Tested and works as follows:
All pots and switches gone through w/ deoxit
All functions working however the right channel has less amplitude than the left. Guessing the capacitors need to be replaced.
Not looking for a new project at the moment so my loss is someone else's gain.
Please see photos for the condition details
Open to serious offers
If the ad is up the receiver is available. Please do not ask and provide contact details for coordinating pickup