Question about Sony Grand WEGA KF50XBR800 50" Rear Projection HDTV-Ready Television

1 Answer

No picture for the TV

My TV just turned off and it is making a sreeching noise when turned on (No picture)...
Do i need to buy the bulb...i have not changed it for 4 years...
Thank you

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Sony Master
  • 8,617 Answers
Re: No picture for the TV

The bulb wouldnt make it screech, that sounds like a bearing in the color wheel. You may want to consider getting a service manual for your set. If so you can get one for your model for 10.99 at the following link, and they will email it to you if you go back to the site and request that they email it instead of regular mail. Hope this helps. Here is the link.

Posted on Jan 20, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I got a 52" zenith

No,the tv message said replace lamp wright?Yes,mean the tv projection lamp is the causes and the problems.The tv projection lamp life span have ended that why the tv it is not holding a stable tv projection lamp picture.All throught these causes,does the tv make alot of clicking noises too,when the tv projection lamp is it on for 30 sec.and shut it self off?Yes,than the board that call the Ballast board it is also dead too.This Ballast board only job are to ignite the tv projection lamp only.Tries websites like, to buy a new tv projection lamp and a new Ballast board too for the replament too,if this tv causes have alot of clicking noises,when the tv is trying to ignite the tv projection lamp.

Aug 09, 2011 | Zenith D52WLCD 52" Rear Projection...

1 Answer

My mitsubishi wd 73733 just made a popping sound and went off.when i tried to turn it back on its making noises with no picture goes from a green light to blinking red on lamp inicator do i need a bulb or...

You can actually go with just buying a bulb. I have seen many cases where televisions stopped displaying a picture due to a worn out bulb. The noise is also from the weak bulb.

Mar 13, 2011 | Mitsubishi WD-73733 73" HDTV

1 Answer

When the TV first went out there was no picture or sound so I replaced the bulb and had sound and pic for about 6 hrs total between 2 days of watching the TV. So I sent that bulb back and received an...

This tv have a board call the ballast board to help the projection lamp to ignite.U hear clicking noises mean the ballast board is dead,not doing it job igniting the projection lamp.

Jan 17, 2011 | Mitsubishi WD-57733 57" HDTV

1 Answer



I had the same problem. I bought my tv at Best Buy and my warranty included a new bulb for the lamp. They only last about 2 yrs or so depending on how much you watch the tv. You can also buy replacement bulbs online that don't cost too much. BUT, you will need to replace every couple of years. The things you listed are exactly what happens when the bulb goes out. Hope this helps!

Sep 14, 2010 | Samsung 50" Slim-Depth DLP HDTV

1 Answer

Tv has sound no picture and beeping noise

You need a new projector bulb. Google up your model and buy the best warranteed one you can find. Buy a "caged assembly" and not just a bare bulb.

Then unplug your tv and get a screwdriver. Follow your model's instructions and just snug down the electrical screws. Do not overtighten them.

Then consult your manual on how to reset the lamp timer so it knows you put a new bulb in and fires up from the first try.

Treat yourself because you've just saved yourself a trip from a repairman!!

Aug 13, 2010 | RCA Projection Televisions

1 Answer

When trying to turn on my tv, the green light blinks a few times then the red light blinks a couple of times then automaticaly the tv shuts off. There is no picture at all. It makes a couple of sounds like...

sounds like the projection bulb went bad. change the bulb and it should work. sometimes they make a high pitch noise when they are trying to turn on. the bulbs seem to last about 2 years for me.

Jun 04, 2010 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Turns on and off then back on then off

Discovered bulb had blown out.
At power on button, red light and green light flashed and no picture was present. I opened side panel after unplugging tv and let the bulb housing cool, then removed the bulb and discovered it had blown. Luckily I had a replacement bulb from the purchase, replaced it and it worked again.

Oct 01, 2009 | Toshiba 52HMX84 52" Rear Projection...

1 Answer

LG DLP Suspected Faulty Bulb... how to be sure?

First pull back off turn TV on watch Fan behind lamp more then likely it is going bad Fixed LG 9months ago and it was the Fan.If Fan Stops turning Lamp will not light.

Aug 06, 2009 | LG Projection Televisions

1 Answer

I have a Toshiba 52HMX94 rear projection T.V., i've had it for 4 years, replacing bulb every year. I now have another new bulb, but when I turn on the T.V. i hear a buzzing noise from the rear, and then...

Your TV requires ballast power supply board that gives you buzzing noise when TV turns ON.
Ballast supply board is available in Part Store and replacement of that board requires expertise.

Jul 23, 2009 | Toshiba Projection Televisions

3 Answers

Magnavox 50" DLP Tv power light comes on but then i hear a buzzing noise and then two red lights come on the tv. at no point does the picture turn on during this time. Can you please give me a possible...

Your bulb is burned out. I have had the same problem. It seems this television has an overheating problem--and short bulb life. I have had our 50 Magnavox dlp for two years and just put in the second bulb before Christmas. You can buy the bulb from a dealer on ebay for $99 and install it yourself. I is not in the housing so you have to carefully take out 4 screws and replace the bulb without touching the face of the bulb. To buy the one from Magnavox with the housing is much more expensive. I think the first time my husband replaced the bulb it took about 45 minutes--this time it took about 20.

Dec 16, 2008 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

Not finding what you are looking for?
Sony Grand WEGA KF50XBR800 50" Rear Projection HDTV-Ready Television Logo

66 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Projection Televisions Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers


Level 2 Expert

103 Answers

Jason Harris
Jason Harris

Level 2 Expert

256 Answers

Are you a Sony Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides