Question about RCA Televison & Video
We have a RCA M50WH72S YX1 Projection TV. Lately it has been making a loud buzzing sound while playing. This weekend it took much longer to come on than usual, we use the cool bulb setting to extend the life of the tube. It gradually got brighter and brighter. When it reached about 3/4 of regular brightness there was a clicking sound in the set and the lamp went out. After a span of time that seemed to be a long time but the wife says was about 3-4 minutes, the screen relighted and it was fine. But now every time the set is turned on it does this and seems to be getting longer. Oh, the set has a RCA number 270414 tube in it. Any ideas?
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Posted on Jan 02, 2017
SOURCE: WHINING SOUND
More likely it is the color wheel this set uses---it is located inside the optical engine---part number for it:
267888This part is no longer available from RCA but is available on several sites on the internet (google the part number)
The wheel will when going bad sometimes make a fan like noise or even a high pitched whine.
Check out the sites on the net that sell this for price and decide if you want to attempt to replace it or if you have to have a shop do it for you.
Let me know if you have any questions or need advice.
REGARDS, SD TECH
Posted on Oct 05, 2009
No, LED light engines are different than Mercury Vapor lamp engines. They have different power supplies and different control boards.
Posted on Mar 14, 2010
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