I only saw your PM today so sorry for the late reply, but apprently you do not accept PM`s so I`ll have to reply this way.
In answer to your question:
I`m really sorry but b asically I took the PCB into Maplins and got like for like replacement components but it was more that I asked them to change part for part rather than really studied the components myself or used a diagram.
I have no plans to take my RD40 apart for a while and as you probably know to get at the CB requires a hell of a faff and fiddle about.
The best I can suggest is that I know of only 2 turntables that use this same motor, which has an oddly narrow diameter / small circumference - The Ariston RD40 and the Ariston RD50.
I have done up 2 RD50`s and on both the motor and CB were the same as an RD40.
Maybe try a post on here and see if anyone knows the schematics / CB layout for the RD50? You never know someone with an RD50 may even be willing to slip the bottom their RD50 and have a look for you?
> I saw your rebuilt RD 40 photo and would like to know if you could direct me to anyone that has the drive motor schematics or replacement circuit card. Thanks for any help you can provide!