TECH: FunHouse ROM prob - L3->L9
Thomas B. Collins Jr.
tech who burned the new ROM told me that it was a 2 meg ROM (the L3 was a
1 meg ROM). The machine doesn't come up with the new ROM, the error LED
indicates that the ROM (U6) is bad. The sound ROMs stayed at L2 (and as
far as I can tell, I don't have a prototype sound board).
I remember doing RAM upgrades on Mac Pluses, and you had to cut a
resistor when you went from 256k to 1 meg SIMMs. I'm wondering if I have
to do the same thing to my CPU board.
Can anyone help me? I'm going through withdrawl. It hurts. I
miss Rudy.
-Tom Collins
Louis Koziarz
Thomas B. Collins Jr. <i...@indirect.com> wrote:
> I recently upgraded the ROM in my FunHouse from L3 to L9. The
>tech who burned the new ROM told me that it was a 2 meg ROM (the L3 was a
>1 meg ROM). The machine doesn't come up with the new ROM, the error LED
>indicates that the ROM (U6) is bad. The sound ROMs stayed at L2 (and as
>far as I can tell, I don't have a prototype sound board).
>
> I remember doing RAM upgrades on Mac Pluses, and you had to cut a
>resistor when you went from 256k to 1 meg SIMMs. I'm wondering if I have
>to do the same thing to my CPU board.
Yes, you do. Many (all?) of the FunHouse WPC CPU boards were jumpered
for a 1 Meg Game ROM (U6). Solution? You need to pull out jumper W2
and replace it with jumper W1. If you look to the right of U6, you'll
see four solder pads with a jumper (or 0 Ohm resistor) installed like
this: (Warning: bad ASCII ahead)
-----
| | W2 O-+
| U6 | O |
| ROM | |
| | |
| | O-+
----- W1 O
If you count the solder pads from top to bottom, the jumper in the 1 Meg
configuration will go from pad 1 to pad 3. If you carefully heat up the
pad 3 end of the jumper, pull it out, and solder it to pad 4, you will
have disconnected W2 and attached W1. You can now use the 2 Meg ROM.
(I would have mailed this, but I get the feeling other FH owners out there
might be interested in L9 and face a similar problem. Clip 'n' save.)
--
Louis Koziarz
koz...@mcs.com http://www.mcs.com/~koziarz/home.html
Tom Collins
> Yes, you do. Many (all?) of the FunHouse WPC CPU boards were jumpered
> for a 1 Meg Game ROM (U6). Solution? You need to pull out jumper W2
> and replace it with jumper W1. If you look to the right of U6, you'll
> see four solder pads with a jumper (or 0 Ohm resistor) installed like
> this: (Warning: bad ASCII ahead)
>
> -----
> | | W2 O-+
> | U6 | O |
> | ROM | |
> | | |
> | | O-+
> ----- W1 O
>
> If you count the solder pads from top to bottom, the jumper in the 1 Meg
> configuration will go from pad 1 to pad 3. If you carefully heat up the
> pad 3 end of the jumper, pull it out, and solder it to pad 4, you will
> have disconnected W2 and attached W1. You can now use the 2 Meg ROM.
Just as a followup on this thread, according to the tech, starting with
L7, the FunHouse ROM has been a 2 meg ROM. And for those interested, it
seems that L9 recently came out. When I called about getting the upgrade,
he stated that he had just received L9.
As a side note, why doesn't Williams actually use jumpers? Does it add
that much to the production costs of the machine to have a jumper block?
And why aren't those setting documented in the manual anywhere? When
Williams released the L7 ROM (first 2 meg one), did they have a little
sheet documenting this change? And, how hard would it be to have "1 meg"
and "2 meg" screened on the board next to "W2" and "W1"?
-Tom Collins
(off to bring Rudy back to life)
Johan von Boisman
>In article <33qbtp$o...@Mercury.mcs.com>, koz...@MCS.COM (Louis Koziarz) wrote:
Stuff about FunHouse ROMs...
Yes yes yes, very well...
But where do you get them? I've asked the Swedish
Williams distributor, but after explaining for
them what ROM revisions are anyway, they claim
they don't know about more recent ones than L-5.
--
Johan von Boisman Chalmers University of Technology
d6...@dtek.chalmers.se Gothenburg, SWEDEN
Jonathan N. Deitch
> I recently upgraded the ROM in my FunHouse from L3 to L9. The
>tech who burned the new ROM told me that it was a 2 meg ROM (the L3 was a
>1 meg ROM). The machine doesn't come up with the new ROM, the error LED
>indicates that the ROM (U6) is bad. The sound ROMs stayed at L2 (and as
>far as I can tell, I don't have a prototype sound board).
Okay ... first of all, I want a copy of that L9 ROM .... :)
Second, find your WPC manual and reset your CPU board's ROM select jumpers
for a 2meg ROM.
Also make sure the chip he burned is good. It has been known for newly
burnt chips to "forget" their information.
- Jonathan
--
mus...@gsusgi2.gsu.edu | "I Hate it when I can't trust | Atlanta 1996 !!
jde...@aol.com | my own technology!" - LaForge | Play Pinball !!
jde...@gisatl.fidonet.org |--------------------------------------------------
--------------------------- "Thrills! Chills! Magic! Prizes!" -- Hurricane
Gene Roddenberry, Isaac Asimov, Jim Henson, Dr. Seuss, Mel Blanc ... Sigh ...
Pete Bochel
[instructions on how to install a L7 to L9 FunHouse ROM deleted]
It's good to find out how to upgrade to L9 but is it worth it ...
Does anyone know what rule changes there are between L2/3 and L9 ?
Pete.
--
Peter Bochel p...@geosys.co.uk
OilField Systems Ltd, Winchester, England.