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Mine is kinda tempermental also. When it won't come on or turn off with the remote ,or gets a double image on the screen,I have to unplug for a couple of minutes and then it starts to work. Don't know why.?
Give it a try
Hello, it seems like you need to replace the power board on this unit, you can find the part by sending a request to [email protected], please make sure to include the model#, serial#, and TW#, all located on the back of the unit. You can also ask to have a technician give you a call so he can assist you a bit more on how to go about changing the power board.
Mostly likely, it is your power supply. Is it getting hot? Most of them have a thermal protection circuit which will shut them off when they get too hot. You can order a new one off Ebay for about $20 -$40 depending on what voltage and current you need.
I have pretty much the same problem. When I turnm on the set (Niko OPT-2613W) it is hit or miss whether it will work or no. Some times I get audio with no picture, sometimes the other way around. Sometimes I get sound and picture but no controls work (either the ones directly on the TV or the remote). When I turn the TV ON/OFF multiple times (switch next to the power cord) it generally reverts to working correctly until I turn it off when I'm done watching and then the process starts all over.
I consulted a TV repair shop and was advised that since it was an "off" brand they werent sure they could find the repair manual or parts. I don't want to toss it but it really isn't good the way it is. I haven't tried it as a computer monitor yet but I think it would be fine with VGA input. Unfortunately that's not what I bought it for.
usually Lcd tv rated 12volts 3 ampers
but be careful.. check the polarity of ur lcd before plugging it.... some power supply has different polarity. good luck..
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