Question about Sony KV-36XBR450 36" TV

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KV-36XBR450 color is slightly redder than normal and color is not adjustable, and the TV works but shuts itself off every so often. It can be restarted but then it shutsoff every 30 min or so...colors are too red and not adjustable. The tv was working fine...and suddenly it started doing this. This happened all at once....not a gradual problem....was working fine and has always been an excellent TV but now its not working correctly as described above

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Above are your service manuals. Please use these to troubleshoot and hopefully repair your issue.

Whenever a PSU shuts Off automatically, well this is due to the "Protection Circuitry" detecting a Fault, that is potentially so severe that, the set needs to be shut down, then, immediately, to avoid a fire, and explosion or both. (Often it is caused by the component overheating, and going short circuit.)
Now it is THIS "Cause" that must be found, and repaired, also any damage done by that "Cause" too.
Now irrespective of whatever the Symptom is , one MUST always start at the Power Supply, and make sure this is 100% correct, as if this isn't NOTHING else can ever be. then once one is sure that it is OK, then work out from there to try and find the actual "Fault".
As an aside here the reason that the Red is more redder may indeed be because the Power supply is providing too much voltage/current and it is being overdriven, this and the shutting down are no doubt related.
Again use the service manuals to troubleshoot and replace the board that seems faulty.
All repair data is in the manual as are the parts numbers too, more importantly.
It is my professional opinion though, with a set like this, rear projection, that it should be attended to by a Sony professional, i would advice you to first ask for a "Quote" before allowing any repairs to proceed, this way you can then decide as to repair or replace. I say this as many times with these sets, the costs can ramp up, very quickly, and make any repairs un-ecconomic. in these cases, it is better to put the monies that would have been spent on repair towards a new set, with a full warranty.

Posted on Sep 23, 2010


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Note: This component has a high voltage, please don't forget safety measures.
Thanks for using fixya.

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Here is the info on your problem. These are problems that have been found in the field.

Found cold solder on IC201 on the A Board.
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Found IC9001 on the C Board defective.
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White balance failure 5 times 5:0 or 5:1 • Video OUT (IC9001-IC9003) is faulty. • No raster is generated.
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