Question about Sony KDF-50E2000 50" HDTV

2 Answers

Sony KDF-50E2000 no picture and no sound flashing green standby

Hello,
I have a KDF-50E2000 and the other night the picture and sound went out and the standby light kept flashing. I unplugged it and let it sit for five minutes then it worked fine for the night. Then again the next morning it worked for about ten minutes and went out and started flashing. For some reason I hit the channel button and it stopped flashing like it was warming up and came back on. The screen this time when it came back on was going dim then back to normal a few times, and then came back to normal after 20 seconds. Does anyone have any idea what might be going on with it? Thanks!

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  • Anonymous May 06, 2009

    red lamp light flashes on my kdf50e3000

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2 Answers

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  • Sony Master
  • 19,396 Answers

In your case that looks like a faulty power board, a faulty inverter or an overheating problem on LCD controller board. All this three faults will cause same symptoms as yours.

When TV does not start, and sometimes you hear a clicking noise, that means that the TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on Apr 17, 2009

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  • Master
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Please replace Lamp in TV. Symptoms shows that Lamp is weak and should be replaced.
Buy original Sony lamp and avoid aftermarket or compatible lamps.

Posted on Apr 17, 2009

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Need further help, let me know.

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