Samsung SPH-A900 - Flow Chart of Troubleshooting

SAMSUNG Proprietary-Contents may change without notice
7. Flow Chart of TroubleShooting
7-1
This Document can not be used without Samsung's authorization
7-1 Logic Section
7-1-1 Power On
Insert Power
power on
properly?
U200
pin41=high?
C216 =
2.7
V?
C122
19.2MHz?
END
Check Phone power on section
Check IFC201 and it's
neighboring circuits
Check
C217,C218,C219,C220,C221 and
U200's neighboring circuits
Check TCK301,U101 and it's
neighboring circuits
YES
YES
YES
YES
NO
NO
NO
NO