Key Data Input - Samsung SGH-T408 Service Manual

Dual band mobile cellular phone
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5-7 Key Data Input

Check Initial operation
one of the keys is pushed,
is it displayed on LCD
Flow Chart of Troubleshooting and Circuit Diagrams
Yes
When
Yes
Keypad is OK ?
Yes
END
No
Check the Dome sheet
No
Replace the PBA
5-12

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Sgh-t410

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