Had power surge? When plugging in or turning on the unit I hear clicking. No picture.
Mine had the continuous blinking , and sometimes 2 blinks after trying to turn it on again. I was given the tv and after checking it out found two blown T3.15 amp glass fuses on the audio amp. T for time delay. I went to a recycle center and bought two complete chassis for my model kp53s25. I started changing the standby power supply first. Still did the same thing. I changed the high voltage board with the smaller transformer only and leaving the other larger high voltage transformer in the set. I just cut and spliced the single connecting high voltage line between the two high voltage transformers. Still had the same problem. I change the audio board and the set would work until I believe the audio board heated up or had an intermitant short and the tv would shut down. I replaced the full audio board with another and now the tv stays on and is working great. There seems to be a overheating problem with the sony audio board and i may buy a muffin fan to fit over the audio boards large heat sinks for added cooling in the rear right hand corner of the tv . Touching the heat sinks after tv has been on a while is very warm. Find a recycle center as I bought the parts I needed for 10 dollars for two complete chassis. I should have keep the color projection tubes.
My problem is rather the same but the picture tubes show a horizontal line across the top, this does not show on the screen itself but when I am looking into the tubes when I turn on the power the lines appear indicating that the tubes receive some type of high voltage but no video signal to display.
First I have checked the capacitors in the poser supply board and hove only found one bad or low capacitor of 1000 mf that read 850mf and replaced it.
I have also checked the capacitors around the vertical I.C. in the board where the stk's are and they seemed ok.
A problem I noticed was that when I changed a capacitor in the board where the flyback transformer is located, I broke a line that lead to the (h)+ plug on the board, this problem caused the picture tubes to not turn on at all when I re-connected the tv. this capacitor is near the large transformer that is not the flyback transformer.
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