Lightning strikes on screen and takes awhile to warm up then fine
Hey hows it going im having a problem with my tv...the picture was scrambled in morning and taking awhile to warm up then fine,but it has little lightning bolts every now and then ,,,is this an easy fix??? I really like the tv,,,,and recently it is getting worse please help,,,B.
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It seems that your unit has some sort of Thermal fault, either in the main circuitry or the Power Supply Unit, PSU. In all probability it WILL get worse and fail completely.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done.
Open the back and take a look at the saw tooth filter cap. It's the largest cap you'll encounter in the PS. Just follow the electrical cord onto the board and look for a VERY large electrolytic cap in that area. Usually they bow at the top on a strike like that. Replacing the cap might restore the unit.
If not do you have an esr meter?
That is the exact problem I am currently having with my toshiba 50 in. I did some reading and it sounds like there is a temperature drift across one of the capacitors on the board and it takes longer and longer to warm up. Havent fixed it yet...
Most likely cause would be a loose solder connection that expands as the set warms up until it no longer makes a connection. You may get the blue to come and go by hitting the side of the cabinet after the set is warmed up awhile. (don't hurt your hand doing this, and don't keep doing it to "fix" the set. The connection will have to be located and repaired). Otherwise, there could be a component going bad, including the blue picture tube.