20 Most Recent Vizio SV421XVT 42 in. LCD TV Questions & Answers


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Disassemble & reassemble procedure to many popular brand TVs and other devices are given in detail with illustrations.

Vizio SV421XVT... | Answered on Aug 07, 2016


A Very difficult to get assembly at open electronic spare part market. Contact the authorized service center for Vizio.
http://electronicshelponline.blogspot.com/

Vizio SV421XVT... | Answered on Aug 01, 2016


Take them to a TV repair centre as they are complex to repair. You may find that your homeowner insurance will pay for the repairs if you can demonstrate that it was a power surge that damage them.

Vizio SV421XVT... | Answered on Feb 29, 2016


The problem you have is the backlight is not switching on LCD/LED TVs have a light behind the screen if it is a LCD screen the invertor is not working or the main av board is not sending the on signal to the invertor if you have an LED then the most likely cause is one of the LED strips in the lightbox being faulty you need to take it to a technician.

Vizio SV421XVT... | Answered on Sep 16, 2015


more likely faulty tuner. have to take it to a repair shop, ask for quote , if the set is old may be cheaper to buy a new one.

Vizio SV421XVT... | Answered on Jun 26, 2015


TV Parts Universal TV Stands DLP Chips ShopJimmy Go to this site to get replacement power supply board. It's not a difficult job to replace it yourself.

Vizio SV421XVT... | Answered on Apr 03, 2015


Most likely a power supply issue. Many of these LCD panels have particular problems. If you search on that make/model you will likely see similar complaints. If you have no way of testing it, you could take a chance on a replacement board - but this will be around $60 to $80, so balance that against the age of the product and the replacement value.

Vizio SV421XVT... | Answered on Apr 03, 2015


To get the details of exact size of these screws, you should download its repair manual. The disassemble section of that manual will have all these details. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

Vizio SV421XVT... | Answered on Jan 25, 2015


Sounds like the main board is faulty. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box.
http://electronicshelponline.blogspot.com/

Vizio SV421XVT... | Answered on Jun 12, 2014


Take the plate to a hardware store and match it.

Vizio SV421XVT... | Answered on May 28, 2014

Not finding what you are looking for?
Vizio SV421XVT 42 in. LCD TV Logo

80 questions posted

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76204 Answers

Tony Nguyen
Tony Nguyen

Level 2 Expert

96 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1691 Answers

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

Answer questions

Manuals & User Guides

View Most Popular

SV Vizio

  • SV Vizio

Most Popular Question

sv421xvt turns 10 sec off

  • Televison & Video
Loading...