Slim wrote:
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?
Thanks.
Slim



Depends on the bulb. If this is a discharge lamp as modern projectors
use then yes, it will read open circuit until you get a few thousand
volts to ionize the gas. If it's a very old projector with a tungsten
lamp then it should read close to zero ohms cold.