I would get that unit fixed,I treasure mine and have the entire tower full so would preserve the set(DA-P20,DA-F20 tuner,DP-EC1 TT,DT-40S cassette,DA-A15 amp/with meters)driving a set of EPI100 and a set of Allison Acoustic 6 speakers,very fine sounding old equipment that is hard to find,well worth the expanse of repair
or just leave it on,don't shut it off