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2. SGH-X200
Flow Chart of Troubleshooting
2-19
2-
1. Baseband
2-1-1. Power ON
check the current
consumption
>= 100mA
Download again
'Power ON' does not work
No
Yes
Yes
END
Yes
Check the Initial Operation
Yes
Charge the battery
No
Check the Voltage
of the Battery
>= 3.3V
check keypad
No
Check the pin C152,
C153,C155,C168 of
U107 is
>=2.8V
Check
"Power On"
key?
No
check
U107
and
C153
Yes
1
Check the clock signal at
pin #4 of OSC100
Freq=26Mhz,
Vrms >=300mV
No
Check the clock generation
circuit OSC100
Yes
2
Содержание SGH SGH X200
Страница 10: ...SGH X200 Flow Chart of Troubleshooting 2 7 1 1 2 ...
Страница 12: ...SGH X200 Flow Chart of Troubleshooting 2 9 1 2 ...
Страница 15: ...SGH X200 Flow Chart of Troubleshooting 2 12 1 2 3 4 5 ...
Страница 17: ...SGH X200 Flow Chart of Troubleshooting 2 14 1 2 3 4 5 ...
Страница 19: ...SGH X200 Flow Chart of Troubleshooting 2 16 1 2 3 4 5 ...