Sega Megadrive Corrupt Graphics fix. Hint: It’s the video ram.

This post is for those of you with a faulty Sega Megadrive (Genesis) that’s developed a fault and is now showing corrupt graphics.

The game loads, you can see the game on the screen with things moving, but the entire image is blocky and full of artifacts. The sound seems to work fine tho, so that’s a bonus.

The fault lies with the two video ram chips (or it could be one of them, I replace in both mine).

The good news is, the process is relatively easy. The not not so good news, is that you’ll need a donor board. Finding video chips for a 23 year old games console is rather difficult.

Watch the video tutorial on removing and refitting the Sega Genesis Megadrive video ram chip modules.

If you have any questions or suggestions please use the Youtube comments section. I am always keen to help or learn more from people with more expertise than myself.

Tools used in the instructional video.

Hot air station: Quick 857DW+
Soldering iron: Yihau 937D+

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