Faults and
Troubleshooting
Mobile Computer
MC 92N0
ex
Type 17-A1A.-………… and Type B7-A2A.-…………
72/78
Technical data subject to change without notice..
Revision B / 03/2019
Cold boot
ATTENTION
Incorrect handling may cause damage to property!
Performing a hard reset with an SD card installed in the MC9200 may cause
damage or data corruption to the data on SD card or the SD card itself.
To perform a hard reset (if the device is completely non-responsive, skip steps 1 and 2):
1.
Press the red
Power
button.
2.
Tab
Safe Battery Swap
. The indicator LED bar lights red.
3.
Press the primary battery release on the MC92N0 to partially eject the battery from
the MC92N0.
4.
While the battery is partially released, simultaneously press and release the trigger
and the Power button.
5.
Push the battery to fully re-insert it in the MC92N0. One audible click can be heard as
the battery is fully inserted.
6.
The MC92N0 reboots.
7.
When the screen turns off, release the buttons
.
8.
The MC92N0 reboots.
7.2
USB connection does not work
Problem:
Active Sync or Microsoft Mobile Device Center connection is not working.
Root cause:
Combination of several things.
•
The Ex conversion also includes limiting the external circuits. This includes the USB
interface.
•
Problem occurs especially on Dell and HP computers. However, it can also affect other
PC's.
Note:
Due to the modification for Ex i, the USB interface is at the lower limit of the interface
specification.
When connecting to computers, the manufacturers use interfaces that are also in the lower
part of the specification may lead to connection problems.