Power Supply

Also has a separate power board that supplies the -5v, +12v, -12v:

Power Supply Board Parts List:

2 x Tantalum caps 33uf 25v

5 x Tantalum Caps 6.8uf 25v

4 x 4700uf 50V electrolytic axial

1 x 2N3055

1 x 2N3791

1 x 7912C -12v regulator

1 x 7812C +12v regulator

1 x 7905 -5v regulator

1 x MDA970A1 Motorola 4A 50v single wave bridge rectifier (xref to RS401L (50v), NTE5318 (200v))

2 x Diodes - 60S1 per schematic 6A 100V rectifier diodes (xref to NTE5812)

Overview pic of the entire power supply section:

Voltage regulators 7912, 7905, 7812:

Power Supply Wiring:

Triad Transformer Input:

Black w/green stripe to black a/c input (120v)

Yellow w/black stripe to black a/c input (120v)

Red w/black stripe to white a/c input (common)

Black to white a/c input (common)

Condor Wiring:

1&3 jumpered - input on 1 = white a/c input (common)

2&4 jumpered - input on 4 = black a/c input (120v)

Condor PCB:

Yellow = ground goes to connection point closest to the large capacitor

Red = +5v goes to connection point closest to +5v regulator

Here's an overview picture on the test bench - hopefully explains it along with the write up above. Note the large red wires at the bottom connected to the wire nuts are the test bench a/c 120v input normally connected in the game through the 3 pin Molex connector shown top right (black,white,yellow).

Here's a pic of the new Condor 5v power supply installed in Venture:

6/29/15 Replaced the 4x4700uf 50v axial caps on the power supply board for preventive maintenance. Here's the before pic:

And after the replacement: