Have recently purchased and have only used as tv. Sometimes even though plugged into an active outlet, can not get any green power light at the screen. A day or two later it will work ok. Sometimes after minimal use it will shut down or it will go to a mode where none of the remote will work. Unit worked good for the first couple of weeks without any of these problems. Have not used it with a pc yet and have not configured it with any supplied software as yet.
As with most Korean & Chinese manufactured products, the quality of construction in the factory can be less than desirable. We often find problems of this nature to be due to poor connections:sometimes it's as simple as the various cabling & harnesses between individual circuit boards & modules (those going to the light engine in Samsung DLP & LCD sets are notorious), but more commonly it's about the lead-free solder that the E.P.A. has mandated must be used in new electronics products for the U.S. market---lead-free solder requires higher temperatures to flow than older lead-based alloys, while the wave-soldering robotics used by these manufacturers is apparently still capable only of what they were designed to do, i.e., working with lead-based solder. Perhaps 25-30% of the problems we repair are of this nature...
I have same problem too. My monitor shut itself every 20 to 30 minutes.Only way i bring'em back on is unplug the monitor.But this is not the solution.
There is a high resistance short between the pins on the board for the channel/volume/power etc. buttons. This can be verified by ohming between the pins on the board. Clean around the pins to remove the short.
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