Question about Vizio 42 in. LCD TV

Open Question

Vizio sv420xvt1a all the sudden no sound,no picture but had backlight.viz logo shows to be on but no controls work. replaced main board and t-con board,nothing helped

Posted by on

4 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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

toddthetvmd
  • 101 Answers

SOURCE: i have picture but no sound on my 42 inch vizio

If you received a remanufactured board it might be defective,Or did you forget to hook back up the speakers? Sounds dumb but happens alot. Speaker wires get in the way,we disconnect them to look at a board or replace one.Often gets over looked.But I have received several defective boards.Hope this helps. Toddthetvmd

Posted on Oct 26, 2009

  • 13 Answers

SOURCE: Vizio TV 2006 vx32Lhdtv doesnt work.

I had the same 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. 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.

HOW I FIXED MINE:Look through the back vents for a white light to make sure the backlight still works. 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.

For me the part number was either (depending on the vendor) : 0171 2272 2174 or it was 3632 0212 0150. Check your circuit and see if any of those numbers match up.

Posted on Jan 22, 2010

Testimonial: "If all things are equal than the solution is at hand. I thamk you!"

ladywinn
  • 5138 Answers

SOURCE: Hi, I'm getting sound and no picture. I can

I read alittle about your problem and the T-Con Board is located in the Middle up on Top of other Boards It controls the color/ Video on TV,Since you hve No Picture? ,When you said you replaced Main Board was it the Signal Board? Shopjimmy.com has a few boards .
Encompass Parts Distribution List this Model/Parts 1-800-638-3328

Posted on Dec 13, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My tv model e470-a0 vizio turns off and on with the backlight and the vizio on screen logo is crystal clear on startup. No picture and sound other than some very very faint scrambled lines towards the...


T con board affects picture only. since you are having issues with both the picture and audio I would suspect the main board which deals with both.

Dec 29, 2016 | Vizio Televison & Video

1 Answer

What's my next step in diagnosing my Vizio LCD TV picture issue?


Hi Tim,
If all the boards you replaced were good and working, the only thing remains is the panel if the backlights are on. Please see that the LVDS cable is carrying voltage to the Tcon board.
Good luck.

May 10, 2016 | Vizio E701i-A3

2 Answers

I have a Samsung TV model UN50H6350AFXZA which has sound but no picture. Backlights work. Replaced t-con board with new one, but not fixed. What next?


Main board. T con board is only involved with video issues. Main board goes both ways and since you already replaced the T con board that is your only alternative. U got backlite so inverter board is good.

Nov 13, 2015 | Samsung Televison & Video

1 Answer

Vizio M550NV, VIZIO LOGO LED turns on but no picture, not sure about audio, THE BACKLIGHT NOT WORK. ALWAYS the vizio logo is on.


If you can see the Logo; the back light is there. Contact any service technician; Sounds like main board fault. In most cases, a firmware update might help you. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Jan 18, 2015 | Vizio M550NV 55 in LCD HDTV

1 Answer

VT420M no sound or picture and turns off by itself


this sounds like a main board failure but a defective power supply can mimic some symptoms of a bad main board. I would recommend you get a diagnosis done on the set. If I was a betting man, I'd guess the main board

May 27, 2013 | Vizio Televison & Video

1 Answer

VX37L Screen Suddenly Went Blank, Now No Image, Sound Only on Cable Input, VIZIO Logo Lights Up


Hello,
turn on the set, grab a bright flash light and dim the lights in the room. Shine the flash light on the screen, if you see a faint picture on the screen, you are dealing with a backlight problem. There are several things that can cause this. One, a bad backlight inverter, two, faulty 24vdc power supply, three, bad main board, or a bad faulty backlamp.

May 10, 2013 | Vizio VX37L Television

1 Answer

I have a: Vizio SV420XVT1A.... The TV dont turn on!!... The logo light is off and have a sound like a beep beep and a red light blink a number 5.1 in the bottom of the TV


The main digital board to your TV should be troubleshooted. If it found faulty, there is no other way than replace it as card basis. There is no repair to these boards. Very like computer motherboards.

Oct 27, 2012 | Vizio New Original SV420XVT1A Remote...

Not finding what you are looking for?

Open Questions:

See all Vizio 42 in. LCD TV Questions

Vizio 42 in. LCD TV Logo

Related Topics:

323 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73635 Answers

CoppellTVRepair.com

Level 3 Expert

749 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...