I believe you just got the unit? If so, there is really no useful information to be gleaned from going into the service menu or finding out if you have 20 or 40 hours. You should be able to estimate the time based on days and roughly the number of hours per day it's been on.
57, i only wanted to check the hours usage just to make sure it hasn't been used previous to coming to my home. I had a friend who purchased a pioneer kuro a few years back, he checked in srvice menu and saw tv was used a good 200hrs. sold for new! Needless to say he returned it and the store made sure he was getting a new one! i did the service menu thing for my pz80 and saw for myself that it was a virgin tv.
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