Question about Sony KDS-R50XBR1 50" HDTV

6 Answers

4 blinking red lights in power/standby

Tv comes on for a few seconds then goes off. 4 blinking red lights ovor and over. there is no code for this in manual.

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  • bay-man Sep 25, 2008

    I have exactly the same problem. On power up - the green light flashes around 20 times, the picture begins to faintly show for less than one second, then 4 blinking red lights, a pause, and the pattern of 4 blinking red light and pause repeats.

  • suescott67 Nov 27, 2008

    tv comes on for about 2 seconds, then off with flashing red (4 times & repeats) in the power/standby window.

  • eyeball33 Dec 21, 2008

    how do you check to make sure power is making it to the fan

  • Anonymous Jan 03, 2009

    thanks. we had the 4 blinking red light problem and cleaned and lubed the fan. it now works. i thought i would have to get a new tv

  • Sarah Haslam Jan 09, 2009

    I had this ongoing problem with my Sony SXRD KDS-R50XBR1 for several months. It continually worsened. I had spent several hours on the phone with Sony talking to people who apparently had no idea what they were talking about. I looked up the problem on FixYa and found the answer from FIXRUPPR. This solution was VERY simple...and worked like a charm! Thank you so much for your input and I highly recommend trying his fix prior to paying an astrnomical amount of money for a professional visit.
    Thanks again!

  • mmm920 Jan 14, 2009

    Thanks for offering up some hope on this. We've been to the repairman to replace the optical block under warranty, after our tv developed a yellow problem. That's gone. Last month, the bulb that the repairman said would go out, went out, and we replaced it ourselves for $90 from an online distributor of bulbs. Now, after a waiting a brief moment for the tv to power on, we get a moment's glimpse of the picture, then it blinks out, and our green power light reverts to red, and repeatedly blinks 4 times, then pauses, then repeats.

    Online Sony Technical Support only tells us to unplug the tv, and power reset it, to no avail. When it didn't work, they informed us we needed to bring it in to a Sony repair service to diagnose and fix the problem.

  • acwebb Mar 09, 2009

    Thank you so much for this info!!!!  We've been having the same problem and followed your instructions and now have a wonderfully working TV!!!  I am now going to quit my job and become a TV repairman (just kidding!)

    Thank you!!

  • Anonymous May 07, 2009

    I too can't say enough for the help on the 4 red blinking lights. By replacing the fan it cleared my issue up and saved me a ton in repair costs. Thanks again for posting this fix!!!!



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I would recommend replacing the fan, cleaning it doesn't solve the problem...If it does, it's only a temporary fix. Replacement fan is around $30 and easy enough to do yourself...

Posted on Oct 01, 2008

  • FIXRUPPR Oct 01, 2008

    This is a fan issue, most likely the large fan in the rear, lower left (from the back)...

    Here's the fix, I promise, it's EASY........

    Ok, I think I have the answer for the BIG FAN failure. I recently did a
    similar fix on the spindle of an xbox 360 and it is identical. Ok, this

    Open the back of the tv, locate the large fan (on the lower left on the back of the set.) unscrew the screen and remove the fan.

    Once the fan is removed, you will see the side with the model number and the other side is totally open.

    On the open side, pull...

    The fan will come off, into your hand, it is only held by magnets...

    You will notice a spindle on the fan and the other side has the magnets
    and the hole where the spindle came from (this is the fan motor).

    Clean both the spindle and the hole (motor) with a q-tip. The hole is
    smaller than the q-tip, but do the best you can to remove the old

    Get a bit of WD40 and lubricate the spindle and spray a touch in the hole.

    Put them together, reconnect your fan, test it on startup and thank


  • whitetommi
    whitetommi Jun 18, 2012

    Thank you, thank you! Repair guy wanted nearly $400 to fix the red blinking light and blue-green splotches. I couldn't get one screw out of the back, so did what I could with the back on. We'll see if it works for more than 20 minutes without shutting down, but the blue-green splotches are almost entirely gone! Will work on getting that last screw out and then thoroughly clean the inside. I was able to get the vacuum attachment inside and rotate the fan a couple of times. Seems to have made all the difference in the world!


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I had this exact same problem - it was intermittent at first happening once every few weeks and it would just start working after 2 or 3 tries but then it started getting worse - happening every couple weeks - then days - then hours ... until i got to the point that it just would not work. i figured out that on this model the four blinking lights meant that it was an overheating problem. so here is what I did.

I took the back off the TV which gave me access to the Lamp cooling fan - it was caked with dust ... so I cleaned it up really well, spun it around a few times and made sure it was moving easily... i put the back on again and it started up no problem. I think the TV checks to make sure the lamp cooling fan turns on correctly when you turn on the TV and if it doesn't it shuts itself down to protect the TV from the excessive heat. so just make sure your fan is unobstructed and spinning freely and it should eliminate the problem.

Posted on Sep 28, 2008

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Like several of you, I had the same problem (4 blinking red lights on the standby indicator). I too had lots of dust in and around my TV. I vacuumed around the lamp area, cooling fan area and panel area between lamp and fan. I did not remove back cover or fan from TV. I turned on the power button and had a picture for 2 seconds. I unpluged TV for 5 minutes and rotated the fan from outside of TV with a small chop stick. I rotated the fan about 1 full turn. Pluged in TV and turned the power on. Yes..Yes...Yes.. My TV turned on and seems to be working fine.

Thank you FIXRUPPR and jmaransky for the information on how to correct the problem.

Posted on Apr 12, 2009

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Like Jason2112, I had the same problem (4 blinking red lights on the standby indicator). There was LOTS of dust behind my TV. I took my vacuum cleaner hand-held attachment and cleaned all the dust from the back of the TV and the cabinet where it was stored. Then, I took the hose and held it against two fans in the back of the unit to **** as much dust out as possible. I did not remove the fan or any component. Turned the TV on and it worked great!

Thanks very much FIXRUPPR - you saved me some serious cash!

Posted on Jan 31, 2009

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I love the internet! Here I am having the EXACT same problem. 4 Red Blinking lights... I cleaned out my cooling fan (Lower Left) but to no avail. I did what FIXRUPPR said. (Lubricating the spindle and housing for the fan, and it worked like a champ. Outstanding. It's 1:43 A.M. and I'm ecstatic.

Thank you, thank you, thank you.


Posted on Nov 25, 2008

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  • Sony Master
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The best advise i can give you on these sets is to take set in for repair.

Posted on Sep 26, 2008

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