Service/Technical bulletins for the 138XLR, which is the mobile version, can be found here:Do y'all know of any service bulletins for that model? I usually start there when restoring a virgin.
Thanks, I actually have a untouched 139xlr sitting on the shelf. Cabinet is in rough condition but no tweaks or mods. I am planning to work thru it in a few weeks which is why I asked of service bulletins. I am very familiar with unit_399's work on the 858 in that link.