(Topic ID: 263683)

Doctor Who - Mini Playfield Testing issue

By Xantari

4 years ago



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#2 4 years ago

The plug associated with those switches is j206 so you could try and reseat the plug. The wires are violet and green so you could inspect them for any signs. Could you go into switch edge test and post a pic of the switch matrix. Also you could do a jumper test on the switch matrix to see if it is on the board or on the playfield.

#5 4 years ago

On the coin door there is some buttons to go into credits and diagnostics. So hit begin test and go to main menu scroll over till main menu test. Then enter switch edge test shows up enter again to see switch matrix.

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#6 4 years ago
Quoted from Xantari:

I'm also ordering a 10 opto board and a 5 bank opto board as a precaution. I'm guessing if I replace both those boards there should be zero issues. Sort of the sledgehammer approach but i'm not able to repair boards myself.

Throwing parts at it could help but gets costly and always doesn’t fix the problem. This could be as simple as something touching something it’s not suppose to or a bad diode on a switch ,a broken wire. I could go on forever cause there is so much to learn.

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