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6-
2
SGH-V205 Flow Chart of Troubleshooting and Circuit Diagrams
2. Initial
The pin #13 of U100 = 1.8V and
the pin #15 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 #28 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 C114,
C116, C117
Check the Audio Part
No
Check the U100
(If it has s ome problem, it has to be replaced.)
Check the U700
The pin #22 of U100 is "High"
Check the U100
LCD dis play is O.K
No
No
Yes
Yes
Sound is O.K
No