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So I recently installed an RGBbb kit in my DMG. I decided after a week that I didn't like green and would prefer white. I opened it up and soldered all three black wires (my screen had three black wires and one red) to the negative terminal of the capacitor that sits under the screen. When I reassembled and turned it on my screen was red, nothing was showing on it, and I wasn't getting a proper tone from the DMG when it turned on. I bugged out and thought that the ribbon cable was messed up... Anyway. Wound up desoldering the red wire and my screen came back and had a lovely teal color. I decided to quit while I was ahead, but I am left with one issue.

Now my backlight will flicker intermittently. Sometimes it is the perfect teal color, sometimes it is just blue and other times it will flash green. It seems to be triggered when there is a lot going on graphically on the screen, but I might just be forcing myself to see a correlation. Does anyone have an idea on how to fix this? Should I move the red wire (+) to somewhere else to get a better power flow or should I put a resistor in somewhere? Thanks for sharing.

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Cleveland, OH

Are you using the resistors? You need a 220ohm resistor for the black wire for red and a 150 ohm for blue and green each. Also make sure that the exposed wires connected to the backlight aren't touching each other. They can move around a bit and it has caused problems like this before.

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Oh dang. I have no resistors at all. I was following these directions http://images.kitsch-bent.com/documenta … _ver2.pdf. Thanks for the tip! I'm pretty sure I have some 150ohm resistors around the shop. I'll give it a shot tonight. I trimmed the unused color wire at that screen, so I doubt I'm having jangly wire issues. Thank you. I'll report back my results.

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Michigan

Yeah, limit that current quick! Don't want to burn out your LEDs.
If you don't have 150's you can always add two 330's in parallel since they are quite common to get 165ohms. Since you used the term "shop" I assume you knew that though. tongue