[larsove]

I have a broken channel 3 on my mixer. It just suddenly stopped working, no sound out. I'm handy with a solder station, but I'm not good at troubleshooting audio equipment or reading schematics. 
But can anyone here point me in the right direction as of what components to swap out? I'm guessing a broken OP-amp.

Cheers,
LarsO

[helmetlampshade]

I have a broken channel 3 on my mixer. It just suddenly stopped working, no sound out. I'm handy with a solder station, but I'm not good at troubleshooting audio equipment or reading schematics. 
But can anyone here point me in the right direction as of what components to swap out? I'm guessing a broken OP-amp.

Cheers,
LarsO

Hi LarsO,
sorry for the late replay - in case you still have the broken channels, this is what I did (with help from the KOMA support).
I had one broken channel. This is what Christian from KOMA wrote:
"So, if a channel spontaneously fails, then it's almost always either U1, U2 or U3 which has failed. This is the SMD variant of the LM324."

You can replace the chip pretty easily and order them everywhere.

Hope this helps!