funkytoad Posted July 24, 2007 Report Share Posted July 24, 2007 Hey there, I recently got two Mac Pluses, One of them has this weird issue. There is a dashed vertical line down the center of the screen. I will post a picture later. Does anyone know what the problem is? Quote Link to post Share on other sites
Kallikak Posted July 24, 2007 Report Share Posted July 24, 2007 Sounds like a component failure on the analog board so the horizontal sweep doesn't work. Larry Pina discusses this in The Dead Mac Scrolls. May just need resoldering of a connection, and/or replacing a capacitor or inductor. You should be able to find the actuall part references with google - I'm at work so I can't look it up in the book. (A quick Google search finds this page: http://www.jagshouse.com/vertical.html - but I can't vouch for it without crosschecking with the Pina book) Quote Link to post Share on other sites
funkytoad Posted July 24, 2007 Author Report Share Posted July 24, 2007 I think your right. The lack of fan could cause the life of a Macintosh Plus to end early for some users. As the power supply would heat up, solder joints inside it would fracture causing a bright vertical power line to run down the center of the screen. Thats what Wikipedia says. Sounds right. Except mine is dashed. But same thing really I guess. Quote Link to post Share on other sites
tomlee59 Posted July 24, 2007 Report Share Posted July 24, 2007 Dashed line, eh? Hmmm...how far apart are the dashes? Specifically, are they spaced apart by a greater distance than the standard raster lines? (I posted a reply to your other post about the vertical line problem). In any case, I put together a doc that covers this and other problems (and their fixes). Our gracious host with the most has archived it somewhere on this site, but I have no idea how one accesses it. Perhaps he will be forthcoming with some instructions. Version 1 is over at Gamba's site; Version 2 has pics, and the material has been rearranged a bit for clarity. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.