TV seems stuck on HDMI2 mode. It cannot be switched, the remote will not respond, nor can I get the Xfinity remote to accept any of the LG codes. I cannot adjust volume manually of via the remote. Changed remote batteries. Can watch TV via the Xfinity box, but none of the TV functions work.
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
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Thanks for the great/quick response!!
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