SAMSUNG Proprietary-Contents may change without notice
SGH-P408 Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
3-
3
2. Initial
The pin #9 of U100 =
1.8V and
the pin #11 of U100
ㆃ
2.825V ?
Initialization Failure
Check the U100
(If it has some problem, it has to be
replaced.)
END
No
Yes
Is the pin #19 of
U100
"Low -> High"?
Yes
Check the U601
There is 32.768kHz
wave forms at the C614
and C616
Check the LCD Part
Yes
No
No
Yes
Yes
Yes
The Voltage is "High"
at the C110, C111,
C112
Check the Audio Part
No
Check the U100
(If it has some problem, it has to be
replaced.)
Check the U700
The pin #25 of U100 is
"High"
Check the U100
LCD display is O.K
No
No
Yes
Yes
Sound is O.K
No