[SunRescue] Q: regarding Axil 220/245 systems...
James Lockwood
james at foonly.com
Mon Apr 24 11:29:08 CDT 2000
On Mon, 24 Apr 2000, Ken Hansen wrote:
> The Axil 220 motherboard has only 3 connectors that go off the board to
> neccessary (?) connections - SCSI, Floppy, and power. What I want to
> know is what can I do with this old motherboard?
>
> - Does anyone have a dead Axil 220/245 system with good case/PS?
>
> - Does anyone know the specs for a replacement PS?
I've build several of these boards into Sparc 1 chassis. This has
required a bit of modification but they do fit, and the SS1 p/s will work
with repinning. A PC p/s will also work and may be easier to get up and
running.
Here are the pinouts, note that the power connector is identical to a
SS1/etc powersupply but the pinouts are unique (these are all for the 245
but should be the same for the 220). The p/s connector is a "12-pin
mini-fit Jr. (I think that's right)" connector, available from Digi-Key or
similar sources for under a dollar.
Pinouts (these are the pinouts looking into the motherboard connector,
_not_ the powersupply connector!):
J1401: Motherboard power connector. Pin #1 is right next to the "J1401"
silkscreening. Note that this is the view of the connector on the
motherboard from above. Diagram:
_____
_______________| |_______________
| ___ ___ ___ ___ ___ ___ |
| |12 | |10 | | 8 | | 6 | | 4 | | 2 | |
| |___| \_/ \_/ |___| |___| \_/ |
| ___ ___ ___ ___ ___ ___ |
| |11 | | 9 | | 7 | | 5 | | 3 | | 1 | |
| \_/ |___| |___| \_/ \_/ |___| |
|_____________________________________|
Pins:
1: +12 (yellow)
2: NC
3: -12 (white)
4: GND (black)
5: +5 (red)
6: GND (black)
7: +5 (red)
8: GND (black)
9: +5 (red)
10: +5 (orange)
11: NC
12: +5 (blue)
I'm not sure of the precise use of the orange and blue lines. One of
them is probably "power-ok". Tie them both to the power-ok line of
your powersupply and you should have no problems.
J1404: Floppy drive power/Case LED connector, 4-pin in-line. Pins:
1: Floppy +5V
2: Floppy GND
3: Case LED GND
4: Case LED (+5V current-limited)
J1405: Side fans/Speaker connector, 6 pin in-line. Pin #1 is the closest
pin to the SIMM slots. Pins:
1: Fan #1 (closest to CPU) GND
2: Fan #1 +12V
3: Speaker +
4: Speaker -
5: Fan #2 GND
6: Fan #2 +12V
J1501: Standard 50-pin SCSI connector
J1503: Standard 34-pin floppy connector. Manual eject PC floppies seem
to work.
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