Some Atari game boards require oddball voltages and therefore must use the power brick and power supply board.
I know I need a rev 2 arll board. The hard part is identifying the right one on ebay since it looks like I have to go by numbers written in marker on the PCB or get the resister values to make sure its the right one.
But the power brick is just an un regulated psu.
A multitap transformer, noise filter, bridge rectifier, and big capacitor.
Bank of fuses also.
If I read the schematics correctly the AR II board is doing all the heavy lifting.
So since I'd be building the cabinet from scratch and using a crt tv with component in and my own stuff for credits lights ECT. I really just need to get 10.6v dc and 36v ac to the arii board. Then it provides the main pcb with regulated voltages.
I just don't know how many amps are required.
The rectifier is fused on the input side with a 20 amp fuse so not sure on the 10.6 v amps
But the 36v output is fused with 4 amps.
Looking hard at schematic, I just need a Power filter, 36v transformer, and some fuses for the 36ac then a buck converter for the 10.6.
Not sure if the AR II two board cares if it gets its 10.6 dc power from an unregulated source or a switching psu though.
doubt it.