Question about Toshiba TheaterWide 52HM84 52" Rear Projection HDTV-Ready Television

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NO PICTURE, NO SOUND AND LANP GOES OUT AFTER STARTUP

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  • BRUCE HAYS Dec 08, 2012

    THIS IS FOR SD TEC: THE LAMP IS OEM (REPLACED ABOUT 3 YR AGO. MAIN CHASSY

  • BRUCE HAYS Dec 08, 2012

    FOR SD TEC: THE MAIN CHASSE WAS SWAPED OUT (IT WAS USED BUT CHECKED OUT)

  • BRUCE HAYS Dec 08, 2012

    FANS ARE SPINNING , COLOR WEEL IS TURNING, BUT SAME PROBLEM STILL EXISTS

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We will presume the lamp is good and not the problem---let me know when last replaced and if a generic or OEM lamp.

This leaves a few suspects other than a power supply issue---The ballast is one but not real likely if lamp makes it on even for a short time, Do we when the lamp comes on hear any high pitched whine or grinding or fan like sounds (not the fan itself but something that sounds like it?)

About the only other simple cause would be the color wheel which faces the lamp---if not turning, or too slow, of pieces missing it can do this---It will cause the set to detect no wheel movement or too slow and turn lamp off and set with it.

Look with lamp removed where the lamp faces--worth a look.
NO PICTURE, NO SOUND AND LANP GOES OUT AFTER START - 12_7_2012_3_48_03_pm.jpgThis is one from a Samsung but all of them look pretty much the same.

Posted on Dec 07, 2012

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