Troubleshooting
The LEDs on the mHub 4K central hub and HDBaseT-Lite receivers can be used to help troubleshoot a potential issue. Here is
what the LEDs represent.
On the Central Hub:
HDMI inputs - If the unit detects a powered HDMI source device, a small green LED will light adjacent to the HDMI input port.
•
HDBaseT Outputs - If the unit is connected to the HDBaseT receiver, a small green LED next to the output socket(s) will light.
This indicates PoH is working to the display receiver.
•
An orange LED will light above the Cat cable socket when a data link is made between the HDBaseT transmitter and display
receiver.
•
If video is being sent over HDBaseT (usually once the connected display is switched on), a green flashing LED will also light
above the cat cable socket.
On the display receivers:
•
An orange LED will light above the Cat cable socket when a data link is made between the HDBaseT transmitter and display
receiver. If video is being sent over HDBaseT (usually once the connected display is switched on),
•
A green flashing LED will also light above the cat cable socket.
Should you encounter a problem when using an mHub 4Kmatrix, a soft power cycle or hard reset of the unit should resolve most
issues.
To perform a soft reset:
Push in the SD card and release. This will eject the SD card. Leave unit for 15-20 seconds then re-insert the SD card.
To perform a hard reset:
Power down every device connected to the matrix: all sources and all HDTVs. Now power down the Modular matrix. Leave off at
the mains for at least 10–15 minutes. Finally connect and power on the matrix again as if doing it for the very first time (see p.2).
ISSUE 1: No/intermittent picture on HDTV, blocky images or sparkles
Fault finding
Drop the output resolution of the source device down to 1080i or 720p. If the picture appears correctly on the HDTV, this
indicates a bandwidth issue with the Cat cable run. The available bandwidth is too low for 1080p transmission. Check that the
Cat cable is not bent, knotted, kinked or distorted in any way that would prevent these high frequency signals from traveling
throughout the intended length.
Ensure that the RJ45 connectors are fully inserted and click locked into place firmly and securely to ensure perfect connector
connection.
This can be caused by:
•
Electromagnetic interference affecting the Cat5e/6/7 cable due to proximity to power lines.
•
Imperfect RJ45 connector termination.
•
Use of wallplates or patch panels that cause too much bandwidth drop.
•
Poor quality Cat cabling or internal cable strand breakages caused by poor production.
•
Installation bending/strain/damage.
Possible fixes:
•
Relocate cable run away from possible interference from power line (minimum 60cm).
•
Re-terminate RJ45 connectors or replace with better quality connectors.
•
Remove wallplates and patch panels, replacing with direct cable runs and brush plates.
•
Upgrade to better quality Cat5e/6/7 cable.
ISSUE 2: IR control not working, or only working intermittently
Fault finding
•
Check the batteries in your remote control.
•
Check that only IR RX cables are connected to the TV receivers and TX to the central hub.
•
Double check and reposition the IR TX emitters so they are directly over the IR receiving windows on the source devices.
•
Connect each IR cable one at a time until the last IR cable connected introduces the fault. Once discovered contact HD
Connectivity for replacement IR cable (support@hdconnectivity.com)
If you do not resolve your issue after reading the above information on specific issues, email
much information about your set-up and the symptoms as possible.
.
* HDMI and Cat cabling not included
**3840x2160 @ 30/25/24Hz 4:4:4, 4096x2160 @ 30/25/24Hz 4:4:4, 4K @60/50Hz 4:2:0
support@hdconnectivity.com
with as
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