Hello Damon,
it’s a typical issue of the Toshiba Televisors…
The main issue is producing TVs, the TVs are manufacturing on the high volume lines and the MB of TV’s is designed with regards to the warranty. The warranty is for 2 years and then what? If you are lucky, your television will work for over ten years, but if you are normal person, your TV will be “out of date”. Mean, It “may” working, but, especially of the Toshiba, television will not work. It is depending on the used components and especially the dimension of these electronics components. For example, if you are designing a “long-life” device, you will use these components, which are dimensioned much more, then you will need. Typically capacitors, they are dimensioned on the max voltage, max temperature, so you will never use the max voltage, you will use much smaller voltage with the care of the PCBA. In this television, the capacitors are straining by the high temperature for a long time, also the Vpk-pk is not stable. Some times these capacitors exploded and damaged the TV, in the other way, they are only at the end of their life.
So, disassemble your TV, take care of the dust, corrosion, cracks on the tin and shorts. They are using lead-free tin, which is better for health, but it’s worse for electronics.
Be careful and thoroughly search for the issue. Then, if you will find something, post photo :)
Good luck
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Can you fixed?? I have this same problem too
par andy
I have the exact same problem. Does anyone have a fix?
par Igor
I have this same model with same problem. Email me for solution.
par Tony Stihl