Samsung SCH-i830 Service Manual page 31

U302
PHONE_ACTIVE
R324
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VCC28
C327
1 5
NC
VCC
2
IN
1
3 4
OUT
GND
2
DPRAM_CS_N
7-5
Flow Chart of Troubleshooting
VCC28 VCC28
C328
R323
5
VCC
B
Y 4
A
U303
GND
3
nCS_DPRAM