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Re: 60hz to 120hz
If you are asking if there is a way to make a 60hz tv a 120hz tv, no, there is no way to do that. The clarity is mostly dependent on the signal and the TV. For instance, if you have a 1080P television and are getting a 1080P signal (from a Blu-Ray player or HD DVD), then you should be getting a very clear picture. It will be a little smoother if the TV's refresh rate is 120hz or 4ms as opposed to the standard 60hz or 8ms. If you have a high-def satellite or cable box, you should get 1080i if the channel is broadcasting that way, but you cannot make the TV do something it was not designed to do.
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have you checked your connections and sure your getting a HD signal for the clarity . as to Darkness it may be a lamp failing and that also may be your clarity problem if its getting to the end of its life span on the bulb
It looks like the TV might have retrace lines that are cause by a defective video amplifier IC, couple of fuse resistors burnt.
You might be able to make an adjustment to the blue screen voltage by reducing it slightly to get rid of the lines.
The devices that you connect to the TV have a different output and the TV is very sensitive to the higher video outputs from the DVD or any other device that you connect using the AV inputs.
Let me know if you need more assistance.
U have a air compressor machine?Take ur tv back cover off,blown compress air into it the screen compartment,will work the best.Unplug the tv like a day before for it to used Smoke bug-bomb,but the spiders could died inside though,that the problems.After 2-3 hrs replug the tv should work with no problems.
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LED is a couple years old and so far not many complaints but they won't be around long. Plasma is much more expensive to repair but a great picture. LCD 120hz 1080p is probably the way to go if money is no object. Stay with a brand name such as Samsung, Panasonic, Sharp, stay away from Polaroid, Ilo, Dell, Westinghouse, Olevia, these are brands that have very poor customer support and parts availability. I am in the service industry and I see it everyday. Happy shopping...
Extensive analysis revealed this unit to be for 120V 60Hz regions. If you use it in a region where the mains supply is 220/240V 50Hz then it won't work. In addition, the PSU will overheat, with possible damage to other modules.
One possible solution is a 120V 60Hz inverter, else Samsung may be able to provide the correct PSU for 220/240V.