Arcade Collecting > Miscellaneous Arcade Talk
Am I in over my head? Repair EM pinball?
Ken Layton:
Mainly you should check for sluggish "stepping" units like the player unit and ball count unit as well as bonus units. Make sure they step up and reset quickly without hesitation. From your description it sounds like the player unit has not snapped back to 'home' or zero position thus a game cannot start and the motor keeps running. Sometimes a wire or wires can break loose from coils or switches. Check all the score reels for any broken wires.
drunkatuw:
Last night I tried removing all the score reels and I manually reset them all to 0. The scoring motor (I think that's what it's called) still continued to spin. I am worried that nothing on the back box (scoreboard) lights up, but that could just be lights. I checked the player unit and it's getting between 20V and 22V, but it doesn't seem to do anything. I'm going to check the '0' and '9' switched on all of the scoring reels, maybe that is why the scoring motor never stops and the game never gets reset.
Ken Layton:
If the reel switches are not adjusted properly the motor will continue to run as the game thinks the reels have not all been brought to zero position in order to finish resetting other units.
drunkatuw:
--- Quote from: Ken Layton on April 02, 2005, 12:48:00 pm ---If the reel switches are not adjusted properly the motor will continue to run as the game thinks the reels have not all been brought to zero position in order to finish resetting other units.
--- End quote ---
I'm trying to figure out which switches are the '9' switches and which are the '0' switches, but I'm not even sure if that will make a difference, because the reels aren't getting any power (atleast I don't think so, because there are no lights on the back box and I don't measure any voltage across the relays).
The wires are all bundled together sometimes as many as 20 together which makes it really hard to follow individual wires. Is there a good place to start on the schematic to troubleshoot? I tried starting at the power plug and I was going to trace out the lights to see why none of the lights on the backbox lit up, but unfortunately, the first light bulb I checked with the DMM, I managed to blow the fuse, so off to the hardware store I go.
drunkatuw:
In case anyone cares, I took a few pictures so you can see why I feel a little intimidated by this machine :)
Pinball machine
Inside machine
Fiance has my regular camera at his wedding shower this weekend, hope to take better pictures monday or tuesday once she gets back.
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