Question about Vizio SV420XV 42 in. LCD TV

Open Question

I have a vizio sv420xvt and the screen goes black

After powering on and picture comes up, my screen goes black. Can still hear sound

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
bluegreenash
  • 661 Answers

SOURCE: no picture just comes sound

sounds like the Backlight has failed, if you look closely at the screen you should be able to see the image changing, but as there is no back light there is no luminescense so it will appear black or grey, It is probably the backlight inverter or element that has failed, if this is within warrany organise with them to fix it for free,

Posted on Sep 27, 2007

Ad
  • 155 Answers

SOURCE: Vizio 42", have picture for about 5 mins then screen goes black.

also check the power cord wire coming from the back of the tv is loose from the tv side or perfect.

Posted on Oct 26, 2008

  • 1 Answer

SOURCE: How do I get sound on my Vizio SV420XVT 42 Great picture but no sound

I had the same problem. I could get an analog audio signal but no digitial signal. My problem was with the cable box setting. I have Cox Cable. With the Cable remote I went to settings/settings/Audio out and selected HDMI. Worked like a charm

Posted on Mar 01, 2009

  • 1 Answer

SOURCE: Vizio 50 inch plasma tv has no picture and no

check the Y-sus and Z-sus board

Posted on Nov 02, 2009

  • 66 Answers

SOURCE: Sharp LCD TV picture goes off few seconds after

it has problem in picture tube

Posted on Nov 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to fix black screen


Logic board fault. Replace it. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Jul 10, 2015 | VIZIO E320i B2 32 Inch 720p Smart

2 Answers

Vizio 42", have picture for about 5 mins then screen goes black.


also check the power cord wire coming from the back of the tv is loose from the tv side or perfect.

Oct 26, 2008 | Vizio Televison & Video

1 Answer

Vw42L tv comes on withpicture for 5-10 seconds and screen goes black ,sound is still on


Most likely you either have a defective backlight inverter, bad back lamp. Based off of your model #, I'm gonna lean towards a back lamp.

May 10, 2012 | Vizio Televison & Video

1 Answer

My vizio won't turn on and has code 5.1


http://cdn.vizio.com/documents/downloads/hdtv/SV420XVT/SV420XVT_Users_Manual.pdf ..not sure if this will help you out its the only manual i can find.half way down the page it gives yoy faults and what to check for.
if this is not the manual please let me know.

Jul 12, 2010 | Vizio L32 32 in. LCD HDTV

1 Answer

Vizio lcd 42" It take too long for the picture to come on I can hear the sound it can take from 15-30 minute before I can see the picture. I replaced the power supply board but did not solve the problem.


You need to look and see if the 24vdc feeding the backlight inverter board disappears when the screen goes black, if the voltage is OK, then the problem can be the backlight inverter baord, it is either bad or not getting the ON signal on the ON/OFF pin from the main logic board.
http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+GV42L+

http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

Jun 12, 2010 | Vizio GV42L 42 in. LCD Television

1 Answer

VIZIO TV Black screen. Cannot turn off TV without unplugging.


I had a similar problem after having a Vizio for 2 and a half years. I left the room for a minute, i came back and the screen went black. I didnt hear an arcing sound though. There was still power to the unit and you could see that the back light was working, just no picture, no sound, and you couldn't use any of the buttons. The only way to turn it off was to unplug it. It would then start up, with the Vizio logo going from orange to white, and then do the same thing all over, no pic or sound. I would check the ceramic fuse first on the board that gets power from the plug.

HOW I FIXED MINE: I ordered a new "main PCB" from tigerdirectparts.com (you can also use searspartsdirect.com). This is the circuit board with all of the inputs on it (hdmi, cable, etc.) I opened it up, disconnected the old one, put in a new one and now it works fine.I used both serial numbers on the board to search for it online. It cost me $144 to do it, but that's better than $450 for a new TV. My tv is the vx32l hdtv10a. I hope that helps.

Jan 13, 2010 | Vizio VW42LF 42 in. LCD HDTV

2 Answers

How do I get sound on my Vizio SV420XVT 42 Great picture but no sound


I had the same problem. I could get an analog audio signal but no digitial signal. My problem was with the cable box setting. I have Cox Cable. With the Cable remote I went to settings/settings/Audio out and selected HDMI. Worked like a charm

Oct 19, 2008 | Vizio L30WGU 30 in. HD-Ready LCD...

1 Answer

Vizio L37


Sounds like a bad av connection on the main board. i would try to connect the xbox via an alternate av connection or hdmi to verify problem. contact vizio support and describe your problem. they have had trouble with this main board. some of their parts have lifetime warranties and the service call is free. changing out the main board is a pretty simple process, about an hour or less. hope this helps.

Sep 28, 2008 | Vizio L37 Television

Not finding what you are looking for?
Vizio SV420XV 42 in. LCD TV Logo

Related Topics:

52 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74383 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Are you a Vizio Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...