Sharp SGH-J200 - Manual (Page 47)

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Flow Chart of Troubleshooting
9-16
9-9. Key Data Input
END
Yes
Check the Dome sheet and LCD FPCB
No
No
When one of the Navi keys
is pushed,
dose it work well?
Yes
When one of the main keys
is pushed,
is it displayed on LCD?
Check the Dome sheet
Yes
Check Initial Operation