Question about Sony KDS-R50XBR1 50" HDTV

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Sony SXRD Projection TV

Was working just fine last night but today turns on for 2 sec then PowerStandby light flashes 4 times. Standby LED (red) blinks four times. First time it occurred I opened the set and cleaned the fan; worked for another 2 months. Second time just occurred. Ordered replacement fan; will advise if it fixes the problem

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  • missycam70 Aug 28, 2008

    Yes I have had the same problem. This after having already been through a new optic block, put in because of the green blob everyone is complaining about. Anyway, a few months after that problem was resolved, the t.v. suddenly started having an issue where it would come on for a couple of seconds, and then shut down. The red light would instantly start blinking four times. I had this problem continuously for over a week before the service guy could get to me, and when he finally did show up, it came right on for him. However, when he put up some on screen menu for troubleshooting problems, it read fan error. The service man told me to give him a call if it did it again because there are 3 fans and when it is working he cannot tell which one is the problem. Well it continued to happen again sporadically and I could feel air blowing out of the two outer vents before it would shut down, so I assume it is the inner fan that's the problem. Who knows? Even the repair men don't know obviously. Anyway, when I found the time to call for service again, the guy said, "well if it is not doing it now I am not going to come out, because I won't be able to see the problem". I told him to order the inner fan and put it in to see if the problem is resolved, because I have a life and cannot continue the inconvenience of this for a t.v. that was very costly and not even 2 years old. This is unacceptable and I am ready for a fight if it isn't resolved. I will never buy sony again.

  • Anonymous Nov 08, 2008

    Yes, the exact same problem is on my T.V. Does anyone know if Sony will be offering free repairs for this? the problems on this model are too many, too soon. They should be recalled. I suggest that if you have any problems, please post them and call Sony and make a stink. We will be calling them!

    Love the picture, hate all the problems!

    V.H. Cocoa, FL

  • moehagerty Nov 10, 2008

    this is such a mess. i have had the repair man out 4 times. its about time sony buys these worthless set back. how often do we have to fix these fans.

  • Anonymous Jan 19, 2009

    The lamp light blinks five green then it goes red, i had the lamp changed and fan cleaned same problem.

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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 is an EXTREMELY EASY FIX...

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 lubricant.

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 me...lol...

HOPE THIS HELPS!!!! IT WORKS, TRUST ME...

Posted on Oct 01, 2008

  • mjallison Jan 04, 2011

    [KDS-R50XBR1 50 in] Thank you FIXRUPPR, you were right on. It took much searching to find your solution, but the time was well worth it. We had the exact symptoms, tried the method you suggest, and had a great outcome...TV works great again. By the way, I carefully removed some of the cotton off one tip to reduce the diameter of the QTIP for the spindle hole. It worked well and cleaned it thoroughly. I particularly appreciate your encouragement to try this. Removing the back of a TV has never been one of my favorite activities.

    As an aside, we must be among the lucky few...we have had this set for a few years now and are very happy with it.

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This site has been helpful to me for my problem. I have spent too much money for this TV to have continual problems, optical block, lamps and now the fan. In addition my Sony manual does not speak to the 4 blinking red lights only 3. I own several Sony products, laptop, disc player, play station, etc. Sony was no help when I called about the TV and to replace the fan will cost me between $350-500, I am not very good at repairs but I am game to try and replace the fan.

Posted on Dec 25, 2012

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The 4 blinks is a fan error and if you ordered the correct fan then yes it will fix the problem. The most common fan to go bad in this model is the lamp fan (from the back its the big one on the left) I have seen other fans cause this problem from time to time though. the correct way to find out what fan is causing the problem is when the set is acting up you need to take some voltage measurements on a plug on the back board (this requires removing the back) . Missycam70 unfortunately the service man was correct if he came out and the set was working there would be nothing he could do. you have to look at it from his side, if he came out and put all new fans in it and then the problem was the ASU/DSU (fan control board) then he would look like an idiot and have to fix you set again and most likly lose money on the deal.

Posted on Sep 11, 2008

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1. Choose and press a device key i.e TV. LED will flash once.
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