Troubleshooting – Muxlab VGA 1x4 Hub User Manual
Page 12

© MuxLab Inc. VGA 1x4 Distribution Hub Installation Guide
Page 12
4.
Troubleshooting
The following table describes some of the problem symptoms, the
probable causes and possible solutions. If the information below
does not solve the problem, the technical support contact
information can be found at the end of this section.
Picture
Power LED
Probable Cause
Possible Solution
No Image
OFF
No power
Check power
connections
No Image
ON
Wiring
Check continuity
Check correct wiring
Smearing
ON
Exceed cable length
Reduce cable length
Adjust contrast and
brightness
Ghosting
ON
Impedance mismatch
Check cabling
Try different VGA card
or display
Wrong colors
ON
Swapped pairs
Check wiring
Loss of detail
ON
Exceed cable length
Reduce cable length
Adjust contrast and
brightness
Image shakes
ON
Too much gain
Adjust Gain and
Equalization on Active
VGA Balun Receiver.