I just got one of these Panasonic SX units working, but I can't turn the awful S-XBS off without the remote. I've looked through the service manual and the furthest I've got is to trigger the reset test point. Unfortunately reset does nothing to the S-XBS as it is on by default... If anyone has a spare remote for one of these things, let me know! They should look like this: Alternatively, if anyone knows how to spoof the remote, that will be even better! The service manual does not include the remote's schematics.
Sorry can't help Bub, i avoid later panasonics like this for this reason, what a dreadful idea having the bass just on the remote
I will never recommend this series (2 Belt SX) either, due to its many problems (extremely fragile clutches and gears, rubber on capstans (!)) , weak amp. But part of my curiosity wants a working SX so that I can compare it to its Sony and Aiwa competitors from the same late years (I think that even with the S-XBS off, it's not competitive). I can finally get one of these things working thanks to Marian's new SX belts. Truly an awful design having some settings only on remote... but I like the white Panasonic reels.