Search results

I've been trying to source the pin header (2 x 40 pin 2.0mm right angle) from the usual sources (Mouser, Digikey, Reichelt, Farnell, Amazon) with no success. Does anyone have a good source that could deliver these?

I've managed to break the ferrite of one coil for L2 on the logic board. Would anyone have the specs of it or even a part number from Mouser or Digikey?

The original part starts to crumble into many pieces. Does anyone have an STL file of it?

The version hosted on Macintosh Garden generates an error when I try to expand it with Stuffit Expander 5.5. Does anyone have a .sit file that can be expanded? Version 3.0.1 works but throws an error on my Macintosh SE with the Gemini Ultra accelerator ("The control panel "virtual 3.0" cannot be...

What solutions are out there for the Macintosh II/x/fx series? I saw this https://www.instructables.com/Macintosh-IIfx-Modern-Power-Supply-Replacement/ but am wondering if there is a less complicated approach or solution.

And which open sourced application would deliver the biggest value to the Apple retro computing community?

I'm looking for the manual and any installation guidance for this Accelerator. The board replaced the 68000 CPU and was soldered directly onto the logic board. It came with a separate power supply:

I've recapped a IIfx PSU. It turns on as expected, though the resistors R26 and R15 of the PSU get very warm. After a couple of minutes (less than five), R15 is already at 131.7C (269F). What could be the issue with them? Or is this normal? I suppose such a high temperature is not desired...

I managed to break off a part of the "floppy disk in drive"-sensor part in the 400k drive. Does anyone have a STL file so I could 3D-print it?

I recapped the analog board of a Mac 512. All worked fine. After it was stored for a couple of months, I started the Mac again But this time, the CRT would not turn on. There was a solid boot chime/beep though. Voltage on the 5V and 12V/-12V rails were normal. Troubleshooting done so far: -...

This IIcx loops from on to off as soon as a known working (and recapped) PSU is connected to mains. The loop cycle goes a brief moment in "on" mode, then to off, then on again, etc.. No peripherals were connected to the board while powered on. What I have done so far: - Recapped logic board...

I have a IIci that powers-up a moment after it's connected to power. It boots normally but when it' supposed to shutdown, it reboots. What I have done so far: - recapped logic board - recapped PSU - checked each cap for continuity and correct polarity/capacitance/voltage - measured voltages on...

I just got an unopened kit of the "Micro Courier" for Apple ///. Unfortunately, the two floppy disks seem to have issues, so I can't start the program. Two questions: - Does anyone have disk images of "Micro Courier"? - Which program would you recommend to fix defective floppy disks...

Does anyone have a link to this file? VIMAGEPCCARD11.sit.hqx - I believe it's for this PC Card: I noticed this thread here but could not find it in the archives mentioned there: https://68kmla.org/bb/index.php?threads/interware-device-software.32951/page-2#post-398670

After the recap of a Sony PSU for my SE/30, the Mac won't start-up (no chime, no fan). The analog board is known working. Here are the readings from the idle PSU: I wonder why the -12V is so low. Any thoughts on that? Would adjusting "VADJ" at position 251 correct that or just increase it for...

Is there a 3d printing file available for the plastic lock at the bottom of the PSU's for the logic board power plug like this one?

Just got my first Q650. Does anyone know what the ports marked in yellow are for?

Can the AB be converted from an original configuration of 120V use 5o 240V use?

After a recap of my Portable (backlit), it chimes but produces this error with and without the RAM module inserted: 00000003 0000FF00 Any thoughts what the issue could be? - Chris

I'm looking for the installation guide for this accelerator. The connection to the CPU of the Mac is my main concern.