Quoted from Rickj427:Thank you for the replies! After further inspection, none of the pins look to be burnt. It also looks like only the 2nd and 4th pins are being used with the plug in question and the last 3 pins have a separate plug (still plugged-in in the picture). Do you know if J120 only uses 5 pins with 2 plugs? The plug that’s still connected looks like it came that way from the factory, but I’m not entirely sure. Is there any information I can find to show what each pin connects to and what the original plug looked like? Thank you!
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Thats not normal - it is a hasty repair from someone that didn't have the parts to do it correctly. Looks like they cut off the burned/melted part of the original 11 pin IDC connector and re-used a 5 pin connector they had laying around.
Proper repair would be to replace the entire IDC connector with a new 11 pin IDC connector https://www.marcospecialties.com/pinball-parts/5792-10848-11
Or better yet a Molex-style crimp-on connector:
Housing - https://www.greatplainselectronics.com/proddetail.asp?prod=CS156-11-LR
Pins - https://www.greatplainselectronics.com/proddetail.asp?prod=08-52-0113&cat=81
Crimp tool - https://www.amazon.com/gp/product/B007JLN93S/ref=oh_aui_search_asin_title
West Chicago, IL
