Troubleshooting
Many problems are caused by loose or incorrectly connected cables. You should therefore first make
sure that all cables have been properly connected. In addition you should also check any programming
that you have carried out.
Problem Possible cause Remedy
During booting the computer
indicates a "keyboard error"
• cable not correctly plugged in
• cable defective
• incorrect keyboard interface
initialized
• Timing problems between
keyboard and computer
• check cable connections
• replace keyboard cable
• re-initialize keyboard interface
• Switch off all unused modules
with our WinProgrammer
MC/WX keyboard does not
work, although the daisy-
chained keyboard works
No keyboard assignment stored in
the internal keyboard EEPROM
Create and download a keytable
into your keyboard using the
WinProgrammer
Keyboard beeps at every key
position, without displaying
any characters
A fault has occurred in the
transmission of the keytable, or
the contents of the EEPROM have
been modified incorrectly
Re-initialize keyboard interface
(and download keyboard
assignment table into the
keyboard)
A keyboard buffer overflow
occurs when transmitting long
strings (e.g. MSR data)
Output speed too high for module
data / key codes.
Enable the Slow output attribute
using the WinProgrammer.
Modules do not function, or
do not function correctly
Module is disabled. Enable AutoInput for the module
using the WinProgrammer
Module data for MSR/Keylock
is not visible in Notepad
USB devices might be configured
to send module data via the
hidden OPOS/JavaPOS USB
channel (due to security issues
this is the factory default for all
USB devices, like the MCI family).
• Temporarily activate "Test
Mode" to check module
function.via keystrokes.
• Permanently disable "OPOS
Settings" in your keytable with
our WinProgrammer
• Try our sample applications for
OPOS/JavaPOS/MWXUSB to.
Technical Support
• Please refer to your keyboard manual for additional information.
• Consult the Keyboard FAQ pages on the PrehKeyTec website.
• Also please check the keytable and the module settings of your keyboard.
If all the steps above did not help to solve your problem:
• Contact your local PrehKeyTec distributor in order to get technical assistance
• Contact the PrehKeyTec technical support:
• Visit the Support Area on the PrehKeyTec Website:
http://support.prehkeytec.com
PrehKeyTec GmbH Quickstart WinProgrammer - Apr 01 2011 Page 16/22
(20 pages)
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