Samsung i780 Service Manual page 71

Flow Chart of Troubleshooting
9-7. T-Flash Card Working
Insert
T-Flash
NG
CD300
Breakdown?
Pin 1,2 in
CD300
Short?
YES
pin5 in U512
HIGH?
YES
Check U512 or
Neighboring circuit
YES
NO
NO
NO
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Change CD300
Change CD300
Change U512
9-24