Question about Vizio E420VL 42 in. HD-Ready LCD TV

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SOUND WENT OUT.WHILE WATCHING CHECK MUTE . CHECKED SOUND SETTING.TURNED ON AND OFF. CHANGED CHANNELS. I HAVE REGISTRERD ON LINE WHEN BOUGHT 1 1/2 MONTHS AGO.

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  • don_gpinksto Mar 19, 2011

    ITS LATE LET YOU KNOW TOMMOROW.

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No sound on ALL SOURCES?
Let verify first to narrow down to where the problem can be, attach the powered PC speakers to the Audio Line out RCA jacks to see if you can get the sound there, if you do, then the problem can be in the power amp circuits, if you do not get the sound at RCA jacks, then the problem can be in the sound processor circuit. Please post back what you find. You may be better off if the sound does work through the PC speakers, to get the TV repaired; it will be more than $150 and up plus parts.
Basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Posted on Mar 19, 2011

  • Bud Martin
    Bud Martin Mar 19, 2011

    Since it is under warranty, I would get it fixed under waranty.

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TCL television-sound is gone!! Hi, kids were in the middle of watching a movie and sound stopped.. Turned off and on, checked all plugs, tried all channels..still no sound :( does anyone know what may fix...


Check whether the "Mute function" is activated or not. If activated, de-activate it. As you know, if it is activated, there will be no audio output to any input feed to TV. Get into its menu and check this first.
If it is not activated, feed the TV by external Ariel input. and check whether any of the channels that receives have sound output. If yes, check the system settings. If your TV is a multi-system one [ie PAL/SECAM/NTSC etc:]; if the system have changed there will be no sound, as well as the picture too will be dull. It will be best to make this adjustment to AUTO; as it will make the set to determine the system of signal it receives, and will change to it automatically.
If all these are OK, and still there is no sound, something bad have happened. If so:
Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Oct 22, 2014 | Televison & Video

1 Answer

The sound on my TV went out all of the sudden. I was watching TV then all the sudden it was like the mute button was hit. The first thing I did was press the mute button a few time, still no sound. Second...


You should take the TV back to Bestbuy when you get the chance... Tv could of came defective from the factory. They should be able to exchange for a new one if you explain the problem to them.

Jun 30, 2011 | Dynex DX-LCD37 TV

1 Answer

I have a Sharp 19 with no sound on some channels.


Make sure it is not on the SAP or secondary audio setting. Some channels broadcast English and Spanish or English and Silence. If you are set on the second audio broken you may hear nothing. Check your manual.

Jul 30, 2010 | Sharp 19 in. LCD HDTV

1 Answer

Sound went out, all I get is white noise that you cannot mute. Happened when I changed from high def to regular channel. Even with everything unhooked still just white noise.


Analog regular channel TV was turned off mid 2009. You need a digital channel convertor box to receive the new digital channels... The analog ones went bye, bye in the USA. Without the box you will just get noise.

Jan 02, 2010 | Hitachi 50V720 Television

1 Answer

No sound on some channels


CHECK YOUR SAP. tHE SECOND AUDIO PROGRAM IS PROBABLY TURNED ON.

Nov 23, 2008 | Protron PLTV-4250 42 in. LCD Television

1 Answer

Sound and Volume trouble


I bought my Insignia 32" LCD in November 2007 - same problem. I figured out that if you press the "input" button on your remote select any of the other options "component 1, composite 1, etc.. that you're TV isn't on -then press "input" again and go back to the component that you're TV plays on - you'll have volume when you go back every time. I've gotten so used to doing it now that it's become habit. 9 times out of 10 I have to do it.

Mar 15, 2008 | Insignia IS-LCDTV32 32 in. Television

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