Question about Homedics iSoundSpa Max Clock Radio with Docking Station for Apple iPod
If this is like my unit it is a high pitched squeal. I received my unit as a gift for Christmas 2007 and I thought it was defective. I contacted Homedics and they sent me a replacement but the problem persisted. As licensed amateur radio operator I am versed in electronics so I decided to track down the source of the noise. It turns out that the 16VDC power adapter is the source of the noise. It is what is called a "switching power supply" and is unfortunately not well filtered causing the high pitched squeal. I was able to get rid of the noise by modifying the power adapter and adding a 2200 microfarad capacitor in parallel with the output. This filters out the high frequency ripple and gets rid of the squeal. An alternative solution would be to search the Internet for a better 16VDC power adapter. It must supply 2 amps of power and have a 5.5mm OD/2.1mm ID center positive power connector.
Posted on Sep 27, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 05, 2014 | Fender Musical Instruments Corporation...
Jun 26, 2012 | 2006 Toyota Tundra
Jun 05, 2011 | Altec Lansing GT5051 Computer Speakers
Apr 04, 2011 | Audio Players & Recorders
Sep 26, 2010 | Hitachi 500GB 7200RPM 16MB BUFFER SERIAL...
Jan 22, 2009 | Heating & Cooling
Jan 01, 2009 | Dell A215 Computer Speakers
Dec 17, 2008 | Computers & Internet
277 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: