"Don't throw yours out until you read this!"4.5 starson by envisionelec
Pros: Great picture, good sound. The five band adjustable sound EQ is very nice.
Cons: Most of these televisions do not work properly. To date, it seems no one has figured out the problem. Until now...
Summary: BUT I HAVE FIXED THE PROBLEM. You see, the video processor is mounted under a shield "can" on the mainboard. It gets very hot during normal operation and will cause the set to shut down, squeal through the speakers, not turn on after a few hours and so forth.
All of this can be mitigated by removing the shield can (shhh, don't tell the FCC!) and installing a small 12VDC fan to the heatsink. I used self-drilling screws, taking care to remove all aluminum bits with a few blasts of compressed air. #6 screws fit perfectly between the fins on the heatsink. 12V is available on the main board (it is actually labeled on the power supply). Note that the 12V drops to 11.4V when the set is turned "off", so the fan runs continuously. If you buy a quiet ball bearing type you will likely never hear it running. If it's still too loud, install a 10 ohm 2W resistor inline with the positive lead of the fan. It will run more slowly, but still move adequate air. Cover the resistor in heat shrink tubing (and shrink it) to avoid shorts to the mainboard.