FLY DS400 Service Manual Trouble Shooting

DG12BT(FLY DS400)_Trouble Shooting
Prepared by: Zhong, Ren-Hui Approved by: Sun, Bang-Li
Proofread by: Wang, York
Released date: Jul. 11, 2008
Innovating Customer Value
1
No power on
2KEY NG 3LCD no display 4No ring or KEY TONE 5No vibration 6No charge 7No Voice 8SIM Card NG 9TF card inefficacy 10FM inefficacy
11No Bluetooth 12No service
Inventec Confidential
2
No power on
Innovating Customer Value
Check whether the
voltage of the battery
is higher than 3.5V
OK
Check whether the
battery connector pin
is OK?
OK
Check whether the
‘No’ key is locked?
OK
NG
NG
NG
Charge the battery or
change a new one
Adjust the connector PIN or
change a new battery connector
Reassemble the key-press
Inventec Confidential
END
3
KEY NG
Innovating Customer Value
Check whether the Dome and
the Key Pad is cleaned
?
OK
Check whether the keypad
is assembled OK?
OK
Check whether the KB connector
is assembled OK or is broken?
OK
NG
NG
NG
Clean Dome and Key Pad
Reassemble the K/B
Reassemble the KB connector
or change a new one
Inventec Confidential
End
4
LCD no display
Check whether the
LCD FPC is jointed OK?
OK
Innovating Customer Value
NG
Reassemble the LCD FPC
NG
Inventec Confidential
Check whether the LCD is OK?
OK
END
Change for another LCD
5
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