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SGH-C110 Flow Chart of Troubleshooting
2-
11
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No
8. Key Data Input
'#pad'(See the picture
below) is 'high'(≒
2.8V)
Check the Initial Operation
END
Yes
When one of the key
is pushed, #pad is
'low'
Yes
Check U300
No
Replace the Dom Sheet or
Check if the V402,403,404 are
opened
No
Yes
Check the Keypad &
Dom Sheet
Replace or Adjust
the Keypad & Dom Sheet