Facing TV Problems? Ask a TV Technician.
Hello, Sorry you're having problems. Unfortunately no, you cannot use any of these sets without their respective Media Receiver boxes. The Media receiver box does more than process inputs, it also is integral to the display panel functioning and actually has error codes built in that will prevent the display from being used without it. This is the same protocol that every manufacturer that built sets with media boxes followed (Sony, Sharp, Panasonic, Pioneer, etc.). So that said the media receiver box would be needed for the monitor to be used in any way I'm afraid.
If you don't have the MR box, the only solution would be to scour eBay, and other used/pulled parts suppliers for a used one in order to use the set. I'm sorry for the bad news here and wish there were a quick fix.
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