Zinfer
Well-known member
Well, the Defender boards are running like champs now. Running a Bob Roberts Defender switching power supply. But my problems stem from the Coin-door ground as well as no lamps. I got this link the other day which I checked out
http://www.arcadesolution.com/ground.html
I ran a hybrid of the two solutions and you can see the results of that on www.zinfer.com/defender.htm.
Last night I cleaned the bezel and put everything back and found I lost ground again.(Something else failed on the old PS) Well, I pulled the old PS altogether and ran a ground jumper from the Switching PS to the orange/black line at pin6 of the connector that normally attaches to 4J3 that leads to the coin-door. The game now works, coins-up and plays. However no +6v to the lamps and no +27v to the coin lockouts. (I don't understand the two +6.3v lines at the connector to 4J3, when I jumper a ground to the white/yellow at pin2 it lights the lamps)(the way this cabinet appears to be wired-the white/yellow goes to the ground and the yellow goes to the voltage of the lamp)
I suppose the next step would be to run a Bob Roberts Deluxe Defender rebuild kit to repair this old PS. I can't even use it as a ground. But that then brings pause to the madness in that that's not why i bought a switching ps only to rebuild the old Defender PS.
Can I run a +5v line from the switcher to the coin lamps? And exactly what do the coin-lockout mechanisms do? And didn't defender have any kind of coin counters?
Is my thinking way off or confused on this or am I very close?
http://www.arcadesolution.com/ground.html
I ran a hybrid of the two solutions and you can see the results of that on www.zinfer.com/defender.htm.
Last night I cleaned the bezel and put everything back and found I lost ground again.(Something else failed on the old PS) Well, I pulled the old PS altogether and ran a ground jumper from the Switching PS to the orange/black line at pin6 of the connector that normally attaches to 4J3 that leads to the coin-door. The game now works, coins-up and plays. However no +6v to the lamps and no +27v to the coin lockouts. (I don't understand the two +6.3v lines at the connector to 4J3, when I jumper a ground to the white/yellow at pin2 it lights the lamps)(the way this cabinet appears to be wired-the white/yellow goes to the ground and the yellow goes to the voltage of the lamp)
I suppose the next step would be to run a Bob Roberts Deluxe Defender rebuild kit to repair this old PS. I can't even use it as a ground. But that then brings pause to the madness in that that's not why i bought a switching ps only to rebuild the old Defender PS.
Can I run a +5v line from the switcher to the coin lamps? And exactly what do the coin-lockout mechanisms do? And didn't defender have any kind of coin counters?
Is my thinking way off or confused on this or am I very close?
