Question about Sony Bravia Kdl40ex400 40-inch Class Television 1080p Lcd Hdtv

Open Question

I have a sony kdl40ex400 bravia tv shop said backlight curcuit board is bad theres only 3 boards in the back wich one controlls that curcuit

Posted by on

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.
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

  • 129 Answers

SOURCE: Sony Bravia TV went Blank

COULD BE LVDS CABLE LOSE OR NOT MAKING A GOOD CONTACT , IF IS NOT THAT UNFORTUNATELY IT WILL BE NECESSARILY TO REPLACE T CON BOARD
YOUR RATING TO MY ANSWER ITS HIGHLY APPRECIATE
THANKS

Posted on Jun 29, 2008

  • 58 Answers

SOURCE: "Upgrade" of Backlight Panel

just replace what failed.
I replace the surface mount FETs on the inverters.

Posted on Dec 06, 2008

  • 453 Answers

SOURCE: Sony Bravia 46S2010 LCD backlight ok , no video

yes it is

Posted on Jun 18, 2009

  • 1 Answer

SOURCE: Sony Bravia television hdmi stopped working

Installing a new software update will this issue. All you need is a compatible USB flash drive. Go to support on Sony.com. Look up your tv model and if there is an update, just follow the instructions to install it yourself. I have a KDL-46S5100 and this worked great. The download and instructions page I used was : http://esupport.sony.com/US/perl/swu-download.pl?upd_id=4769#install

Posted on Oct 10, 2009

  • 28 Answers

SOURCE: Sony Bravia with really bad ghosting

The little board on top attached to panel.

Posted on Jul 05, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sony Bravia KDL-xbr4 Replaced TCON board All worked great for a week Had an issue w/ HDMI cable at the box fixed it and now tv comes and the goes off to 6 blinking red lights


6 red flashes- backlight issue, bad main board, or power board or inverter boards- check standby volts on power board. "backlight on" volts should be 3-5v from main logic board then 24v to inverter


Have this from a youtube link find BUT
Better is to look first also on bad leaking or bulged capacitors thats better to replace in the bad components to get a repair because active components died on bad capacitors but after a while because on the build-in protection circuit by faults like deformed or leaking capacitors and even several fuse resistors then after replace a complete board again after a while you will may be get the same kind of problems again, take If you find some or much bad capacitors replacements 10 volts dc higher . begin with control on the power supply first of all.



Sony Bravia TV kdl red blinking led light error codes solutions Sony KDL 40XBR4 KDL 40XBR5 KDL 46XBR4 KDL 46XBR5 Service Manual

Jan 05, 2017 | Sony Televison & Video

1 Answer

Sony bravia kdl40ex400 will not turn off but screen is black. what is wrong?


Sounds like corrupted firmware. An update might be necessary. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Jul 13, 2016 | Sony Bravia Kdl40ex400 40-inch Class...

1 Answer

Sony lcd tv not pwering on


After replacing the main board, a software update should be done. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

Jan 16, 2014 | Sony KDL40EX400 40 inch BRAVIA 1080p LCD...

1 Answer

Sony bravia kdl55hx729 3d led tv turns on 3 seconds shows picture than four red flashes


Hello,
the error light sequence that you are seeing is indicating a "backlight error". Most likely you have a bad inverter board -the board that powers up the back-lights behind the display panel. They might be available via ebay if you are a DIYer, or you need to call for sony service.
Good Luck!
Rich Lilja

Dec 07, 2013 | Sony Bravia KDL-55HX729 LED Internet TV...

1 Answer

I need to replace a broken screen on a sony bravia kdl40ex400. I have worked on a lot of electronics, but never a tv screen replacement. Can i get the parts myself, and if so, is it changable by me?


Yes - just be careful with the ribbon cables. You are going to be replacing the LCD portion - behind it is the backlight assembly. Some may come with the entire assembly in one. You may need to do a little research to get a replacement - use Google to find a distributor.

Feb 09, 2011 | Sony KDL40EX400 40 in. HD-Ready TV

1 Answer

My Sony Bravia KDL 40EX400 has no sound coming out of TV. If I hook up my surround thru audio reciever I gets sound. Can someone help with this problem?


speakers in tv or wiring going to speakers or in menu someone has muted internal speakers or plug on pcb board has lost connection

Feb 04, 2011 | Sony KDL40EX400 40 in. HD-Ready TV

1 Answer

I just bought a sony kdl40ex400, 40" lcd tv and when i first turned it on the picture quality was poor and there are 2 vertical blue bars running down the screen at all times how do i fix this


The tv Tuner signal board is bad,must be replaced.This tv is new,bought it,under a year old?So this tv is still under warrenty.Call Sony for a warrenty repair.

Oct 16, 2010 | Sony KDL40EX400 40 in. HD-Ready TV

2 Answers

Tv turns on has sound


Have flashes of picture about 30 sec, or so?Than the 2 long LCD inverter boards are dead,have backlight make no difference.Tries to reset the tv back to factory setting by,unplug,replug the tv and cable box back about an hour later,let the tv Tuner board to reset it self,the cable box upgrade it softwares.After this,u still have the same problems,than the Tuner board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy the 2 long refurbishes LCD inverter boards or the Tuner board for the replacement.

Jun 24, 2010 | Sony BRAVIA KDL-52W3000 52 in. LCD...

1 Answer

Power light blinks along with clicking sound


Most likely it going to be a power supply related problem. The red blinking light is a code for a TV tech to diagnose the problem on the power supply board itself or the board that regulates the power for the screen. Some manufactures call it a Backlight Inverter Board. A TV repair shop should be able to look at it for you and tell you which board is bad.
Replacement boards can be found at a good price at Shopjimmy.com

Sep 05, 2009 | Sony Bravia KDL-42V4100 42 in. LCD TV

1 Answer

I have a Sony KDL-40V2500 LCD 1080P TV there is no picture the


A 4 flash shutdown indicates a backlight problem. It can be acused by a bad backlight inverter board (the backlight power supply) or by a defective backlight in the panel. There are fuses on the backlight inverter board called "picofuses" which will need to be checked in order to isolate the problem to the board or the panel. If the fuses are good, you have to replace the panel (very expensive!). If the fuses are opne, most likely the back light inverter board has failed.

Nov 25, 2008 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

Not finding what you are looking for?
Sony Bravia Kdl40ex400 40-inch Class Television 1080p Lcd Hdtv Logo

Related Topics:

49 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

kakima

Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

73698 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

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

Answer questions

Manuals & User Guides

Loading...