SGH-X200 Flow Chart of Troubleshooting
2-3
2-1-2. Initial
Initial Failure
check the pin
RSTB of U201 is
LOW?
Check U201
No
Yes
Yes
END
Yes
Check the Initial Operation
Yes
Check
R177,R178,R131,C127
No
check the pin CKI
of U201 is 13Mhz?
Check the clock signal
at pin #3 of OSC100
Freq=26Mhz?
No
check
OSC100
1
Check the pin #9 of U102
is HIGH and pin #11,
#13 is 2.9V?
No
Check u107
Yes
2
3
4
Содержание SGH SGH X200
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