Hi. I used to post about front projectors, but I haven't been active for a while. The A/V gear in my primary home (JVC 65" LCOS rear and RS-15 front projector) has never had an issue, but we own another home in the Virgin Islands (St. John), where the AC mains power quality is sketchy, and quite prone to outages and fluctuations. Down there I have a 42" Sony LCD TV and an Epson 8350 front projector as display devices, with a Sony Blu-ray player and a cable box / DVR as sources. I have a pair of Monoprice splitters, wired such that either source can feed either display, using their HDMI 1 and 2 inputs. The projector cables are 25' long. Normally everything works fine, but during an electrical storm the other night the pool light blew out, the cable DVR fried, both splitters failed, and the projector now claims that both HDMI inputs are "unsupported". The last time that this error message appeared, Epson said that the HDMI input board had failed, and that I needed to return the projector. I'm pretty sure that this is what I am facing again, although I am 1500 miles away, and debugging things remotely.
I've concluded that I need to protect my devices from the AC variations and electrical storms. I was already using surge protectors for everything, but that hasn't worked. I bought a Tripp Lite line conditioner last year, but it had a very audible hum, plus I chaffed at the continuous wattage drain that it would impose. Misplaced economy, in retrospect, but the electricity rate down there is $0.45 per kW-hr. Mostly the hum seemed unacceptable.
Between bad AC mains control, and line transients due to electrical storms, what should I do to isolate the A/V gear? It would also be nice to minimize the continuous power drain of any solution. The audio gear is modest (AMP-100 and a music player), so this isn't a system with crazy amounts of power requirements. The projector draws the most at 275 watts, but perhaps it is only necessary to protect the sources and splitters that feed it, since its HDMI inputs appear to be its weak link.
Oh, and we leave our home, "Coconuts", in short-term vacation rental when we aren't there, so do consider it for a future vacation. It's a very nice place, on a very nice island; its web site is www.coconutsvilla.com
Thanks in advance for your advice,