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RBION Idol Sensor Issue

Wiredworm

Wiredworm

Registered
10 Years
Joined
Apr 7, 2013
Messages
2,377
Location
Grimsby
Hi,

I'm at a friends house and their RBION has a strange issue where the idol sensor keeps triggering when the balls nowhere near it, resulting in the score incrementing and the audio clip playing over and over again.

Any clues on where to start looking for the problem please?

Thanks

Pete
 
Thanks for the suggestion.

This is my first experience of a table with Optos as my own table is a Data East which doesn't use them. What's the preferred method for cleaning them please? :-)
 
Pretty sure it's an opto - there's a red light being emitted from a pad on the playfield and i'm pretty sure there's a receiver directly above it. There's also a magnet in that area of the playfield.

Strangely we had the glass out to check why one of the spots wasn't working (simply a missing bulb) and once we put it all back together the problem didn't seem to be occuring. It's not a huge issue and the table is still playable; but he'd like to get to the bottom of it at some point.
 
Sounds like a Eddie sensor,does it look like a circuit board with an led on it and what looks like a small pot on it
 
Couldn't see - but he had some printed schematics from the manual and from what I can determine there's a single PCB which all the optos go back to. There's another at the top of the playfield near the shrunken head.

I'll see if I can dig out the relevent manual pages for it.
 
I've heard that ambient light can trigger opto's - does it happen when the lights in the room etc are switched off?
 
He's using several standard lamps around the room - I suspect in a bid to prevent reflections. So you could well be onto something there.

So far hes' done nothing to the machines and he said he wants to clean the playfield up. That being the case he's going to need to do a full strip down so i've just suggested that he clean the optos when he does that. For now the game is pretty much playable.

Thanks for the comments guys.
 
reseat the optos on the opto board

the opto switch is perrmanently made,and when the pinball is over it,this breaks the light signal thus trigering as a switch hit,if there is a bad joiing or connection,this could cause this.
They are visible to see(red)and is quite cheap to replace

poi
 
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