Author Topic: Knocker troubles  (Read 3969 times)

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Offline felixthadog

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Re: Knocker troubles
« Reply #15 on: March 25, 2009, 08:18:14 PM »
OK Matthew, no problem.

Once you've done the test Nino suggested you then need to test that voltage is getting to the coil.

Ummmmmm ...... how?  !@)

Matthew

One step at a time Mate -  ^^^

Lets check the connectors and the coil itself first.

OK, here are the results:

I switched the machine off and disconnected the coil. I then connected a 9V battery to the two terminals on the coil and the kicker fired. I then set my MM to ohms (200) and put one probe on each terminal on the coil, and it displayed 4.4 on the MM. Is that too high?  !@#

I reconnected the coil and then checked the IDC connectors (J107 and J130). They looked OK, so I pushed the wires in with a screwdriver and reseated the connectors. The Q68 thingy looked OK to me too. I set the Match level to 50% and played a few games until a Match was awarded, but the kicker did not fire.

Matthew