Hello to all. I have  Roland S-50 sampler in nearly mint condition. Just one minor issue: periodic overload (overdrive) of output signal. I've tested power/filter board and it works fine. S-50 is equipped with multivoltage power supply and I've tried 117 and 220V wirings but always is the same: every 7-8th notes from S-50 are played distorted. The Visually sampler is in perfect condition - all seems to work fine, there are no sights of burnt components inside. This problem exists on all outputs: individual, phones, mix. I've seen few mentions of similar issues in the internet: http://www.vintagesynth.com/roland/s50.php and http://jimatwood.wordpress.com/2011/09/16/free-roland-s-50-sampler-found/.. Does anybody know how to cope with this problem? Thanks, Alex Mylnikov _______________________________________________ Sent by the sgroup mailing list sgroup(a)sgroup.ca For subscribe/unsubscribe: http://www.sgroup.ca/mailman/listinfo/sgroup See http://www.generalconcepts.com/sgroup/ for more information.

I have the same issue with my S-50. I have opened it up and checked all components, it looks good, but looks are deceiving. I cleaned up the phono jacks and sprayed with air and contact cleaner. No luck. Someone had mentioned that the components go bad, like the capacitors or transistors, and would need to be replaced. More work than I want to invest in the S-50. If you really want to get it working, there are some web sites where you can buy replacement circuit boards. Or just use it as an awesome MIDI controller. :) 2011/11/7 Александр Мыльников <phan2m(a)bigmir.net>et>: issue: components http://jimatwood.wordpress.com/2011/09/16/free-roland-s-50-sampler-found/..