So I added a new port on the Turbo Express

[Drakon]

Wait you know how to add a controller port to the nomad?!  I want that schematic!!

[Duo_R]

check it out, I haven't done a schematic yet but it is a similar concept:

http://www.pcenginefx.com/forums/index.php?topic=12124.msg240644#msg240644

[turbokon]

Should that pin 22 from hu6280 be 23??

[Duo_R]

nope it's 22, the diagram is labeled a little funny, pin 24 almost looks like it is labeled pin 25. I always recommend checking the chip, it is marked at the 40 and I count backwards.

[turbokon]

Gotta, thank:)

[Duo_R]

Here are the via points





Note my pin 26 had a little corrosion nearby so yours won't look like that. You can see the trace that connects to pin 26 if you look carefully. This makes it super easy to solder

if it is hard to see, the vias are left to right: 32, 31, 26, 25, 24, 22

[Drakon]

smeh I'd probably solder to the surface mount resistors they connect to.  Looks like one of them connections to a 0 ohm resistor haha.

[Duo_R]

For pin 26 I actually connected to the HU6280 side of the resistor and it worked great

[Duo_R]

Where do you see a 0 ohm resistor?

[turbokon]

Got it working with a duo tap. My girls are playing bomberman!!! More testing is needed though but seems to be working.

[turbokon]

The screen goes blank after five minutes of play. Had to push the onboard controller to activate it. Will have to disable that battery save feature.

[Duo_R]

Good.to.know, i wonder if just the screen times out? Need to tap a different 5v line

[Duo_R]

And congrats and glad u got to test the duo tap! Thats awesome!

[esteban]

Got it working with a duo tap. My girls are playing bomberman!!! More testing is needed though but seems to be working.

HOT DAMN! Awesome, awesome, awesome.

[turbokon]

Thanks, I"m pumped right now. The external display on the big screen also went blank.

Anyone knows where is the relay that's disable the screen?