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Post by jason05216 on Oct 10, 2017 17:15:51 GMT -5
Just got a PT 100. Hooked my old Pioneer TT up and first there was a really low frequency buzz. I unhooked everything and hooked it up again. Now there is a slow ticking sound, both channels. I didn’t have this with the old receiver that I had the TT hooked to before. Ground seems good. There is no noise with nothing attached to the phone inputs. Possibly the RCA cabling from the TT is bad? Any other things I should check?
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Post by novisnick on Oct 10, 2017 18:16:40 GMT -5
Just got a PT 100. Hooked my old Pioneer TT up and first there was a really low frequency buzz. I unhooked everything and hooked it up again. Now there is a slow ticking sound, both channels. I didn’t have this with the old receiver that I had the TT hooked to before. Ground seems good. There is no noise with nothing attached to the phone inputs. Possibly the RCA cabling from the TT is bad? Any other things I should check? Id recheck cables and setting on the PT, is the cartridge MM or MC? Does the TT have a built in preamp? Was your TT connected to a phono in on the AVR? Not all AVRs have phono stages. Im just trying to track this down for you. Good luck! |
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Post by DavidR on Oct 10, 2017 18:41:33 GMT -5
What might be different from your original set up vs new set up?
i.e. does the PT100 have an earth ground on the power plug and you didn't with your original gear?
Earth ground and ground thru the neutral is two different animals. Earth ground can cause hummmmmmmmmm
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Post by jason05216 on Oct 10, 2017 21:37:42 GMT -5
This is an old TT that does not have a built in phono stage I used the ground post on the PT 100 which is what I used on the old receiver I was using. I will confirm that I have the correct setting for the cartridge. The TT power cord down not have a ground lug on the plug. The PT 100 doesn’t have a ground lug, same as my receiver. I have the TT plugged directly into the wall outlet now, before I had it plugged into an outlet on the back of the receiver. Other than the switch for the cartridge type that’s the only thing that is fundamentally different than the way I was using it before.
Thanks for the input I appreciate it. I figure you guys will have a better idea where the problem might be.
Just checked the cartridge switch, it was in the correct position. But, it made the same noise in either position.
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Post by DavidR on Oct 10, 2017 21:55:25 GMT -5
Try changing the RCA cables.
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Post by jason05216 on Oct 11, 2017 9:31:38 GMT -5
I'm going to change the cables but before I get that done is there a way to test the ground?
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Post by DavidR on Oct 11, 2017 10:26:10 GMT -5
test the ground from where to where?
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Post by jason05216 on Oct 11, 2017 13:09:14 GMT -5
I found what was causing my problem. I had plugged the TT into an outlet that has a powerline adaptor also plugged into it. I removed the powerline adaptor from the outlet and the noise went away. I got a different surge protector and plugged everything into a different outlet that does not have a powerline adaptor plugged into it and now there is no noise on the phono stage.
Thanks for the input guys.
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Post by DavidR on Oct 11, 2017 14:56:45 GMT -5
That'll do it.
Happy to hear you found and fixed the problem.
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Post by novisnick on Oct 11, 2017 15:27:51 GMT -5
I found what was causing my problem. I had plugged the TT into an outlet that has a powerline adaptor also plugged into it. I removed the powerline adaptor from the outlet and the noise went away. I got a different surge protector and plugged everything into a different outlet that does not have a powerline adaptor plugged into it and now there is no noise on the phono stage. Thanks for the input guys.  |
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Post by leonski on Oct 17, 2017 1:15:49 GMT -5
Should be required reading for anyone having Phono noise issues. Good resolution and another black mark on those pesky wall warts.
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