I got a whine

[toxcrusadr]

No, I'm not whining, my TV is. It may not qualify as 'vintage' - it's a '93 model 35" Mitsu - altho these days maybe it does.

I had it fixed several years back when (according to the repair shop) a capacitor crapped out in the power supply. He said they used pretty cheap ones. I don't remember what the symptoms were, seems like it would not run at all.

Now I have a whine, sounds like 5 or 10 KHz. It's getting worse. Comes through the audio, not from the set itself so it's not something in the CRT. I can run it on an analogue output from my digital cable box, or from the remaining analogue channels still on my cable, and it's the same. I haven't tried it on just an antenna, but I don't have a convertor box so I couldn't tune anything anyway.

Just wondering if this is a sign of more bad caps - like a shunt cap to ground is open allowing noise through. I could attempt a recap of the power supply, I can solder and identify caps well enough, and can probably find the PS. I don't have a service manual or schematic. Probably a crapshoot...whaddya think?