Key Data Input - Samsung SGH-T619 Service Manual

Flow Chart of Troubleshooting

9-7. Key Data Input

Check Initial Operation
Yes
When any key input is No
given,
Check the Dome sheet & Key Pad
is there something on LCD
(display)?
Yes
When one of the keys is
No
pushed, Replace the PBA
KBIO signal is OK?
Yes
END
9-12
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