Thanks for the info, it helps!
Already tested with headphones. Same issue, so I guess it has something to do with the amplifier.
Will try to open it up and see if I can find the amplifier and then check for replacement components.
Have an old CT-610. Still works find, except that the volume of one of the speakers is very low.
Thinking of trying to repair it myself. Would help if I had the schematic and/or service manual.
Anyone know where I could get these?
thanks,
Andreas