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Sony grand wega 42in, you turn tv on, sound and picture o after a minete it turns off then comes bac on again.

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Please provide exact model number to help you.

Posted on Aug 14, 2008

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My Sony tv model number kp-48v75, keeps blacking out. the sound keeps going but no picture. The picture comes back in when I turn it off and on again.


must be the lamp getting burn out, if its a rear projection tv it has a lamp which has a lifespan. try to contact sony.

Mar 23, 2011 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

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

The picture will go black and the sound will go out. At the same time, the green power inicator will flash. Then the picture and sound will come back on for several seconds and then it will go out again....


My TV had the same problem. I called Sony yesterday and they told me to reset the TV. I did so yesterday, and it seemed to work. Here is the transcript with instructions:
Please turn ON the TV. While holding down the RESET button on the Remote control, press the POWER button on the TV. The TV will turn itself OFF, then back ON again. Release the RESET button.The TV will go thru the initial setup, and should work normal.

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

2 Answers

SONY WEGA 55 INCh


maybe you should change the light bulb

Jun 14, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Picture and sound first turn on before disappearing over and over again.


Hi,
Symptom shows its weak Lamp problem in TV and you need to replace lamp. Replacement procedure is easy and written in instruction manual of TV.

Always buy Sony Original Lamp from Sony Accessories for longer life of TV.

Apr 25, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Sony 42in- No picture or sound


You need to replace the bulb...very easy. You can do it yourself.

Dec 23, 2008 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer

Sony KF-60WE610 Screen and Sound On/Off


All symptoms in your TV shows that you need to replace its Lamp as it has been consumed its life hours and TV requires new lamp. Lamp can be obtained from Sony Website. Price is $200, Hope this info will help you to enjoy your Sony TV in coming days.

Aug 17, 2008 | Sony Grand WEGA KF60WE610 60" Rear...

1 Answer

Grand Wega picture going on and off; standby light flashing, sound remains on


Is the cooling fan running properly?  I'm just guessing, but it sounds like it could be overheating and shutting off, which allows it to cool off enough to turn on and overheat all over again.

Dec 09, 2007 | Sony Grand WEGA KF50XBR800 50" Rear...

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