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I think they have gotten good at designing things so they are barely capable of performing the task.

Over the years, I noticed that CRT TVs and monitors are very sensitive to having the airflow impeded. Even just setting a TV in an entertainment center that has only a few inches around and above, or setting a doily on the TV that partly blocks the air slots are enough to cause lots of signs of overheating.

Sony TVs, while otherwise great TVs, seemed to be especially sensitive to cooking capacitors, although all were subject to this problem. Shrinking vertical? Bad caps. Whining audio? Bad caps. I fixed quite a few Sony Multisync monitors where the only real problem was bad solder and a few bad capacitors.

For quite a few years as things were in process of switching to mixed DIP and SMD, bad solder was a real problem. I think it was RCA that we saw a -lot- of TVs never make it out of the showroom. As soon as they'd been in for three warrantee repairs, they got replaced by RCA. We got quite a few sets right from the local distributor. The other techs would try very hard to find the one solder joint that would make it work, so of course they'd come back in a short time and they could bill for another warrantee repair.

That's not me - I'd resolder 100 or more solder joints and mine would not come back.

Steve Greenfield AE7HD