Vizio VW42LHDTV10A lcd. Has vertical lines and siren like noise !

Any horizontal or vertical lines on a LCD pane, 90% the chance that is a defective LCD panel.

Line Defects On Vizio TV Screens - Vizio TV Help

vizhdtv.com/line-defects-on-vizio-tv-screens/

Aug 26, 2015 - If you see a line on your TV screen it might be the result of several causes. Some might be simple to fix and others may actually require you to replace theTV. Pixels on a TVs display panel are organized in groups of straight vertical lines. ...Notice the line defect above is red but they can be white, green, ...

how to repair vizio lcd tv vertical lines then fail - YouTube

? 17:05
https://www.youtube.com/watch?v=YUKMl7_19gk
Jul 5, 2014 - Uploaded by bam6972
how to repair vizio lcd tv vertical lines then fail ... I do know quite a bit, not everything but I do know my fair share about tvs. this tv needed a new ...

TV Repair Help for Vertical & Horizontal Lines on Your TV ...

? 2:47
https://www.youtube.com/watch?v=b0sI7LB4cZE
Apr 25, 2014 - Uploaded by ShopJimmy.com
TV Repair help with troubleshooting lines on your TV Screen. ... I have Vizio M470SL. My TV has .... Why does my T.V. suck Don't buy Rca T.V..

Thin vertical lines cover screen on Samsung LCD - AVS Forum ' Home ...

www.avsforum.com/...lcd-flat-panel.../1127410-thin-vertical-lines-cover...

Mar 7, 2009 - 30 posts - ‎25 authors
I have read there could be ribbon cable connection issues so I plan to .... I have a VizioVW22LHD TV,I hooked it up using a HDMI cable to my Toshiba satellite laptop. ... If you have thin multi-colored vertical lines on your tv panel, that do ... my TV on the thin vertical lines come all over the screen and the TV ... my VIZIO E470i-A0 LED has vertical colored lines on ...
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Nov 18, 2013
Vizio SV370XVT lines throughout entire display. Not ...
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Thin vertical line on LCD tv
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Vizio P50HDTV Display Problems - Colored Vertical Lines .

From what I have heard the screen is likely to be ruined and need replacing.
Replacement screens are available but throwing the tv away and buying new seems to be the popular option.

It is probably time to contact your household insurer...

Flashing screen and clicking sound might be the fault to its panel. it will be best to contact any service technician.

May I ask the model # ? If it is a VW42LHDTV10A, the problems is caused by faulty capacitors on both inverter boards.

This problems the tv serveral vertical lines show up on the LCD screen panel by itself?Yes,the tv board that call the T-CON decodering board is dying.The T-CON decodering board it sit at the middle bottom of the LCD screen panel.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish T-CON decodering board for the replacement.If these vertical lines cause by an object or a person by hitting the LCD screen panel,tv is not repairable,because the LCD screen panel is dead not worth replacing because the LCD screen panel are 90% important to the tv and cost the same as a new tv.

Looks your power supply quit. Get a new one from vizioparts.com might cost a buck and a half,plus an hour of labor, but 52"? deffinetly worth it! Vizio is good on parts. Make sure, have your serial# ready. some sets have been modified within a year, might get a wrong part without ser#.
Take care.

It sound like you may have sound processor problem which is part of the main board, I would also look at the 12vdc from power supply to make sure it is clean DC.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=l37hdtv10a

http://en.wikipedia.org/wiki/Capacitor_plague

That problem caused by a connection between LCD crystal and matrix driver,no tools yet to reconnect that metal to crystal connector,Claim warranty right away that will multiply or became larger.