Jeff has an online radio network that he runs on a series of Mac Minis. But he found a bug in the audio that's causing a whine. Leo says that it's likely from the digital-analog converter (DAC) chip that has failed. He recommends getting a USB DAC, rather than just paying to repair it. The quality audio will be better. But if he has Apple Care Plus, Apple will just replace the logic board.
John calls in to talk about how you can get a USB to PS2 adapter for your old keyboard and computer if yours doesn't have a USB port. Leo says that if you are still using a computer that doesn't support USB keyboards, this is a good way to do so. However most, if not all, computers support USB in some form and way.
Scott's USB lightning cable has stopped working in his car. Says there's no music available on the car screen. Leo says to try a new cable to eliminate the possibility that the cable is going bad. Also, there may have been an update to CarPlay that isn't supported by the car stereo head unit. Apple may have changed something in a recent iOS update. Another option is to turn the phone off completely and then turn it back on. That'll reset the network settings. Check the stereo's website under "support" to see if there's any technote on the issue.
Tom got a notice from Microsoft to update Windows 10, but now it won't recognize his keyboard, so he can't log in. Leo says that Tom can eliminate the keyboard as the problem by trying it with another computer. But likely, the update deleted or corrupted the USB drivers. Log into safe mode and see if it works. If you can at least get into the BIOS setup, then you know it isn't the keyboard.
Bernie ordered a Blackmagic ATEM Mini to learn how to do video streaming and switching. But he hasn't gotten it yet. Leo says that it works great as an affordable streaming device. But he has a problem with connecting his webcams because it requires HDMI in. Leo says that he uses DSLRs because they offer clean live HDMI out. Is there an affordable USB to HDMI adapter?
Stacy's hard drive is filling up after scanning a ton of photos. Her computer only has two USB ports. Does she need a hub in order to connect a USB thumb drive with an external hard drive? Leo says no. She should be able to plug them both in, and then drag from one to the other. But remember, if she deletes those images off the thumb drive, she still only has one copy. She should have three. Use Google Photos to upload them. Flickr gives 1000 photos for free. Shutterfly is free. And if she is an Amazon Prime user, she gets free photo backup as well.
Gina is getting a blue screen on her Mac. Eventually the computer comes back, but she wants to know Why? Leo says that it could be a problem with an external peripheral. Unplug everything except your keyboard and mouse, and see if it repeats. It sounds like a communication issue between your peripherals. A bad driver or a failing USB port. Then plug each extra device in, and see which one causes it. Then you'll know which device is causing the problem, and then you can go to the website and get an updated driver.
Tim wants to know if an EcoTank wireless printer can print from a USB thumb drive. Leo says most wifi-enabled printers have eliminated the need for it. But if you want to print without a computer, that's a good way to do it. From the chatroom - The Ecotank 7700 has a USB thumb drive for that purpose. You can also connect your camera.
Jerry is into ham radios and he wants to know if a software-driven radio is a way to go. Leo says that everyone is going with software-driven radio design now, and a lot of Chinese companies have flooded the market with inexpensive models. SDR USB dongles can even turn a computer into ham radio. But he's frustrated because it doesn't save his information or channels and he has to reacquire everything. Leo says that sounds like a flaw in its design. It could also require a driver for that USB dongle. Or, turn on the computer. Let is power-up, and then plug it in.
Dickie D is back with Smart Phone Disco Lights! It doesn't rotate, but the flashing colorful disco lights inside give that illusion. It can be powered by your smartphone, an external battery charger, or even plugged into a computer. Once plugged into a power source it lights up to the rhythm of your music or even your voice! As you'll see in the video it does give off quite a bit of light for something that small. On Amazon, they are only $12.00 for three of them! But wait, there's more. Each one of the three came with adapters for micro-USB, USB-C and a lightning connector.