Ushio S400DD arc just glows; doesn't fire up HELP! - Page 3

dnsey · 2nd March 2006, 06:19 PM

Quote:

So my S400DD Ushio decided to become just a glowing arc the other night. Won't fire up completely. Just a blue arc that wavers. Not bright at all. I figured the bulb is done (faulty).

Have you tried tapping the lamp while it's glowing (gently, with an insulated rod, protecting yourself against possible explosion!)?
For some reason, this sometimes gets them going again, and having struck once they continue to do so.
I'm sure that someone here can say why this happens!

Ben_Tech · 21st March 2006, 12:30 AM

My S400DD failed within 200 hours. The arc chamber darkened and a bulge formed in the outer glass shell. Needless to say it stopped striking. The lamp was not abused. *shrug* Even worse than commercial projector lamps -- at least they are only $50 each instead of $350, but if they only last 1/7th as long, it's a wash.

That would come down to luck.

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21st March 2006, 12:30 AM	#22
Ben_Tech diyAudio Member Join Date: Dec 2004 Location: USA	My S400DD failed within 200 hours. The arc chamber darkened and a bulge formed in the outer glass shell. Needless to say it stopped striking. The lamp was not abused. shrug Even worse than commercial projector lamps -- at least they are only $50 each instead of $350, but if they only last 1/7th as long, it's a wash. That would come down to luck.

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