Fading picture on Sony 48-WD 655 TV

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  • Piotr4509
    Piotrek
    • Apr 2023
    • 2
    • Polska
    #1

    Fading picture on Sony 48-WD 655 TV

    Hello everyone on the forum. Electronics is my hobby, so please be understanding. I got a Sony KDL-48WD655 TV for free, which did not turn on at all from the remote control or the "on" button, after a long search for the diagram, I reached this forum where I found a diagram and a similar case with a person from the forum. Using the hints from one thread, I started the TV by bridging the TPC 8129 source with a 10k ohm resistor. The tv turns on and off, the "+" and "-" buttons aloud also function, which is broken in this section I would like to address later because there is another problem. After a few attempts to turn it on and off, an image appeared that at first was not there at all, but appears for a moment and then slowly begins to fade. All board voltages are 1.2V. 1.8V. 3.3V. 5V. 12V and 20V. 12V is applied to the matrix. I haven't disassembled the matrix yet, but I will in my free time. Please let me know what could be the reason for this behavior and if it makes sense to deal with tv at all. I wanted to hang the TV in the gazebo because it is large and energy-saving. I am attaching a clear photo the TV starting up.
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