I've just cut the cords off of one of my SNES/Sega Genisis/NES adapters, and I hooked it up to a 9V battery, hooked it into my NES, and it worked! I could really benifit from this. Do you think I could somehow hook like the PS1 screen or something like that up to the NES, and have a cool play-it-in-the-car NES? Has anyone tried this before? I know Kevtris came up with the portendo, but has anyone tried like what I'm trying?
Edit: I could hook that up to
this and I could have a NES in the car dude! I could put a fake case around the TV with the controller right underneath, and it'd be really cool! I'd have the NES on the floor, and the TV/Controller in my hands! This would be awesome! I should get this TV, and post pics of my "invention" that other people have probably thought of already. But if no one has, then cool!
Your NES may run off of a 9V battery, but it won't last more than a few minutes. If you wanted to power it for a reasonable amount of time, six AA batteries would probably work a bit better, though a portable LCD screen with composite input would suck the batteries dry in under an hour.
I wouldn't have the batteries powering the portable TV, that'd be madNES. Haha, I had to crack that corny joke. Anyways, I will see how long the 9V battery lasts. I had a brand new one. I've been using it for like 5 minutes, it didn't get hot or anything. I know that doesn't mean it won't run out, but it seemed to be working fine. I'll see though.
Quote:
I've just cut the cords off of one of my SNES/Sega Genisis/NES adapters, and I hooked it up to a 9V battery, hooked it into my NES, and it worked!
You're lucky that the NES is one of the few systems (I know of) powered by AC. If it were DC, you'd of had a 50% chance of getting the polarity wrong. I imagine the NES is quite a power hog, so you'll need some significant battery volume to power it for very long. If this is for use in a car just use a 12V to 9V adaptor.
Yeah, adaptators are really easy to do with a LM317 chip. I made one at scool.
AC is turned into DC anyway, most likely by a diode circuitry. Polarity can be bothersome or unsignificant in funtion of how the circuitry is made. If they use 4 greatz diodes so any voltage become positive, polarity is unsignificant.
Well, I did play my NES for at LEAST 25 minutes on a 9V battery. The battery still has life, so it will be fine, I think. If I'm on my way to Duluth (The nearest city with a mall, stores, and stuff like that, which is an hour and a half away), I can just get my portable battery TV, and play some NES for a little bit. And I can go to the store "GameQuest" where my brother lives, and I can test games before I buy them, if they let me take the thing into the store.
25 minues is very long when you're following courses at scool, but it is incredibly short when you're playing.
The real issues are 1. how much fuel it would take to get an alternator to generate enough power to put one hour's worth of gameplay into a car battery, 2. how much it would cost for the store to get its own d**n NES to test products with, and 3. how much you value being able to play games not supported by PocketNES on Game Boy Advance (mostly mmc2, mmc4, mmc5, and less-common mappers used by games with a lot of kana text).
Celius wrote:
Well, I did play my NES for at LEAST 25 minutes on a 9V battery. The battery still has life, so it will be fine, I think. If I'm on my way to Duluth (The nearest city with a mall, stores, and stuff like that, which is an hour and a half away), I can just get my portable battery TV, and play some NES for a little bit. And I can go to the store "GameQuest" where my brother lives, and I can test games before I buy them, if they let me take the thing into the store.
I'm surprised it lasted that long.
Anyways, when we used to go on trips, I made my NES portable, and I had a TV to go with it. I used a 7809 regulator, but on retrospect this is not needed. You could power the NES directly off of the car battery since it just has a 7805 in there to get its 5V. The 9VAC is rectified and filtered inside the console, and comes out to around 11.5V (Accounting for two diode drops in the bridge).
A car has around 14.5V on it when the engine is running, and after diode drops this is 13.3V or so... this will be fine for the NES and you shouldn't have any troubles at all.
I had a 7809 regulator I used to power the portable TV... it accepted the car voltage in and output 9V to run it. No great shakes. I had it in a plastic box with a good heatsink on it and it was fine.
I was thinking of this kind of thing, but with the SNES now. Is this possible to do with the SNES? And could it be done with 10.5 volts, because I could hook a 9V to a AA to get that, correct? Would it cause major problems to have it half a volt over what it's supposed to be?
Celius wrote:
I was thinking of this kind of thing, but with the SNES now. Is this possible to do with the SNES? And could it be done with 10.5 volts, because I could hook a 9V to a AA to get that, correct? Would it cause major problems to have it half a volt over what it's supposed to be?
You can run the SNES off of 9V just fine. It runs the input voltage through a 7805 to get the 5V that runs everything else. There might be a few analog bits that run on the input voltage, but I highly doubt it.
Blargg was talking about the NES being one of the only systems that runs off of AC. Does the SNES as well?
Hey, the SNES have the EXACT SAME power device as the NES.
Why don't you just buy one of these:
I have one, it works great.
Because that's no fun
, plus, it uses a pirate chip so isn't 100% accurate.
If you're thinking of making systems portable I suggest you stop by
http://benheck.com and
http://portablesofdoom.org
tokumaru wrote:
Why don't you just buy one of these
Hey, cool ! I'd like to have one !
gannon wrote:
Because that's no fun
, plus, it uses a pirate chip so isn't 100% accurate.
Well, the goal here is to play NES games on the road. I doubt anyone is going to do any dev'ing inside a car or a bus, so why would anyone need a 100% compatible system?
Quote:
If you're thinking of making systems portable I suggest you stop by
http://benheck.com and
http://portablesofdoom.org
There sure are some weird stuff on those pages...! I know I wouldn't feel well destroying an actual NES. Plus not everyone has the knowledge to build these things.
tokumaru wrote:
gannon wrote:
Because that's no fun
, plus, it uses a pirate chip so isn't 100% accurate.
