Are you using optocouplers or are you taping IR emitters to IR receivers for the ballasts?

I ask because the "tape" method is prone to IR bleed that can have unexpected results. With the optocoupler, everything is isolated to what the PUC sends out from the BeoVision or Beosystem.

Indeed, I use IRs that are taped along with IR transmitter cover to avoid the "bleeding" effect.

After further investigation, I realized that the IR commands 3, 5 and 6+any digit normally dedicated to change the channels of the sources produce the TVs to change sources (source4, 3 and 2, respectively). In other words, they mimic the commands INPUT4, INPUT3 and INPUT2 to change the source of the Atlona Matrix.

The problem was first observed after a firmware update Atlona recommended me to do. I guess they changed something to the IR codes. Since then, they have not been very responsive to my requests, B&O support as well... When I think about the price I paid for the Atlona Matrix to get this result, I'm very upset...

The problem:

The B&O remote IR signal is getting to your matrix outside of the PUC.

Here's your solution:

Get the proper optocoupler's from B&O to fully eliminate any IR bleed, and you should also disable the IR receiver on the main matrix unit itself. That should solve your problem.

I've found that Atlona can be amazingly accommodating. Just be persistent with them and they can be very helpful. I believe they offer a 10-year warrantee and will even just fully replace units even if they aren't covered under the warrantee. However, your problem is that you need the optocouplers and need to disable the IR receiver on the main unit.

Just a bit of advise. Take it or leave it.

Atlona will go far beyond any help you could get from BeoCare. They do take their customer service VERY seriously. When an optocoupler was unavailable in inventory, they custom made one for me. When they find that support is becoming too frustrating, they'll just have you ship back the part and replace it with a new part to make it work -- all on their dime. Give them a chance and they'll take care of you.

Also, get the proper optocouplers! The tape method is prone to problems.

Page 4 of the matrix manual explains how to disable the front IR sensor of the matrix. If you don't have the manual, PM me and I'd be happy to email it to you. The front IR sensor can pick up stray IR signals and cause weird behavior.