TU 717 Tuner right channel went out.

[sannyTU717]

Had unit serviced about 4 years ago. Cause? How to diagnose? Easy fix?

 

[Catmanboo]

You need to be much more specific re: symptoms, defining "went out". Did everything go dead as in no lights, or sudden no reception? What was allegedly done during the "servicing" years ago? To many, servicing may be confined to interior cleaning to remove decades of dust, dead bugs, cat/dog/ guinea pig hair, mouse nests/poop, etc & if you were lucky, a good squirting of contact cleaner to the pots & switches. The cure for yours could be as easy as a blown fuse, cleaning controls again to a comprehensive bench session to find where the audio or RF signals stop. In a word, help us help you by getting more descriptive.
Lots to learn on this site, so poke around & see how vast AK actually is.

 

[Catmanboo]

Minor malfunction there. Click on text to read whole thing.

 

[Punker X]

Pretty common for the Mode select switches to cause this problem. FM stereo and mono switch. I would start there with some DeOxit.

 

[sannyTU717]

I'll try and clarify with more details. At first, I thought the right channel was completely out, but it's not, but it is far lower volume than the left. I switched out put wires and got the same result just reversing the channels. Maybe pots need cleaning? Not sure what to do. I am not willing to start soldering. And here is what the repair technician wrote in 2021.