Flickering image through projectors when live music is played

[rpierc03]

I've inherited a dual EIKI projector set up (one front, one rear of the sunctuary). The current system is only being utilized for praise and worship (lyrics mostly) but I would love to begin incorporating videos / presentations during specials and sermons. The problem I'm having is a horrible flicker when our keyboards, drums, or bass start up. This only started recently after our amps, eqs, etc were move from under the stage to an open rack stage right.

One of the projectors is mounted directly above a set of thre subs; the rear projector is far removed from any of the audio components. My first thought was vibration until I noticed the video signal doing the same, though to a lesser degree, on the PC monitor. Being a system admin by trade I began tearing into the hardware and all checks out.

I'll be exploring the full A/V setup later this afternoon and can have a more detailed map of what I'm working with as I'm sure that'll help with troubleshooting.

Thoughts? Suggestions?

[Borggren]

Do you have a hearing aid induction loop installed in your sanctuary? If so, try disconnect the signal to the loop amplifier.
That combined with ground loop problems could easily give you the problem.

[wogster]

Originally Posted by rpierc03

I've inherited a dual EIKI projector set up (one front, one rear of the sunctuary). The current system is only being utilized for praise and worship (lyrics mostly) but I would love to begin incorporating videos / presentations during specials and sermons. The problem I'm having is a horrible flicker when our keyboards, drums, or bass start up. This only started recently after our amps, eqs, etc were move from under the stage to an open rack stage right.

One of the projectors is mounted directly above a set of thre subs; the rear projector is far removed from any of the audio components. My first thought was vibration until I noticed the video signal doing the same, though to a lesser degree, on the PC monitor. Being a system admin by trade I began tearing into the hardware and all checks out.

I'll be exploring the full A/V setup later this afternoon and can have a more detailed map of what I'm working with as I'm sure that'll help with troubleshooting.

Thoughts? Suggestions?

Either there is an interference from the audio, or there are power issues. I would have a look at the video cables, is there anywhere they run near audio cables that run between amplifiers and speakers. There is possibly interference. Another possibility, is that power for the amps in now coming off the same circuit as the projector and is now causing the projector to get a low voltage situation when the amps are producing signal.