Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!orca.dsd.es.com!javelin.es.com!blgardne From: blgardne@javelin.es.com (Blaine Gardner) Newsgroups: comp.sys.amiga.hardware Subject: Re: noisy power line making clock run fast? Keywords: A2000HD, clock Message-ID: <1990Dec11.151251.12992@javelin.es.com> Date: 11 Dec 90 15:12:51 GMT References: <1990Dec10.163233.8478@ux1.cso.uiuc.edu> Reply-To: blgardne%javelin@dsd.es.com Organization: Evans & Sutherland Computer Corporation Lines: 17 ragg0270@uxa.cso.uiuc.edu (Richard Alan Gerber) writes: >Thanks to all who replied about the fast system clock in my new A2000HD. >A few people responded that their A2000s had fast clocks also and that >the cause was attributed to noise in the power line, even though it >looked OK on a scope. The problem is inside the power supply itself. If you're comfortable dealing with the guts of power supplies, a .01 uF capacitor between TICK and GROUND should cure the problem. If you've never messed with high voltage stuff before, your dealer should be able to do it for you, it is a known problem with some systems. -- Blaine Gardner @ Evans & Sutherland 580 Arapeen Drive, SLC, Utah 84108 blgardne%javelin@dsd.es.com ...dsd.es.com!javelin!blgardne (I hope) {decwrl, utah-cs}!esunix!blgardne DoD #0046 My other motorcycle is a Quadracer. BIX: blaine_g