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My Sony 55' DLP had a bulb out. I replaced it but now it starts to power up then quits. The light on the front flashes 3 times then repeats. Help

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Depending on model number most of these it means lamp door not closed---but several the door is warped from heat--a class action suit was settled and ended early this year.

with door off hold it edgewise to see it is not warped---note the plastic peg on the back of the door--it engages a lever when door is in place---what I do is with a Q-tip or something not metal engage the lever and hold it forward---if set now comes on you need to replace the door.

Some models got so hot they melt the door badly.

Posted on Nov 05, 2012

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6ya6ya
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Posted on Jan 02, 2017

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davebies
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SOURCE: Sony KDF-E55A20 55 in. LCD... Problem red light flashes 5 times

A 5 blink error indicates a bad lamp driver. However a lamp may possibly cause this too. I suggest putting a new lamp in if you have one just to verify the lamp is not the problem. If it still fails with a new lamp then the lamp driver is the problem. This part should be replaced by a Sony authorized servicer. The lamp can be replaced easily by you. The lamp replacement instructions are in the TV's owners manual. Good Luck

Posted on Jan 06, 2008

  • 1 Answer

SOURCE: Sony Grand vega 55" will blink green for three times than red

Your problem is your thermal fuse.It is located around the bottom of the compartment that houses the lamp. You will have to remove the lamp and take the bottom back panel off. Then you will have to remove the fan. I ordered the thermal fuse so I would know what I was looking for when I started to replace it. If you take your time and are patient enough you can fix it yourself. I fixed mine and it's working great.GOOD LUCK!!!

Posted on Jun 23, 2009

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SOURCE: 55" TV keeps shutting off automatically

Green light flashes 5 and then red light flashes 6

Posted on Sep 28, 2009

welcomejee
  • 10594 Answers

SOURCE: KDF-50a12U Powers off then standby light blinks 3 times

Please recheck Lamp Cover and make sure it is fixed in its space securely as 3 times red blink shows lamp cover error.
There is small safety switch in TV cabinet under lamp cover that has to be pushed by lamp cover if it is fixed in its position properly. That switch is not being pressed by lamp cover and causing this error.
Thanks.

Posted on Oct 19, 2009

  • 27 Answers

SOURCE: TV won't power up, 3 amber light flashes 3 times

sounds like bad power supply.

Posted on Apr 09, 2010

Testimonial: "Thank you for your help, I came to that same conclusion as it is blowing one of the 2.5A fuses. Is there a schematic for that power supply? Thanks"

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I have a 55" sony


According to the manual (you can see it here) page 122 that describes 3 red flashing lights:

"The lamp cover is not attached securely. When you secure the lamp cover, the POWER / STANDBY light flashes in red and the LCD projection TV enters the standby mode (see page22)"

Page 22 says:

"... if the POWER / STANDBY light flashes continuously, this may indicate the display unit needs servicing..."


Most DLP displays make use of a "color wheel". These small motors spin at many thousands of RPM. They often begin to make scratching sounds when they are beginning to fail. Some manufacturers make it difficult to change yourself - and others make it pretty easy.

I hope this was at least a good starting point for you & good luck. Please rate my reply. Thank you.

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1 Answer

TV repeatedly goes into standby mode and then comes back on


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1 Answer

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Check the fan that cools the bulb. It is directly behing the bulb. It should turn on when the power comes on. It apparently has a safety to protect your tv(and home). mine is in the process of going out. looking for online solutions as we speak.

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I had this same issue with a 46" Sony. I replaced the bulb, and it is as good as new. I hope this helps.

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4 Answers

Tv cuts off and green light flashes


Yup, it seems a lamp problem can give a blinking green light over the 10 times (1 - 10 times for diagnostic codes), but in my case rather than replace the bulb if it works for a minute then resets with the green light blinking, do what I did.
Take the lamp out and inspect it, it has breather screens top and bottom, if it cant breath because there clogged with dust, clean them, and you can remove the screens, use q-tips and clean the inside. I saved the cost of a lamp and it's working fine!

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1 Answer

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2 Answers

Sony Wega 55" Replaced Bulb TV still does not work


Hello, please check how many times the red light flashes. If it is 3 times this means that the lamp cover is not fastened securely. If the red light flashes 5 times this means that the lamp driver is defect. If you need more help please advice

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