"JavierM" wrote in message
oups.com...
Hello, I bought a new Denon DP300F turnatble and I was a bit
disappointed and worried as it came without a ground wire. I plugged
the turntable to my Denon amplifier, at the phono input and there is a
small noise, something like a small zuuuuummmmmm

How can I solve this? Can I put myself a ground wire, from some inside
parto of the player? A little help would be appreciated, sorry for my
errors, I'mnot english.

Firstly, the DP300F includes its own RIAA preamp, so if you are plugging it
into the amplifier's phono input, you can expect a lot more noise and high
distortion as well as a very unbalanced frequency response. You MUST use one
of your amplifier's high-level (line) inputs.

Assuming you are using a high-level input, then first check that a ground
wire is necessary. Take a piece of wire and connect one end to the ground
point of your amplifier. Then, remove the insulation from a few millimetres
of the other end and touch this to the pickup arm. If the hum stops, then a
ground wire is the answer. If the hum doesn't change or even gets worse,
then you have other problems.

If you have proved that the ground wire works, then look under the turntable
plinth and attach the ground wire to a metal point on the pick-up arm base.
The wires coming through the arm may have a convenient ground tag, or you
may have to unscrew a mounting bolt and wrap the wire under it. Make sure
that the ground wire does not interfere with the free movement of the arm.

Good luck

S.



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