Question about Technics SL-1210 Turntable

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One sided sound...but this time I have replaced rca/phono lead with a new one,what else could it be?

One sided signal (right side only) already replaced lead,so that should rule out faulty cable...any other suggestions would be appreciated.

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Re: one sided sound...but this time I have replaced...

If you already replaced the RCA cables (red/white), and can rule out your cartridge/stylus, then the only last remaining part that could be faulty is the tonearm itself. The part is sold HERE, however, self-replacement is not recommended, unless you have soldering skills.

Question, did you replace the RCA cables direct from the board - unsoldering the old ones, and soldering on the new ones? Or did you just splice to the old cables? If you did not replace from the root, this would not solve the problem of a faulty cable.


Posted on Mar 21, 2008

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Re: one sided sound...but this time I have replaced...

While the TT is plugged into the stereo and ON..volume up a wee bit, touch the "hot -signal" leads,one at a time, with tweezers or a metal pick .
See if you get hum from both channels. If you do, its your cartridge that poop or stylus.

Posted on Mar 12, 2008

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Re: one sided sound...but this time I have replaced...

Have you tried using a different needle?

Posted on Oct 22, 2007

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If you put the good channel from the deck into the right and then left phono imputs of your amp, the sound should come out from the left and right speakers. If it only comes out from the left, then the amp as a right hand channel fault. Now if other devices work on both channels, then it's the pre-amp for the phono socket that has a fault on it. You should be able to find this by following the wires from the phono socket. If you touch around that pre-amp you should get it to buzz on either channel (where it joins with the main pre-amp). Doing this with a screwdriver will pin-point where the faulty part is (working backwards). PS don't short anything by touching to bits of metal together with the screwdriver.
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If you've already replaced the RCA /Phono cables, then the only other item that would cause this kind of problem is your tonearm, and it will need to be replaced.

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Nov 30, 2008 | Turntables

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** sound

First and foremost, make sure you plug into directly to the PHONO input of your receiver. If your unit does not have a PHONO input, then you wont be able to hear much coming from the unit. The PHONO input is a pre-amplified input, and this turntable requires an amplified input in order to transmit it's signal correctly. Just using an AUX or LINE IN will not have enough power to increase the signal of the turntable. You have the option of purchasing a PHONO PRE-AMPLIFIER (range in price from US$15-30), or purchasing a new receiver with a PHONO INPUT!

If you have it connected to your phono input, and still no sound, your turntable may have either faulty RCA cables (red/white cables), or a bad tonearm - in either case will need to be replaced.

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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 - - go to the Support Section for a list of auth service centers in your area.


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If you have a phono input, then you might have an issue with the turntable's RCA cables, or your cartridge may be at fault.


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