Help, Companion Input not working

[Axel]

Proud and happy owner of an OD'A(Upgraded and upto date firmware).
All of a sudden, the inut on the Companion is not working.
Have a Magnum Dynalab Tuner connected to the companion, and when i switch to that input, the Master turns Red on the front, and then the Companion switches off.
When i use the inputs on the Master, works very well.
Reconfigured, formatted the SD cards and redid the config, took out the cables and reinserted them, powered off and on, still the same.
Any thoughts? Ideas?

Hi @georgev
Sorry to hear you’re having problems.  I’ve never heard described the fault that you report, so the only advice I can give is to     
switch the amps on as usual then go into menu mode and if a fault code has been generated, report this to Devialet.
Good luck, and welcome to the forum!