Fruit Machine Chat

Hi, Just became the proud owner of my first fruit machine for the house, I had a lot of choice, but went for a "classic" looking machine (OK, the other half did her nut when I picked out a full feature monster, so I've got a casino style)

It's a late 90's MPU5 Barcrest Goldrush (Rio), came with all the keys, the manual and even stickers for the screen for stake and percentage. So far, I have cleaned the old girl up, replaced a few blown bulbs and put in a dipswitch percentage and stake key.

Couple of questions, firstly there is a problem with the feature display for "Gold Series", it doesn't light, I changed the bulbs and still dead. Is this meant to light?

Second, I have the £5 and £25 jackpot cards for the machine, is there anything in between that you can buy? It's a home toy for the kids, but with it set at 5p play and £5 win, it's not what I wanted, £25 win is too much and I was thinking £10 win would be just right?

Last question (a broad one). What are the known issues or faults with these machines, I realise mine is at least 10 years old and want to keep it tip top, because it looks superb (little use) and works fine

Most obvious answer to looking after it, and you've no idea how many people fall foul of this, is to keep the machine warm and dry. So many people put machines in an outhouse, conservatory or even shed, where the cold and damp wrecks them very quickly.

I'm an electrical/electronics engineer to trade and when I went to look at the machine, I immediately knew that with all the electromechanical stuff inside, they're not something to live in a cold, damp room. It has pride of place in our bar room.

I've given it a deep clean now, coin chutes and mech have been meticulously cleaned so that everything runs smoothly, I've been through the supplied manuals and set everything up. It even came with an A4 paper copy of information for the Rio machines, explaining the cheats and other tweaks that aren't in the A2 manual!

Still stuck with the Series feature though, doesn't work at all, but it's not coming up in the lamp test either, can this be disabled in some way, or do I have a fault on the MPU5 so that it's not driving the lamp outputs, as these don't light on self test either?