Appendix B
Troubleshooting
NOTE: This document is CONFIDENTIAL and must be used exclusively for the operation of PAX programs. It may not be
duplicated, published, or disclosed without PAX prior written permission.
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APPENDIX B - Troubleshooting
Note
This section briefly describes how to troubleshoot some possible
common problems that may arise during the normal operation of the
POS Terminal POS terminal. Check the list below for a possible cause
of the problem you are experiencing before requesting service for this
unit. A few simple checks that you can perform yourself may solve your
specific problem and restore proper operation. If you are still unable to
solve this problem, contact your technical support help desk.
B.1 General Troubleshooting
Where is the Serial Number located?
There is a white label on the underside of the terminal; the serial number is under
the bar code on this label.
The serial number begins with S/N and is composed of, followed by 8 digits.
The terminal seems to have no power.
Check the connections of the AC electrical power adapter. The electrical plug
should be fully plugged into the electrical wall outlet, and the power adapter’s
barrel connector is properly inserted into the connector labeled PWR on the
terminal’s rear connections panel.
If the terminal is equipped with a back-up battery or is a wireless terminal,
press and hold the ON/OFF key for three seconds.
Try plugging a different device into the electrical wall outlet.
If possible, try a different power adapter.
If using a wireless terminal, allow the battery to charge 10 to 12 hours with the
terminal on and the AC adapter plugged into an electrical wall outlet.
The screen contrast might be too high or too low causing the terminal to
appear to be powered off.
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