Sharp 21B-S10 21" TV "sequent" Questions

Sony WEGA® KV-BM142M40 HOW TO ENTER SERVICE MODE ON Sony WEGA® KV-BM142M40 press sequently (1) display (2) 5 (3)volume+(4) power or TV when tv in standby mode

how to unlock the locked key. LG TV A lot of the main codes are 1234 or 0123 or longer in sequent (12345) give those a try...if no luck write back I will research. I,HAVE LG TV MODEL DU-27FB32C IT ...

suddenly stand by tv is go to stand by after about 10 seconds of main power on, then the stand by lamp is blinking 8 times sequently. While the power is on, all the picture and sound are normal. I ...