TV MODEL: AV-K21PX PROBLEM: TV HAS NO SOUND. THE SPEAKER ON/OFF SETTING IS MISSING IN MENU. OTHER SOUND SETTINGS AND OTHER MENU'S ARE ALSO MISSING. TECHNICIAN SAID THAT PROGRAMS MAY HAVE BEEN DELETED BY THE USE OF UNIVERSAL REMOTE CONTROL AND THAT I NEED THE ORIGINAL REMOTE CONTROL FOR THE TV MODEL. I HAVE RECENTLY FOUND THE ORIGINAL RC BUT I DON'T KNOW HOW TO BRING BACK THE TV SPEAKER SETTING.

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