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TV will not switch on

Recently the TV began to take an increasingly long amount of time to switch on. When turning it on from standby, the picture would flicker on for a few seconds (usually quite distorted), then turn off again. The TV would gradually turn on for longer at each attempt, until eventually it stayed on. However, now it has given up completely. When switched on at the front of the unit, all that happens is a chirping noise from inside, and no picture. When it is turned off at the front of the unit, the chirping noise gradually subsides. Any ideas at all? Seems to me like it may be a power supply issue perhaps, but then again I could be completely off the mark. Thanks in advance.

Posted by Nick Henry on

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Simpson Neal

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It sounds like you may be on the right track. Also you could have a problem in your Horizontal Deflection circuit. Since you say it flickered, you may have a solder joint that was arcing. Probably in the horizontal circuit. I found a capacitor which was arcing in this circuit. I was a small disk type. NOW since it is chirping, the horizontal output transistor may have shorted placing too much of a load on your power supply. The noise you hear is the power suppply trying to start. Stargazer

Posted on Feb 04, 2007

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