This bloody record deck is driving me nuts.... My mum's Dual 505 going into a NAD 3020 amp... With nothing connected to the amp bar headphones, I can just about hear an extremely faint 50Hz hum under the hiss with the volume on max. Plug in the record deck - but don't connect the mains just yet and the hum increases slightly. I'm ok with that - I get that the Phono input is very sensitive. Plug the deck into the mains and the hum gets a bit louder, but is barely perceptible at normal volume settings. Put a record on and the moment the needle hits the vinyl, the hum becomes much louder and is detectable while the music is playing.
WTF ???
I've had the deck in bits, checked all the connections (not that there's much in there) - the +ve & -ve of each channel connect to the RCA jacks fine, the body of the cartridge is connected to the ground wire. How can a needle touching vinyl cause 50Hz hum ??!!
I'm wondering if the cartridge might be buggered - it's only a cheap Audio Technica one.
Donald Trump needs kicking out of a helicopter
Offset "(Emp) - a little heavy on the hyperbole."
Comments
Try putting the needle on without the turntable turning - that will eliminate (or indicate) something to do with pressure on the cartridge.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Offset "(Emp) - a little heavy on the hyperbole."
Offset "(Emp) - a little heavy on the hyperbole."
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Offset "(Emp) - a little heavy on the hyperbole."
Nil Satis Nisi Optimum
Offset "(Emp) - a little heavy on the hyperbole."
Seriously: If you value it, take/fetch it yourself
Offset "(Emp) - a little heavy on the hyperbole."
Supportact said: [my style is] probably more an accumulation of limitations and bad habits than a 'style'.
Offset "(Emp) - a little heavy on the hyperbole."
Supportact said: [my style is] probably more an accumulation of limitations and bad habits than a 'style'.