Question:

What can cause no picture and unlit lamp?

by Guest20534300  |  9 years ago

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Have an RCA Scenium HDLP50W151YX1 TV No picture (black screen) but sound. Lamp is unlit and fan is off. Lamp is intact and is not blackened. High pitched whine from DLP module. What do I look for that will lead me in the right direction to repair. I have 30 years in Semiconductor equipment maintenance and design but little if any work with TVs but I can fix just about anything if I have a little direction. How can I define failure mode ie lamp, ballast, colorwheel?

 Tags: cause, lamp, picture, unlit

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