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    Macintosh Portrait Display Repair - Smearing/Pulsing Image on Screen

    Yep, I'm looking forward to get it fixed. To remove the Main Deflection Board (the sweep board on the domestic version) you have to remove the CRT-assembly and lay the CRT flat on the table. Very crazy. Haven't take it further apart until now. I don't know if the brown crust you can see on the...
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    Macintosh Portrait Display Repair - Smearing/Pulsing Image on Screen

    So, thanks to the German classic computer community - I found the Service Manual on the Apple Service Source CD 2.0 from the Internet Archive. Now I can check all the transistors and caps on the Main Deflection Board on my Portrait Display :) It's very different from the "domestic" version.
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    Macintosh Portrait Display Repair - Smearing/Pulsing Image on Screen

    Hey Steve, yep - the Rev B that I have seems to be different. The EMI-shield is different and the design of the boards too. Here are some photos of mine - manufactured in July 1992. Regards from Germany, Julian
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    Macintosh Portrait Display Repair - Smearing/Pulsing Image on Screen

    Hey! I've got a Portrait Display a few days ago with the original screen cable, but it doesn't power on. I don't hear high voltage at all. I've already checked, if the fuse is blown (it isn't) or if I see any loose connections on the board. I want to try to get this thing working, but my...
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