Question about Sony Bravia KDL-32V4000 32 in. LCD TV

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4 red standby flashes!!! Need help!!!!

Hey, So I have had this TV for a few years or so and only recently It shut off once by itself and then blinked a few times. At first I ws able to switch it back on again and all was fine. However 4 days ago the same thing happens so I switch it back on like last time but within 10 minutes or so it switched off. I then pull the plug at the back and left it off for a few days and today when i switched it back on it immediatly switched back off again flashing the red light 4 times before a second or two break and repeats the process. I looked on this site for answers but not sure which is the right one. I read that it could be a bulb issue or it could be a power issue. I also read It could be a fuse problem. So I opened up my TV (I just unscrewed the screws at the back and took out the back panel so i could have a closer look. Everything looks find and I am not sure what the problem could be. I do not have a warranty on this TV no more and from what I have read Sony seem to be useless at customer service anyways. I was hoping that It would be a dust issue but there Is not much dust in the TV and I have no idea what It could be. Apart from wild guesses is there any definative answer which could be given from just the 4 red blinks? The usermanual says contact a sony centre but I will not do this based on the experience for others and I do not wish to pay loads for It to be fixed either. I can do the soldering and stuff myself If It Is required but jsut want to know what Is the problem. Would be greatful for a response. Thanks in advanced for anyone who can help. Dean

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  • Dean A Feb 09, 2012

    Another thing which I did not understand was how I might need a new bulb? Whilst looking at this LCD TV I do not understand where this bulb would be and why you would need one as I thought bulbs were for projector typs TV's.

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There are a few things to ponder here...probably the high voltage inverter power board is shutting down due to excess power drawn from CCFL(cold cathode fluorescent lamps) . This will happen eventually as a carbon track starts to grow down the tube drawing more current . There has to be a lot of hours for this to happen .
Sony was not free from the bad capacitor affliction...an ESR tester is not an expensive investment unless you only use it once but it can find bad caps that are not showing signs of ***** ie:leakage ,swelling.
failing ballast transformers would be replaced by new inverter board . This would be a last resort without schematic and instrumentation to get hard data to find culprit .
The CCFL tubes can be replaced and may be worth the time and effort with sweat equity . At approx 40.00 usd for 10 you would have to decide for a mere 32 inch LCD TV .
I would spend the money to get an LED TV and get longer service life and possibly better features ie: smart TV

Hugh

Posted on Mar 11, 2017

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: red standby light light blinking

there is in-line fuse that blowes,caused by the fan vents being restricted (smoking can be a big facter) the vents should vacumed a couple times a month. you will need to have it seviced (parts and labor cost me 270$

Posted on Feb 09, 2009

welcomejee
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SOURCE: Sony KDF-E50A10 No Picture

4 times blink error shows that any FAN is not running in TV as there are 4 fans in this TV.
Please check fan connectors and make sure all are plugged securely.

Posted on Feb 14, 2009

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SOURCE: I have a Sony KDL-32V2500, bought two tears ago.

bad inverter pcb

Posted on Jun 07, 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

  • 1 Answer

SOURCE: 55" TV keeps shutting off automatically

Green light flashes 5 and then red light flashes 6

Posted on Sep 28, 2009

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