Apple PSU Astec

Unal Z

unread,

Aug 4, 2002, 11:48:30 AM8/4/02

to

Two cigarette packs (80's) long, two cigarette packs thick, no fan.
Output: +5V, 3.25A; 0.075A; +12V, 0.75A.

Could be useful as a PSU for an external CD-ROM drive ?

Connected to a small Apple "planar" - MC68020, around 1990-91. Two 30-pin
DRAM SIMM sockets, one 72-pin VRAM SIMM socket, all unpopulated. One 50-pin
drive connector, two 20-pin (floppy drive?) connectors, one 65-pin three-row
daughter board connector, some RAM onboard.

Which Apple could be that?

--
UZ

Fred Mau

unread,

Aug 4, 2002, 3:59:24 PM8/4/02

to

Sounds very similar to my MAC IICX, except the CX is MC68030 not '020.
Maybe a IIFX ?

- FM -

"Unal Z" <findme@unalz-at-mailru-dot-com> wrote in message
news:3d4d4cd6$0$13674$91ce...@newsreader02.highway.telekom.at...

Elar Saar

unread,

Aug 4, 2002, 4:17:09 PM8/4/02

to

Mac LC, if it looks like this:

http://www.micromac.com/macpixpages/a_mac_lc.html

Elar

Unal Z

unread,

Aug 4, 2002, 6:07:48 PM8/4/02

to

> Mac LC, if it looks like this:
>
> http://www.micromac.com/macpixpages/a_mac_lc.html

Exactly, many thanks for the link.

--
UZ

Mark Valiukas

unread,

Aug 4, 2002, 8:54:10 PM8/4/02

to

<ftp://download02.info.apple.com/Apple_Support_Area/Misc/Service/servicemanuals/quadra_605.lc_series.pdf>
(link found at http://home.wanadoo.nl/manual.man/manuals.html)

You might also need to know how to get it going without
a macintosh attached. I know some (most?) of their service
manuals had test procedures for the PSU; hopefully this
one will too. At the very least, it should save you having
to poke around with a multimeter.

NB I can't verify that this contains exactly what you need,
as I can't download it at the moment - out firewall seems to
kill some FTP transfers.

I'd be interested to hear how you get on with this, as I have
an LC that is becoming less and less useful as anything other
than an organ donor :-)

Mark.

- remove !@#$&change$tos William R. Walsh

unread,

Aug 4, 2002, 9:26:57 PM8/4/02

to

My Mac II has a big noisy fan, and the PSU certainly sounds larger than what
Unal compares it to...though I'm not sure what size that really is.

William

Eugen Mezei

unread,

Aug 5, 2002, 4:57:37 AM8/5/02

to

"Unal Z" <findme@unalz-at-mailru-dot-com> schrieb im Newsbeitrag
news:3d4d4cd6$0$13674$91ce...@newsreader02.highway.telekom.at...

It's a PS for a pizzabox Mac. LC or LC II (MC6820) but also fitting other
pizzaboxes (LC III, Performas).
Yes, you can use it for an external CD-ROM. I do that too.

Eugen

Unal Z

unread,

Aug 5, 2002, 8:17:58 AM8/5/02

to

> I'd be interested to hear how you get on with this, as I have
> an LC that is becoming less and less useful as anything other
> than an organ donor :-)

It was a matter of seconds before this "logic board" and the PSU were going
to be scrapped forever, so I just picked them up, mainly for the little PSU.
I have no idea what to do with this board, may be just look at it or hang it
on the wall, as long as space allows (that won't last too long). I can also
forward the board to someone wishing to do something more useful with it.

--
UZ

Unal Z

unread,

Aug 5, 2002, 8:25:43 AM8/5/02

to

> My Mac II has a big noisy fan, and the PSU certainly sounds larger than
what
> Unal compares it to...though I'm not sure what size that really is.

About 8" (30 cm) long, 2.2" (5.5 cm) high and 1.3" (3 cm) wide, no any fan
in the PSU. Made by Astec, 1990-91. At least a CD-ROM drive could be
attached to the +12V, the specs match.

P.S. Eugen Mezei confirms the CD-ROM, good to know. I might eventually try
to assemble an external SCSI MO-drive.

--
UZ

Jason Whorton

unread,

Nov 15, 2002, 12:46:53 AM11/15/02

to

Though he has already found it to be an LC, I think the Ifx was the one with
the 64-pin SIMM's.

Hope this helps,
Jason Whorton

"Fred Mau" <fred...@attglobal.net> wrote in message
news:wIf39.49001$Ru5....@rwcrnsc52.ops.asp.att.net...