Question about Sony Bravia Kdl-55ex720 55" 3d 1080p Led Lcd Hdtv

Open Question

Sony bravia KDL-55EX720 red led flashes 2 times

Hello, My Bravia TV (KDL 55-EX720) doesn't turn on and the red light blinks twice then pause then blinks again. Apparently this can be due to a defective Power Supply Board, can you confirm this based on the blinking code? (note that i unplugged the TV overnight twice with still the same problem - i also checked the fuse on the board itself and it is ok). If this is due to the power supply board the question then is which one is the supply board? there seems to be two boards... part# 147430311 G6CSTATIC CONVERTER (TV) (replacement part #147433111) or Part# 147430211 G8A-STATIC CONVERTER (TV) Looking at various websites it seems the power supply board is the first one, but I can't tell for sure? is it correct? Many thanks in advance for your support....

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

  • 608 Answers

SOURCE: I have a SONY BRAVIA

If it does not turn on or turns on and then right back off it is most likely the power board.

I had a similar problem with my 42 in Philips LCD HDTV.


Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Posted on Dec 17, 2010

  • 8909 Answers

SOURCE: Sony Bravia KDL-40S3000...standby red light blinks

There may be no horizontal ouput, Check C515 & 516 and the jungle IC, IC206.

Hope that helps

Posted on Feb 28, 2011

alpug
  • 1961 Answers

SOURCE: My Sony MDRF810RK wireless headphones

Hello!
I must inform you that most of the wireless headphones has an automatic shut-off which puts it in stand-by when there is no sound going in to it. Or if the sounds in the tv is too quiet the headphones will think you have finished using it.

What you need to do is increase the volume setting of the TV. And turn the volume control on the headphones down then as well - assuming that your headphone base unit is connected to the headphone socket of the TV.

Let me know if you want me to help you further.

Posted on Mar 18, 2011

  • 1779 Answers

SOURCE: Hi I purchaced a Sony

First you will have to trouble shoot to determine if it's the power supply or the inverter board.

Posted on Apr 26, 2011

Ecollier2012
  • 3459 Answers

SOURCE: tv doesn't turn on ....i

Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.

  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.


ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit

Posted on Jun 10, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have Sony Bravia model KDL-55NX720 & it won't turn on.It has 5 blinking red lights.According to a diagram that I found for this TV, I have replaced the TCon Board and the LED Panel. Any suggestions?


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/

If blinks continue without any pause, the main board is faulty.

Jun 14, 2016 | Sony BRAVIA KDL-55NX720 55" 3D LED-LCD TV...

1 Answer

Sony Bravia KDL-46W3000 - Shuts off after 30 sec followed up with 6 red blinks.Last 3 days back cover off has been working fine. What board should I be replacing?


Sony Bravia TV kdl- red blinking led light error codes ...

? 10:28
https://www.youtube.com/watch?v=0KGysXbxnaU
Mar 28, 2015 - Uploaded by Tampatec
Sony Bravia LCD TV KDL models red blinking led light error codes & possible ... with perfect picture, no warning signs and it just shuts off. is it that quick? ... with the following problem: I connect the power grid lights Standby red light. ... the title before deleting, it is very fast after that flashes Standby 6 times.Missing: 46w3000 ‎30

Nov 18, 2015 | Sony BRAVIA KDL-46W3000 Television

1 Answer

Hey so my sony Bravia LCD 55" TV if blinking a red light 5 times and won't turn on...... any idea what I need to fix and how? Oh model # kdl-55ex640


HI

if your modal no is KDL-55EX640 & red light is blinking 5 times then your led panel is defective so please change your led panel in this case

Apr 09, 2015 | Sony Televison & Video

2 Answers

Red flashes 6 times and pause for three secs


Using the remote, open the system menu and reset the tv.

Mar 07, 2015 | Sony Bravia Kdl-55ex500 55 Tv, Series 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

Sony Bravia KDL-55nx720 My tv is stuck in standby mode. Blinking twice.. Would replacing the power supply possibly fix this problem? Please help.


Normally yes. Blinking twice is power protection trip. Look first for open resistor, broken fuses (and short circuits or broken transistors / ICS if thats the case).

Oct 05, 2013 | Sony BRAVIA KDL-55NX720 55" 3D LED-LCD TV...

1 Answer

The red standby light flashes in the code of 4 times then pauses then 4 times then pauses.


Over voltage protection function is turned ON. Just unplug the TV from AC mains wall socket, and re-plug it back after 10 minutes or so and check. If it do not help you, the main power regulator board should be checked and replaced. If you wish to get more details about blinking codes to Sony brand TVs, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

Jul 19, 2013 | Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

1 Answer

My bravia will not stay on.


Hi,
If Bravia tv wont stay On and shuts Off itself that means it got some internal problem, you will see red light flashing on tv front in specific blinking time that is an error code, let me know how many times that red light is blinking after three seconds long pause to diagnose problem.
Thanks.

Feb 08, 2011 | Sony Bravia KDL-46VL130 TV

1 Answer

Sony Bravia KDL-46V3000 turns off with blinking front light.


Sounds like the power supply may be failing. Count the beeps next time, that will give you the error code.

Jun 18, 2017 | Sony BRAVIA KDL-46V3000 Television

2 Answers

Four blinking red lights.


Either on of the backlight inverter boards is bad or a backlight has failed inside the panel.

Oct 11, 2008 | Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

Not finding what you are looking for?
Sony Bravia Kdl-55ex720 55" 3d 1080p Led Lcd Hdtv Logo

Related Topics:

418 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5056 Answers

The Knight
The Knight

Level 3 Expert

74106 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...