Question about Sony FD Trinitron WEGA KV-24FS100 24" TV

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TV Doesnt work

Power the tv on and you can hear an odd humming/buzzing sound coming from the circuit board area. There is no picture and no sound on the tv. The little red indicator light does flash a few times on the front of the tv but that's it.

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Replace the flyback transformer.

Posted on Mar 03, 2009

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Was working fine last night ,went to turn it on and you can hear a buzzing by where you plug in your jacks a bee,or high pitch sound.tv has no picture or sound.only sound you hear is this buzzing



Sounds like your power supply is causing the problem. Unplug the TV wait 10 minutes, look in the back for a red button (circuit breaker) push it in. If this does not work you have a low voltage power supply fault.

Mar 04, 2016 | Televison & Video

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Humming sound


This type of sound can be generated by the back-light inverter board.

Jun 15, 2013 | Sony BRAVIA KDL-52XBR4 LCD TV

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I turn the tv on and there is a constant buzzing sound what is it?


Hello
If the picture is correct in all resepect, and only a buzzing sound only comes from its inside circuit, it will be due to a loose core fittings, on any one or two ferrite cored transformers inside the power supply sytem. There are transformeres of small and large types, both in power supply and other boards. We have to find out which transformer makes this buzz sound during working. For this, you have to open your TV, and power it ON, and listen the the sound carefully, and detect the transformer which makes this noise. After finding the exact one, this loose core contact can be fixed with the help of Super Glue or similar fast acting adhesive. Just put three or four drops of adhesive in between the core will rectify your problem.
If there is no picture at all and a buzzing sound like this is heard from your TV, the inside circuit has some short in it and has to be detected and rectified. OK>

May 01, 2011 | Polaroid FLM-323B Television

1 Answer

A buzzing noise coming from inside the tv but still buzzes when on mute but doesnt buzz when tv guide is up on the screen or when a channel is showing what time it starts


plasma tvs buzz a lot, depending on screen brightness. its probably normal but if you can hear loudly over your volume, may be a bad board or plasma panel. from behind tv, left side = y board, right side = z board, middle = power board ---- bad panel can buzz from anywhere... if you hear all parts buzzing, its probably normal plasma noise

Jun 01, 2010 | Samsung Televison & Video

1 Answer

Humming sound


Samsung states - A buzzing sound from your plasma TV is normal. It is caused by the electrical charges used to create the images on the screen. The buzzing, however, should not be so loud that you can hear it when the volume on the TV is set at normal levels.It is also important to determine the type of buzzing sound. A sound like a ground hum is completely normal. This buzzing can originate near the power cord connection or from the SMPS board position on the upper back of the TV. The buzz will be more audible as contrast increases on the screen, most notably when displaying an all white screen. If the buzzing sound is loud, you may have the Contrast set too high. Lower the contrast to reduce or eliminate the buzzing.You may also have loud buzzing if the rear of your Plasma TV is too close to a wall or other hard surface. Try moving your TV away from the wall until the buzzing is minimized. [1]
If the buzzing is at a higher frequency and resembles a crackling sound (like the sound of Velcro being pulled apart), and originates from the upper middle back of the TV, you likely have a failing SMPS board. Place a support call with Samsung to have the SMPS board replaced.FP-T5084 Have a known buzzing problem with a very simple fix.If the buzzing is coming from the left or right sides of the rear and the volume can be changed by pressing lightly on those locations, you are probably hearing the vibration of the grounding springs on the back panel. Call Samsung (or whoever) and have a technician confirm the problem. The easiest fix is to insulate the offending spring by applying some felt tape.

May 22, 2010 | Vizio P2 42 in. HD-Ready Plasma Television

1 Answer

Samsung HL-P6163W Dlp TV has a loud humming sound coming from the rear. It still has a good picture and I can turn it on and off. Very annoying


If you get a chance. Please post more details. Specially about the sound you hear in the back of tv is it like a humming or buzzing?

Mar 26, 2010 | Samsung HL-P6163W 61" TV

1 Answer

Tv won't turn on red lights blinking


You are hearing the spark gap mounted on the lamp ballast board. If you can hear that sound, that means everything in the lamp driver circuit is working except the lamp!

Get a new lamp.

michtech

Jan 31, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

2 Answers

Buzzing sound on Vizio Plasma TV


likely supply failure or shorted pannel driver. u should be able to unplug the pannel boards from the power supply. if the buzzing stops than its the pannel boards otherwise its supply.

Dec 05, 2008 | Televison & Video

2 Answers

No picture has sound, then picture comes on after a while


check for a problem with the horiz.output circuit. maybe bad solder connections or the horiz.osc.

Sep 15, 2007 | RCA F27442 27" TV

1 Answer

Buzzing sound, no picture on my Panasonic TV


You might have a short causing the set not to start. Probably in the horizontal/high voltage circuit. The buzzing sound that you're hearing is the power supply overloaded. Stargazer

Apr 22, 2007 | Panasonic CT-27G23 27" TV

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