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Sony Bravia had KDL-40V4000 Went off I changed the fuse but still not come on . Any one have a idea what's going on pleaseeeee ????

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  • Sony Master
  • 6,694 Answers

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Posted on Dec 16, 2016

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6ya6ya
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Posted on Jan 02, 2017

mistersony
  • 320 Answers

SOURCE: green pixel lines

It sounds like a bad LCD panel but you would have to post a picture of the problem for me to be sure

Posted on Oct 18, 2008

  • 50 Answers

SOURCE: sony bravia kdl 40V4000 avi toolbar remains displayed at top of s

On the remote control there is a button ( i+ ) this toggles the onscreen display.. Push this till the info pane is gone...

Jay

Posted on Feb 21, 2009

  • 1 Answer

SOURCE: display clock on our Sony Bravia LCD Digital TV KDL-40V4000

Keep pressing the info button on your remote to cycle through the three? options. One or two presses will make the digital clock display again.

Posted on Mar 04, 2010

  • 50 Answers

SOURCE: slow moving image sony bravia KDL32M3000

Hello darwin_gabou, My names Dave! You have a bad A/V input board.

Part #: A-1376-788-A

Link to part: http://www.shopjimmy.com/catalog/product/view/id/169673/s/sony-a-1376-788-a-bm-board-for-kdl-32m3000/

Please feel free to contact me if you have any question. I'll be more then happy to answer any questions you may have!

Dave
503-432-9904
Premium TV Tech
www.pleasefixitdave.com
pleasefixitdave@yahoo.com

Posted on Apr 01, 2010

tvhelp-Dave
  • 178 Answers

SOURCE: Bravia KDL-46VL130 TV: Our Sony KDL-46VL130 picture is streaking and some...

That symptom may cause by the main board or t-con board, I suggest you do software up grade first.

Posted on May 07, 2010

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My Sony BRAVIA KDL 40V4000 will not turn on after turning it off.


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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1 Answer

Went to turn telly on, no power, changed fuse in plug still no power, any ideas


You need to see if you are getting at least the 5v standby voltage (it will always be there with the set on or off), if you do have the 5v, then need to find out if the main board is sending to on command to turn on the main section of the power supply.

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1 Answer

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Try using a different wall plug one you know that works run an extension cord if you have to check it. Lastly are your wall plugs grounded 3 prong plugs? The old fashion plugs with 2 prongs are not sufficiently grounded and that may be your problem and you would need an electrician for that. Otherwise you may have a defective tv. BTW how did you change the fuse in the plug? Are you talking about the breaker box?If so you probably do have a grounding problem.

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1 Answer

Sony bravia kdl 40V4000 avi toolbar remains displayed at top of s


On the remote control there is a button ( i+ ) this toggles the onscreen display.. Push this till the info pane is gone...

Jay

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1 Answer

Sony Bravia KDL-S40A12U Blank screen


Hello

on your set there is inverter board that is what lights up th backlight on your TV making everything visible that board has went bad.

Thankyou

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