With success replacing the LCD screen on my Akai S900, I thought I would try to do the same for my two Roland D-550 sound modules that both are legible, but with no back light. I could get a foil backlight for the LCD, but to me they seem rather expensive. I was able to get the LCD screen for about $10 and if successfully installed could prove better for me than having a foil. The screen on my Akai S900 is amazing now and if I could get the same look for the D-550 that would be fantastic. Right now with what I’ve learned in my research, the actual LCD installation is not the probably, electrically, rather it’s whether the size will fit well or not. Indeed the thickness of the original is about 9mm and the one I purchases is a bit thicker at 13mm. The big hang up will be whether I can fit this into the D-550 or not and if not, whether I could make room for it with some modifications. If so, then the installation should be pretty straight forward. I should get the LCD sometime next week and should then be able to install shortly thereafter. Stay tune for updates and hopefully I’ll have some good results to post. I know a few people are looking to do the same. Thanks!