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My optoma H27 720p projector which is 8 years old will not light up. I tried another bulb and still the same problem. It powers on,makes a humming noise, then stops and restarts several more times. I think it is trying to ignite the lamp during this time. Then this process stops, the fan turns...

I am a frequent visitor to this website as I love home theater, music and quality audio gear. I am in the dreaded 50's age bracket and have been in the store display and fixture industry fir 25 years. With all the store closings, consolidation of retailers my industry is down 40% since 2008 and...

The balance control on my Onkyo P-304 preamplifier works but not without a lot of scratchy noise when turning the knob, or complete cutout. Any ideas if it can be fixed? I tried a bit of contact cleaner with no improvement but am not sure if there is a better way to get the cleaner where it...