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On mute there is a clicking noise, regardless on what input it is on. All cables were removed and by itself, the TV made the clicking noise at no volume and at mute

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Probable power supply failure.

Posted on Mar 13, 2011

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Posted on Jan 02, 2017

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1 Answer

Turning off and on loud noise


Check and replace damaged component/s at its 'Mute' circuit. Contact any service technician. Gopakumar Gopalan Google

Apr 01, 2014 | Televison & Video

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Hi there I have had the Tv for 5 years and it's


I would first check any of your inputs (i.e. cable, satellite, DVD player, ect...). If you hear this buzzing sound regardless of what input you are using, then it has to be the TV. If it's the TV causing it, audio is produced on the main board or A board named by Panasonic. It is the board that has the A/V inputs on it (cable, HDMI, component). This model has 2 different main boards it could use either TNPH0721ACS or TNPH0721ATS. As a TV repair technician, I often use Tri-State Module and would recommend them for parts. If you don't know which board you need, their customer service is helpful. I hope that helps.

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Humming or squealing noise when tv is turned on (model 32LG30)


Be sure you have installed the stand scresw weather or not you are using the stand.
The back panel can vibrate without the screws.

Other sources of a hum are the coils on the power supply.
The power supply would have to be replaced to solve the issue.

Jan 19, 2010 | LG 32LG30 32 in. LCD HDTV

1 Answer

My lcd tv makes a humming noise


Try removing all cables going to the TV except the power cord. Power on the TV and press mute. If you have any unwanted noise, then you have a defective TV and since it is new, you should get an exchange. If there is no noise with the A/V cables removed, then you might have hooked the source (cable box/DVD Player) into the wrong inputs of the TV.

Mar 14, 2009 | LG 42LG30 42 in. LCD HDTV

1 Answer

42LG50 TV - Intermittant sound problems with blu-ray HDMI input


You say this doesn't happen on regular cable or when playing a regular DVD. Hmm. Is this Blu-Ray player connected by simplink? HDMI is a bi-directional format cable, so  there are cases in setups where your tv can send commands to your blu-ray player and vice versa. It could be a problem with your blu-ray player that it is sending for some odd reason a mute command to your tv. Or is processing a command that your TV interprets to be a mute command when playing blu-rays. Because if it was the TV itself chances are you'd see this when watching a normal DVD or on cable as well. Since you say you're not, it leads me to believe the issue lies with the blu-ray player itself. 

Feb 15, 2009 | LG 42LG50 42 in. LCD HDTV

1 Answer

19 in blue screen only sound works great


blue screen is the noise mute screen. however the audio is not getting muted and hence the buzzing....meaning the tuner on the TV is not getting locked on to the station/frequency

1. check your antenna if you are using one. Autotune
OR
2. Reconnect coax from the cable box to Tv and autotune.
OR
3.Use the Video out from the cable box and connect it to one of the video inputs on the TV. Switch your Tv to that component. Use the cable box to change channels (Best case scenerio)

Feb 28, 2008 | Westinghouse SK-26H240S Television

2 Answers

Cable connection generating static on screen & noise


Hi, it sounds like ya most probably gonna haveta resolder the Cable Connection Socket internally.. they often fracture, OR perhaps it is the Actual Cable Connection Plug itself?.. maybe you need to remake this input connection? Indeed it sounds as if the Earth Shielding is making bad contact...

Sep 04, 2007 | Toshiba CF36G40 36" TV

1 Answer

Clicking Noise, Jumpy Sound, No Picture


The SMPS (switch mode power supply) is a bit tricky in this unit. Failures in the SMPS can give false impressions of what's actually happening with regard to the symptoms. You'll need to ESR the caps in the SMPS first. C525 250v/10uf is a good place to start. It sounds like the B+ voltages are present by the noise you're describing and that would indicate that the regulator circuit is probably okay. Next I'd check things like the HOT (horizontal output transistor) for short. NOTE: If you don't have an ESR meter the job is nearly impossible. Electrolytic caps don't always show any outward signs of damage. Only by checking their equivelent series resistance are you able to determine if a lytic is the culprit.

May 26, 2007 | Apex Digital PF3230 32" TV

1 Answer

Tv problem


Your TV is telling you that the cable, antenna, or another input has no signal coming into it. When there is no signal, the set mutes itself to a blue screen to avoid your seeing "snow" on the screen. You need to check your connections. IF all are O.K., then your problem must be in the tuner or A-V input. Stargazer

Dec 17, 2006 | Durabrand DU1901 TV

1 Answer

SanyoDS25390 Tv good picture buzzing noise


What are you using as a source? If its a cable/satallite box, double check that first. If its a video input or a scart input, swap out the cables. If it still there you could have an input problem or a filter capacitor going bad. Does the hum get louder with sound? If it does it is an input source and or cables. Good luck Ps please dont forget to rate this thread.

Nov 25, 2006 | Sanyo DS25390 TV

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