We purchased the Sony KP-46WT520 46" 1080i Projection TV less than 3 years ago and we have already had to replace it. This TV supports 1080i and has a very good picture for a projection TV. It also sounds very well and has every option that we ever needed including picture in picture, HDMI input and a freeze option. However about 4 months ago it started acting up and would turn off suddenly for no apparent reason. We researched the problem online and found the likely cause is either the lens needed cleaned or the thermal fuse needed replaced. So I cleaned the lens the entire inside of the TV and it still had the same problem. It kept doing this for a matter of a couple months and then one day it shut off and wouldn't turn back on. With these big projection TV's they want to charge a couple hundred dollars just to come out and look at the TV and several hundred more dollars to install a new thermal fuse. Therefore we decided to simply purchase a new TV rather than spend so much to fix this TV. We also reseached further online and it seems to be a fairly common problem with this TV. Buy Sony KP-46WT520 46-Inch Hi-Scan 1080i HD-Ready Projection TV!
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