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7-7. Key Data Input
Check Initial Operation
When one of the keys is
pushed,
Isn't it displayed on LCD?
When one of the keys is
pushed,
KEY_ROW(0,4),
KEY_COL(0,4)
signal is OK?
Yes
Yes
Yes
END
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No
Check the Dome sheet & Key Pad
No
Resolder ZD701,702,703
& Replace the PBA
7-15
Flow Chart of Troubleshooting
- Quick Links:
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