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    Moderated By: claudio
    Agoraquest Forum Index Television Troubleshooting
      
    KDF-E42A10 blinking standby light (no error code) Dashboard
    Replies: 28 | Views: 23,497
    Last Reply: February 2, 2011, 4:00 pm

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    jehill | fryedbread | usfbulls89 | Burkemail | davewr | SomeOtherGuy | hooper610 | Marcus2323 | rjflamm |
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    Author KDF-E42A10 blinking standby light (no error code)
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-05-23 16:54

    About 3 weeks ago, our 2 year old KDF-E42A10 started shutting itselfoff with a blinking standby light (just a continuous blink, i think wecounted 4.

    It started at once a day, then got up to several times per hour.

    Thinking the lamp was dying, we ordered a replacement lamp.  This did not solve the problem.

    We've also tried different wall outlets/different surge protectors.

    I'mthinking it's some kind of heat issue, because when you first turn iton, it runs for a long time (sometimes up to an hour), but once itstarts resetting itself, it does it constantly.  audio and video shutoff, the light blinks green, and then it turns itself back on (reset,with the station info and clock showing like it's just been turned on).

    the tv is on a shelf with no enclosure around it, about a foot away from the wall in a well ventilated room.

    perhaps a fan is failing?

    Ihaven't yet taken the back off, could dust be an issue?  We dusted outthe parts we could reach when we put the new lamp in, but the resthasn't been opened.

    any help is appreciated, i've looked all over the web and people just say to get a new lamp (check!).

    thanks in advance


       


    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14282
    From: Sewell, NJ

      Posted: 2009-05-24 13:51

    Welcome to Agoraquest!  I don't understand what you mean by "continuous blink, i think wecounted 4".  Does that mean you received 4 blinks, pause, 4 blinks, etc,?  If so that indicates "Fan stopped" and the probable cause locations listed are as follows:

    1.  Fan 1-4 power is not supplied (AGU board).
    2.  Fan connector is not attached securely.
    3.  Fan caught wires or harnesses.

    These are starting points for a qualified service technician.  On or more fans could also be clogged with dirt.  It certainly won't hurt to open up the set and take a look as nothing beats a through visual inspection.


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-05-24 17:13

    Sorry, I meant to type 48 not 4. Looks like it got turned into a smiley. Anyway, the light just blinks continuously until the video/audio comes back on. So no fan code


       
    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14282
    From: Sewell, NJ

      Posted: 2009-05-25 19:15

    I'd open up the set and take a look.


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-05-26 19:24

    It's very clean inside.

    I left it unplugged overnight to clear another possible software error I had read about. No luck there either.

    Anyone have any ideas?

    Thanks


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-05-27 14:05

    should i consider replacing the ballast? i don't want to start throwing money at this but it seems like the next logical place to go


       
    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14282
    From: Sewell, NJ

      Posted: 2009-05-27 16:27

    You are right.  Lamp driver replacement is the next logical step.


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-05-27 17:43

    is there a good place to buy these? i've seen very few on google when i add in my product number KDF-E42A10, but most of the ones I do find are out of stock (or $150+)

    thanks for all your help. thank god it's re-run season lol


       
    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14282
    From: Sewell, NJ

      Posted: 2009-05-31 18:52

    The part number for the KDF-E42A10 lamp driver (power supply block) is 1-468-936-13.  You may purchase it for $127.98 at http://servicesales.sel.sony.com/ecom/accessories/web/productSearch.do.  Use the Part Number search to locate the part.


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-06-18 12:31

    thanks!


       
    usfbulls89

    Rank: Sony Fan


    Joined: Jun 20, 2009
    Posts: 3
    From: US

      Posted: 2009-06-20 18:04

    I've been having the same issue for over a year and it just turned into the red light of death and now the tv won't come on at all.  I took off the back of the set b/c I heard a high whining sort of noise and thought it was the fans not turning.  Come to find out, there is a little piece of the lamp ballast that makes a whining sound and lights up at the same time (i'm guessing it is some sort of warning indicator).  It sounds like you are about to or already have changed your lamp ballast and I'm very curious to see if that fixed the problem.  Thanks!


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-06-24 20:10

    i'm actually replacing it right now, as soon as i find some installation instructions

    the service manual i have conveniently leaves it out.

    i'll let you know how it goes


       
    Burkemail

    Rank: Sony Fan


    Joined: Jun 24, 2009
    Posts: 2
    From:

      Posted: 2009-06-24 20:40

    We are having the exact same problem.  Our Sony KDF-E42A10 started shutting off randomly.  The green standby light flashes 48 times than it comes back on.  Never get a RED blinking light.  It got to where it was doing it every couple of minutes - very annoying.  We went through all of the message boards, called customer support in the Phillipines, checked to see if the software update applied to our serial number (it didn't).  By chance I found a suggestion at www.esupport.sony.com.  They suggested unplugging the tv from the surge protector and plugging it directly into the wall.  We tried this.  We've been watching tv for about an hour now and it hasn't happened again.  Keeping my fingers crossed, but we've had some pretty bad storms lately and it could be a problem with the surge protector.  Hope the solution is this easy.  I'll post again if the problem comes back.     


       
    Burkemail

    Rank: Sony Fan


    Joined: Jun 24, 2009
    Posts: 2
    From:

      Posted: 2009-06-24 20:42

    Oh sorry - I just reread your original post and see that you already tried changing surge protectors.  


       
    fryedbread

    Rank: Sony Fan


    Joined: May 23, 2009
    Posts: 8
    From: USA

      Posted: 2009-06-24 21:21

    does anyone know where i can access a service manual for the lamp driver install? it seems pretty straight forward but I don't want to break anything


       
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