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SuperSVGA

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  1. I recently acquired a very strange Apple ][ Plus (let's just say the motherboard and power supply are the only original parts). It seems to start up fine (so far I've only tested it with all the cards removed), but many actions will cause it to crash to the monitor or get stuck printing "?FORMULA TOO COMPLEX". I'm suspecting there's something wrong in either the RAM or the ROM, but I haven't been able to play around with it much due to an injury. I have a feeling I'm going to have to lug out my IIgs to make a diagnostic disk using ADTPro, but that's assuming the disk ca
  2. I looks nearly identical to the Lapis DisplayServer SE and the Mobius Multiscreen. I'm guessing drivers from either would be compatible.
  3. The pincushion distortion makes me think something might be wrong in the pincushion circuit, though I don't know much about it on this board. You could check the various transistors for bad joints (QL1, QL2, QL13, and QP11, not sure which one is for the circuit in question though). That resistor burning up makes me wonder if there's a short or something, but could also be a bad joint I suppose.
  4. The orange glow means the heater is probably getting voltage fine, but you aren't getting an image. So at least that part of the video/neck board is working. Unless the logic board isn't outputting video for some reason, I would say the problem is in the analog board somewhere. I'm not sure if the heater voltage comes from the flyback or the main power supply on the Classic II. I doubt anything is wrong on the yoke, or else you should have at least had something on the display. Other than that you might need to go over the board some more and double check there are
  5. Well, it will either work or it won't. I wasn't able to find anything online about what the minimum operating voltage of the custom CMOS chip is, so it's hard to say. I need to get a variable power supply one of these days so I can test it.
  6. That connector looks very similar to one of the variations of the Classic 4 wire yoke connector, but the wire colors are different. If these were Apple intended tubes at all, it's possible they were for one of the 12" Macintosh CRTs, but I don't have much to compare with on those. Definitely looks too new to be the Monitor /// tube at least. I suppose one thing you could look at is whether the cathode end has the usual 7 pin base.
  7. The Lisa's display was 12" diagonal, so if you've worked with compact Mac CRTs you would probably notice a major difference in size. I've attached some pictures of Lisa CRTs I found online, it's possible the design differed between CRT models but they don't look much like the one in your image.
  8. Looks very similar to a Macintosh Classic yoke based on design and part number. Most of the Lisa CRTs I see online don't look like this.
  9. If you can't find any other solutions you could always line up 3x1.5v coin cells.
  10. I think it's saying that it thinks bit 18 is bad, although I may have my math wrong. Theoretically setting R36 and putting the SIMMs in bank A (slots furthest from the edge of the board) seems like it should have worked, so I have a feeling someone else is going wrong.
  11. I think there's an 8th on the right side, just slightly cut off due to the angle. It seems to connect to my switch just fine, the switch identifies it as 10HDX, which I assume is correct. It just doesn't seem to show up on the network though even with a static IP set.
  12. Hmm, the SE/30 it came out of was running 7.1, and apparently it somehow worked on there. I guess I could try installing 7.5 if I have to. I did try setting a static IP in MacTCP, but it didn't seem to do anything on the network (unless I still needed to launch a web browser or something).
  13. Does anyone know of any compatible drivers for this card? I got access to an SE/30 that it was in to boot up but didn't see anything that looked like any sort of driver. There were things in the Extensions folder like Apple IP Gateway, EtherTalk Phase 2, Link Tool Manager, SNMP Manager, Timbuktu, as well as MacTCP. Could any of those be providing the driver?
  14. Yep, that was it. I finally got the SE/30 out and it was identified as a CNet Technology CN470E card. Now to find some drivers that work...
  15. I recently found this card, and it's not one I've seen before. There are no clear identifiable markings on it other than "470E". Has anyone seen this card before?
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