Question about Mitsubishi WD52527 52" Projection HDTV
Lamp LED is steady red. I obtained and replaced Bulb with Philips 915P028010. Turn set on, indicator LED flashes green.Then a momentary steady green, then turns steady red.Manual says reset lamp timer with TV menu but can't access with no picture..What next ?
SOURCE: Mitsubishi WD-52725
SEDI-POSSIBLY YOUR SET HAS A LOW 5 VOLT POWER SUPPLY.TEST VIA VOLTMETER ON PLUG J-9 WHICH IS ON LITE ENGINE .YOU WILL NEED TO REMOVE BACK OF SET TO MAKE THE TEST.IF 5 VOLT IS LOW BEST TO CALL A MITSUBUSHI TECH.JOE TV
Posted on Nov 30, 2007
Hi,do you hear any strange noises? If you hear clicking or like wanting to turn on it could be the board that powers the lamp it's called the ballast.Here's the instructions to replace it for a samsung ,it works like your mitusibishi:http://www.fixyourdlp.com/guides/samsung/bp47-00033a.php The ballast has a sensor that detects when it's not able to power the lamp or if lamp is not responding,it will flash red when that sensor detects that.When you say: "it began to roll like the vertical and horizontal hold did not work then the sound went out" Do you mean you where getting horizontal lines? If you did that could be the Dmd.his is how it works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Usually when there's a green light it could indicate a problem with the power supply,sometimes some capacitors do go bad. Check all of this and comment on this answer to see how it went.
Posted on Apr 08, 2010
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