Samsung SGH-i320 User Manual Page 51

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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
10-2
This Document can not be used without Samsung's authorization
- Schematic for Power on
1.35V
TA314
R304
D
G
S
TR302
6
GND
4
ITH
2
PLLLPF
81
RUN
5
SW
7
S/MODE
3
VFB VIN
U307
R307
L303
TA312
R315
R306
TA313
C308
VBAT
R305
CORE12
C309
VCORE_EN
PWR_EN
0505-001464 check
3.0V
VBAT
C305
BAT33
C306
D3
G1
S2
R302
FDN338P
TR301
VBAT
C307
8
HOLE PWR
1
6
SENSE
SW
7
C303
U306
2
DC
5
DEN
FET
3
GND
4
3
1
2
5
4
U304
1
OUT
5
REF_BYP
4
U301
3
EN
GND
2
IN
TA311
VBAT
C312
VBAT
C304
R303
POWER_DET
PDA_PWR_KEEP AUTO_PWR
END_PWR
nPWR_SNS
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