JagCube - Atari Jaguar 2 Prototype
- ️Clint Thompson
| Atari Jaguar 2 (COBWEB) Unreleased Prototype |
|
| Atari Jaguar 2(COBWEB) |
| This
is what makes Atari so interesting, so many unreleased products that could
have saved their @rse!
The
above board is (currently) non-working, but I'm in the delicate process
of trying to (revive) the bad boy!
I
know the case is the JagDuo case, but being the JagDuo wasn't going to
be released and that the Jaguar2
|
| A Start with Jaguar 2 Memory... |
|
| As
you can see, there is supposed to be a total of 8MB of RAM for the Jaguar
2. Using the same tired memory
from the original Jaguar, this is to keep compaility for the backward-use of Jaguar. It
would only make since for Atari to use the minimal amount of needed memory
until finalizing produciton to
|
| Jaguar 2 Connections |
|
| I
will call this the (back-side) of the Jaguar 2. As normal, you have the
RF lead, DSP, A/V and PSU, but
additional to all that is an extra expansion port that would allow for external memory/cpu. It's really hard telling what Atari was thinking for this port, except for upgradability and future add-ons (as always) |
| The first console to have jumpers? ;-) (early early prototype stages, go figure) |
|
| Above
you can see the jumper selections for the Jaguar 2. The top jumper is a
75Mhz selector from what I can
gather. Along with all my researching, I've seen the Jaguar 2 specs with the TOM II chip running at 75Mhz with 4MB of on-board RAM. The
left jumper is to select from Jaguar 1 to Jaguar 2 (The lower (daughterboard)
has
the original crystal
It's
really hard to tell if the crystal on-board is there for the Jerry II at
all times or the selector will jump from
As soon as I get the prowler on the run, I'll update this section accordingly. |
| Jaguar CD Chip |
|
| Also,
the Orbit chip that can be found in the Jaguar CD is on the Jaguar 2 board.
The power connections are
the same (seen above, JP1 - JP6) but there are 2 connectable rows of pins (10 on 2 lines, 20 lines) of course for the data from the drive. I'm not sure if I'll ever mess with getting a Jaguar CD to hook up and work on it but I guess that depends on if I can actually get the unit to power up first. |
| Speed again.. |
|
| Again,
a better look at the shitty daughterboard and resistors along with the
32mhz crystal I was talking about
earlier. Guess they haven't figured a way out to make it software - switchable (which is a good thing really, because hard telling if it would have ever seen the performance of the Jaguar 2 if that was the case) |
| The 68000 (ehhh...) |
|
| Ok,
this is where I start to question the Jaguar 2 FAQ again....
it's supposed to be a 68EC020, ummm...
Anyhow, again, Atari could have been playing around with chips as to what they should use or not.... besides, it's not the heart of the system, either way you look at it (though it seems a lot of people view it that way) |
| The TOM-II (Ripping Speed) |
|
| Yep!
That's what I said! (That's the TomII?) Looks like Felix chip to
me! Ahh, kinda scarry actually, but again,
Atari was probably using what they had and something the could load code onto easy. The numbers are marked out by marker (no luck of seeing what it is, except for Toshiba of course) The
pins were bent straight to hell when I got this unit, took me a few hours
to get them just right and seat
|
| TomII with Heatsink, Yeah, I should use a fan maybe... we'll see though... |
|
| Jaguar 2 Reset Switch |
|
| The Updates... |
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Hope
everyone has enjoyed the detailed pics I've put up so far! Check back for updates as I'll be posting them as progress is made! -//JagCube//Clint Thompson |
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