The tv used to take a while to turn on, making a high pitch whining sound, and eventually the tv stopped working. Will attempt to turn itself on with led blinking green as soon as i plug the power cable in. All buttons power included are inop at this time. It will then after a few seconds go solid green, but no display, no sound, and power button will not work. And a high pitch whibing from inside during the whole process from the moment power cable is plugged in and led blinks. After a few minutes it shuts itself off, led goes red. Power button will work to turn it back on at this point, and process repeats. Took it apart to find one capacitor swelled, so I replaced it with good soldering (a friend who works aerospace building circuit boards for 747's soldered it in for me.) Still does the same thing. I noticed the whining sound to be coming from a yellow component next to the large rubber coated (i believe its a capacitor says 450v if i remember right and is black rubber coated) in the center of the board. Checking power, i had 11.81-11.9 volts on all 12v pins, 6.02 to 6.06 on the 6v pins nd 4.98v on the 5v pins. All consistent, however I only show 1.3v on the 3.4v pins showing a problem at the 3.4v. Im no tv expert, but i work on volkswagen electrical for a dealership, so i know enough to do the easy parts around electrical systems. Not sure what my problem is and im hoping someone can help me out. Thanks in advance! Picture attatched shows the component whining i am speaking of, which is above the large capacitor near center of the board. (Circled in black) Again, im no expert but hey thats what this discussion is for right? Thanks again!
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