Mac Plus - Video only when analog board pushed

[mmarcott]

Hi,
Picked up a free Mac Plus during VCFMW (thanks @Ron's Computer Videos ). Issue is there's only video when I push on the analog board and flex it. See video attached. Where to start? I'm a newbie, but I want to get this thing fixed. Thank you!

Mike

 

[eric]

It's a very common problem with the 128/512/Plus models - cracked solder joints on the analog board. Take a look at the board with the paper off (careful dont touch anything if on main power, and even off as some early models don't have bleed resistors) - look at all the solder joints and see if you notice cracks. It's pretty easy to get a soldering iron and add new solder to all those connections and get video back. The cracks are usually on the flyback and/or the analog board connector to the logic board.

Hope that helps - enjoy your Plus - it was our first Mac and had the exact same problem.