Question about Standard (CRT) Televisions

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Hey good morning guys

I got a RCA TV. It doe sn't want to turn on. There's like a clicking noise in the back of the tv. Does anybody What the problem is? Please help me.

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  • stacyb72 Apr 03, 2009

    clicking in the back of the TV. Gets louder and louder when the TV is on...and can see the screen kinda flicker when it clicks.

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  • 133 Answers

Depending on the model # most of the time it is a bad flyback transformer . If it also has the high pitch squeal the horizontal transistor is bad as well . Just a clicking noise bad flyback. Some of the originals are not available and a generic is the only replacement. A repair shop may charge between $80 to $135 to repair so shop around . Ask them if there going to use a generic as they are cheap $20 to $30 . Good luck

Posted on Mar 03, 2008

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I have the same problem-still troubleshooting...so far still not find the cause. DM1 power supply output voltages are operates correctly. Signal output of microprocessor up and down (no good) that turn on Q14105 and latch optical isolator U14102 to power the unit but both of ohmed out ok. it hard to troubleshoot the main board with power on.

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What you are hearing is the high voltage arcing a bit. This is often caused by dust buildup on the high voltage components, & is not harmful. A good cleaning with compressed air will cure it, but this is not a do it yourself job, because dangerous voltages are present inside any TV.

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Sounds like you have a shorted horizontal out put transistor and bad flyback transformer. This is a common problem in the newer RCA's. I've had serveral of them do this. The noise that you hear is the power supply telling you that it's overloaded. Stargazer

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