Test your Setup

Step 7: Test your Setup

To be sure everything works, you should hook everything up without modifying anything. Below is a picture of my setup. The battery is connected with alligator clips. This step is mainly to be sure all your stuff works fine, and that the battery can handle the mA draw.

If your batteries are more then 8.5v, then you MUST go and do step 17 before hooking your screen to your batteries. You will fry your screen if you don't!

Remove these ads by Signing Up

viper56 says: Aug 22, 2011. 5:06 AM

I want to know about these green chips in the picture??

Thank,,,,

sea34567 says: Aug 9, 2011. 9:28 PM

okay btw i got a new screen and yeah i don't wanna fry it so if i fried the screen by connecting to wires together should i be worried about the battery frying the screen and i charged it so can the 7.2 volts go up to 8.5 volts

sea34567 says: Aug 9, 2011. 9:22 PM

question i accitendly touch to wires together and fried my screen with the battery then i charged it I'm afraid to test the setup so what I'm saying is i don't wanna fry my screen again so should i buy a new battery or still use the old one

dwhitslar says: Jul 6, 2011. 7:47 PM

mine 10.8 volts 4000mAh li-ion battery from a toshiba laptop

Fn4tic says: Dec 16, 2010. 2:43 AM

after i tested the psone screen with the ps1 ac adapter (that worked) i wanted to power the screen with my 8,4V NiMH batterie, but after that the screen never worked again. what i could make wrong?

MedliDoubleStar in reply to Fn4ticMar 28, 2011. 1:30 AM

8.4 v is close to 8.5, so I think you fried your screen.

heiszer says: Jan 15, 2011. 10:34 AM

I am trying to figure out how to hook up my screen from my portable dvd player that i removed the disc reading system within and i am not sure how to hook it up to my console. they boht run off the wall power so im not worried about that just yet. please tell me how to fix my setup.

thegeniusdude says: Aug 27, 2010. 4:47 PM

a few quick questions: assuming I only need a battery for the portable screen, and I can use standard house power for the main console. should i still use such a high-cost battery, or could I go with cheaper ones? also, I am making my Dreamcast portable. I do not want to open it at all. i just want it as-is. do you know of any batteries I could use that are small enough to fit inside the casing of a Dreamcast modem (4" long, 1.75" tall, 0.75" thin) also, how would I be able to connect a DC power cord (i mean dc power, not the dreamcast power cord :P) to the battery itself? I would greatly appreciate any help!

1up (author) in reply to thegeniusdudeAug 28, 2010. 11:39 AM

If you are going to power the console from wall power, why not power the screen, too?

For the Dreamcast, you would need a PicoPSU. The Dreamcast needs multiple voltages and the PicoPSU is the best thing for the job. As for the batteries, try http://batteryspace.com. You would need to open your DC to connect the power cables, anyway.

northernmagnet in reply to 1upSep 12, 2010. 7:18 AM

isn't there a device that plugs into the male a/c cable (house plug) that runs it off battery? : \

Electro Modder says: Sep 2, 2010. 12:38 AM

Ok... I tested the voltage with a voltmeter before I hooked the battery up and the voltage was fine. Then I tested it again after I hooked it up and the voltage had dropped by about half!!!??? Is this normal or am I just being paranoid? :) Thanks.

1up (author) in reply to Electro ModderSep 2, 2010. 5:16 PM

No, that;s not normal. Either your batteries are not charged, or there's something wrong with them. (like being worn out.)

jreuse says: Aug 8, 2010. 6:56 PM

How many volts/mA is the battery that you used? And are you powering both the nes and your screen from the battery? Thanks

1up (author) in reply to jreuseAug 8, 2010. 9:20 PM

My battery didn't say how many mAh it was, but guessing from the battery life it's probably about 2300mAh, and it is 7.5v. And yes, they are both powered from the same battery.

jreuse in reply to 1upAug 8, 2010. 11:26 PM

The reason i ask is because i dont get how a 7.5v battery can supply power to both the screen and nes. You said the nes takes 5v so does that mean your screen is only drawing 2.5v? I am very confused...

1up (author) in reply to jreuseAug 9, 2010. 11:33 AM

No, no voltage does not work like that. See, the battery will always give out 7.5v. The things hooked up to it do not "take" a portion of this voltage. If I hook up the screen and NES they will be both getting 7.5v. The screen can accept 7.5v, but the NES needs five. So, I use a regulator to lower the voltage going to the NES so it does not break.

jreuse in reply to 1upAug 9, 2010. 12:56 PM

Ok thank you so much. That totally makes more sense now =)

SkipperOf says: Jul 12, 2009. 2:54 PM

I tested my NES before hand, and it worked. I took it apart, shrunk the board and tested it with the RF box still on, and it worked. I took it off, and hooked up only the audio to a TV I had when it was on, but I didn't get any audio. I didn't have the video signal hooked up yet. Should I be worried?

1up (author) in reply to SkipperOfJul 13, 2009. 1:34 PM

You're using the regulator, right? And giving the NES 5v? If you're sure you didn't damage any components while taking the RF box off, don't worry. The cartridge is probably just not loading, but you have no way of knowing because there's no video. Try building the video amp so you know if the cartridge is working. Make sure you don't put it in backwards.

LetsExplodeSomething in reply to 1upAug 10, 2009. 6:42 PM

if it takes only 5 volts couldn't you power off of a usb connection? not that would be ideal at all unless you wanted to recharge it from ur laptop on the go

1up (author) in reply to LetsExplodeSomethingAug 10, 2009. 9:48 PM

The NES takes 5v, about 300mA. You could power just the NES from USB.