[cctalk] Re: Axil 220/245 PSU

[Alan Perry via cctalk]

I looked around the board more and found "POR" etched on the board next 
to where the orange wire is soldered in and "P5" next to where the blue 
wire is soldered in.


"P12" is etched at where the yellow (+12V) wire is soldered in. "GND" is 
at where the black wires are soldered in. "N12" is at where the white 
(-12V) wire is soldered in.


How should POR be wired?

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  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 
 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

[cctalk] Re: Axil 220/245 PSU

[Wayne S via cctalk]

Here’s the link.

https://discord.gg/9g5bTAZe



Sent from my iPhone

On Dec 31, 2023, at 17:55, mark audacity romberg via cctalk 
 wrote:

How does one access the Classic Computer discord?

On Dec 31, 2023, at 18:03, Wayne S via cctalk  wrote:

Maybe ask in the Classic Computer discord? Very knowledgeable people there.

[cctalk] Re: Axil 220/245 PSU

[mark audacity romberg via cctalk]

How does one access the Classic Computer discord?

> On Dec 31, 2023, at 18:03, Wayne S via cctalk  wrote:
> 
> Maybe ask in the Classic Computer discord? Very knowledgeable people there.

[cctalk] Re: Axil 220/245 PSU

[Wayne S via cctalk]

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  
> 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  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  
 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
>>> 

[cctalk] Re: Axil 220/245 PSU

[Alan Perry via cctalk]

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  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 
 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

[cctalk] Re: Axil 220/245 PSU

[Alan Perry via cctalk]

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  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  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

[cctalk] Re: Axil 220/245 PSU

[Wayne S via cctalk]

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  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  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

[cctalk] Re: Axil 220/245 PSU

[Wayne S via cctalk]

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  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