I have a problematic Mac SE FDHD with lines going across the screen. I recently recapped the analog board and the (Sony) power supply. I also tried a second analog board and a (Apple/Hitachi) power supply and had the same screens. I am getting proper voltages on the power supplies and I have 11.9v and 4.9v at the floppy connector.
There is a similar post here from 2021 with what appears to be a very same issue, but unsure because I have tried two different analog boards. The board is clean and the Mac was booting correctly right after the analog board and power supply recap.
A few days ago, I went to boot it after a month and got the no chime and lines. I went through the solder joints on the analog boards again. Would this be a ROM issue? Or another IC that would cause this?
Any help would be appreciated.
Other Mac SE with similar issue in the forum.
There is a similar post here from 2021 with what appears to be a very same issue, but unsure because I have tried two different analog boards. The board is clean and the Mac was booting correctly right after the analog board and power supply recap.
A few days ago, I went to boot it after a month and got the no chime and lines. I went through the solder joints on the analog boards again. Would this be a ROM issue? Or another IC that would cause this?
Any help would be appreciated.
Other Mac SE with similar issue in the forum.
Mac SE FEHD - first checkerboard, now stripes, looking for repair guidance
Hi all! First post here, hoping for some advanced help. Thanks in advance! I picked up a Mac SE that I'm trying to get working again. It was initially booting to a checkerboard screen: My first stop was to clean the motherboard (which didn't look too bad) with alcohol, and re-seat the ROMs...
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