Ed has bought three AV receivers over the last five years, and all three have died in less than two years. Leo says that adding a surge suppressor that does power conditioning and an uninterruptable power supply will guard against "dirty power" and power spikes that can happen after a power outage. It's not normal for AV receivers, or any tech, to die too quickly and consistently. So it points to something other than the device itself. Leo also recommends not putting them in a sealed cabinet, which can cause overheating. You can also look for a line conditioner.
David's Denon AV receiver turns on/off randomly. What's going on? Leo says that all home theater gear are computers now, and as such, they are all solid-state. As such, they're not very fixable. But it could be an intermittent power spike that is causing the AVR to turn on/off. A power conditioner could fix it by providing a steady supply of power without interruption. That's the one solution that David can try. Absent that, it's probably cheaper to buy a new AVR rather than try and repair it. Power conditioners include Trip Lite, APCC.
Dave has bought two iMacs and they've both died after two days. Leo says it sounds like a power surge in his house that's causing it. Leo advises a power conditioning surge suppressor. It'll have a battery and circuitry that cleans up the power so there's an even flow without surges. Leo likes Tripp Lite and APC, but CyberPower is Leo's current favorite.
Dick says that when using an uninterruptible power supply, she'll need to use an isolation transformer with it. It sits in between the UPS and the computer that cleans the power and evens out any spikes. The trouble is that nobody buys them because they can be expensive.
Fred has a monitor that suddenly went out. So he replaced it with a TV and now it's gone out as well. Leo says that the original monitor may not be bad, it could be the cable. It could be a bad cable or the refresh rate settings in his computer may be incorrect. But since it happened when he turned on his printer, his power connections could be to blame and putting in an AV power supply could be helpful. They have surge suppression that will filter the power and keep it consistent.
Becky bought her first Mac and it's been in and out of genius bar with repairs. It keeps dying and she's worried because her Apple Care is about to run out. It could be that her power is fluctuating causing components to fail. In that case, she can get a UPS from TrippLite that will condition her power. She would want to find one that is constantly conditioning the power, and those cost a little bit more.
Jeff bought a new modem for his computer and he's getting a low buzz from a radio nearby. He's moved the radio and the buzz continues. Leo says it's probably not the radio then, it's likely Jeff's power. He can go to Radio Shack and get a "ferrite choke" that he can attach to the power cable that stops it.
Leo says that it could be the sound card, and he should try to use a standalone card. If that doesn't work, then try using a USB headphone set and see if that fixes it. Otherwise it could be a driver problem. The power supply can also be the culprit, and Leo thinks that's an underestimated source of common problems in computers.
Scott saw the Dark Knight Rises, and he really enjoyed it. But fans will be a bit lost if they haven't seen the first two films. What's interesting is that it isn't in 3D, because director Christopher Nolan didn't want it on 3D because the first two weren't in 3D either. He also shot the film, which has become quite a rarity these days as Hollywood has begun abandoning film in favor of digital.