Well, the goal here is to play NES games on the road. I doubt anyone is going to do any dev'ing inside a car or a bus, so why would anyone need a 100% compatible system?
Because some published NES games depend on quirks that the pocket famiclones don't implement correctly. Do the MMC2, MMC4, and MMC5 games run properly? What about
Bee 52 and
Micro Machines? If you're not concerned about accuracy, then get a used GBA SP, a GBA Movie Player, a cheap CF card, and the PocketNES emulator.
Bregalad wrote:
Hey, the SNES have the EXACT SAME power device as the NES.
No, the port into the SNES is alot bigger than the one into the NES. Plus the SNES plug has an extra pin type thing in the center. I just wish the SNES and the NES had a more convinient figure, like I wish the NES was a little flatter that it is. I think the expansion port makes like an extra inch or so, and it's completely useless. Do any of you keep that damn metal dust shield on the bottom of the NES's motherboard? I threw it in the trash, because when I took my NES apart, I had to remove the dust shield to get to the motherboard, and I could NOT put it back on.
The electromagnetic (RF, not dust) shielding under the NES motherboard is a real bitch to get back in that one place by the power connector. You could just take some metal cutters and snip that little bit off. I doubt the radiation with it removed would interfere with much, though.
tepples wrote:
If you're not concerned about accuracy, then get a used GBA SP, a GBA Movie Player, a cheap CF card, and the PocketNES emulator.
Still sounds much harder (and expensive) than just buying a Pokefami. I honestly haven't tried those games you mentioned, 'cause I don't have any of them. If I ever have the chance I'll try.
(All figures in United States dollars)
Pokefami: $140 from play-asia.com
Does not also play GB and GBA games
Pre-owned GBA SP: $50
GBA Movie Player: $25
256 megabyte CF card: $20
CF writer: $12
PocketNES: GPL free software
NES ROMz: ???
Also plays GB and GBA games
tepples wrote:
What about Bee 52 and Micro Machines?
Something curious happened today... I was at the place I usually buy my NES games and those exact 2 carts were there. Bought them for 10 bucks (US$) each.
I havent tested them on any of my famiclones yet, but I can tell they don't work on my NES. Well, I can only see the "Code Masters" logo forming in the middle of the screen, an then the system resets and shows that again, over and over and over. Puting the cart's switch in another position didn't work.
Both games worked perfectly on the famiclone at the place I bought them, I didn't see any gliches. I have one of the same brand at home, it's not the same model, though. I'm guessing they will work fine, as the problem seems to be lockout chip-related.
Celius wrote:
No, the port into the SNES is alot bigger than the one into the NES. Plus the SNES plug has an extra pin type thing in the center. I just wish the SNES and the NES had a more convinient figure, like I wish the NES was a little flatter that it is. I think the expansion port makes like an extra inch or so, and it's completely useless. Do any of you keep that damn metal dust shield on the bottom of the NES's motherboard? I threw it in the trash, because when I took my NES apart, I had to remove the dust shield to get to the motherboard, and I could NOT put it back on.
Maybe not the american NES and SNES, but for me, my european NES and SNES have the exact same video port and power adaptator. I use the same, and I just plug in and out the jacks when I alternate between playing my NES and my SNES.
I was thinking that. The American NES RFU and the SNES RFU are the same, but not for AV. I really wish that the power was the same as well. I actually bought an SNES/Genisis/NES adapter, and it had to cords on it, one for the NES, and one for the SNES. It would have been a handy, space-saving device, but I cut the cord off of the NES part, and used it for the 9V battery idea.
blargg wrote:
The electromagnetic (RF, not dust) shielding under the NES motherboard is a real bitch to get back in that one place by the power connector. You could just take some metal cutters and snip that little bit off. I doubt the radiation with it removed would interfere with much, though.
Just remove it and throw it away. That's what I do
I hate those damn shields. They don't do anything really other than increase the weight of the system, and keep the FCC happy.
Hm, i hooked up a 10V 1200mA battery pack to my PAL NES, once by just directly putting it to the 7805 and once by passing it through the circuitry as if it was the NES power pak but all my games run SLOW.
Any idea what's up with this? I've charged the battery extensively and it's showing a steady 10v on the multimeter..
Do they run about 20% slower than you're used to, or slower than that?
Actually they run at 100%, it was just one copy of Super Mario Bros I have (the really old one with the normal screws in the case) but it turns out it runs slow on all of my NES's..
Super Mario Brothers 3 runs nicely off battery and so do all my other games, no idea why that mario runs slow on all my NES's :\
Btw, will the battery have more power sucked from it if it runs through the power circuit rather than just hooking it up to the 7805?
joe78 wrote:
no idea why that mario runs slow on all my NES's :\
Maybe because it is a 60fps NTSC version running on a 50fps PAL system? All your systems are PAL?
The Cart says GBP on it, but yes all my systems are PAL. (The Cart internals are also PAL)
tepples wrote:
What about Bee 52 and Micro Machines?
I tried both games on the PokeFami and they indeed fail. Micro Machines runs with severe visual glitches, and Bee52 locks up on the title screen.
My dual-connector clone, the Turbo Game, runs both games just fine. Just as a real NES would. Better actually, since as I said, my NES didn't run these, both games keep resetting after one second running, no matter the position of the switch on the back of the cart.
Unfortunately I didn't try with my other clone, the Dynacom, yet. But a clone of the same brand ran both games fine on the store I bought them.
joe78 wrote:
The Cart says GBP on it, but yes all my systems are PAL. (The Cart internals are also PAL)
Does GBP stand for Great Britain PAL?
Yes most likely. It's not the Australian version though, which is labelled AUS. (only cover is different)
Btw, I just bought a NES clone so I will test it thorougly with troublesome games.