Troubleshooting; Cannot Turn On When Pressing Power Key; Charging Error; Buzzer Seems Not Working - CipherLab 8400 Reference Manual

TROUBLESHOOTING

CANNOT TURN ON WHEN PRESSING POWER KEY

Make sure the battery pack is installed properly.
Re-charge the battery inside the mobile computer and monitor the charging status.
(See 3.5 Power.)
If the battery is faulty, replace it with a fresh and fully charged battery then.

CHARGING ERROR

If using the USB cable for direct charging, make sure a suitable charging current is
selected. (See
If joining the power adaptor to the USB or RS-232 cable, make sure it is well
connected between the power jack and an outlet.
If using a cradle or charger, make sure the power cord is well connected the
cradle/charger and an outlet.
Check if the battery contacts of the battery itself and the battery compartment are
clean.
Try to re-charge the battery and monitor the charging status.
Warning! Only use batteries or charging device manufactured by CipherLab. The use
of wrong battery or charging device could result in damage to human body
or the product itself, and will void your warranty.

BUZZER SEEMS NOT WORKING

Perform the buzzer test. (See
If the problem persists, reload the battery pack and perform the test again.

LED INDICATORS SEEM NOT WORKING

Perform the LCD & LED test. (See
If the problem persists, reload the battery pack and perform the test again.

LCD SEEMS NOT WORKING

Perform the LCD & LED test. (See
If the problem persists, reload the battery pack and perform the test again.
3.2.9 USB Charge Current.)
3.3.2
3.3.3 LCD &
3.3.3 LCD &
Buzzer.)
LED.)
LED.)
Appendix II
95