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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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TV is half dead
I had a small Sharp Tv 14 " Tv with me on vacation, and it got exposed to
humid conditions. Humidity not water directly. After a few days it would not start. I heard sound for a few seconds, but no picture, and then nothing. After heating the inside whith a hair dryer for 10 minutes i works like a dream for as long as I want to, but when I turn it off, and it becomes cold again, its back to the same problem. What could be the problem, and would it be any point in having it repaired? Knut Oslo |
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TV is half dead
On Tue, 10 Aug 2004 22:04:44 +0200, "Knut Simonsen"
wrote: I had a small Sharp Tv 14 " Tv with me on vacation, and it got exposed to humid conditions. Humidity not water directly. After a few days it would not start. I heard sound for a few seconds, but no picture, and then nothing. After heating the inside whith a hair dryer for 10 minutes i works like a dream for as long as I want to, but when I turn it off, and it becomes cold again, its back to the same problem. What could be the problem, and would it be any point in having it repaired? Knut Oslo First guess...dead/dying electrolytic capacitor, likely in the power supply, probably unrelated to your humid conditions. Tom |
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TV is half dead
First guess...dead/dying electrolytic capacitor, likely in the power
supply, probably unrelated to your humid conditions. hehe, that is what I told my wife too ( Its her old Tv ) But she insisted that it was my fault, since I was the one leaving it outside. Could a bad soulder on the capacitor be the culprit or is the fault likely to be inside the capacitor.? Knut |
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TV is half dead
On Tue, 10 Aug 2004 22:38:22 +0200, "Knut Simonsen"
wrote: First guess...dead/dying electrolytic capacitor, likely in the power supply, probably unrelated to your humid conditions. hehe, that is what I told my wife too ( Its her old Tv ) But she insisted that it was my fault, since I was the one leaving it outside. Could a bad soulder on the capacitor be the culprit or is the fault likely to be inside the capacitor.? Knut Could be one or the other...does it ever come up on its own, without the heat? I don't know what make/model it is, so I don't know whether tapping it is a good idea, but that could tell you something as well...or nothing. It's all guesswork without a visual inspection, ESRing the crucial capacitors, etc. Tom |
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