I have a marconi 378 radio phono player. The radio works fine, the phono operates but no sound from the needle except what i believe is called a dead short. there are 2 wires to the cartridge one white one red. when i touch the red i get a loud hum from the speakers? any ideas on what the problem could be?

SOURCE: Phono Preamp buzz

Ditto. Double check the ground cable. If it is connected, then try a different set of RCA cables. Also check the connections on your headshell/cartridge. Make sure all 4 wires are properly secure.

- OPTiC
DJ PRO LAB
DJ PRO AUDIO

SOURCE: pioneer pl 200 , no sound well real quiet

The third wire is a ground wire I think. You are running the ttb through a phono input and not through a line level input on your system right?

SOURCE: Turntable wont spin

If everything seems ok with the power , there is usally a small microswitch that sends power to the motor when the tone arm is moved to the start of the record.
The switch might be bad or the lever that actuates it (connected to the tone arm) might be sticking. You may have to take the bottom cover off or remove the platter to see it.
Also make sure the belt is looped over the motor shaft. If the motor runs but the belt still doesnt turn, belt might be bad.

SOURCE: Dual 1009. No audio from the stylus & humming.

I can help with this issue. To keep the platter spinning in manual mode, you have to cue the tonearm up and move it so it is over the record. Then flip the lever to manual. It should stay on in this position. This is a feature and not a bug.

Regarding the audio / humming problem. The Duals had what was known as a muting circuit that engages as the turntable is cycling between rest and play. The fact that you are getting no sound may be an indication that the muting circuit is still engaged. Here are a few things you can try:

1. If the unit was recently shipped, you may need to reset the mechanical function of the turntable. You can do this by locking down the tonearm to the tonearm rest, turning on the power and then flipping the lever for a full automatic cycle. The tonearm will stay fixed to the rest, but the remainder of the mechanical system underneath will be reset to proper positioning (this is detailed in the Dual manual). Of course, this assumes that everthing was OK prior to shipping.

2. Make sure your cartridge is properly mounted with a good stylus, check your tonearm wires (both in the headshell and underneath the turntable and finally, see if you can get underneath the turntable while you run an automatic cycle to see what is going on.

Lastly, if you can't get it going, Check out Bill at www.fixmydual.com He worked on my 1019 and knows them inside and out.

Good Luck,

Jerry

SOURCE: Buzz coming from speakers on phono input

is the wire loose on either end? sometimes the electrical plugs can cause noise due to resistance, so trying different outlets might help too