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Turntable Help - Excessive Distortion

post #1 of 9
Thread Starter 

My Technics SL-Q202 died a few months ago but I have recently inherited a Dual CS5000 TT but I am currently having issues when playing any vinyl. On any record that I play I experience way too much distortion, specifically with the vocals, which appears to increase as the record continues to play. I assumed that this was due to the TT being improperly setup so I found the manual and I followed the directions for the setting the VTA, Anti-Skate, and VTF. This did improve the problem but substantial distortion still remains. I made a recording of one of my 45s so you can hear exactly what I am experiencing because I am no longer sure what the cause of this problem it. http://k005.kiwi6.com/hotlink/83m9b203or/fixyouvinyltest.mp3

 

I have also read that replacing the stylus might fix the problem but I want to make sure before I make a purchase. Right now it is using an Ortofon OM 20 cartridge which I believe was the stock cartridge supplied with the TT. Any help is greatly appreciated. Thanks

post #2 of 9

It's hard to judge by listening over internet, but it does sound like it needs a new stylus. I would recommend finding a cheap one with a return policy to verify the issue. It may also need some good ol' fashioned deox-it TLC too.
 


Edited by brunk - 6/28/12 at 4:19pm
post #3 of 9
Thread Starter 
Quote:
Originally Posted by brunk View Post

It's hard to judge by listening over internet, but it does sound like it needs a new stylus. I would recommend finding a cheap one with a return policy to verify the issue. It may also need some good ol' fashioned deox-it TLC too.
 

 

I have done some more testing and I used some other Orofon styli that I had which are also older but worked fine last time I used them. When using them I still received that same result as before which leads me to believe that a new stylus will not fix the problem now. Also their was a problem with the RCA connectors which was fixed by splicing on new ends but it was sort of a patch job. Could a bad connection/connector be causing this problem? Right now the TT is unlistenable so my goal is just to get it sounding right. I am still not 100% confident that I have all everything set right but I have set it all according to the manual.

post #4 of 9
Quote:
Originally Posted by csteimnetz1 View Post

 

I have done some more testing and I used some other Orofon styli that I had which are also older but worked fine last time I used them. When using them I still received that same result as before which leads me to believe that a new stylus will not fix the problem now. Also their was a problem with the RCA connectors which was fixed by splicing on new ends but it was sort of a patch job. Could a bad connection/connector be causing this problem? Right now the TT is unlistenable so my goal is just to get it sounding right. I am still not 100% confident that I have all everything set right but I have set it all according to the manual.

Well, you need to be 100%, do you have a tracking force gauge to verify that the controls are actually calibrated? One more thing, did you make sure the Phono Pre is set accordingly to MM or MC? That can be the cause too.


Edited by brunk - 6/29/12 at 9:19am
post #5 of 9
Thread Starter 
Quote:
Originally Posted by brunk View Post

Well, you need to be 100%, do you have a tracking force gauge to verify that the controls are actually calibrated? One more thing, did you make sure the Phono Pre is set accordingly to MM or MC? That can be the cause too.

 

No unfortunately I don't have tracking force gauge. They are about $25 on Amazon. Do you think I should order one? I am using the phono pre in my Onkyo receiver and I can't find a MM/MC switch. I bypassed the phono pre and sent it straight to my A/D and the distortion was still there. Thanks for you help.  

post #6 of 9
Quote:
Originally Posted by csteimnetz1 View Post

 

No unfortunately I don't have tracking force gauge. They are about $25 on Amazon. Do you think I should order one? I am using the phono pre in my Onkyo receiver and I can't find a MM/MC switch. I bypassed the phono pre and sent it straight to my A/D and the distortion was still there. Thanks for you help.  


Go to onkyo's website and see what phono pre it is --MM or MC. It's probably MM, but you never know. Now, do you know if your turntable has a MM or MC cartridge? See if the cartridge has some kind of description on it. If not, google the cartridge Model # or your turntable Model # and see what it is...

 

Always happy to help. The world is a better place with music L3000.gif


Edited by brunk - 6/29/12 at 8:36pm
post #7 of 9
Thread Starter 
Quote:
Originally Posted by brunk View Post


Go to onkyo's website and see what phono pre it is --MM or MC. It's probably MM, but you never know. Now, do you know if your turntable has a MM or MC cartridge? See if the cartridge has some kind of description on it. If not, google the cartridge Model # or your turntable Model # and see what it is...

 

Always happy to help. The world is a better place with music L3000.gif

 

Yeah I checked my cartridge, the Ortofon OM-20, and it turns out it is a MM. Also I checked what the phono pre for the Onkyo TX-8255 and it is MM also like you said. So that isn't the problem. That still leads me back to thinking that I do not have my TT setup correctly. Tomorrow I will give it another shot and play around with the settings to see if I can get any results. Otherwise I do not know what else to do. I am dying to spin some vinyl again... 

post #8 of 9
Quote:
Originally Posted by csteimnetz1 View Post

 

Yeah I checked my cartridge, the Ortofon OM-20, and it turns out it is a MM. Also I checked what the phono pre for the Onkyo TX-8255 and it is MM also like you said. So that isn't the problem. That still leads me back to thinking that I do not have my TT setup correctly. Tomorrow I will give it another shot and play around with the settings to see if I can get any results. Otherwise I do not know what else to do. I am dying to spin some vinyl again... 


You still have three more options I can provide for you.

1) Buy a tracking force gauge and cartridge alignment tool and ensure it's calibrated (recommend having these regardless anyway)

2) If that doesn't work, take it to a repair shop.

3) Buy a new turntable package :)

 

Ortofon OM-20 Owner's manual


Edited by brunk - 6/30/12 at 8:30pm
post #9 of 9
If the tracking force and bias (anti-skating) are set up correctly, and you have a new stylus (the OM-20 was a good budget MM cartridge which was supplied as stock with the package, and is now probably quite old, both in therms of stylus wear and ageing of the suspension rubber), it is possible that the cartridge is not aligned correctly in the headshell. This would account for the distortion varying with the position on the record. Use a 2-point alignment gauge to make sure that overhang and alignment are spot-on (this is VERY important). If this does not do the trick, I would suspect the lateral arm bearing - you will need expert help to determine this, though. Given the number of CS5000s out there, though, you should be able to source a SH replacement. The CS5000 was not a bad deck in its day, and it is worth getting it working again!

I must stress, though, that playing your records with tracking distortion is likely to damage them irreparably....
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