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Sony bravia KDL-32V4200

The tv turns on for a second then it goes off with series of 4 red flushing lights.

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  • Pcrepair Dublin
    Pcrepair Dublin Jul 18, 2013

    So far, I have replaced the inverter and power board. I also opened up the LCD and seen the 10 CCFL lamps turning on and then off. The symptoms are still the same. Next step is to get a main board replacement and then I'll let yous know.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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mistersony
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SOURCE: Four blinking red lights.

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

Posted on Oct 18, 2008

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mistersony
  • 320 Answers

SOURCE: sony bravia kdl40s2010u

A 4 flash indicates you have a backlight problem. Either the backlight inverter boards have failed or you have a backlight that has failed in the LCD panel. You will need a technician to check the set to determine which is the problem.

Posted on Nov 08, 2008

welcomejee
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SOURCE: Sony Bravia kdl-46S3000 flashing red lights

Sounds Lamp is weak in this TV.
Please replace lamp and procedure is written in TV user manual.

Posted on Mar 14, 2009

dsacco86
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SOURCE: my sony bravia tv is flashing red stand by light

Try leaving the TV unpugged for 30 minutes so the TV can reset itself.
If that doesn't work, most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you flashing red light codes, circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jun 29, 2009

tvtek
  • 1284 Answers

SOURCE: sony bravia kdl 32l4000 - color bars running vertically on screen

In most cases is the screen is covered with vertical lines all the way accross the screen then the T-Con module is at fault. The t-con board is replaceable without having to replace the entire LCD panel which would usually make it cheaper than replacing the TV. The part number I come up with is 1-857-213-11. Please take a moment to rate my answer. Thanks...

Posted on Dec 02, 2009

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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!
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