Samsung SGH-P400 Service Manual page 14

2. Initial
Initialization Failure
The pin #9 of U100 =
the pin #11 of U100
Is the pin #19 of
"Low -> High"?
There is 32.768kHz
wave forms at the C614
The pin #25 of U100 is
The Voltage is "High"
at the C110, C111,
LCD display is O.K
Yes
1.8V and
=
2.825V ?
Yes
U100
Yes
and C616
Yes
"High"
Yes
C112
Yes
Yes
Sound is O.K
Yes
END
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SGH-P400 Flow Chart of Troubleshooting
No
(If it has some problem, it has to be
No
(If it has some problem, it has to be
No
Check the U601
No
Check the U700
No
Check the U100
No
Check the LCD Part
No
Check the Audio Part
3-3
Check the U100
replaced.)
Check the U100
replaced.)