Maybe ask in the Classic Computer discord? Very knowledgeable people there.
Sent from my iPhone > On Dec 31, 2023, at 15:39, Alan Perry via cctalk <cctalk@classiccmp.org> > wrote: > > The really frustrating thing is that I found a Usenet thread from 1998, > after Axil shut down, where someone asked a similar question about Axil > 220/245 PSUs and a former Axil employee seems to have sent the person > documents that he needed to get his system going. Sadly those documents > haven't managed to make their way to bitsavers or archive.org. > > alan > >> On 12/31/23 3:33 PM, Alan Perry via cctalk wrote: >> Not really. As I said, Sun and Axil, while using the same 12-pin power >> connector, put the pins in different positions and color code the wires >> differently. For the 220, Axil also sourced the PSU from a different vendor >> and it is a completely different size (almost the same size as a flexatx >> psu). Also, only 10 of the 12 pins are used. >> >> The Sony PSU used in pizza box sun4c system changed from black >> (GND)/red(+5V)/yellow(+12V)/blue(-12V)/orange(+5V POR) to >> black/red/blue/brown/gray. The sun4c lunchboxes used the same connector >> except they started call the orange/gray pin SENS (is that the same as POR >> in Sun's usage?). The sun4c lunchbox scheme continued through the sun4m >> lunchboxes. The sun4m pizzaboxes went to an 18-pin power connector with the >> same wire color scheme, except gray became "PwrOff"/"Poff". >> >> The PSU in my Axil 320 (a SS10/SS20 clone) uses the 18-pin connector and a >> color scheme similar to the SS10/20 one but I haven't checked all of the >> pins to see if they are completely the same. >> >> >>> On 12/31/23 2:44 PM, Wayne S via cctalk wrote: >>> Also a link to the lx service manual >>> >>> http://www.obsolyte.com/sun_lx/sparcLX.pdf >>> >>> Sent from my iPhone >>> >>>> On Dec 31, 2023, at 14:37, Wayne S <wayne.su...@hotmail.com> wrote: >>> >>> Does this help? >>> >>> https://allpinouts.org/pinouts/connectors/power_supply/sun-sparcengine-motherboard-power-supply/ >>> >>> >>> >>> Sent from my iPhone >>> >>>> On Dec 31, 2023, at 13:48, Alan Perry via cctalk <cctalk@classiccmp.org> >>>> wrote: >>> >>> Does anyone here have a running Axil 220 or 245 (Sun SPARCstation LX >>> clone)? My 220 has a dead PSU and I am trying to get it working with a >>> modern PC PSU. But I don’t know the pinout for the power connector. >>> >>> While the power connector is the same as used by Sun, the pinout and, aside >>> from +5V and GND, the wire color scheme are different. I have identified 3 >>> of the 6 wire colors and 7 of the 10 pins. The wire color scheme seemed to >>> be a match for early sun4c but I just found something that suggests a >>> couple wire colors are used differently. >>> >>> I have found that black is ground, red is +5V, and yellow is +12V. White, >>> orange, and blue are TBD. A marking on the PSU board suggests white is >>> -12V. Blue and orange seem to only used by a daughter board centered on a >>> LM339 chip. But, as a software guy, I can’t tell what it does. >>> >>> Anyone here have any insight here that might help me? >>> >>> alan >>>
