Thank you. I just restored this baby. Bearings were totally seized. Had to open them for a good cleaning and regreasing. They now work perfectly. Switches are a bit idiosyncratic. Have ordered some from digikey.
You’re oh so right. UH7 is a pain in the neck to solder. I wish I had soldered it at the very beginning of my project, when the board was still empty. Anyway, when I got at the end of the reload, I got horizontal bars. I had checked continuity 2 times on UH7 but there is so little space there...
OK, so here's the files for the international Apple Portrait Display.
You can import it in your virtual machine by dragging it in the"Outside world"f older. It will be stored in the "Downloads" folder of the latter.
Have fun
So here is a link to my infinitemac.org appletalk zone where you'll find the Apple Portrait Display files in the "Saved HD" folder.
I recommend you copy them in your own instance of the online emulator.
Enjoy
I have also found the disassembly instructions for the International model (a real challenge). Disassembling the neck board cage and desoldering its components is a nightmare. I'll post a link soon. In the meantime, I found another Portrait display in perfect working order. Keeping the other for...
So, after intensive Inernet research on crt troubleshooting, I re-disassembled the whole thing and checked the CRT neck board socket for bad solder joints and... bingo. One very bad joint, broken all around (coud see the connector moving when tweaking the other side) and one half cracked. I...
I recently fetched an Apple portrait display in good esthetic shape. The seller advertised is a "not sure it works but the green led lights up". The price being very reasonable, I took the plunge.
First hurdle was the infamous 13W3 cable which wasn't with the display. I bought it from Apple...
Check if each chip is in the right place. There’s an ID on each chip. It matches where they have to be. I don’t have access to this file right now (away on a vacation), but you can find it on the internet. It indicates where each PAL is located.
Definitely sound issues with Klondike and Canfield. Otherwise fast but not so when accessing disk. SCSI and disk access speed's probably the bottleneck.
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