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SGH-E620 Flow Chart of Troubleshooting
2-
16
2-7. Key Data Input
Check soldered status of
CN500 and connecting
status between connector
and PBA
Check the Initial Operation
END
Yes
When "#"pad pressed,
Pin 38 of
CN500=2.8V(high)?
Yes
Resolder
CN500
or
U200
No
Check
U200
No
Yes
Check the Keypad &
Dome Sheet
Replace or Adjust
the Keypad & Dome Sheet
1
2
1
1
2
Содержание SGH-E620
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