"Charles Schuler" wrote in message
. ..

"Slim" wrote in message
oups.com...
I have an Optoma EP 731 DMD video projector that died. The bulb doesn't
light. How do I test the bulb? An ohmeter across the leads reads
infinity. Is this normal?


It is open (burned out).

The lamp is high intensity discharge device and should normally read an open
circuit. You can check the lamp only on a known working ballast. Does the
projector have any diagnositcs? Most have an indicator to show when the
lamp fails.

Leonard

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