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Dean powell Posted on Jan 22, 2015

I have a sony bravia kdl40w 4000. When i turn it on it clicks on and off with no picture, the power light goes on then off repeatedly, any ideas what this could be

  • Wylie Johnson Jan 23, 2015

    Hi Dean powell, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

  • Dean powell
    Dean powell Jan 23, 2015

    The red light doesnt bilnk at all, the power light comes on then goes off straight away, its like there is a microswitch somewhere that doesnt connect

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2 Answers

Gareth Wood

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  • Posted on Jan 23, 2015
Gareth Wood
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The amount of times the red stand by light flashes indicates what the fault with the tv is try counting the blinks the googlt my (tv model number) stand by light flashes x amount of times

Testimonial: "The light does not blink at all as the tv doesnt come on"

Atif Nadeem Butt

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  • Posted on Jan 23, 2015
Atif Nadeem Butt
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How many times of red led blinking?

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Anonymous

  • 1 Answer
  • Posted on Feb 28, 2009

SOURCE: Tv turns itself off and on.

I just had this problem. The plastic back of the TV has a grated opening directly in the middle and towards the top of the TV. There is a fan directly behind. The grated opening was full of dust so air couldn't pass easily. I simply vacuumed the dust. I went the extra step and removed the whole back of the TV and vacuumed the entire space.

I assume the internal temperature exceeded its maximum so the TV turned it self off. Cooled enough to try a restart, heated up, ...



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Anonymous

  • 2 Answers
  • Posted on Aug 18, 2009

SOURCE: I have a Sony Bravia KDL-S40A12U have had 3

if you cant fix the problem and need to buy another tv, let me know if you have the stand the tv came with. I would like to purchase it from you

Anonymous

  • 33 Answers
  • Posted on Aug 31, 2009

SOURCE: Flashing Standby Light - Sony 40 in Bravia

Similar problem. Unplug for 36 hours solved the problem.

Anonymous

  • 210 Answers
  • Posted on Oct 01, 2009

SOURCE: tv picture went out and red standby light flashes

Hi,

Sounds like there is a short on the power board or the power board has gone faulty.

You will need to seek out an engineer.

Thanks

Anonymous

  • 157 Answers
  • Posted on Oct 07, 2009

SOURCE: 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).

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Sony bravia won't stay on 52w4100, clicks with green light three thimes then shuts off and blinks red 6 times

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No Picture on TV when Power is on

This seet should provide some diagnostic help. The standby light should be blinking a repeated count with a pause. Post that count here. Also, is there sound?

The above info will indicate the problem circuit which will then suggest the remedy.

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