Question about Toshiba TDP-T3 Multimedia Projector

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Toshiba tdp-s3 projector

Amp runs fine, replaced lamp last year, was using, went back to it and was dark tried the old lamp, but still no light. red led flashing, reset lclock, flashed green, but still did not light

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  • air_chavez Mar 17, 2009

    I have the exact same problem. When you power it up the led light will flash green and you can hear it try to power up the bulb but nothing. Have you found a fix for this?

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It sounds like the high voltage portion of the power supply (ballast). Turn to the solder side of the P/S board and orient it so the silkscreen is legible. Check for burnt resistor R573, 2Kohm. It's center of board, 3/4" from bottom edge. If that's OK, check 3.3kohm resistors R621, 622, 625, 628, 629, and 630. They're in the top right corner. They tend to crack. Good luck.

Posted on Feb 20, 2010

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Still looking for a schematic, i'm a tech for 44 years myself, but on unfamiliar territory don't travel without the road map. The bulb probably isn't getting high voltage, but i'm unfamiliar with the circuitry. y'all showed having the schematic. but i couldn't operate your forum page

Posted on Dec 31, 2008

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JUST PUT NEW BULB IN A TOSHIBA TDP-S20 ON 2/18/11 . BOUGHT PROJECTOR IN 2004 USED UNTIL THE BULB HRS RAN OUT . BULB NEVER BROKE / BURST. ON START UP WITH THE NEW BULB IN MACHINE BOTH FAN AND LAMP LIGHTS...


Your new bulb is not lighting.
Check the connections are correct.
Have you also tried putting back old bulb to see if it works.



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I heard a pop and now the projector only shows black and white.


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Hi 123d

Have you tried resetting the lamp timer ?

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You will either be replacing the Main Power Board or the Ballast Board ( Lamp's powersupply ) The symtoms you described sounds like a faulty Ballast.

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