[Jukebox-list] Seeburg AY160 subtract switch

Hi all I have a AY160 that only stops scanning to play a selection. It never finds its home state. Looking at the troubleshooting guide I insured the play control subtract switch was adjusted properly. What have found is that the switch measures closed even though the contacts are not touching. Off the switch the black wire has continuity and goes to ground at the base of the fuse F655. The yellow wire has continuity and goes to TB655 connection 6. The yellow wire is shorted to ground or shows the switch as closed even though the switch is open. Any ideas on where to look next? Thanks Don