Well after a fair break from this project, I have decided to get into it again.

Purchased a new set of gold plated wireforms from MrPinball - they look fantastic

I have now started wiring the switch matrix.  Again - it looks and seems a little overwhelming at first with a huge tangle of wires from the NBAFB wiring harness, however is not too bad - i have just been wiring a row or column or two when i find a spare few minutes of an evening.

The main thing is to refer to the switch matrix in the manual, and start on one row or column and progress through it and make sure all switches are wiring correctly, making sure diode orientation is right.



Opto switches need to go the ther opto board first, so there is another page in the manual that shows this - for example - wiring for switch 31 (trough eject opto) is a white/brown wire, so you can see below i need to go to plug J3 on the opto controller board, and pin 12 (J3-12).  After that, the individual wires for the opto come from other plugs on that board - i am leaving those ones until last.



Another challenge has been since i ordered parts in many stages, there are always things i forgot or missed out. For example - went to wire the catapult switch, so built the mechanism, and then realised i don't have a switch - hopefully i can hunt around, otherwise will have to order one


Another fun part is working out where switch wires from ramps might go - many others who have done this conversion have copied an existing machine, unfortunately i don't have that luxury, so i out the ramps on, and guess where a logical spot for the switch wires to drop through the playfield might be.


I am not intending for my wiring harness to be in the same position as the original - i am just running it where i see fit and what i consider to be logical....hopefully i don't come unstuck!