Inventec FLY DS400 Operating instructions

DG12BT(FLY DS400)_Trouble Shooting
Prepared by: Zhong, Ren-Hui
Approved by: Sun, Bang-Li
Proofread by: Wang, York
Released date: Jul. 11, 2008

2
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TABLE OF CONTENTS
1、No power on
2、KEY NG
3、LCD no display
4、No ring or KEY TONE
5、No vibration
6、No charge
7、No Voice
8、SIM Card NG
9、TF card inefficacy
10、FM inefficacy
11、No Bluetooth
12、No service

3
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Check whether the
voltage of the battery
is higher than 3.5V
Charge the battery or
change a new one
NG
OK
NG
Check whether the
battery connector pin
is OK?
Adjust the connector PIN or
change a new battery connector
Check whether the
‘No’ key is locked? Reassemble the key-press
OK
NG
OK
No power on
END

4
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KEY NG
Check whether the Dome and
the Key Pad is cleaned?Clean Dome and Key Pad
NG
Reassemble the K/B
Check whether the keypad
is assembled OK? NG
Reassemble the KB connector
or change a new one
NG
End
Check whether the KB connector
is assembled OK or is broken?
OK
OK
OK

5
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OK
Check whether the
LCD FPC is jointed OK?
NG
LCD no display
Check whether the LCD is OK? Change for another LCD
NG
OK
Reassemble the LCD FPC
END

6
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No ring or KEY TONE
NG
NG
End
Check whether set
in the silent mode? Reset the mode
Check whether the SPK
is welded OK or is broken Re-weld or change a new SPK
OK
OK

7
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No vibration
OK
Check whether the
MOTOR is assembled
OK or is broken?
Reassemble or
Change a new MOTOR
NG
Check whether set in
no vibration mode? Reset the mode
NG
END
OK

8
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No charge
Check whether the I/O connector
Is jointed OK or is broken? Joint the I/O connector or change for another one
NG
Check whether the charger
output voltage is 5V? Change for another charger
NG
OK
OK
END

9
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No Voice
Check whether the
microphone is assembled
OK or is broken?
Reassemble the microphone
or change for another one
NG
Check whether the
receiver is soldered
OK or is broken?
Re-solder the receiver or
change for another one
NG
End
OK
OK

10
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Check if it is in the service Move to service zone
and try again
NG
OK
Check SIM socket is jointed OK
or the socket is broken? Joint the socket or
change for another one
NG
Check whether the SIM card
is assembled OK? Reassemble the SIM card
NG
OK
SIM Card NG
OK
End