
AUXION
USB_D-