I have had this Mac Plus for years with intent to repair it. When I acquired it, it would boot and work but the screen would get very blurry. Tapping the side of the computer would sometimes correct it for a few seconds. I'm good at soldering but never really worked on high voltage stuff, so I've been hesitant to mess with it. I put it in the attic for the past 5 years. I got it out today with intention to fix it. I figured by now surely the CRT and capacitors would have discharged. I decided to just reflow every solder connection on the analog board. Everything looks good, so I turned it on. Now I get nothing. No chime from the logic board and no video on the screen. If I turn the brightness all of the way up there is a faint vertical squiggly line that is moving randomly. I suspect either the logic board has developed a problem or the analog board is not supplying correct power to it.
Any suggestions where to go next?
Any suggestions where to go next?