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6-
2
SGH-S200 Flow Chart of Troubleshooting
2. Initial
The pin #13 of U100 = 1.8V and
the pin #15 of U100
ㆃ
2.825V ?
Initialization Failu re
Check the U 100
(I f it has some problem, it has to be repla ced.)
END
No
Yes
Is the pin #28 of U100
"Low -> High"?
Yes
Check the U601
There is 32.768kH z wave forms
at the C615 and C616
Check the LCD Part
Yes
No
No
Yes
Yes
Yes
The Voltage is "High" at the
C112, C113, C116
Check the Audio Par t
No
Check the U100
(If it has some pr oblem, it has to be r eplaced.)
Check the U700
The pin #22 of U100 is "High"
Check the U100
LCD display is O.K
No
No
Yes
Yes
Sound is O.K
No