Aucbvax.2762 fa.unix-wizards utzoo!decvax!ucbvax!unix-wizards Thu Aug 20 01:11:52 1981 11/45 MFPI in User hardware mod >From JNC@MIT-XX Thu Aug 20 01:04:10 1981 I am looking for someone who knows how to do this. I think I have figured out what to do, but I want to check and make sure. It looks to me (on print SSRB, lower right corner) like what you do is remove the input on E22-6 (SSRB ENABL IF NOT U/U) and tie that input to +3. Can anybody confirm this? For what it's worth, it looks like that circuit only disables MFPI, not MTPI (they AND in IRCA IR07). Noel -------