donjasjit
New Member
Hi friends, just a query. I have been using the Optoma 141 projector for the past year without problems.
I have a issue however, my UPS APC BR1100CI Projector makes constant hum. It is distracting .Any suggestions.
I have a issue however, my UPS APC BR1100CI Projector makes constant hum. It is distracting .Any suggestions.