Baby Pac-Man MPU board


By BingoBongo

9 months ago


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  • 54 posts
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  • Latest reply 8 months ago by ForceFlow
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There are 54 posts in topic. You are on page 2 of 2.
#51 9 months ago

At a loss at this point. After working well last week and then blowing a couple of fuses I am no longer able to get the communications transmissions test screen to fire in test mode. Nothing else has changed but the next time I turned it on to start working on it, it didn't work. We replaced fuses and I have tested the solenoid diodes/resisters and all are good. We noticed last night that the new MPU board light test is only flashing an initial flash and then 5 additional flashes which is 1 or 2 short of what it is supposed to be doing with a long pause between the first 3 and the final 3. Any thoughts? My next step is going to be to put on all new connectors but want to see if anything has any thoughts first.

1 week later
#52 8 months ago

Does anyone know why the new MPU board light test does not flash the correct number of times? Is there a specific item that would lead to this?

#54 8 months ago

Bally boards use .1" pitch connectors. The links in your post are .156 pitch (much bigger). You want items from this area: https://www.greatplainselectronics.com/categories.asp?cat=70

Get the bag of 100 pins for $5

The housings of the sizes on the boards. Some of the really long connector housings are hard to find and you will need to make them up from 2 housings. To be thourough, you should get the keying plugs too.

I would recommend this crimping tool if you don't have one. amazon.com link »

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