This is a commercially available CN-S310D. When I checked its operation just the other day, there was a slight color distortion (the whole screen looked reddish) while watching full-segment TV. All other functions besides the TV color worked fine without any problems. The map data is from either 2012 or 2013, I believe. I'm listing this as junk, just in case. m(_ _)m The last photo is an image that recreates the TV color I saw before removing it. I remember it being about this reddish. This listing is for the main unit only. m(_ _)m