Marco Specialties sells similar boards by the Pinball Lizard for $99.
They are at http://magenta.com/marco.hardware last time I looked.
Hope this is some help. If you do find a schematic for both, please
let me know. I would like to build them too, if I can for a lot less
than $99.
--
_/_/_/_/_/ _/_/_/ Jerry Stiller
_/ _/ sti...@ti.com
_/ _/ 972-952-5293
_/ _/_/_/ 972-442-2012
> I am trying to restore a couple of Bally pins and could use the Bally
> diagnostic modules aid1 and aid2. I have the schematic for the aid2 and
> can build it myself if necessary, but haven't been able to find a reference
> for the aid1. I would appreciate any help on locating the modules, or a
> schematic for the aid1. Thanks
I have an AID 1 (AS-2892) and an AID-2 (AS-2892-1) and the original manual
that was packaged with them (FO 560-3). What are they worth?
David Gray
--
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Due to recent budget reductions all funding for smoke has been eliminated.
This operation will now run entirely on mirrors.
The above opinions and statements are my own and therefore do necessarily
represent the opinions of Two-Bit Pinballs.
> What the aid1 looks like I have no idea. The aid2 consists of a 28
> connector molex connector part #22-01-2281 (KK100 series) with 1.2k
> resistors connected to the first 23 pins. The resistors must be
> installed such that a clip lead can be connedted to them between the
> resistor and the connector. These resistors are tied together with a
> clip lead so that they can all be connected at the same time to ground
> or +5v. Pin 24 is connected to two clip leads, the first is connected
> to ground, and the second is used to ground the connections between
> the connector and the resistors. The finished connector goes on J5 on
> the mpu module. I estimate the parts would cost about $5-10, and
> about an hour to build it.
Hi Dave;
How about a schematic? Perhaps a dreaded ASCII picture or better still a
bitmap that you could attach to an Email. I for one would very
appreciative.
--
Rod from the middle of the Great White North
rono...@infobahn.mb.ca
He's right... I've found the same to be true!
'Pistol Pete'
TCalla7290 <tcall...@aol.com> wrote in article
<19970402033...@ladder01.news.aol.com>...
> Why? Neither one will tell you what is wrong with a Bally MPU. A logic
> probe, digital VOM and clean, readable set of schematics are all you will
> EVER need to fix this system. Take it from someone that has fixed over a
> thousand mpu's and never used (my) bally aid kits. They are a waste of
> time. If the mpu is locked up with stuck address/ data lines, no 'clip
on'
> kit will tell you WHERE those stuck lines are on the board. A logic
> probe/ vom will. Give me some symptoms and maybe I can help. The Repair
> Connection TRC
>
I have a board that boots with 7 flashes for the very first attempt of the
day (then locks), then after that 'sticks' ie stays lit on the third flash
for any other attempt. I have replaced all the socketed ICs (except for
the program ROMs) and U17, U18, and U19. I'm not sure what to try next.
Is the program ROM bad? I might try swapping the 5101RAM with a 2101 and
see if that make any difference. Any ideas?
klh
>I have a board that boots with 7 flashes for the very first attempt of the
>day (then locks), then after that 'sticks' ie stays lit on the third flash
>for any other attempt. I have replaced all the socketed ICs (except for
>the program ROMs) and U17, U18, and U19. I'm not sure what to try next.
>Is the program ROM bad? I might try swapping the 5101RAM with a 2101 and
>see if that make any difference. Any ideas?
Some varieties of PIA (6821) can cause this behavior (going to seven
flashes then not working). If you can switch brands or steal one from
an old board, that would eliminate this as a cause. I'd also suspect
maybe a different brand of 5101 might be worth a try.
Mike
Check the socket for the 5101 and the 6821 at the bottom of the board.
Alkalia that leaks from the nicad battery will eat the pins right out of
the sockets, causing an intermittent connection. Any vibration will
cause a loss of contact of sufficient duration to crash the game
program. If I find electrolyte damage on the board I make it a point to
change the sockets.
'Pistol Pete'
As a side issue: I've always wondered why the ROM checksum test wasn't
implemented for the Squawk and Talk module since a similar test already
existed with the Bally MPU modules?
Maybe it's implemented but not displayed?
Clive
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