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Pulsing noise on tv nothing else happens - Televison & Video

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What is the Brand name and Model number to your TV? Provide more details please.

Posted on Jan 03, 2013

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Posted on Jan 02, 2017

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Visio VP504 fhdtv10a - When I plug it in, it has an amber logo light and makes a click noise (like a relay). When I press the power button nothing happens.


These are problems gradually developed in TV over the years. You may have to look for any dry solder, change the capacitors that look 'puffy' and try.

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Hi, my baby monitor is making a constant pulsing noise. It's like a little surge that happens every two seconds. It almost sounds like a heart monitor at the hospital. I have had the monitor for about a...


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no remote but tv was working with front power key? unplug from ac outlet and plug back and listen for any type of indication (noise or chirp) that something energizes inside if theres nothing then suspect a power supply problem, main fuse blown, shorted low volt rectifiers other components could be at fault.

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Weird, annoying noise every so often


Is this happening on just on input?

If so... Check your connections. If you are using the component cables, make sure you haven't plugged the right audio into the red video input. it's a common mistake. I see it all the time.

If this is happening on all inputs, be sure the noise is coming from the speakers. Then replace the main board.


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Denon AVR -1905 made a loud popping noise, now doesn't stay on


The output section has smoked and requires repair. The unit is not in "protect" mode. This means that the outputs are turned off to prevent additional damage to either the amp or the speakers. Expect a repair to run from $15-$40 in parts plus the local labor rate.
Dan

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your tv needs to be repaired call a tech.the tv has a defected power supply or related circuit.good luck

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White Noise Sound


Your problem is somewhere between the tuner and video detector circuit. The signal entering your TV carries: video,red color,and blue color as well as sychronizing pulses for color and horizontal and vertical deflection ( actually vertical sync. is derived from horizontal sync.) along with burst pulses to synchronize the color. After all these, the sound is an fm signal entwined with a pilot signal for stereo audio. WHAT a mess! After the audio passes through all this, it is detected and sent to the audio processor. If any frequency has drifted away from it's value then you loose the sound. SO... your problem could be in any of the tuned circuits or in the audio processor IC (chip). Any component changing value could creat this problem. Most likely the audio processor IC. You'd need to have the set checked out by a tech to find your problem. Stargazer

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1 Answer

Repetitive dull thumping noise


You're in the UK, right? Try unplugging the set from the mains and let it sit for ten to fifteen minutes. Are your speakers built in or detached? How long has this been happening? Have there been any changes recently that coinside with the problem? Are there any other audio/video devices connected to the set? If you have other devices, does the problem exist when they're in use? The clicking noise sounds like a relay that's searching for another device or input. Check the audio settings on the menu to see if something has changed. Hope this helps.

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