SAMSUNG Proprietary-Contents may change without notice
9. Flow Chart of TroubleShooting
9-1
This Document can not be used without Samsung's authorization
9-1. Power On
z
PDA Part
N0
'Power On'
Voltage in U903
LDO9=3.0
BUCK3=1.8
VCC_COIN=3.0
RSO=3.0
Battery Change
Check U903 & Neighboring Circuit
No
Yes
No
At TA600
V>3.32
Yes
11,12 Pins in U902
V11 = V12
Yes
Check U902 & Neighboring Circuit
No
Check other Power Devices