Hmmmmm...

scherzo · Post by **scherzo** » Sun Apr 02, 2006 9:15 am

Klefmung wrote:Dang, and I was hoping for a controller port pinout too. >_< I have questions as well.
Firstly, the power and reset switches must cut something off and turn it back on, so they must have to be jumped somewhere. Where exactly would that be?

As you know, the Yobo has three boards. If you follow the traces you'll see that the unregulated current comes in on the back board, goes to the NOAC board, then to the front board with the power switch and reset. Then it returns to the NOAc board, then to 7805 on the first mentioned back board, then the regulated 5v finally goes to the NOAC board. Crazy eh?

sniper_spike · Post by **sniper_spike** » Sun Apr 02, 2006 10:02 am

Interesting, according to that you could cut it down to just one board..

SgtBowhack · Post by **SgtBowhack** » Sun Apr 02, 2006 10:55 am

Yes, provided you can supply it just 5V directly.
It's been done (it's what Ben did when he made his NES Micro).

scherzo · Post by **scherzo** » Sun Apr 02, 2006 12:07 pm

Yeah, I managed to supply the Yobo with 5v from an LDO regulator instead of the standard 7805. I posted pics of it wired together with a Hip Gear here in this topic.

Klefmung · Post by **Klefmung** » Sun Apr 02, 2006 1:18 pm

I am not getting the +5 from that one pin. >_> Oh well, I took it from the 7805 instead. I got it up and running, but now I have to do trivial things like "controls" Noone likes "controls" anyways!

SgtBowhack · Post by **SgtBowhack** » Sun Apr 02, 2006 2:00 pm

Well, if you removed any one of the boards, then the circuit is broken and all bets are off. As scherzo said, it has to go through all 3 (sometimes even a couple of times) before it reaches the main board at +5v.

scherzo · Post by **scherzo** » Sun Apr 02, 2006 5:27 pm

SgtBowhack wrote:Well, if you removed any one of the boards, then the circuit is broken and all bets are off. As scherzo said, it has to go through all 3 (sometimes even a couple of times) before it reaches the main board at +5v.

No, actually. That crazy path is for the power from the wall adapter (9v) to get to the power switch and then back to the 7805. All that's necessary for the thing to work is for the middle, NOAC board to get regulated 5v from somewhere. It has wires for everything you could need.