Ilo dtv2794b no power fuse not blown power cord ok

If you hear a sqealing or buzzing sound when you plug in the TV, the most likely cause is a shortedHorizontal Output Transistor (Q405) , due to a dry10uf/25v electolytiic capacitor on secondary side of Horizontal Output Transformer. If this is the cause, there will be tell-tale scorch marks in the vicinity of the capacitor. If you do not hear any noise, then the likely result is a bad Shottkey diode, of which there are quite a few possibilities In any event, DO NOT ATTEMPT TO REPAIR ANY TELEVISION YOURSELF FOR DANGER OF ELECTRICAL SHOCK! FIGURE THAT ON AVERAGE, FOR EVERY INCH DIAGONAL OF TV, YOU WILL HAVE ABOUT 1,000 VOLTS TO CONTEND WITH. THAT MEANS THAT A 27" TV SET WILL HAVE ABOUT 27,000 VOLTS!

Bad power supply