Sony SL2710 Betamax. Very Bad Playback Picture.

This one had a few things wrong with it. One was that someone screwdrivered it. I really hate dealing with other people fux-ups.
If you don't know what an adjustment does, don't touch it. If it is paint sealed at the factory, that is done for a reason, don't touch it. Hours wasted on this one because someone messed around inside and that just adds to the repair cost.