JVC TV no picture after power flux

Jul 5, 2018
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I have a JVC EM55FTR TV. After power problems in the building, the backlights for the screen come on. The front LED comes on but does not blink. The screen does not display anything - no start up screen, no menus, no content. I called JVC support, tried factory reset [unplug, hold power button 30 sec, plug back in] No improvement. I took the back off. No visible damage, no bulging caps, and the fuse is fine.