So in my apartment, tenants aren't allowed to drill holes in the ceiling (it's concrete), but there are junction boxes available where lighting/fans can be installed.
I thought it might be a good idea to repurpose these junction boxes to mount my projector.
To start, I bought a junction box cover, drilled holes in it, and bolted in a projector mount.
I also drilled an additional hole for the power line. My projector uses a typical pc power cable, so I cut off the end that normally plugs into the wall and ran it through the hole in the junction box cover. The colors of the wires from the power cable were a little unfamiliar, but I mapped them brown to black, blue to white, and green to green.
So two things:
1) Is this a good idea as far as weight/support? I was told it was ok to mount a ceiling fan and the projector should be on the lower end of what a ceiling fan might weigh.
2) On my initial test run everything worked as far as the mounting went, but my projector didn't operate normally. It's fans made an unusual noise, the picture flickered, and after a minute or so it would turn itself off. This leads me to believe there might be something wrong with the power supply, but as far as I know, power supplied to the ceiling should be the same as that supplied to the outlets. Is there something I might have done wrong in wiring, or could this be an issue somewhere else?