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

2 Answers

TV will not stay on...goes into standby mode.

The TV only stays on for 60 secs at a time. Then it goes into standby mode for about 30 seconds, then comes back on for another minute. Then the process cycles again. I have replaced the projection lamp, but don't really think that was the problem. It is still going into standby mode about every 60 seconds.

Posted by on

2 Answers

Re: TV will not stay on...goes into standby mode.

I have been having the same problems as others are.The continuous cycling on then off would do it all day long if allowed. I had a rear projection tech look at it. He used the remote to do a self diagnostic check on it but and ruled out that it was the processor the most expensive part of the set. He said that on these sets that this problem was caused by 1 of 2 things 8 out of 10 times 1 needs software upgrade so He suggested that we upgrade the software because it was the lesser of the two this did not help either. 2 a new lamp i did replace one already it went out when the set was only 2 years old but have ordered a new one will post when i get the results. good luck jb

Posted on Apr 15, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: TV will not stay on...goes into standby mode.

The red LED for the the lamp may flash which CAN indicate that the cooling fan is not operating. This fan is typically very quiet and has failed on MANY units. It is behind the bulb at the very back of the TV and is not "user serviceable". My repair guy says this is common and you can at least observe the fan through the rear grill and if it is NOT turning, then it IS failing.

Posted on Feb 16, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Ok my tv turns on and only stays on for a few seconds then goes to standby mode. then it will come back on again and it just keeps doing this over and over

Encompass Parts Distribution 1-800-638-3328
they are listing this Model# and Parts.
Have you CK to make sure all Fans are running and when was the Last Time you replaced the Lamp?
Mats has Lamps for $99.00 1-800-628-1118

Oct 24, 2010 | Sony Grand WEGA KF60XBR800 60" Rear...

2 Answers

Got the tv stanby Working

The ribbon connector which goes from the FMT to the DM is disconnected or not seated properly thats the only thing that will cause the 4 4 error other than a broken ribbon socket

Nov 26, 2009 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

Picture & sound go on & off every sec, red light blinks 5 times

helloFive blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.


Oct 25, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

Hi. My sony KDF-E50A10 will turn on for about 30 seconds, then the picture and sound go off, the standby/power light flashes 49 times green and the set turns back on. After 30 seconds, the same thing...

tv works for about 2 minutes, then shuts itself off. the red standby light flashes 50 times, then the tv. comes back on for approximetly 2 minutes then goes off again, only to repeat again

Sep 28, 2009 | Sony KDF-E50A10 TV

1 Answer

Tv sound and pic goes out and green light flashes for 38 seconds

I have the same tv and it did the same thing. I replaced my lamp and it corrected the problem.

Jan 25, 2009 | Sony Grand WEGA KDF-60WF655 60" Rear...

1 Answer

I have just been given a Samsung sp42w4hb back projector TV that has a problem,after about 4 power cuts in the area the TV went off and only the standby light comes on,it stays on for about 10/15 seconds...

check to see if you have a loose conection at the relay or at the power source a lot of times the relay goes bad and you can solder a neew one in get a service manual to locate relay and parts

Jan 21, 2009 | Samsung Projection Televisions

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...

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

Related Topics:

74 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