Question about Sony Bravia KDL-37M4000 37 in. LCD HDTV

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Any time I use number 3 my Sony Bravia looses picture &sound What can I do? help?

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  • Sony Master
  • 74,106 Answers

Fault with the main power supply regulator 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. Surf the site with patience. 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.

Posted on Dec 08, 2014

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6ya6ya
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Posted on Jan 02, 2017

HDTV GURU
  • 261 Answers

SOURCE: sony bravia

It sounds like the backlight is going bad or possibly the panel. Let me see a picture of it. Talk to you later. Jay

Posted on Feb 01, 2008

jomabug76
  • 1148 Answers

SOURCE: unable to turn sound on, picture is fine. volume numbers increases but still no audio

check menu make sure ,,internal speakers are on,,check rca jacks

Posted on May 15, 2009

  • 630 Answers

SOURCE: my sony bravia has no audio when used as cable tv

Check the connections between the cable box and the TV. If you are using scart check the connector is in squarely if using rgb or composite you need a separate audio connection using the red and white phon sockets.

Posted on Nov 08, 2009

  • 1 Answer

SOURCE: sony bravia kdl 46s4100 no picture

it sounds like your back light might be going out. You might be able to fix this by installing a new backlight inverter board.

Posted on Aug 05, 2010

welcomejee
  • 10594 Answers

SOURCE: No picture or sound. Red light

Just a correction, it is not necessary that 4 times red light blinking always shows inverter board problem.
It depends on chassis/ model number of Sony bravia tv to what is error code of 4 blinks as it would be mentioned service manual.
I'm Sony tech and can help you, let me know model number written at back of tv to provide you exact info about 4 times red light blinking.
Thanks.

Posted on Aug 18, 2010

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Why does my tv stop.when I use number 3 my Sony Bravia looses picture &sound


Contact the authorized service center for Sony. It sounds like corrupted firmware. Electro help

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Sony Bravia KDL46W4150 crackles and volume suddenly increases


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There is some loose solderings or leaky ceramic capacitors at the audio output section of your sound card. Check it.

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2 Answers

No picture or sound. Red light blinking four times on sony bravia tv. Suspect power supply problem?


Red light blinking 4 times on Sony bravia TV.This is the problem of INVERTER BOARD.The inverter board has to be replaced.Every Sony bravia tv has a particular model number and the Inverter board part number depends on model number of the tv. As you have not mentioned the model number so the exact part number of the inverter board is hard to tell.But you can get the required inverter board part for your tv from www.partstore.com ----------- Thanks. Keep updated for any more query. You can rate thissolution and show your appreciation.

Aug 18, 2010 | Sony Televison & Video

1 Answer

My sony bravia has sound but no picture error code blinks 5 times


Repair unfortunatly. Any blinking LED should be checked over by a repair agent.

Call Sony direct on 0845 6000 124 local rate number to book it in.

Good luck

Nov 07, 2009 | Sony BRAVIA KDL-32S2000 32 in. LCD HDTV

1 Answer

Sound turns off after tv is started sound only one


Hi my name is Roety,
I can help you with your issue ,
Without a model number, I do work on sony LCDs.
The audio is on the mainboard. You need the mainboard replaced.
Reboot every device by unplugging the AC power , if the sound still cuts off replace the mainboard
 
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond
I will reply asap
Thanks
Eric

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