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2-1-2. Initial
Initial Failure
The pin #G11 of U101 =
1.8V and
the pin #J12 of U101 =
2.8V ?
Is the pin #K9 of U101
"Low → High" ?
There is 32.768kHz wave
forms at the C216 and
Is the pin #A4 of U300
is "High"
The voltage is "High" at
the C313,C315,C316
LCD display is O.K
Sound is O.K
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Yes
Yes
Yes
C217
Yes
Yes
Yes
Yes
Yes
END
SGH-C120 Flow Chart of Troubleshooting
No
Check the
(if it has some problem, it is to be replaced.)
No
Check the
(if it has some problem, it is to be replaced.)
No
Check the
No
Check the
No
Check the
No
Check the LCD part
No
Check the Audio part
2-5
U300
U300
U200
②
③
U100
④
U300
①
①
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