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Single sided sound from my RCA/Phono leads

Help!
I have a problem with (one sided) sound coming through my phono leads.
I replaced the suspect leads with a new set and was left with the same problem?
It has nothing to do with...the replacement leads or my soldering skills...the cartridge or its wiring...the channel on my mixer or my amplifier! (my whole set up is Technics!)
I have owned both turntables from new,so it's not like they've been abused (they've never left the house)
I have a feeling that it may be a faulty circuit board?
If I did decide to send it off for repair who can you suggest,bearing in mind
I'm from the UK...

Peace from the east, Hopkirk.
hi, i have a vintage panasonic rd 3500 turntable that i cant get any sound from one side? what is the best place to start checking? i channged out my receiver first to make sure it wasnt the problem. so i know it is either in the turntable or leads.any good ideas? where to start? what to check? sounds good on the one channel.thanks in advance

Posted by on

  • dlundin67 Dec 05, 2008

    i have the same prob with these damn things its not my mixer,cables,cartridge, needles its the ttable, i had 2 of these do it in 1 week, and i took em back, then a month after another one, i put it away and havnt used it, now ithe last one of that set sound went low and i want to throw them at tech suports window, ive tried to find a solution from stanton and cant get one. thanks alot
    dlx
    ps if someone knows the secret please contact me dlundin67@yahoo.com

  • Anonymous Feb 20, 2009

    I have a turn table Numark 1910 that plays only the Right side. I have tried replacing the output cables and also different amp. what could be the cause?



    my e-mail: iverybrooks@gmail.com

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Posted on Jan 25, 2009

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SOURCE: Single sided sound from my RCA/Phono leads

If you are certain the new leads/RCA cables and the soldering work was done properly, and you've determined that the issue is from the turntable and not your mixer.

Then there are 2 other factors that could be causing this issue:

1) Bad Tonearm - look inside the tonearm, where the cartridge/headshell mounts. You'll see 4 prongs. Make sure those prongs are protruding and they all look even. They must also be a nice shiny brass color. If they are dull and/or black, try cleaning them out with an contact cleaner (CAIG Lab DE-OXIT works good) made for electronic components. If any of the prongs appear to be pressed in, try to see if you can get it to bounce back. Those prongs are spring loaded, and sometimes the springs get misaligned. Of course, they also tend to dislodge. If that's the case, then you will need to replace the tonearm altogether.

2) Faulty Cartridge / Headshell - Make sure your cartridge & headshell work properly. The easiest way to do this, is to swap your cartridge with a working one. If you have 2 turntables, just swap them out, and see if that changes anything.

I am going to say, it's more than likely a tonearm issue. There really isn't anything else, other than the Tonearm and RCA's which would cause sound issues. The Circuit board will not affect your sound, unless you burned it, or damaged it in some other fashion when replacing the RCA cables.

As for a Service Center in the UK, not sure of any, but you can contact Panasonic, which is the parent company of Technics - www.panasonic.co.uk - go to the Support Section for a list of auth service centers in your area.

- TWEAK AV LAB
The ORIGINAL TURNTABLE Technicians

Posted on Dec 01, 2007

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Single sided sound from my RCA/Phono leads


If you are certain the new leads/RCA cables and the soldering work was done properly, and you've determined that the issue is from the turntable and not your mixer.

Then there are 2 other factors that could be causing this issue:

1) Bad Tonearm - look inside the tonearm, where the cartridge/headshell mounts. You'll see 4 prongs. Make sure those prongs are protruding and they all look even. They must also be a nice shiny brass color. If they are dull and/or black, try cleaning them out with an contact cleaner (CAIG Lab DE-OXIT works good) made for electronic components. If any of the prongs appear to be pressed in, try to see if you can get it to bounce back. Those prongs are spring loaded, and sometimes the springs get misaligned. Of course, they also tend to dislodge. If that's the case, then you will need to replace the tonearm altogether.

2) Faulty Cartridge / Headshell - Make sure your cartridge & headshell work properly. The easiest way to do this, is to swap your cartridge with a working one. If you have 2 turntables, just swap them out, and see if that changes anything.

I am going to say, it's more than likely a tonearm issue. There really isn't anything else, other than the Tonearm and RCA's which would cause sound issues. The Circuit board will not affect your sound, unless you burned it, or damaged it in some other fashion when replacing the RCA cables.

As for a Service Center in the UK, not sure of any, but you can contact Panasonic, which is the parent company of Technics - www.panasonic.co.uk - go to the Support Section for a list of auth service centers in your area.

- TWEAK AV LAB
The ORIGINAL TURNTABLE Technicians

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