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Mains Hum on Ferguson FRG-R121D

Mine has also just started making this hum - 14 months after puirchase, so guarantee expired, of course - very annoying.
As I only use is as a tuner, using the Line Out to my sound system, with volume at minimum, I have solved it by plugging in some old earphones, hence taking the loudspeaker out of circuit.
Wouldn't help if I was using it as a standalone unit, of course.

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Do you have a home theater line conditioning surge protector connected to this unit? like Monster or Panamax? What's probably happened is either a voltage spike or brownout has blown a resistor or diode in the unit, Or, Another circuit in your home has a loose connection and is creating a ground loop. It could be as simple as a light bulb getting ready to blow. It can be caused by just about any device in the house that "seems" to be working fine, yet it affects your receiver. No kidding. If your receiver has a three prong AC plug, you can go to Lowes or Home depot and get a two prong adapter for about a dollar, plug that in, if the noise dissapears, you know it's a ground loop. Also, check all your interconnect cables between sources like CD/DVD/etc. If they are the cheap cables that came with the products, throw them away! they are worthless and you may as well be listening to AM radio!. Good interconnects are actually more important than expensive electronics!. If you have ever gone to Wendy's and had a Frosty, try and **** it thru a straw, it doesn't work and your equipment is starving, let alone the cheap cables are notorious for noise and have NO ground shield to speak of. If you have good cables, awesome! make sure the ends are tight, analog rca ends have a way of loosening over time as well from expansion and contraction. Pull each one off and lightly twist the gold ends tight. I hope I haven't put you on overload! I have a tendancy of doing that, I'm just a perfectionist at this stuff. If you try all this and still have noise, post a comment and there are a few other things we can try before "off to the service shop" Hope this helps.

Posted on Jun 24, 2009


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