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MX800 SERIES INSTALLATION GUIDE 23
CHAPTER 4
Troubleshooting
During normal, day-to-day operation of your MX800 Series terminal, it is possible
for minor malfunctions to occur. Following are some examples of possible
problems, and steps to resolve them.
VeriFone follows stringent quality control standards in the manufacture of
MX800 Series terminals. Each unit that leaves the factory has been rigorously
tested to ensure quality and reliable operation. However, should you encounter a
problem in operation, read this section for possible causes and solutions.
The troubleshooting guidelines provided in this section identify various problems
and suggest the appropriate corrective action(s). If you have problems operating
your MX800 Series terminal, please read through these troubleshooting
examples. If the problem persists, or if it is not described below, contact your local
VeriFone representative for assistance.
Display is Blank If the terminal display does not show correct or readable information, check all
cable connections. If the problem persists, contact your local VeriFone
representative for assistance.
Serial Port Does
Not Work
The following are the corrective steps to be taken if the serial port does not work.
1 Check whether the device connected to the serial port of the multiport cable
of the MX800 Series terminal has power and is functioning correctly. If
possible, perform a self-test on the device.
2 The cable connecting the optional device to the MX800 Series terminal’s
serial port may be defective. Try a different serial cable.
3 If the problem persists, contact your local VeriFone representative for
assistance.
CAUTION
Perform only the procedures specified in this guide. For all other services, contact
your local VeriFone distributor or service provider. Service conducted by parties
other than authorized VeriFone representatives may void the product warranty.
Each MX800 Series terminal is equipped with tamper-evident labels. Do not,
under any circumstances, attempt to disassemble the terminal.