Hi - I have a Mark IV A, 1991, and I've been having problems with it. In the course of changing tubes around I noticed a 1/4" phone jack just under the loop select switch, on the underside of the chassis. I cannot find this jack on any manuals or schematics I have been able to find. Anyone know what it is for? Is it supposed to be there? I am wondering if it could have been added when I had some repair work done several years ago - for whatever reason I either never noticed it or forgot about it.
Actually I am going to ask a question about the problems I am having too, in a separate post.
Thanks!
Actually I am going to ask a question about the problems I am having too, in a separate post.
Thanks!