Please post a picture of the MPU and power supply boards.
(Topic ID: 295393)
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Quoted from Switch:I included a close up of the power board where it looks like it's gotten really hot.
That is the high voltage section and will not do anything with game resets. I would start with new capacitors on the power supply and C30 on the MPU board. If the U25 RAM is already in an IC socket, I would upgrade to NVRAM since that would be an easy plug and play.
Quoted from Switch:Sounds good! The U25 Ram is still soldered into the board. That's the reason I didn't go the NVRAM route in the first place. I don't mint soldering in components, but chips scare the crap outta me
You could send the board for the NVRAM to ChrisHibler . He would even check to be sure the switch matrix in case that is an issue, but it does seem related to the RAM circuit.
Or I'm sure you could find someone local you can trust to install NVRAM.
Not sure if you pulled the power supply out yet, but you also have a row of 3 wires that are soldered directly to the back of the board connector that you will also have to deal with. You will need a crimper that crimps 0.093" pins. Also the male wafer for the board is kinda hard to remove without damaging the board, so extra care beyond even replacing the capacitors will be needed.
https://www.marcospecialties.com/pinball-parts/CKWMS
pasted_image (resized).pngNothing wrong with replacing the board, especially with the shape that this one currently is in. If you do go that route, then you do not need the 3x4 board wafer connector, which is out of stock at GPE. They do have the other parts though.
https://www.greatplainselectronics.com/proddetail.asp?prod=03-09-1126
https://www.greatplainselectronics.com/proddetail.asp?prod=02-09-2118
https://www.greatplainselectronics.com/proddetail.asp?prod=02-09-1119
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