NESp not working

gamer_ian · Post by **gamer_ian** » Thu Apr 20, 2006 8:50 am

I'm almost finished with my NESp, but when I powered it up last night, I could see the screens brightness/volume bars. All the screen would do is flicker, so I made sure all the wires were going to the right spot but it still didn't work. I would be grateful for any suggestion on what the problem could be.

Post by **Skyone** » Thu Apr 20, 2006 9:08 am

Does it work when the NES is hooked up to a TV?

Is the NES getting correct voltage?

-Skyler

gamer_ian · Post by **gamer_ian** » Thu Apr 20, 2006 9:14 am

The nes has always worked fine, and it is geting the right voltage.
(but still doesn't work right)

codeman · Post by **codeman** » Thu Apr 20, 2006 6:54 pm

are you using the regular NES or a NOAC?

gamer_ian · Post by **gamer_ian** » Thu Apr 20, 2006 7:05 pm

I'm using a regular NES

codeman · Post by **codeman** » Fri Apr 21, 2006 5:41 am

do you mean that it would flicker like the NES did when it was constantly resetting? Also, make sure that all your ground wires are connected correctly, including the video ground. And did you make the video amp circuit that you need or are you still using the RF box?

gamer_ian · Post by **gamer_ian** » Fri Apr 21, 2006 9:58 am

well I fixed the flickering it was just a loose power connection to the screen. the video still doesn't work, all i see is a dark screen. I checked the ground wires i'm pretty sure there all in the right places, and I did make the video amp circuit.

codeman · Post by **codeman** » Fri Apr 21, 2006 2:36 pm

I had gotten to a point where i had sound but no picture. I found out it was because I was generating 5v without using the screen regulator and putting the output to where the output of the 7805 on the screen was. I found out later that there are two 7805s on the screen. Are you giving power to the input terminal of one of the 7805s on the screen? I'm just guessing, give me a break here.

gamer_ian · Post by **gamer_ian** » Mon Apr 24, 2006 2:07 pm

I'm not sure i know what you mean but, i was messing around with it to try and get it to work when i look down at the screen and saw that the front top right led was glowing red i started to think it was neat, then it started smoking and I remembered it was suppost to be white. after taking a closer look i think it caught on fire some how. I removed the screen from the motherboard and ran it without the screen. i here this humming noise that is very high pitch but quite and every once in a while for a split second it will get louder and the green led on the front top left corner of the motherboard will come on.

Post by **CronoTriggerfan** » Mon Apr 24, 2006 7:14 pm

Are you using a PSOne screen? If so, what resistors are you using in your LED mod? If you're using a 10-ohm, as suggested in Ben's book, it's too weak. You actually need to have a 22-ohm resistor, or wire two 10-ohm resistors in a series. That way, your LED's won't overheat as they just did. As for the NES problem, try replacing the 72 pin connector and putting on a new one.

CTFan

gamer_ian · Post by **gamer_ian** » Tue Apr 25, 2006 9:10 am

I am using a PSOne screen and I looked at the resistor that i was using for the screen and it was a 30-ohm, so i'll try a 40-ohm. I didn't get a new 72-pin connector, justed cleaned it, because i never had a problem with it before i tore the nes apart. I'm still getting the same problem though. I also noticed that when the green led flashes the screen gets brighter too. could this be a problem with my power.

toby dawg · Post by **toby dawg** » Tue Apr 25, 2006 7:04 pm

I used a 10 ohm and it works great.... it doesn't even get hot at all!

Post by **CronoTriggerfan** » Tue Apr 25, 2006 7:18 pm

Mine was working fine for about a week or two. Then all of a sudden, my SNESp started to smoke and the hot glue around the resistor melted! Just saying, watch out. Even if it doesn't happen to you, I'd do it as a precaution if you get the chance. I'm just lucky it wasn't my YoboP, 'cause it's made of wood

!

CTFan