0 troubleshooting – Hall Research UHBX-8X User Manual

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UHBX-8X

6.0 Troubleshooting

If you are experiencing problems getting the extender to work properly, please

use the following troubleshooting suggestions.

a. Make sure that all of the connections on both the sender and the receiver

are solid. Loose connections are the number one cause of issues.

b. Try resetting the system by unplugging the power supply connected to the

sender, waiting 5 seconds and plugging it back.

c. Check the state of the LED’s on the front of both the sender and the

receiver. Refer to the table in section 4 to interpret the status being

indicated.

d. If the cable length is longer than 100 meters (330 ft), then you must set the

HDBaseT mode to "Long Reach". If you are using UHBX-R-PD then you

should set the mode using the little slide switch on the receiver (below the

HDMI output connector) to L.R. (Long Reach). If you are using UH-

1BTX-R receiver which does not have a mode switch, then you have to set

the mode on the UHBX-8X using the GUI via the USB connection. If you

are using an HDBaseT Class B (lite) receiver such as the model UH-1BT-

R, then you cannot set the mode to Long Reach since the Class B devices

do not support this mode

e. In L.R. mode the unit does not support deep-color, nor 4Kx2K video. So

you have to make sure your source does not output video with deep color

or 4K (UHD) video.

f. Make sure the display is compatible with the video source by connecting

them directly.

g. Make sure that the UTP or STP cable meets the requirements. Never use

low-skew cable for digital video extension (low skew cables are suited for

analog video extension, but do not work well for digital video). Read

section 3.2.6 for UTP cable requirements.

h. The extender requires that the source DDC signals of its HDMI output

operate at100 KHz or less and support clock-stretching. The vast majority

of sources meet these requirements. But if you determine that a particular

source does not (by substituting a video pattern generator, or a different

source), an HDMI transceiver may be needed. Hall Research offers the

model EMX-HD-AUD that has a compatible output, can handle virtually

any HDMI input, and has proven its ability to resolve source

incompatibility issues.

i. If you are experiencing periodic video dropouts (where the screen goes

blank for a few seconds every once in a while), try the following steps:

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