User's Manual

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ymvC_troubleshooting.fm document release 2.2 last updated 16/2/17
Appendix A. Troubleshooting
If problems persist, contact your vendor. Check that installation/maintenance operations are
performed by a trusted person. Log all maintenance operations, including the name of the
operator.
Warning message displayed
In the tampered state, the YOMOVA displays a warning message and it is not possible to
use the terminal to make a payment. When a warning message is displayed:
1. take the terminal out of service
2. contact the supplier immediately, who may then report the problem to Worldline
3. keep the terminal available for possible forensic investigation
Display not working
Check all components and connections (mains and adaptor) in the power supply.
Is the USB cable connected to the YOMOVA?
Is the USB cable connected to the ePOS equipment/PC, the USB adaptor or the
Merchant Unit?
Unplug the USB cable and re-insert it.
Try another USB socket on the ePOS equipment/PC: the socket the YOMOVA is
connected to may not be supplying power.
Try another wall socket: the socket the USB adaptor is connected to may not be supplying
power.
YOMOVA display working, but equipment does not respond to key presses
Press the reset button and wait for the equipment to reboot.
Disconnect and reconnect the power supply.
YOMOVA cannot make PSTN connection
Check that the PSTN cable is connected to the PSTN interface.
Check that the PSTN cable is connected to the PSTN outlet.
Check that the correct telephone numbers have been entered.
Check the PSTN line. If it is not working, contact the telecom company to check the status
of the line.
Make sure that no other devices attached to the same telecom media are interfering with
the communication of the terminal.
Make sure that the system that your terminal is trying to call is operational.