On May 16, 21:59, Louis Schulman wrote:
> Well, I just got a fabled but seldom seen Exidy Sorcerer. It has a
> power supply problem (including the need to be converted back from 220
> to 110V) but I am working on that.
That should be fairly easy; you just change the transformer connections
inside the case. The 110V setting has two primary windings connected in
parallel to the mains; for 240V the black/red and black/yellow wire would
have been cut at the mains filter and joined together, putting the two
windings in series.
There weren't different units for the two voltages; Exidy literally cut the
wires as I describe above, and joined them together for the European sales.
If it's been set for the "wrong" voltage, it probably has been set for the
wrong vertical sync frequency as well. How you change this depends on
whether it's a Mark I or Mark 2. If it has three rows of DRAM, or sockets
for three rows, it's a Mark 2.
For a Mark I, there are 3 jumper sets on the underside of the PCB, beside
the ICs in positions 3B and 4B. The first set is a pair of square pads
between the rows of pins of 4B; connect them for 60Hz, or disconnect them
for 50Hz. The second set is a group of 3 pads between 4B and 3B. Two are
nearer 4B, one is nearer 3B, and they're arranged in an L shape. Connect
the middle of the L to the other one near 4B for 60Hz; connect the middle
of the L to the one nearer 3B for 50Hz. The last set is the other side of
3B; connect the two pads nearest 3B for 60Hz, connect the one nearest row A
to the one furthest from 3B for 50Hz.
For a Mark 2, it's easier. There's a 4-pole DIP switch at positin 11A on
the top side of the PCB. Switch section 1 off for 60Hz, on for 50Hz.
> The Sorcerer was a contemporary of the Apple II, Commodore Pet and
> TRS-80 Model 1. It was unique in a number of features, including its
> use of an S-100 expansion box. In many respects, it appears to have
> been inspired by the SOL 20.
>
> Info on the web in very sparse. I have nothing but the bare CPU, and
> photocopies of some manuals. I would like any info anyone has
> available, software, manuals, hardware, etc. Will pay good bucks, or
> trade from my vast collection of interesting stuff.
I have the BASIC ROMs, the original monitor ROMs, patched (bugfixed)
monitor ROMs, images of the WP PAC ROMs (anyone got images of the Dev Pac
ROMS? Or a WP PAc manual? I used to have all these...). I have both
Technical Manuals and the Software Manual, the smaller of the two BASIC
manuals, the S100 Expansion Unit Technical Manual, notes on the hardware
bugs (eg the RS232 misdesign on the Mark I, for which I have a fix), and
some expansion options (eg upgrading 32K Mk1 to 48K).
I'm not willing to part with manuals, but I'm happy to lok anything up for
you, and the ROM images and my source code is at
http://www.dunnington.u-net.com/public/ExidyROMs/
I've also got some games and other software (not much, I'm afraid, things
like Breakout, Galaxians, BASIC Toolkit) which aren't on line, but might be
available if you can't find anything elsewhere.
I assume you've found:
http://www.trailingedge.com/exidy/
http://www.heydon.org/kevan/collection/manufacturer-exidy/sorcerer.html
http://www.tardis.ed.ac.uk/~alexios/MACHINE-ROOM/Exidy_Sorcerer.html
http://www.lisp.com.au/~michael/exidy/
http://utopia.knoware.nl/users/stuurmn/exidys.htm
http://www.digidome.nl/exidy.htm
There are some errors in the last two or three pages (for example, it never
used a Z80A, and there was never any version but the 2.1MHz), but still
useful information.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Thu May 17 2001 - 13:41:57 BST