Hey guys, first time poster here. I'm looking to make my first portable (something similar to lovablechevy's HandyNES) and I have a million questions The first one I have is this: I bought Ben Heck's book "Hacking Video Game Consoles" and in it, he uses an original NES board to make his portable. However, I'd really like to use the NES2 board like chevy did, but I'm not sure what the differences are in the two board types. Basically, I don't want to start hacking apart a NES2 board only to find I have no idea what I'm doing. If I go by "the book" and use the NES1 board, I can pretty much follow it step-by-step but the case would have to be a lot bigger, I'd imagine. So the actual question is: What are the differences in the two boards and would using the NES2 board be super confusing to a person whose only guide and knowledge so far has come from a book based on the NES1 board? Thanks so much!
Hi ouchy! First of all, whatever board you decide to go with, I know you can make a good portable. Pretty much everyone here has started with an "I don't know what I'm doing" mentality.
For the board revisions, main differences are that NES2 is smaller, removed the 10NES authentication chip (this is a major plus!), but also removed the composite output jacks (downside). There is a way to mod the board to output composite, which you'll want to do for a portable; since lovablechevy has experience in this area, you may want to pick her brain.
System power requirements might differ as well, but I'm not entirely sure on that point. Odds are, whatever voltage goes into the system goes into a voltage regulator anyway, so I'd bet it's 5v all around. Again, someone who's dealt with a NES2 should know; I've never owned one myself.
Edit: Following the book isn't a bad idea, but that was written before this hobby really started taking off. There are so many diagrams and images available on the internet (which we're slowly in the process of compiling on our forum) that detail different board revisions so that you'll never get too lost. Even better is that as a community, we can offer help and feedback in a way that a book can't. Decide where you want to go and we'll be happy to help you get there!
Post by lovablechevy on Dec 1, 2015 12:29:43 GMT -6
i have to say, the nes2 board is much easier to work with. not nearly as much to remove/relocate. plus, it's so much smaller. even if you don't cut the board down at all, it's smaller then what you can get the original nes down to with extreme cutting.
it does require an easy and small mod to get composite out. but it's like 3 or 4 components and super easy to wire up. in fact, here is a pic of the entirety of the mod:
it only has 3 wires that go to the board - you can see it here, look at the red, blue, and black wires that go from what is pictured above to the nes2 board.
plus, you have the good cart slot of the nes2 verses the horrible one of the nes. so you wont have to modify it or buy a new cart slot or anything like that.
the nes2 runs easily off of 5v without need for a heat sink. i always pull the needed 5v off of whatever screen i'm using. i power the screen with 7.4v, as that is the most common battery combination with the batteries that i use.
study this picture:
any component that i have removed, is not needed. compare that picture to your nes2 board. if it's not in my picture, you can remove it.
if you want to cut the board down, this is the safest cut here:
cutting is only necessary if you need it smaller to fit in whatever case you're using. i have to cut it down as the nes2 board unmodified is slightly too big for the casing i use:
i honestly would always 100% of the time recommend using the nes2 board over the original. really, the ONLY downside, is the price. but, you already have one.
Post by lovablechevy on Dec 1, 2015 13:18:43 GMT -6
1 - screens are hard to recommend at the moment... what had become the norm, the backup screens off ebay, now seem to have issues with older systems. the screen scrolls. it seems to be very hit and miss these days when choosing those screens...
2 - i get all my batteries from batteryspace.com. you'll need 2 cells wired in series with a protection circuit and a smart charger.
Ok, I already have the PSOne screen so I guess I'll try using that to learn how it all works. So I would run the battery power directly to the screen's board and then run a line from there to power the NES board? Sorry if that's a dumb question, it's all a theoretical jumble in my head right now
once you got your display board cut and working or leaving it like it Original was you can put that shape on some paper and draw lines around it , and putting a nes board under it to see what size your portable will be.
keep in mind you need space for batterys, maybe some extra ports or a internal charging unit and a lot of wires.