TV on and while watching "signal no found" appeared then a loud bang (sounded like a shot gun) sounded and the TV went out. Turning the TV on, the light flashes and makes a buzzing sound. Anyone have any idea what may have blown in this 2-3 years young TV?
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Re: RCA 55" HDTV
Sometimes a part can go shorted, and an over voltage occures somewheres thus causing another part to blow. This can be anywhere from in the power supply to any of the other boards.
The set would have to be serviced to determine the cause and what was damaged. Most likely there will be the need to change some boards. Most of the service is done by a combination of board replacement and some component replacement depending on the exact type of fault.
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This TV if the model # is D52W20 ,`Then it is Projection and has 3 Tubes Red / Green / Blue
these tubes Cost over $450.00 each problem will be in the Deflection Board/ it will be the bottom left hand side board that has the FBT flyback Transfomer on it.
Most common repair is 3 capaciotrs on the deflection board CP150 2200uf 16v use 25v, CP114,CP120 220uf 35v replace all 3 caps.
ok sound on the rca itc222 chasis comes ofd one curcit board. This board is called the small signal board. but before we get this replaced we have to elemate a few things. one check you audio setings and make sure the amplifer is set to internal. also you speakers could have blown. and the connectors to speaker unlikely be loose. If these items are elemanted then the small signal board. a item that only technicians can replace. they have special computer interface they use to download data from the old to a new board when they replace it
no really, I am just a smart a$$ --- but the loud pop sounds like it may have been one of the capacitors in the power supply board. check for a POPPED cap (rare) and if there is one, test the components in the related circuit - as SOMETHING had to happen to make a cap fail like that - maybe a voltage regulator? give it a look..
there should be 3 sets of video rca jacks on tv or receiver they might have put them on the wrong rca jack in which they just need to be moved over
usually the 3rd set of rca jacks are component jacks not for tv or video but for low output signals say like cameras and only one set of rca's can be used at a time svg on one of them rca's will over power the vid's. so have no picture
You need a audio cable for sound. HDMI cable is only for picture. I use the comp 1 plugs myself, better picture. I found with my TV that the HDMI cable is only good if you have a digital box for it. You can also use the plug to hook your computer to off your graphics card and watch downloaded movies on.