SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting

9-18

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