Samsung SGH E590 Service Manual - Page 51

Key Data Input

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Flow Chart of Troubleshooting 9-7. Key Data Input Check Initial Operation Yes When one of the keys is pushed, is it displayed on LCD? Yes When one of the keys is pushed, KBIO signal is OK? Yes END No Check the Dome sheet & Key Pad No Replace the Key PBA 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

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SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-14
9-7. Key Data Input
Check Initial Operation
Yes
When one of the keys is
pushed,
is it displayed on LCD?
Check the Dome sheet & Key Pad
No
Yes
When one of the keys is
pushed,
KBIO signal is OK?
Replace the Key PBA
No
Yes
END