So, with the mess of xmas out of the way I decided it was time to get on with learning to Disco.

I'd purchased the schematic from PSP - wow, it's over 1.5m long!  Funny the construction of the machine seems really top notch, solid mountings everything clearly labelled and seemingly well thought out, harnesses really well run, mounted and loomed up. The schematic doesn't seem up to the same level, maybe just a reflection of the times, but essentially just a hand drawing / sketch - whilst all the coils and relays have identification numbers on the machine they are not referenced on the schematic.  The number and type of contacts from a relay aren't indicated as they are with GTBs and to cap it off the wire colours don't line up with the drawing.  Apart from these details, it's perfect 

So today I stripped the pf of all plastics and rubbers. The plastics are in good shape, just one minor break which I hope to be able to glue together. A bit of nifti removed a lot of the grime and I'll have a go with magic eraser and alcohol tomorrow on some of the ball swirl.  There was no mylar on this and the pf still looks really bright. I've got new rubbers and have replace globes and cleaned up globe holders. 

I've replaced a burnt out coil, still got to find a screw to fit the new coil to test.  Cleaned all the score reel faces, they look so much brighter now, a big improvement.

So tomorrow finish cleaning the pf and reassemble. Then onto a problem where the ball count unit wont advance after the ball drains. I can manually advance it and it seems to roughly work. I think it's ether a motor contact or the ball drain switch and relay. Anyway a day of studying and playing around today should make it easier.

Some pics of progress.