Question about Sony KP-51WS500 51" Rear Projection Television

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Screen turns red after 10 minutes

I contacted a sony repair facility and they told me that I would need a red tube because they dont rejuvinate any more, but the problem is that the red tubes are discontinued. Do you know how to get the red tube for this tv?

Posted by joesparts on

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Mike Longo

Mike Longo

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First, lets see exactly what is happening and what is causing it. If your picture starts out fine, and after 10 minutes or so you notice that the picture is getting redder, and the redness slowly gets worse and worse, until finally there is red everywhere with faint curved lines, then chances are your Red Screen control is set just a hair too high. This is a very simply thing to correct. If, on the other hand, the picture is fine for 10 minutes or so and then suddenly flashes very bright red, followed by the set shutting down, then your red picture tube has developed a short in it, usually between the heater and cathode. A good tech might be able to remove the short by arcing. What is your set doing? The KP-51WS500 is one of the newer 16x9 1080i HD sets and the tubes are available from any Sony distributor. When they told you the tubes are not available, that was their way of saying they do not want to bother helping you. The Sony tubes are quite inexpensive, costing about $175, and they come complete with sealed coolant chambers, so replacing a tube is quick and simple.

Posted on Aug 31, 2007

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The problem is that these TVs are known to have defective CRTs but Sony can no longer supply them. There is a company in Texas that rebuilds them, but its an expensive repair.

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Sony knew about this issue way back in 2002 but only resolved complaints for a limited time and did nothing to notify owners whom they could easily indentify by serial number.

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1 Answer

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