9
8x2 Video Matrix Switch
4. Troubleshooting
4.1 Problem Solving FAQ
1)
Fuzzy, blurry, or ghosting image at remote location
If you have a stable but somewhat blurry image (object or character edges
are not sharp), make sure that you have set the unit’s compensation
switches correctly. If you still have a fuzzy image, try reducing the refresh
rate and/or resolution of the PC. You should also be sure to use multi-
coaxial (double shielded) 75 ohm video extension cables for best results. A
ghosting image is usually an indication of impedance mismatch of the
cable
.
2)
Image exhibits steady or rolling horizontal color “hum”
bars
This is usually an indication of improper grounding either at the sending
end, the receiving end, or both. Verify that the AC line is properly wired
and that a protective ground (green) wire is established with NO potential
difference between both the sender and receiver locations.
3)
The PC does not recognize a Plug-and-Play monitor
If the PC’s Operating System is setup to detect a plug-and-play monitor
(usually in Display Properties: Advanced Settings), it may have trouble
finding a monitor if it is directly connected to the VSM-802B. If the PC
does not produce an image due to this, disable the plug-and-play monitor
detection in the PC’s operating system.
4)
Substituting power supplies
The splitter relies on the AC power adapter that is supplied with it. Do not
substitute any other power supplies.
