Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Picture fades to blue after a minutes

TV comes on - good sound good picture - then after a few minutes it fades to blue - good sound - blue picture

took the back off and watched - after a few minutes the red and green tubes dull and I'm back to blue

How do i pull off the front bezel and check the heaters under the tubes???

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  • larryr1960 Jan 29, 2009

    how can i see the service menu if all i can see is blue? Why would the red and green tubes go off?

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There wil be a is chip iv ur tv board backside in that check the convergenve ic tat might be burnt out 

Posted on Jan 27, 2009

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It is convergence problem in your tv you need to replace the convergence IC .

The convergence setting is not proper in your tv . You need to access convergence setting through service menu .


Posted on Jan 27, 2009

  • SAM ANDERSON Jan 29, 2009

    The problem could be on your SSB board .But mostly it tends to be convergence issue in your tv .

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1 Answer

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Find the vertical IC and check for very small cracks on the solder joints of its pins and resolder (approx. 10 Pins). Also check in the same area for a 1 micro farad at 50 vdc capacitor that goes bad and replace it.

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Hello......
First reduse the G2 voltage for the blue c.r.t,and watch if the unit works for longer period (offcource blue colour will be not present).After reducing G2 voltage to blue c.r.t still behaves the same than c.r.t is faulty and you have to replace.
Pls count the red led blinking when it goes off,incase it goes to std by mode.
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1 Answer

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you are experiencing one or more of three things
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if you hire a sony authorized technician they should be well aware of this problem.

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