24
8 and 16-PORT SECURE KVM USER MANUAL
Section 5 - Troubleshooting
Check that computer video output is sent to the connected
video connector (if computer supports multiple displays).
Check that computer resolution matches connected display
capabilities.
Connect the display/s directly to the computer to confirm
that video output is available and that a good image is shown.
Problem:
Bad video image quality (some or all channels)
Solutions:
Check that all video cables are properly connected to
product, computer, and display.
Check that cables are original cables supplied by Emerson.
With everything connected, power-cycle the product to reset
the video. Make sure the Video Diagnostic LED is solid green.
Check that the displays that you are using support the
resolution and refresh-rate setting on computer.
Lower the video resolution of your computer.
Connect displays directly to computer showing bad video
image to see if problem persists.
DPP
Problem:
DPP is not working (two channels)
Solutions:
Check that computer USB and video cables are not crossed
i.e. computer #1 video is connected to channel #1 while USB
device is connected to channel #2.
Problem:
DPP is not working (all channels)
Solutions:
Check that the USB device is properly connected to product
console.
Check that the DPP status LED is steady green. If DPP status LED
is not illuminated at all the device is not recognized by the
product. If DPP status LED is flashing green device is rejected or
non-qualified for security reasons. To resolve please contact your
system administrator.
Problem:
DPP is not working (one channel only)
Solutions:
Check that device is working properly when connected
directly to computer.
Check that there is a USB cable connected between the
computer and the relevant DPP input port on product.
