I've been asking most of the questions related to my project here: https://pinside.com/pinball/forum/topic/my-james-bond-system-80-project

I thought this one might be interesting enough to others to warrant not being buried in my thread though.

After questioning why the sounds coming out of my James Bond machine sounded not very James Bond-y, I determined that it had the wrong sound PROM in it, and another member identified it as the PROM for System 1 game Roller Disco.

MarAlb was kind enough to program and ship me a new PROM, but when I tried it out yesterday it didn't work. Now it could very well be just a bad chip or failed programming, but MarAlb raised the question of if a System 1 PROM uses a different 6530 than a System 80 PROM:

"As there was a system 1 prom present before there is a chance the 6530 chip also came from a system 1 soundboard. This chip contains a rom section too and this might differ from a system 80 soundboard. It might be worth finding out if 6530 chips from system 1 and system 80 differ from each other."

Does anyone know if this is the case? Does the game PROM handle only the actual sounds, or also the behavior of the board? The James Bond manual says that the test button should only play sounds when the 2 dip switches are in opposite positions, but it plays them (differently) regardless of switch position. If the 6530 is responsible for controlling this behavior, that may answer the question.

Here's a photo of the board as I found it:

5c541ddcbf69ec0b0170215d5223fb8efc39b34d (resized).jpg

This machine appears to have had a bit of a rough life, so it wouldn't surprise me if this is the case. I think the board itself is original, and when I had it out to clean it up and replace the caps, there were a few signs of soldering on the back of it.

So my options now are to try and find the correct 6530 chip to use with the (most likely good) chip MarAlb sent me, or replace both with one of the newer daughter boards that plugs into the old location and allows you to select the sound from a variety of games?

I've been reading that link you sent, and if I can find a bit more information I may be crazy enough to try and build my own. I design hardware and do embedded systems dev for work, so this may be a fun little side project. I'm also dumb enough to put 20 hours of work into something to avoid spending $90.

I'm restoring this for a friend, so I'll see if they want to part with the 6530 once I get a working replacement. You may be in luck!

Thanks, if I get into a time crunch, buying a board is always an option, but this may be fun.
I'm looking at how pinmame emulates the 6530 now to see if that is of any help.

I found a zip with the PROMs in it (including the sound one) and it looks like a system80 6530.bin is included. I can post it if that's ok, but I'm not sure about the rules regarding sharing 37 year old game ROMs.

I get how the MIOT works, which is a pretty good solution to the problem. It's definitely the next best option to original hardware. The main issue with it is that the 6532 is only slightly easier to get than a 6530. The harder, less true to the original way to go is emulate the 6532 in a modern CPLD or FPGA, which I think people have done as it's the same chip the Atari 2600 uses.

If I can find a 6530 for a system 80 board, I'll probably do that for expediency.
Otherwise I'll dig up a 6532 and build a simplified MIOT that works for just my game. I have piles of 27256 EPROMs on hand.

The MIOT works for 16 different games, and uses dip switches connected to the 4 highest EPROM address pins to select which game you want.

On a normal board with a 6530 and a 1kx4 PROM, the PROM is mapped in at 0x400-0x7FF, so I assume that each 2k block of the 27256 contains first the 1k 6530 ROM (address 0x000-0x3FF) and then the sound data PROM (0x400-0x7FF). I haven't read the datasheet for a 6532 yet, so I may have it backwards depending on the logic used to select the external 1kx4 PROM, but there's only two options to try.

For a single game, any EPROM 2kx8 or larger would work.

I think I may have come up with a way to make this stupid thing work with parts that I have on hand. I'll report back if I'm successful. Don't hold your breath though, because if I don't get it done tomorrow, I'm not going to be able to do anything on it again for a week.

Success!
20170510_181023 (resized).jpg

Obviously this isn't anything I can leave in place, but I'm finally getting the correct sounds out of the game!

One question though - I have it in "continuous" sound mode, and it plays a melody on loop until you hit one of the targets, but then it only plays scoring sounds after that. Is this normal? Will the "continuous" sounds eventually start playing again, or only at the start of each ball?

Ok, mine sounds like the video, so I think I'm set.

I ended up just putting the 6530 ROM image on the new EPROM and using the sound PROM that MarAlb sent me. I wired the breadboard to move the new EPROM into the address space the 6530 ROM normally uses. So it would work for any flavor of 6530 or 6532 so long as you have the sound PROM. It wouldn't be hard to move the sound PROM to the new EPROM as well though, I just didn't need to in order to test.