How do I test a DLP Bulb to see if it is bad?

[Mopar McNeer]

I am having an issue with my Mitsubishi 60735 (see thread: http://forums.audioholics.com/forums/showthread.php?t=75259).

I pulled the bulb assembly out today to run a few tests on it. The bulb assembly is a simple two wire set up. So I got out my trusty Fluke and checked first for continuity. Nothing. Changed it to resistance and got nothing.

I'm not sure that I used the correct tests on the bulb, so I'm hoping you can help with:

A) Did I test the bulb correctly or not?

If Yes - am I correct that the bulb is junk.
If No - what is the proper way to test a DLP bulb?

Thanks in advance.

 

[Hi Ho]

Those lamps produce an arc over two electrodes. You cannot test it with a multimeter. From what you describe in your other thread, it does not sound like a lamp problem. It sounds like a power supply problem.