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It sounds like one of those sets where the HOT shorts and then shorts the two power supply switching transistors, and then a .1 ohm fusible resistor opens. This chain reaction is often caused by loose connections in the horizontal circuit; but, can also be caused by a bad flyback, etc. I've fixed a lot of newer ('90's) Sony's where all I did was resolder bad connections in the horizontal circuit and replace the blown parts I mentioned. I did, however, just trash a 36" Sony that I spend $20 something on parts just to watch them blow up upon power up. I couldn't determine if the flyback was bad or not and didn't want to spend $75 more just to watch more parts blow up. Sometimes, you just have to draw the line. I will tell you that you'll be better off to use Sony original parts if possible. Several places sell the whole parts kit for around $10. These parts are usually Chinese knockoffs or factory rejects and there is a good chance they'll bite you in the butt.
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