Jump to content

LaPorta

68000
  • Content Count

    1600
  • Joined

  • Last visited

Everything posted by LaPorta

  1. LaPorta

    Imagewriter II ribbon cartridge sources?

    I ordered a pack of blacks less than a year ago. They work pretty well, though I’ve had a slight issue with them being overloaded and leaving small smudges around the letters on the first few passes.
  2. LaPorta

    SE/30 Logic Board Resurrection

    Small update: located one pin (SCSI Chip 32) which was not connecting with the corresponding pin on the SCSI drive cable header pin. Patched and bypassed it, but still no go. On the hunt for further problems! I also tested and verified F2 and D3 as I noticed they play into supplying the 5V for the port. All test good.
  3. LaPorta

    SE/30 Logic Board Resurrection

    While awaiting the SCC chips for my other SE logic board project, I decided to resurrect an SE/30 motherboard that I have had in my possession for a very long time. This came out of my SE/30 probably about 19 years ago. It stopped working somehow (I am no longer sure what the issue was), and on my high school allowance budget, I got a replacement SE/30 board for probably all of $10 at the time on eBay (it was the socketed one, too boot)! I decided to leave this one on the shelf in my room, propped up, as a display piece. There it sat for a good 15 years until I cleaned out my room when my parents moved. Fast-forward to now, and I looked it over. All surface caps had to go, of course. There was at least one bad trace that ran under C3 and C5 that I repaired. All in all, the board itself was fine otherwise. Green corrosion was scrubbed off with vinegar and a toothbrush. All caps were replaced with organic polymer models so they won't leak in the future. Insert original RAM and ROM SIMM, and, BAM, the thing actually started to gray screen, with pointer (and it moves: ADB mouse moves the pointer without issue. Startup sound via the speaker. Unfortunately, that is all it does: gray with the pointer, no blinking floppy. Reading my Mac Classic & SE Pina book, it seems as this happens when the Mac has bad SCSI signals (likely via a bad SCSI chip). For all I know, this is what the issue was when I replaced it all those years ago, I simply cannot remember. I'm going to check all the SCSI chip traces in case that is what it is, although so far they all seem to be good. Mouser had replacements, so that's a good thing. Regrettably, I have never done hot air/surface mount soldering other than caps before....so I may have to buy a surface re-work station. Before getting the SCSI chips, any other suggestions as to what may be wrong? As an aside, I used my copper foil tape to advantage fixing that trace. I coated the trace in solder, taped the coper tape over it, applied heat so that it would bond to the trace. Works perfectly. I then used liquid electric tape to coat and insulate it. I've included pictures of that as well, it really is a pretty visually appealing way to fix a straight trace. First photo is of the board before repair. Second is of the trace repaired with the foil. Third is the liquid tape over the trace repair. Fourth is the repair with the caps over it. You can see it blends in very well, you might not even notice. Fifth and final is the board so far with new caps installed.
  4. LaPorta

    SE/30 Logic Board Resurrection

    To be more specific, Bolle, it originally had the gray raster and no question mark problem. Now that I replaced the SCSI chip, the question mark comes up normally, and I can boot with a floppy, no issue. So, in effect, the SCSI chip works now as the machine can communicate with it...but SCSI itself is not working properly.
  5. LaPorta

    Apple Internet Router 3.01

    Thanks very much. Ill have to look into this. I’ve got a Mac Mini server that would be perfect.
  6. LaPorta

    Apple Internet Router 3.01

    Thanks! What hardware does virtual box run on, and what sort of OS do you need on it?
  7. LaPorta

    Apple Internet Router 3.01

    I wish I knew more about this stuff. It says this needs Linux to run. Any chance Of it working on OS X?
  8. LaPorta

    Apple Internet Router 3.01

    I would like to look into this as well as a possible way of still playing Bolo over the Internet.
  9. When you order, give us a link to which belts to order. I have a DV SE that will need one eventually, no doubt.
  10. LaPorta

    SE/30 Logic Board Resurrection

    I tried this morning with a known-good SCSI HD, to no avail. Using Apple HD SC Setup from a floppy freezes the machine. There must be some other error somewhere (diode, resistor, etc) along the chain that is likely causing something, but I don't know where that might be. I'll look at the schematics and see if there is anything obvious. Suggestions always taken, as usual. Also, is it rather easy to get replacement 50-pin SCSI headers if you really mangle them with heat?
  11. LaPorta

    SE/30 Logic Board Resurrection

    Update: I got the 858 iron as well as nozzle for the chip. Nice little package. Worked well too. I’d say the replacement was not so bad as far as my first try with removal and then resolder with regular iron: I fries the SCSI connector plastic a bit: will learn next time to cover it with foil or something. The positive is this: the machine now starts from a floppy! The old chip must have indeed been fried from past carelessness. However, I can not locate the internal drive in the bus, and it worked the last time I had this thing fired up. There may yet be some kind of issue, I wonder where to look next...
  12. LaPorta

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    Send me a PM. We will work it out.
  13. LaPorta

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    Just use the Monitors & Sound control panel to record an alert sound: easiest way there is. Cory is right: the regular PlainTalk mics were long gone by then. I believe yours will work, but the reverse is not true. The newer ones use a longer, 3-part miniplug that won’t fit the older Macs jack. Someone with more knowledge correct me: the extra contact on the newer one was either for stereo recording or rear noise cancellation ( I think it was the latter). if you want one, I have a few I’m trying to get rid of.
  14. LaPorta

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    Anything at all ImageWriter II and up as far as Apple printers. 90s HP DeskJets, Epson Stylus Color series are all solid choices, provided they work.
  15. LaPorta

    A tale of 3 Tibooks...

    My 2016 has had no battery issues at all. Anecdotal, I know. I also have probably 50 charge cycles on it for all of almost 3 years of use.
  16. LaPorta

    cheesestraws' conquests (cheesequests?)

    It really is nice how well it matches. Any reason you are keeping the mouse as well?
  17. Best of luck! Of the drive doesn’t work, you could always pop a SCSI2SD in there and use that.
  18. LaPorta

    LC575 screen

    I saw a neaT video once of then actually overhauling a CRT, melting off the back and re-doing and vacuuming the insides. I have no idea what they did, but I guess it is possible.
  19. LaPorta

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    How I wanted a machine like that back when.
  20. The machine starts searching for drives at address 0 and works up, so it will boot from the internal no matter what unless the drive is not system folder-equipped or you have set it to boot from the external via software. As for the drive, I assumed you were trying to rescue data. If you are not, just try and obliterate the thing with lido or the patched setup application. If there is a hardware issue it won’t work, and the. You can just toss the drive.
  21. Try Patched Apple HD SC Setup. Sometimes it can force the drive to mount if it is at all able to. If not, there are other options within, such as repairing the actual drivers.
  22. LaPorta

    SE/30 Logic Board Resurrection

    Thanks for the suggestion! I may give this a go. If I do go with the hot air station, which would you guys recommend? There’s a ton out there with a huge price range. Also, I don’t need a station that has an attached iron, since I’ve got a nice hakko station.
  23. LaPorta

    A tale of 3 Tibooks...

    My 2006 MBP was ideal to me. Thin, sturdy, and relatively easy to disassemble. The unibody was definitely harder in that regard.
  24. LaPorta

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    Love the Marathon Trilogy CDs at the top of the stack.
×