Question about Sony Kdl-40ex400 Power Supply Aps-254 1-881-411-22

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I don't see the answers to my questions why don'i i have 3.3v at standby on my sony bravia kdl-40ex400 power supply board

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  • Master
  • 2,878 Answers

Answers are done by volunteers and users just like yourself. The attitude does not help. Good Day.

Posted on Oct 25, 2012

  • lamar Oct 25, 2012

    are you a child?

  • Jose Diaz
    Jose Diaz Oct 25, 2012

    No. I'm the guy NOT asking for help.

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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

Will the power supply cord for sony bravia KDL 40ex500 work on 40ex400?


Usually manufacturers use as many standardized components as possible to reduce costs so it is highly probable that the power cord on both a 40 & 50 inch sony tv in the same series is identical.

Jun 27, 2015 | Sony Televison & Video

1 Answer

Ceramic fuse blows on power board


the power board is shorted and will need replacement. Yo can get the power supply board from www.tvrepairworld.com

Mar 16, 2013 | Sony BRAVIA KDL-40EX400 40" LCD TV

1 Answer

I have a Sony Bravia LCD tv an it won't turn on at all the standby light is not even there I've tried turning on an off and leaving unplugged for an hour still nothing.? Help,


You either have a problem with your power supply board or main board. I would start with having the power supply fuse checked as well as the power supply board!

Jan 26, 2013 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

I would like to know if the t-con board out of a SONY KDL-40EX500 will work in my KDL-40EX400 they look the same


that"s difficult things. but you could try it. but you must check its --t-con board all connection if it same include which connection to what & all voltage must be same. good luck!

Sep 03, 2012 | Sony BRAVIA KDL-40EX400 40" LCD TV

1 Answer

Sony Bravia KDL-40V5100 stuck in stand-by mode


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.6_8_2012_3_55_52_pm.jpg6_8_2012_3_56_10_pm.jpg

Jun 08, 2012 | Sony Bravia KDL-40V5100 40 in. LCD HDTV

1 Answer

Sony Bravia KDL-40v2500 not on


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.
If the set is opened up at least look for bad puffed up caps like these.
4_17_2012_4_50_36_pm.jpg

Apr 17, 2012 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

My Sony KDL-26S3000 won't turn on it well get stuck in standby


Please see the troubleshooting chart, BU1 board part # A-1268-869-A, cost approx $230.7685cfa.jpg

May 23, 2010 | Sony Bravia KDL-26S3000 Television

1 Answer

Sony bravia kdl-52w3000, turn tv on, no picture or


Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.

To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).

Oct 07, 2009 | Sony BRAVIA KDL-52W3000 52 in. LCD...

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