AndyD421
New member
Considering most people recommended I take this route, I am now fixing the original power supply in my Defender. I've already fixed the butchered wiring, etc, but am curious if the board is safe to hook up to the game with the current voltage coming out of it.
This is specifically in reference to the power supply board. If these are too far out of spec to run the game on, let me know. Also, I still don't know what type of voltage should be going into the marquee light and the monitor... that would help.
Here is what I know so far:
Defender Power Supply:
4J2- POWER OUTPUT
Accepted Voltages posted from manual:
PIN 1: -5 VDC
PIN 2: KEY
PIN 3: +12 VDC
PIN 4: -12 VDC
PIN 5: +12 VDC
PIN 6: +12 VDC
PIN 7: GND
PIN 8: GND
PIN 9: GND
PIN 10: GND
PIN 11: N/C
PIN 12: +5 VDC
PIN 13: +5 VDC
PIN 14: +5 VDC
PIN 15: N/C
Actual Voltages from my game:
PIN 1: -4.98 VDC
PIN 2: __
PIN 3: +11.92 VDC
PIN 4: -14.80 VDC
PIN 5: +14.37 VDC
PIN 6: +14.37 VDC
PIN 7: ___
PIN 8: ___
PIN 9: ___
PIN 10: ___
PIN 11: ___
PIN 12: +5.17 VDC
PIN 13: +5.17 VDC
PIN 14: +5.17 VDC
PIN 15: N/C
4J3 - COIN DOOR POWER
Accepted Voltages posted from manual:
PIN 1: +6.3 VAC
PIN 2: +6.3 VAC
PIN 3: +27 VDC
PIN 4: N/C
PIN 5: Key
PIN 6: GND
My voltages:
PIN 1: +5.0 VAC
PIN 2: +4.78 VAC
PIN 3: +33.30 VDC
PIN 4: ___
PIN 5: ___
PIN 6: ___
I really hope someone can help me out... look forward to any and all responses.
-Andrew
This is specifically in reference to the power supply board. If these are too far out of spec to run the game on, let me know. Also, I still don't know what type of voltage should be going into the marquee light and the monitor... that would help.
Here is what I know so far:
Defender Power Supply:
4J2- POWER OUTPUT
Accepted Voltages posted from manual:
PIN 1: -5 VDC
PIN 2: KEY
PIN 3: +12 VDC
PIN 4: -12 VDC
PIN 5: +12 VDC
PIN 6: +12 VDC
PIN 7: GND
PIN 8: GND
PIN 9: GND
PIN 10: GND
PIN 11: N/C
PIN 12: +5 VDC
PIN 13: +5 VDC
PIN 14: +5 VDC
PIN 15: N/C
Actual Voltages from my game:
PIN 1: -4.98 VDC
PIN 2: __
PIN 3: +11.92 VDC
PIN 4: -14.80 VDC
PIN 5: +14.37 VDC
PIN 6: +14.37 VDC
PIN 7: ___
PIN 8: ___
PIN 9: ___
PIN 10: ___
PIN 11: ___
PIN 12: +5.17 VDC
PIN 13: +5.17 VDC
PIN 14: +5.17 VDC
PIN 15: N/C
4J3 - COIN DOOR POWER
Accepted Voltages posted from manual:
PIN 1: +6.3 VAC
PIN 2: +6.3 VAC
PIN 3: +27 VDC
PIN 4: N/C
PIN 5: Key
PIN 6: GND
My voltages:
PIN 1: +5.0 VAC
PIN 2: +4.78 VAC
PIN 3: +33.30 VDC
PIN 4: ___
PIN 5: ___
PIN 6: ___
I really hope someone can help me out... look forward to any and all responses.
-Andrew

