Path: utzoo!utgpu!watmath!att!pacbell!ames!pasteur!ucbvax!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!wuarchive!swbatl!texbell!merch!cpe!hal6000!trsvax!uhclem From: uhclem@trsvax.UUCP Newsgroups: comp.sys.tandy Subject: Re: Model II tech info / schematic Message-ID: <193300172@trsvax> Date: 7 Aug 89 16:23:00 GMT References: <1699@nesac2.att.com> Lines: 30 Nf-ID: #R:nesac2.att.com:1699:trsvax:193300172:000:1468 Nf-From: trsvax.UUCP!uhclem Aug 7 11:23:00 1989 <> B>Does anyone have a schematic diagram of a Model II that I can get a copy of? I have popped one for the power supplies and sweep board in the U.S mail today. It may not be much help as there are no values on the parts on the schematic. The Model II Technical Reference is the source, but it is out of print. For other parts of the machine, a 16B or 6000 service manual should suffice. B>I was given a Model II today with the comment 'The monitor doesn't work'. B>What I found on opening the cover was that the fuse in the power supply had B>been wrapped with foil and that the only things that work are AC operated B>(fan, disk motor, CRT heater). Probably you will need to replace the entire power supply. Several of the parts on that supply are not commonly available, and when a part in a switching power supply goes, it usually takes lots of its neighbors out too. Depending on how it died, the rest of the machine is probably ok. In any case, take the foil out and put a fuse in so we won't burn Atlanta again. The power supply can be ordered from Radio Shack National Parts. If you use a Mastercard or Visa, they will mail the stuff right to you (no messing with the stores who may try to sell you a remote-controlled car instead.) "There's nothing wrong with your computer than an expensive service call can't prolong." - Wizzo Computer Company.