How do I know if its the bulb or the power supply? This unit had given me intermittent issues for about a year now. Sometimes during power on, it'll buzz for a second, pause then buzz for another second. Then it gives an error code on the LCD, usually stating a bulb error. There are about 1150 hours on the this bulb. I have 2 more brand new bulbs but haven't changed one yet, figuring if its the power supply, why waste a good bulb.
But this last time that it buzzed, it gave the error. I unplugged it and now it appears to be DEAD. No lights, sounds, LCD...nothing.
I'm in the IT repair world, but I didn't want to mess with this until I learned more about it.
If ANYONE has any input, I'd greatly appreciate it.
PS. the woman I bought it from says that the power supply was repaired about 4 years ago. And it hasn't been used all that much since.