Troubleshooting - Tripp Lite B006-VU4-1 Owner's Manual

13. Troubleshooting

Operation problems can be due to a variety of causes. The first step in solving them is to make sure all cables are
securely attached and seated completely in their sockets. In addition, updating the product's firmware may solve problems
that have been discovered and resolved since the prior version was released. If your product is not running the latest
firmware version, we strongly recommend that you upgrade. See Firmware Upgrade Utility, for additional details.
Symptom
Erratic behavior
USB devices not responding
Cannot switch ports by pressing [Scroll
Lock] twice.
Monitor does not display after KVM
cable set is hot plugged.
When switching ports, the monitor
does not display.
Possible Cause
Unit not receiving enough power.
Keyboard and/or mouse need to be
reset.
No connection to the computer.
KVM switch needs to be reset.
USB ports need to be reset.
Keyboard is incompatible with Scroll
Lock invocation.
Some graphics cards are incompatible
with cable set hot plugging.
Monitor is new or this is the first-time
installation.
The PC's EDID has not passed
through to the monitor when switching
ports.
21
Action
Use a DC 5V power adapter if you are
not already using one. If you are
already using a power adapter, check
that it matches the system
specifications, and that it is plugged in
and functioning properly.
Unplug the cable(s) from the console
port(s), then plug it/them back in.
Check the cable from the switch to the
computer to make sure it is properly
connected.
Power off all devices on the
installation; power off the KVM switch;
wait five seconds, then power up.
Unplug the device's USB cable from
the USB port on the switch's rear
panel, then plug it back in.
Use the USB Reset hotkey
combination, to reset the USB ports.
Switch to the Alternate Hotkey Setting
Mode invocation keys.
Power off all devices on the
installation; power off the switch;
confirm all KVM cables are properly
connected; power on the switch; power
on the computers.
Switch ports again and wait two or
more seconds for the PC's EDID to
pass to the monitor.
Use the [d] hotkey to invoke Video
Sync one more time or switch to
another PC to reconnect the switch.
See Hotkey Setting Mode Summary
Table.