Help with transformers and voltage testing

[bozza91]

Howdy, I bought my gorgar machine about a week ago now. When I bought it, The bloke told me it needed a new transformer to run. I have looked at the transformer and it seems ok, however there is a little bit of wax dripped around it, and the far right pin (can't remember number) is hanging out over the paper surround, looks like it may have been in a socket but I don't know anything about these transformers. The little wire hooked onto the pin is still connected, as is the red and white (240v) wire going into it. So far I have got voltage readings going into the transformer fine, but coming out I can't really get anything more than 1V which is probably just interference. I can get around 5v dc at the rectifiers, and that's pretty much it. Does anyone have diagrams, photos, information on there things, I have looked at other components and I can't see anything else too wrong. I can't get the machine to turn on AT ALL. Very frustrating when you don't know enough about some components. I also can't find to much on the net because everything says the transformers rarely stuff up and when they do they cook. So..anyone who can help me very much appreciated it would be great thanks James

[Homepin]

I think it is VERY VERY VERY UNlikely that the transformer is shot. It is VERY rare.

It seems you have very little experience so I would suggest you offer someone here a carton to come and do an hours faultfinding - it would be well worth it IMO

Good luck with it.

[Strangeways]

Won't be the transformer. I suggest you read the Williams SYS 3 - 6 Guide to familiarise yourself with the game. Certainly, you should not go changing anything before understanding exactly what you are working with.

http://users.esc.net.au/~boots/Pinball_Guides/default.html

You will find the manual with schematics here

http://www.ipdb.org/machine.cgi?gid=1062

[Boots]

Won't be the transformer. I suggest you read the Williams SYS 3 - 6 Guide to familiarise yourself with the game. Certainly, you should not go changing anything before understanding exactly what you are working with.

http://users.esc.net.au/~boots/Pinball_Guides/default.html

You will find the manual with schematics here

http://www.ipdb.org/machine.cgi?gid=1062

It definitely COULD be the transformer, I wouldn't rule it out you never know.
I had the same exact problem with my uncles Trident.
Wax was dripped around the transformer and it was stuffed, only difference was when I connected it to the mains it would always blow the fuse.
I even tried wiring it for 100V and running a 240v to 100v transformer and it just sizzled.
In the end I stripped back some of the layers of paper and sure enough it was cooked.

You could try to test the primary windings with your multimeter (without the power on) to see if there is continuity, but you may have to disconnect it from the machine.