What makes you say that you cannot extend the cartridge connector? I did,
and it seems to be OK. The cartridge sits up in one of the spare 5 1/4 drive
bays....
Bob
"Fox-1" <MailMe@f@home.nl> wrote in message
...
> "James E. King" wrote
> > >> I also run both my blackbox' and my 130XE's on the same switching
> > PC powersupply
> > Could you supply the wiring specs (pin-out) for making this type of
> > connection?
> Depends a bit on the used connector on the black-box. Both mines have
different connectors. The colors described below (AT )
> are the ones I found and used on all 3 of my AT PC powersupplies. Verify
the voltages first before connecting anything!
> Take the connector that usually connects to the AT mainboard. Find the
right voltages and feed those to the blackbox.
> If you have a 4-pin connector on your blackbox (when looking to the
backside of the blackbox):
> +5V (AT red) most left pin on BB
> 0V (AT black) second pin on BB
> +12V (AT yellow) third pin on BB
> -12V (AT blue) most right pin on BB (only required for RS232 port)
> And the same for if your blackbox has a 7-pin connector (N.C.=not
connected):
> +5V (AT red) most left pin on BB
> N.C. second pin on BB
> 0V (AT black) third pin on BB
> N.C. fourth pin on BB
> +12V (AT yellow) fifth pin on BB
> N.C. sixth pin on BB
> -12V (AT blue) most right pin on BB (only required for RS232 port)
> If your powersupply for some reason has no -12V, you may also use -5V for
this (white color???) as the RS232 port will still work
> in 99% of the cases (depends on how picky your
modem/serial-printer/whatever is)
> To power the ATARI XL/XE computer (not 400/800/1200XL!!!) take a 7-pin DIN
connector, solder wires on it as desribed on my site
> and connect those to
one of the 4-pin peripheral connectors on the powersupply
> (same colors as above, but check it first). You can also use an old cable
from a dead original ATARI powersupply for this.
> Connect the "ground" to the 0V line. I know a 5-pin DIN also fits into
the 7-pin socket in the ATARI but try to avoid using that
> option since it will exactly fit into the monitor-output socket also! Be
sure the 0V and +5V wires are not reversed! When having
> checked that, re-check it again to be very sure. Nothing is so simple
that it can't go wrong...
> Hower I didn't do this myself, It's not a bad idea to mount a 2 Amp fuse
in between the +5V line and your ATARI. If something goes
> wrong into the ATARI, a normal powersupply would lower it's voltage due to
overload. Your AT one however keeps pumping until it's
> 400 Watt limit is reached. I have a nice example of a 130XE PCB laying
around of what may happen. Ever seen the inside of a
> POKEY, an NE555 or a GTIA, connected to absolutely nothing but still at
the right place on the PCB? :-))
> > I'm move my 8bit setup to the inside of an AT case
> Nice, but some dis-advantages. First is, the keyboard. With some trail
and error you can extend the keyboard flatcable, but you
> can not safely extend the cartridge connector.
> > Also, do you have any XF551 or 1050 drives connected to the PC
> > switching PS? If so, how did you wire that?
> XF551 Is easy, however there are two ways to do this. The easy one is the
remove the 7812 stabilizer and solder a wire in the PCB
> at the place from the output of the 7812 (right pin iirc). Connect this
wire to the +12V of one of the peripheral connectors from
> the powersupply (usually the yellow line) and connect 0V to it. This is
how I done it in my car, except the power-supply was a 12V
> car-battery in this case.
> This will work, but doesn't solve the heat problem into the XF551. To
also solve that, do the same trick again with the 7805
> stabilizer and connect it to the +5V in stead of the +12V. You may have
to remove the big capacitors, or better, replace them for
> small ones (low capacity, same voltage). Some AT powersupplies don't like
huge capacitive (or inductive) peripherals.
> Same for the 1050, except there is no easy option here. You always have
the remove both the 7805 and 7812 stabilizers and likely
> have to swap the capacitors in here also.
> --
> Grtx, Sysop Fox-1
> Remember what the Dormouse said...