Question about Technics SL-1210M3D Turntable

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Slow turntable How do I speed it up?

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  • Christopher Stewart
    Christopher Stewart Dec 28, 2013

    Technics SL-L20. Very slight but still noticeable slowing. I have replaced the belt with a new correct specification belt and there is no difference to the speed.The rest of the system works perfectly. I have the ability to have a go at making an adjustment if I knew how and would very much appreciate any thoughts you guys may have. Rgds.

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  • Technics Master
  • 5,020 Answers

I'm not certain if you know this already, but the light that shines on the left side causes a strobe effect on the platter. One of series of 4 patterns will seem not to move when the turntable is at the right speed. To adjust this you need a record playing and then move the slider on the right till the pattern doesn't move. Which one not moving will depend on the speed selected and also the mains supply either 50 or 60HZ.
You will get some variation in the movement, but you shouldn't notice the difference in the speed. If this is set up right and you still think it's slow, then you might have to look either right under the turntable or inside it. There might be on the underside one or two holes that might be covered up. They might even be labelled 45 and 33. If you find them you will need a small screwdriver and place it inside. This will turn a small speed pre-set. You will have to adjust this till you think it's right, with slight movements, testing with a record.
If they are not present on the underside you will have to take off the bottom and look inside for a pre-set. Normally it will look like a 3 leg device with a screwdriver slot in the middle of it. Sometimes marked on the board "VR" with a number. Alternatively it will be on the other end of the motor. If you have trouble locating it follow the motor leads to the main board.
Some turntables have two speed pre-sets others only one.

Posted on Dec 31, 2013

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Posted on Jan 02, 2017

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If it is slow on all speeds then it might be a build up of grease or dirt in the mechanism, or perhaps it needs oil in the motor?

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It depends which type of turntable it is. If a belt one then change the belt, make certain you make a note of how the belt fits before removing it.

Direct drive turntables are more difficult. As it could be any number of faulty parts that cause it.
A build up of grease or dirt in any type of deck can slow the speed down.

A faulty motor on both types of deck will also cause it.

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If it's belt drive, the rubber drive belt may be slipping (look inside and see if you can detect slippage).....or if it's gear driven or direct drive.....I'd just let it run for an hour or so and see if it speeds up.

If not, and it's valuable, take it to a repair shop. If it's cheap....scrap it!

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How do I adjust the speed of a Sony LX250H turntable? The answer is not in my manual.


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TURNTABLE SPEED TOO SLOW. IS THERE ANY WAY TO ADJUST IT.


The liely cause of the slow speed problem is the belt. Your turntable is belt driven, like components in your car's engine compartment. As the belt ages, it can begin to slip. Replacement of the belt will probably restore the speed once again. The PX-E860 turntable has been discontinued. There are parts, such as the belt, that are still available. How much longer these parts will be available for remains unknown. If you like the the turntable, you should consider purchasing several belts as the next time you need one, they may not be available or may cost much more.

One source for replacement belts (there may be many others, ie: eBay):

http://www.elexatelier.com/aiwa.htm

You might also need a manual to direct you as to how to go about changing the belt. The manual is a free (after registering) download below:

http://www.retrevo.com/support/Aiwa-PX-E860-Turntables-manual/id/1077bh126/t/2/

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