Search results

  1. wottle

    Macintosh TV CRT replacement

    Awesome, that's good to hear. I'll certainly check the CD ROM. No CD caddy, so I'll need to grab one off eBay, and the case looked in rough shape, but I'm hoping it's mostly just really dirty. Will post pictures when it arrives. I may be lucky and the person may simply not know that you...
  2. wottle

    Macintosh TV CRT replacement

    I recently picked up a non-working Macintosh TV that is not in the best shape. I'm hoping a good cleaning will restore the black plastic to a respectable condition. However, the CRT has a scratch on it, and I'm wondering if the 14" Trinitron is shared with other LC / Performa models. I have...
  3. wottle

    BlueSCSI - Open, Low Cost, DIY SCSI to SD device

    Does the MacSnap provide enough term power to power the BlueSCSI? Have you tried it powering the blueSCSI via usb?
  4. wottle

    SE/30 Micron GrayScale issues

    Gotcha. I may have missed that in your post. I wonder if you can figure out what part of the Exceed board deals with the vertical sweep and maybe replace the components in that portion of the board?
  5. wottle

    SE/30 Micron GrayScale issues

    FYI, I received my new U2 chips from Mouser today, swapped out the chip and the video is working again. The part number is SN74LS38N and here is a link if you want to give it a shot. https://www.mouser.com/ProductDetail/595-SN74LS38N
  6. wottle

    Diagonal lines on Macintosh Plus (Solved)

    So, quick update. I actually received my Mouser shipment today and decided to swap out U2 as that was a recommendation I had seen for similar issues. Put in a new IC from mouser, fired up the Plus, and my picture is back! The geometry is all messed up from my adjustments, but I now get the...
  7. wottle

    Massive Vintage Apple Haul in Idaho

    Yeah, I've heard the power connector on these is prone to losing its connection. I'd start there.
  8. wottle

    Diagonal lines on Macintosh Plus (Solved)

    I do. If I swap in a working board from another machine the image is fine. Although I'm a bit nervous doing stuff around the high voltage stuff on the analog board. Reading the voltages for the logic board is something I've done. What specifically should I be looking for?
  9. wottle

    Diagonal lines on Macintosh Plus (Solved)

    No, no disk icon or desktop. However, it appears to be loading from disk (according to the lights on my FloppyEMU) so it feels as though it is booting.
  10. wottle

    Diagonal lines on Macintosh Plus (Solved)

    I actually re-soldered all 3 J connectors, as this board came from a machine that would power on with no image, which was fixed when I reflowed a couple of noticeably cracked solder joints. So to be safe, I removed the solder from the connectors and re-applied fresh solder to all the pins. I...
  11. wottle

    Diagonal lines on Macintosh Plus (Solved)

    I'm kind of shocked on doing research into this one. I've found several instances of people reporting this issue on various forums (reddit, 68kmla, etc.) and so far none have fixed the problem. Some just stopped messaging, others said they put the machine up for auction / parts, but I haven't...
  12. wottle

    SE/30 Micron GrayScale issues

    On the Plus, there is no adjustment on the flyback, so I'm guessing the G2 voltage is the cut off voltage controlled by R53. I could be wrong, but I didn't see any other adjustment on the flyback itself. And it made no difference. I also re-soldered all the pins on the connectors to the yoke...
  13. wottle

    SE/30 Micron GrayScale issues

    Looks like your analog board is dealing with a similar issue to my Mac Plus: https://tinkerdifferent.com/threads/diagonal-lines-on-macintosh-plus.1436/ Let me know if you find out the cause and I'll do the same.
  14. wottle

    Diagonal lines on Macintosh Plus (Solved)

    I was running a longer duration test of my Mac Plus (with 030 accelerator) and came back into the room to find the picture was gone and replaced with diagonal lines and the image was stretched beyond the edges of the CRT. I tested my voltages and they are stable and within spec on 12.0v and...
  15. wottle

    120GB SSDs in G4 Cube

    True. It could have nothing to do with the master / slave config and something with you using multiboot. The master/slave config and the multi-boot feel like the two most likely candidates.
  16. wottle

    What are your vintage grail items?

    I've gotten most on my list: SE/30, Cube, TAM, Color Classic (with Mystic), Performa 6400 running BeOS (obscure one), NeXT Station, iBook (still would like a lime green one), Apple IIc+, the Apple 17" Studio CRT, Flower Power iMac g3. The remaining items I have on my list are a NeXT Cube...
  17. wottle

    120GB SSDs in G4 Cube

    If it is an issue with the master/slave identification, that would point to a problem with the case, as it is responsible for controlling the master / slave / cable select behavior for IDE, as the mSATA drive doesn't support that natively for an IDE connection. If you look at my case, the...
  18. wottle

    No video out on 030 upgraded Mac Plus

    Ah, that makes sense. Build one PCB that could be used for both 020 and 030 accelerators. Having PCBs manufactured was probably a lot more costly to create the tooling, so for lower volume, making a board that served both purposes would probably save money.
  19. wottle

    120GB SSDs in G4 Cube

    If you go back to my earlier post, I have that in my Cube and don't have the issue you are seeing. Not sure if it's your case, adapter, or SSD, but it's not a problem with using an SSD. Although I have two cubes and I think one is using this adapter...
  20. wottle

    No video out on 030 upgraded Mac Plus

    Also, anyone know what the empty U12 socket would be used for? It almost looks like a second CPU socket.