Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

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Sony Grand Wega 50 inch that the green light comes on but no picture. The screen is black. We replaced the blub approx. 9 months ago and the tv has trouble turning on ever since. I read some where that it sounded like a bad blub - thoughts ?

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Q box

Posted on Sep 05, 2010

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TV WONT COME ON AND THE LIGHT KEEPS FLASHIN RED AN GREEN ON THE STANDBY BUTTON


  1. If your Sony Wega will not turn on, the front green light blinks, you hear a faint whirring sound and the green light turns red and flashes, it probably means the lamp inside the set is no longer working. If you noticed the screen beginning to dim in the preceding days or weeks, this most likely is the cause.

  2. If the green light flashes and the picture comes on momentarily but then goes off, and the green button flashes until the set restarts, then the seal around the lamp mount is loose and needs to be refitted.

  3. If the picture on your Grand Wega cuts in and out and the green standby light flashes, both of the set's STKs need to be replaced. STKs are small chips on your television's circuit boards and are identifiable by their labels. The specific STKs used in your Grand Wega TV will be identifiable by the numbered labels on top of the STKs.

  4. When you plug in your Sony Wega and hear a loud popping sound, it's probably caused by a defect in the high-voltage circuit. Let the professionals take care of this one.

  5. If, after turning on your Sony Wega, you can hear your set but the screen is black, you most likely need to replace your projection lamp.



Read more: How to Troubleshoot a Sony Grand Wega ' eHow.com http://www.ehow.com/how_5243554_troubleshoot-sony-grand-wega.html#ixzz1EoY37gpC

Feb 23, 2011 | Sony Grand WEGA KF-42SX300 42" LCD TV

1 Answer

Tv comes on but nothing on screen only sound stand by light blinks


tv comes on but no picture only sound and i open tv & looked in out of 3 blub only 2 comes on green & red but
blue not coming on what shuld i do ?

Nov 15, 2009 | Sony Grand WEGA KDP-57WS550 57" Rear...

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My sony wega 60 inch tv will not turn on. The


I bought a new blub for it and the light still goes green then red.Anybody know?? mg

Sep 02, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Sony Grand WEGA, Sound on, but no picture


Please replace Lamp in TV and I would recommend to buy Sony genuine Lamp from Sony Accessories, type mode number in search box and find Lamp in list, price would be approx $200

Dec 16, 2008 | Sony Grand WEGA KF60WE610 60" Rear...

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Sony grand wega KDF-E55A20


I've replaced the Lamp (Sony Brand) under warranty ...this correct the problem for me.

Thank you.
Whyte23

Jul 08, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Sony Grand Wega KDF-E050A10


Authorized sony repair center told me the problem was the Q Box. Ever heard of this? Part runs about 300 bucks. TV is out of warrenty as it is 2 years old. Do you think it is worth it to fight sony and get them to replace the part or just fix the TV?

Part Number is A1167541A, service rep called it a Q Box in the diag, however the web says its the b block assmy.

read this if you think it's the same problem

Feb 01, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

4 Answers

TV Picture Goes Black


I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions

Jul 28, 2007 | Sony Grand WEGA KDF-60WF655 60" Rear...

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