also, i built a mixer to use with this NES -

it mixes 4 inputs, through four volume controls, down to a single mono 1/4 inch jack. works perfectly, looks great.

a lot of people build the mixers into the NES's themselves. i wanted to do it externally so that i could not only use it for other non-nes stuff but i could also use it to put effects on individual outputs of the NES.

im loving the battery talk in this thread. this is going to be really helpful when i go to add a battery to this project.

i was planning on following the steps in this tutorial regarding batteries and replacing the power regulator the NES. i'd have to build a little video amp too, and i would probably take the audio off of the main outputs instead of the rf box.

http://www.instructables.com/id/How-to- … me-System/

As for arcing, if you ever have done much with some of the high current li-polymer batteries, during connecting and disconnecting they can arc pretty badly. I have some with nicely toasted contacts which I can show you if you don't believe me.

Current does not work this way - I'm not so sure if you know how electricity works.

I would be careful about consistently running more than 1A through the power supply even though the stock adapter provides 1.3A. The 7805 voltage regulator is the first to go on a lot of the systems I've fixed (rated to 1-1.5A typically). From what I've read the psone screen draws about 0.6A alone, I'll take a current reading of the NES later on with / without standard cart / powerpak and post back.

I wouldn't sweat it, actually. The original NES adapter provides more than enough juice to run an NES. The power ratings are quite conservative. The PSOne screen won't push it that far. I could be wrong of course, but it seems to work OK on mine. Of course, with any battery, more current is usually better, as long as you don't go so far as to increase risk of arcing. Which really would be a fairly obscenely huge battery.

  I wouldn't use the stock NES adapter for this.  It would put too much load on the PSU.  You're gonna want to have at least a 1A current for this (unless the stock NES adapter has that already...  I can't remember.)  Either way, you're going to want more current than you would if it were just the NES.  Especially for batteries.

I have done so much stuff with those little PSOne screens, they are very very cool. Just FYI, it is possible to hook up the screen to a simple 5v input, and then this can in turn be put in parallel with the NES's 5v system. That way you can just use the regular PSU and don't have to use two. As for batteries, you should know by now that the NES is unique in that it can take both AC and DC as long as it's a voltage between 5 and 10 volts. I like to hook up a 7.2V RC car battery for most projects which require portable power. They are cheap and easy to swap out. Get the kind with a wire and molex clip on the end, so you can make an adapter for the NES. Then you don't have to internally mount it.

A 2000mAh battery lasts an average of 2 hours in my NES/PSOne combo setup. If I'm only using the battery to power the screen I can run it for nearly twice as long.

there aren't tutorials for either specifically, i don't think. i'm sure other people must have done my mod and anamanaguchi's mods before but i've never seen them.

to do something like this, you only need to consider two things. 1. the video signal (and audio, if you're going to use the psone's built in speakers like i did) and 2. the power.

1. this is as simple as it could possibly get. open the psone screen up and at the bottom of the main board, you'll see two little bundles of wires. check this picture -

socket #2, wire #1 is the composite video in. all you have to do is solder that wire to the video out of the NES. i soldered it to the underside of the RF box. then i soldered socket #2, wire #4 to the ground that was right next to the video thing underneath the RF box. that's all i did to get the video signal going, so easy.

2. this is a little trickier, depending on how you want to do it. right now, my screen has a different power source than the nes. i have two power cords coming out of my nintendo. this is something i will be changing soon, so i can't really offer advice yet on having them use the same power source.

if you don't mind them using separate power sources, here's how i did it. go to radio shack and buy one of their generic ac adapters. these usually have a little switch on them that let you change how many volts they are. make sure the one you buy has a setting for 7.5 volts.

these usually have different tips you can buy, so that they can fit different devices. you're going to need to buy the power jack that you'll mount on the NES also, so it doesn't matter what size you buy of either the tip or the jack, as long as you buy the same size.

so, drill a hole in the back of the nes, screw the power jack on. solder socket #1 wires #1 and #2 to the appropriate spots on that power jack.

on my NES, i have a power button that turns the screen on and off. this is just a simple switch that is in between the power jack and socket #1 wire #1. easy.

all of the necessary components are available at any radio shack. there's usually someone there that'll be smart enough to answer questions about this kind of stuff too.

if any of this was unclear, ask more questions!

are both mods pretty easy?

is there a tut for the flip-up psone screen anywhere?

have you seen anamanaguchi's psone screen mod?

Good work!  You've inspired me.

that is freakin sweet. do mine pls lol. if you made it so it flipped up/out thatd be amazing

oh man i used to play the crap out of that tmnt game...

thanks batsly!

here's a picture of the mod i took tonight -

Looks sharp! Nicely done man.