Facing TV Problems? Ask a TV Technician.
Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, have you tried unplugging the Sharp TV for an extended period of time?
And then plugging back in straight to but into a different outlet?
Then it would be an internal hardware issue. The systems diagnostics has detected a fault and is kicking in auto-protect mode.
Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter (and even perhaps a soldering iron)?