killcrazy

Hi,

Pretty sure the ROMs I tried all supported both £5 and £25 LBO (not £25 cash) just by changing the stake/prize key setting.  In fact a lot of machines I've worked with can usually be switched between £5 or £25 jp with the same ROM set, not always, but usually. 

I'll double check and try a few more for you.  

Have you tried the ROMs you've had burned with the stake/jackpot key set to £25 LBO (rather than £25 cash)?  They might well work in this setting.  See below link for the DIP switch setting.  Doesn't require any change on the MPU as far as I'm aware.

http://www.swallowam.co.uk/pckey.php

Okay I've quickly tried 3 sets and I know what your problem is likely to be.

The 3 sets I've tried do support a £25 jackpot, but only in LBO mode (Licenced Betting Office).  Not a normal "pub" profile.  I'm guessing most (or all) of these ROM sets will be the same.  

So on your stake/jackpot key that's plugged into the MPU board - does it have DIP switches so you can adjust the stake and jackpot?  If so you need to set this to "£25 LBO" instead of "£25 Cash".  If you have a fixed key then order one that you can switch from eBay (only a few pounds).  I tried 30p stake but 25p might work too (not sure for LBO).

It's likely the ROMs you've already had burned will work in this mode.  

As I understand, LBO mode would be used in a bookmakers.  The gameplay would be more volatile and it would save up for more large streaks etc.  Someone else would be able to give a better explanation of the differences as I never knowingly played one in the wild in this mode.

If you want me to check any more (or the software revisions of each) let me know

Ah I see.  If I have some time later I'll try and load them and see if I can find what you're looking for

Luckily they were still on my cloud backup.

I actually have 11 different revisions of this so hopefully at least 1 will be what you're looking for.  I've never tested them and I don't know if ghs01 is the earliest and gsh10 the latest, or if some are duplicates (probably).  I also certainly didn't dump all these personally as I also scoured the internet for them at the time.

I don't have time atm to run them in the emulator to check but it's easy to run them in MFME to see which will accept the jackpot settings you're after though.