Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!elroy.jpl.nasa.gov!ames!ncar!csn!boulder!alumni.colorado.edu!wouk From: wouk@alumni.colorado.edu (Arthur Wouk) Newsgroups: comp.sys.3b1 Subject: Re: (*SIGH*) 3b1 monitor question. Message-ID: <1991May19.172958.6629@colorado.edu> Date: 19 May 91 17:29:58 GMT References: <1991May17.194725.29834@digibd.com> <1991May18.161722.21388@colnet.uucp> Sender: news@colorado.edu (The Daily Planet) Organization: University of Colorado, Boulder Lines: 16 Nntp-Posting-Host: alumni.colorado.edu In article <1991May18.161722.21388@colnet.uucp> res@colnet.uucp (Rob Stampfli) writes: >The most common problem with 3B1 monitors is a failure mode where the right >side of the screen becomes increasingly nonlinear. Once this starts, it >proceeds at an exponential rate until the monitor fails. The problem is >a bad capacitor in the flyback circuitry. If it is caught prior to the ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >actual failure of the monitor, this is all that has to be replaced. Once >the capacitor fails, it takes out many hard-to-replace parts, like the >flyback transformer, effectively rendering the monitor unrepairable at any >reasonable cost. is there only one capacitor in the flyback circuitry, or is there a particular one to replace? if so, what are the specs? -- arthur wouk internet: wouk@cs.colorado.edu