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Direct drive turntable speed

I can't get the strobe light to stay steady when playing a record. I got the speed close once but then the speed slowed during play. Also only got sound on the left channel of a stereo 45. Please help as I'm trying to record all my old vinyl to my PC. The guts of the unit is pretty clean and I didn't see any loose connections of any sort.

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  • Dan Tipton Oct 21, 2007

    My turntable is a Radio Shack Realistic LAB430.

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Posted on Jan 02, 2017

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SOURCE: Technics SL-1350 Direct Drive Turntable

Hi
Check that the cuing lift isn't touching the arm as it gets to the end of the record.

John w

Posted on Dec 17, 2007

  • 2 Answers

SOURCE: turntable plays too fast

I have seen this problem before. Lift the turntable off. It might be held down with a clip around the center pole. Under it you will see a wheel that contacts the turn table and the center shaft of the motor. The motor shaft has 3 0r 4 elevations with different diameters. When you change the speed the wheel will move up and down to different diameter levels on the motor shaft. It must be free to move. It might need some oil at the moving parts as I suspect it is not moving properly.
Hope this helps.

Posted on May 08, 2008

  • 4234 Answers

SOURCE: Fisher Studio-Standard Belt-drive Semi-Automatic Turntable MT-32

Most likely the grease in the whole system has started to stiffen or the motor is failing. This can be fixed. Try oiling the motor first. If that fails, I'd look at the motor driver IC as the most likely failing part.
Dan

Posted on May 23, 2008

SOURCE: turntable not turning to play record

This could be many things like the following>

If its a direct drive turntable the motor could be "blown",
or motor electonic speed controller burnt out.
If its a belt drive turntable then the belt could be broken
or stretched and is slipping, or the belt can have dropped of a drive pullety.
Also there are speed control mechanisms to adjust the final speed of the
turntable to the recorded speed of the record like 331/3rpm, 45rpm 75rpm
These speed reducing mechanisims can slip and cause the turntable not to turn..
There are also other mechanical bits that slide and push against each other,
and these can get sticky and the friction increases so much that the power
from the motor drive causes the belts to slip, so you need to identify if a
friction problem exists as well..

If you are carefull you can look your self and find out which one of the above it is.

Be warned there are lethal voltages inside the turntable which can kill you....
so please dont have the power on when making any inspection or adjustments.

Cheers From YUBEUT..

Posted on Sep 27, 2008

mirdan
  • 13 Answers

SOURCE: going too slow

You might try cleaning the motor shaft and belt with isopropilic alcool to remove any trace of grease that might make tre belt slip.

Posted on Apr 23, 2009

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2 Answers

Why is turntable too slow?


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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Direct drive turntables have electronically controlled speed. If the records you are playing are warped (not flat) that will cause wow & flutter. If that's not the problem then you might try connecting the turntable to a different power outlet using a long extension cord. Failing that, the turntable needs repair.

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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.

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1 Answer

Turntable out of Tune


it will be the turntable speed not exact
quality turntables have bars all around the circumference and when the speed is correct under a fluro light those bars will appear as stationary or using a strobe light set at 50 or 60 cycles a sec
bars going anticlockwise are too fast and moving forward are too slow
quality tables have a small knob or screw to adjust motor speed

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Technics sl d303


I have the same problem as mentioned above, does anyone know how to fix this pls. The 33 and 45 lights have stopped illuminating, hence cannot get the record to start playing. There not burnt out as the 33 has flickered off once powered on. Start / Stop button does nothing. Strobe still works, it's in mint condition and has had little use but suspect the kids have been messing with it.

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1 Answer

RCA 45ey record player & the turntable turns slow. Takes about an hour to warm up to the right speed. Can anyone help me?


The drive may be slipping unless it is direct drive, in which case the motor is becoming weak.

Jul 21, 2017 | Audio Players & Recorders

1 Answer

What's the correct way to use the strobe light to set turntable speed?


The turntable may have a pattern on the edge of the turntable. If not you need a turntable strobe disk that you place on the turntable like a record. The pattern on the disk or on the edge of the turntable will be marked for 50 Hz or 60 Hz frequency.
The strobe marks on the disk or on the turntable are for 33 RPM and 45 RPM and for both 50 & 60 Hz mains frequency.
To adjust the turntable for the correct RPM, turn on the strobe light and the turntable set it to 33 RPM and shine the strobe light on these marks and adjust the speed setting until the 33 RPM marks appear steady and not moving. You may want to check it for 45 RPM as well.
Make sure you use the correct mains frequency marks ie. the 50 or 60 Hz that your electricity system uses.

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1 Answer

Going too slow


You might try cleaning the motor shaft and belt with isopropilic alcool to remove any trace of grease that might make tre belt slip.

Apr 23, 2009 | Audio Players & Recorders

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Motor


This is a drive issue. You will need to have it professionally serviced, as there are many issues which may affect the drive of this unit. FYI, there is no 'motor' in a direct drive turntable. It is driven by various circuits on a circuit board, and if any one of them goes bad, your drive will be affected. The issue could also be a faulty pitch control as well.

- DJ PRO LAB

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