Search results

  • Please can you read through and vote on the following proposition for changes to the board structure by clicking here.
  1. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    Looks like I need to do a small protection PCB revision. My solution for connecting to the selected power supply is to sit down over the output pins and solder in place. That connector footprint was off by a tiny bit and scrapes the side of the mounting bracket. Moved that, rotated a few...
  2. Androda

    Multimeter recommendations: auto-ranging?

    I've had very good luck with the "Aneng" brand multimeters. Models 8008 and 9002. The 8008 was even reviewed by the EEVBlog, decent little meter. Note that I don't think they're trustworthy for high voltages due to lack of protection that you see in nicer meters. But for low voltage...
  3. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    Did a test on the latest design (using my LC II), and everything seems to be working. At this point the mounting bracket is probably the final target for some tweaks before this is ready to go.
  4. Androda

    Astec LCII PSU connector to the logic board

    The Molex 26-03-4070 is the exact connector end you need, and the Molex 45570-3052 are the crimp contact ends.
  5. Androda

    Recreating Backlit Macintosh Portable Display Flex Cables

    Yes, the connector is through-hole on the backlit portable display cable. So it could be semi-easy to do with desoldering braid. Next step for me on this project is to measure the original connector and try to find something that matches the pin pitch. If I can find one of those, then...
  6. Androda

    Recreating Backlit Macintosh Portable Display Flex Cables

    On the subject of recreation display cables, I just pushed the flex cable design for the backlit screen upgrade into my PCB Designs repo on GitHub. Note that you need connectors and the ROM slot card for this to work. This is *not* the 5126 backlit cable, this is the upgrade for the 5120.
  7. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    Will definitely post a picture here once I have one fully assembled and tested. There's not a lot of accidental contact surface on the top of these power supplies, which is pretty surprising. The exposed capacitor top doesn't test as connected to either positive or negative, and most of the...
  8. Androda

    BlueSCSI Variants and Availability

    The original BlueSCSI project is a fork of ArdSCSIno, with some code bug fixes to improve compatibility with later Mac OS versions. Mac OS 9.2 can be booted on a G3 using BlueSCSI, which is pretty cool if you ask me. This thread is for focusing on BlueSCSI variants which are available to use /...
  9. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    This solution doesn't technically need anything at all from the original power supply. Not the case, not the PSU to motherboard cable, nothing. The new power supply doesn't really fit in the original supply casing, tolerances are just not large enough for it to be safe. Hence the printed...
  10. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    Don't discount your work here, that mount design is miles better than the one I came up with. And you helped scouting for other parts.
  11. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    If all goes well with the PCB testing, I could have 5 ready after Christmas. :) If you really want to do a large order then let's DM about it. The parts are starting to be in short supply (sigh, like everything else) and might need to be ordered in bulk from China.
  12. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    This particular power supply is too weak for the IIci and similar. Another design would have to be sourced and designed around. I'm sure they exist.
  13. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    After an incredibly long delay, this project is back underway. I've designed a protection PCB that has fuses and zeners to protect the LC motherboard, and it's on the way from JLC now. @GeekyBit has designed a very nice 3d printed mount for this setup. More or less we're waiting for parts to...
  14. Androda

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

    If you're interested in trying a hardware and/or software fork of BlueSCSI, I have kits available that support external LEDs. On my site, designs which are blue PCBs run the mainline BlueSCSI software. Green and black PCBs are running a forked version of the software on different...
  15. Androda

    Recreating Backlit Macintosh Portable Display Flex Cables

    Hello everyone, As we all know, flex cables for a variety devices are starting to get a little bit creaky and in many cases have cracked. Great examples of these are display cables for the Macintosh Backlit Portable, PowerBooks, and the eMate 300 (though in the eMate's case it's because of a...
  16. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    I had no idea that little power supplies like these even existed. It's under-rated on the 5v line by a bit, but so is my board. And this is all-in-one. Just needs cabling and mounts.
  17. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    The 5v regulator is rated at 4.25 amps, slightly less than the 4.75 which the original power supply is rated for. It can briefly push 6 amps (this is the peak current limit), and if a small/quiet fan is integrated then 4.75 amps is probably doable. Just needs a fuse rated that high, currently...
  18. Androda

    Possibility of complete redesign and modern manufacture of LC-LC475 power supplies

    Been a long time since any updates, sorry. I'm sending a pcb and parts to @GeekyBit so he can put together a better mounting bracket than I designed. The PCB accepts a 12v power supply with barrel jack, or direct wiring into a 12v supply. There's no switch on the PCB, so your external 12v...
  19. Androda

    Soldering temperature

    Yes, the push and twist method is my favorite for removing the little SMD can capacitors. Never ripped a pad.
  20. Androda

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

    Feel free to ping me with whatever questions you have