Question about Samsung (LTR268W) Television

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Samsung 50 inch DLP

The tv will shut off for no reason and the lamp light will blink sometimes. so i purchased a new lamp and it still shuts down a couple of times the temp. led has flashed. could this be a polarity issue or ground?

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Most Dlp sets have a fan for cooling the bulb this should start at switch on if it doesnt bulb will not light.
Check fan is pluged in & that blades can turn freely.

Posted on Oct 11, 2007


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The answers above are correct. It's either the lamp or the color wheel. Testing the lamp is pretty straight forward. Use an Ohm meter to see if the it's filament has continuity. It's unlikely that a good color wheel would fail immediately after changing the lamp. Look to see if some wiring is out of place and rubbing the wheel causing the noise you described. A jammed but otherwise good color wheel would cause the TV to shut down and display an error code.

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Power issues (Tv not turning on) were typically due to faulty ballast. While the TV reports a bad lamp it is the ballast itself causing the issue. Samsung is well aware and will replace both the ballast and the lamp (since the lamp can be prematurely aged but the bad ballast). After replacment most people stop having issues.

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