E1000 vs E2000 CPU ?

[ramegoom]

Does anyone who works on the early Ballys know:

Can you use an E2000 CPU in an E1000 machine, after swapping correct EPROMs into it?

I guess it comes down to, if you have a bad CPU on an early machine that uses a separate RAM PC board (1000), can you use a known good E2000 CPU on that machine once you place the E1000 EPROM chips into the sockets of the E2000 board?

Clear as mud??

[dhellis]

My initial thought is to say no you can't because the E2000 board uses an external relay for part of the reset circuitry
and the E1000 board has a small reed relay attached on the MPU board.

Though I have always had this thought I was going to ask you if you have ever tried it but now see that you either
have and failed or have not tried and are curious if it could be done.


Perhaps though one could wire the external relay onto the power connector (pin 4 and 15) and then it might work

[ramegoom]

Well, haven't tried it yet, but I have an opportunity to fix an E1088, and since I have a few spare CPU's for the later machines, I thought I'd give it a shot. But an additional relay would be a problem, however, an external relay as you suggested might do the trick. Just don't know if I want to go there yet.

[dhellis]

I don't blame you. You could just toss it in and see if it works, then you can tell everyone that you can or can not.

On my MPU board tester the only thing I have to do when testing E2000 boards is to add that relay so that is
the basis of why I don't think it will work.

[proten]

When I got started with the E series Ballys
I was informed that they can be swapped.
I would PM Barry(Foxsslots) as he would know.

[Amachanic]

I had a E1000 with an E2000 MPU and it seemed to work fine, except it wouldn't payout one of the larger jackpot? A friend took the machine and put a E1000 back in it and it solved the problem? I know that the E1000 machines have the small relay boards mounted behind the hoppers, but those are gone from the E2000 machines..

Gary