044 Backplane/Motherboard

[clffrdlsn]

Hello,I am new to the site and hoping I am posting correctly. 


I recently purchased a Gameking/IGT slant top and
while attempting to fix a coin in jam error,I plugged the I/O card harness into the wrong spot on the back plane.


I am now left with 2 empty plugins on the board,J9 and J20. I also have the harness for the buttons going to the I/O and the backplane out. Could someone please clarify which plugs ins go to J9 and J20 ? also,the J9 plug in is white plastic and the J20 is more clear...does this serve a purpose or just made this way ? Thank you in advance for any advice.

[wizeone]

J9 is for the door senet
]J20 is not used in my slant, not sure what it might have been for.

[clffrdlsn]

Hi Wizeone,Thank you for the reply.I ended up melting the I/O connectors together on my first repair attempt previous to posting here.Your reply gave me clarity and confidence to make sure I didn't mess up again.I ended up googling " J9 is for the door senet " and found some great information on this.I had tried quite a bit to find it and must have been using the wrong keywords.So Thank you very much for your reply.