LED mod lights too dim NES

[tehuberleetmaster]

So I'm modding my NES, and iv'e swapped in the new green LED for the traditional red one (zelda theme); and then I've gone and added two new yellow LED's to illuminate the inside game through my window. I've noticed that with the two new LED's that it dims my main green one pretty significantly. So i've been wondering if I should swap out one of the resistors on the board for lesser ohms; but I don't know how much to drop it by. I've found a 220 ohm resistor that will connect directly through to the white wire that connects to the additional LED's I've added. But like I said, I don't know how much to drop the ohms by. I'm working with a fried board, so I'm not worried about ruining it. If there is anybody with this kind of technical knowledge, help would be appreciated.

[bacteria]

You're far better off powering each LED with it's own resistor to the voltage and not in series, that will remove the issue too.

As a guess, a 80 - 100 ohm resistor on each LED will be about right if running off the 5v off the 7805.

[Emt9912]

Did you ground to the 7805 or elsewhere? Also, is the 7805 after the power switch? I don't want to hook my led's to the 7805 if they will always be on unless I unplug the nes. I suppose I could always add a separate power switch but I'd rather not.