hello- has anyone ordered the service notes for any of the boss units with an expression input? if so- i need the maximum ring/tip voltage for the expression in jack. im assuming theyre uniform- but if you have the notes for the ps-3 specifically- even better. having contacted roland a couple times- ive been told this information is most likely in the service notes. my other option is to contact boss japan- but i cant read/speak/type japanese. however- if you do and want to shoot them an email for me- that would be greatly appreciated as well. thanks.