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/diy/ - Do It Yourself

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589983 No.589983 [Reply] [Original]

quick electrical circuit question, /diy/:

I want to mod my NES. It'll be a small procedure consisting of adding 12v lights to the case. Pretty much it. Maybe a motor to open the door, I'm not sure how intense I want to get.

My question: Can I just "plug into" the power that's already coming into the system or will that take away from NES as it plays? I tried adding a couple lights next to the screen of my old original gameboy by connecting to the batteries and it pulled too much from the system and wouldn't play. Thanks.

>> No.589988

NES runs on 9v

>> No.589997

runs on ac not DC last time I hooked up the adapter. must've been 5 years ago

>> No.589999

>>589997
Uhn, care to provide any examples of ICs that run on AC? I doubt they exist in a goddamn computer.

>> No.590000

You can wire in a second regulator between the rectifier network and the built in 7805 on the motherboard, and take power from here. Look up a schematic to familiarise yourself with the power supply.

If you use an RC servo to actuate the lid you will stay well under 5v, even small gearhead motors that use 3VDC motors will be good considering the light load the lid presents. LED's will be next to no load as far as everything is concerned if you are careful to select low current types, but of course, simulate the load while the unit is on and running a game before you commence your build. Last thing you need is a brown out while you're trying to stomp bowser into submission.

>> No.590001

>>589997
the NES has an internal rectifier, it can run on either AC or DC wall warts

>> No.590003

>>589999
NES uses a 9VAC adapter that is converted to DC internally. Most older consoles and a lot of audio gear use AC power bricks as it was hard to build a regulated PSU into a wallwart sized form factor back in the day, plus it keeps all the noisy circuitry which could interfere with peoples shit internal. Remember, this gear was designed to be around TV sets, and audio gear is designed to be around.. well, audio gear. Shielding can be a lot beefier if its internal.

Maybe you should go learn up on low voltage power supply and conversion before you go trying to call other people out like you know better than they do.

>>590000
Nah, NES glitches out hard if you try to run DC, the voltage drop of the diodes in the rectifier section kills the crab.

>> No.590004

>>590003
oops, meant to reply to >>590001, not >>590000

>> No.590005

>>590003
>implying I didn't know about internal PSUs
Perhaps you should take your own advice.

>> No.590006

>>590005
so lets be clear. even though you "know" about AC/DC conversion, regulation etc, you *still* had to make a post implying the dude had said something stupid, as opposed to applying your "knowledge" and coming to the reasonable conclusion that it has a regulated supply onboard?

that guy was wrong. you're not an idiot, you're just a shit-tier troll. GTFO.

>> No.590008

>>590006
Jesus Christ. What kind of crab crawled up your ass?

The dude may have just worded it wrong, but it's simy false to say that it runs off of AC. Unless you're counting semantics, then anything supplied by the mains is technically running off of AC.

The only troll here is you.

>> No.590009
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590009

>>590006
Couldn't have said it better myself.

I should also mention OP, if you plan on using a gearhead motor, stall it (clamp/prevent the shaft from turning) during your load testing. DC motors draw maximum load when stalled, it's worth testing at all levels of power consumption to make sure the unit does not nosedive if something unexpected happens.

>> No.590010
File: 4 KB, 225x225, images.jpg [View same] [iqdb] [saucenao] [google]
590010

ITT

Op is a 12 year old ricer faggot that wants to devalue his already worthless NES

>> No.590012

Man. /diy/ just went to shit. Did /v/ drop by or something?

>> No.590020

There are two mods worth doing on an NES.

1) Disable the 10NES chip.
2) Enable stereo sound.

Why would you want to do anything else?

>> No.590057

>>590008
>anything supplied by the mains is technically running off of AC.
well no shit.


>the NES has an internal rectifier, it can run on either AC or DC wall warts
>>NES uses a 9VAC adapter that is converted to DC internally

thats exactly what he said.

>> No.590140

>>590020
What is the 10NES chip?

>> No.590143

>>590140
isn't it the 80s version of drm. Chip checks a chip on the cart to verify its legit and an official Nintendo cart.

>> No.590221

despite being something dumb, it's cool they could manage that sort of thing back then

>> No.590249

>>590020
Replacing the pin connector is another good one, but not really a mod I guess.

>> No.590258

>>590249
That is a good one. Instead of replacing it i jus bend the tip of a safety pin over and bend the pins out. Good as new.

>> No.590263

>>589983
just get an emulator.
dont mod your nes. it'll be worth alot someday.

>> No.590311

>>590020
there's also the NESRGB mod that allows you to get a much better video signal out of it, but that requires either a $200 part from a Playchoice-10 arcade system or a $100 PCB with a FPGA on it.

>> No.590460

As a tribute to /diy/ I'm going to 3D print a PCB to add an HDMI port to my NES, and then mod the case to look like a shipping crate. I'll cover it in tiny krabs that light up with Arduino-controlled LEDs.

Then I will travel the world in my airship to show off my masterpiece.

>> No.590543

>>589999
>>590000
nice quads ;)

>> No.590548

>>590263
with 62 million sold worldwide, i doubt it. fun fact. they were $300 when first released. now they're $10 at your local swap meet.

>> No.590550

>>590263
>be worth a lot.
>some day.

wont the cpu, rom and ram start corrupting before it reaches antique age?

>> No.590554

>>590550
The oldest ones probably used mask roms so they should be ok even after the century required to make it worth something.

>> No.590870

>>590263
maybe i'll get a different one to work with and keep my original one as is. i agree that they won't be worth much more than they are today, but it'd be nice to keep my original one for as long as possible.

>> No.591141

If anything, a well-done mod could make your NES worth more. Somebody who wants to play classic games might be willing to pay slightly more than the $10 the original is worth for a system that works better.

>> No.591171

>>591141
are you suggesting he overclocks his snes? you realize the entire library of roms is available somewhere in a series of tubes that takes a mere few minutes to aquire? and that USB snes controllers are available from ebay for less than ten dollars?

>> No.591377

>>590548
>now they're $10 at your local swap meet.
its not 1999 anymore.