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Hello. Usually when you mention white and yellow, there should be a red also, the red and white are right and left audio and the yellow is the video. The audio should be connected to the receiver, and if the receiver has video inputs and outputs, that should be connected to the same receiver input as well, but if the receiver doesn't have video capability, the yellow should be connected to the TV video input. I hope that helps.
It appears that during the storm there may have been an electrical surge that damaged the electronics of your tv. If the tuner is working fine then the affected area (board) is the one that has the HDMI input sources.
With a digital set top box, you do not need an antenna for your TV. You need to switch the TV to whatever input you have connected the TV to. Usually the set top box is connected to the TV by an HDMI cable. Take a look at what input on your TV the cable connects to, and then set the TV to that input. It should then work fine.
Wow that's interesting, was there anybody watching your home while you were gone? There is a possibility that someone simply turned down the color level with the color control? Check that first. It's an unusual symptom. With composite video, component video or HDMI it's not usually possible to experience that defect. Since the color (chrominance signal) is usually inseparable from the luminance (black and white signal) I would check the color setting first. Other wise your set has become unable to detect that color signal... I bet it's a setting rather than a defect.
You brought up an issue that we hadn't considered. Shortly after hooking up our TV to the receiver with a composite video, our convergence which wacko. My hubby replaced the 2 ICs, but now our power button just flashes red, with no picture. Not sure if new ICs are faulty or if it's another issue. He will replace old ICs to see if problem still exists with turning on the tube. And he'll try disconnecting the video signal to see if problem exists.
Ouch.. may have to consider another tv thanks to new technology ??????
don`t know if this will work for yours but I have heard of menu coming up all by itself randomly and the fix was to remove the batteries from the cable boxes remote and the tv`s remote, partially stuck on buttons were the cause, replaced the remote end of problem, hope this helps on yours.
You may have shifted the input board a little while replaceing the IC's. Double check every plug and connector, not just by visuale inspection, but by going and removing and replacing every connector. I have had problems like this in the pasy and have learned the hard way, everything is not as it looks. Good Luck