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Strobe rings on turntable, which do I want to stand still?

Sound - speed not right

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The bands on the platter. THere are two, one for 45 rpm the other for 33 rpm. It would be the lines that make the song sound right.

Posted on Apr 11, 2014

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1 Answer

The turntable slows down every two or three revolutions as shown by the strobe light and the sound of the LP


If this is a belt driven model it could be the sign that the belt is worn, causing it to slip.

Apr 14, 2016 | Audio Players & Recorders

1 Answer

My Optimus LAB 1100 is playing 45s ok but the 33s sound like the chipmunks


the turntable speed is incorrect
adjust with the speed control setting
many quality turn tables have bar codes around the outside edge and when viewed under a light those bars appear to be stationary when the correct table speed is set
It is a strobe affect in time with the frequency of the light

Dec 06, 2015 | Audio Players & Recorders

1 Answer

Just bought an Anders all in one player. The 33 1/3 speed is slightly slower. Cannot seem to get it to run correctly. any ideas?


If it is a fairly cheap unit there may not be an area where you can adjust the speed of the turn table
on better machines there is a variable rheostat where by you can adjust turntable speed
quality machines will have the edge if the turntable marked with what looks like bars
This is not decoration but when viewed under a light bulb will appear as stationary bars when running at the correct speed or as a blur when at the incorrect speed
It works like this
the bars are in effect a strobe that is affected by the light frequency or power hz so that when the strobe affect is exact the bars appear stationary
( like disco strobe )
so if your player has these bars on the edge , then check the actual speed with a bulb light Remember stopped bars is exact speed
If the turntable doesn't have these bars then most good home entertainment shops will have a paper plate that can be put on the turn table and the effect will be the same
other than that talk with a good radio repairer shop and have the variable control installed in the power circuit for the turntable motor .

Jul 23, 2015 | Audio Players & Recorders

1 Answer

Adjust pitch


Register (free) at Vinyl Engine and download the service manual. The adjustment you need to do seems fairly simple. You will need a turntable strobe disk to get the the speed right, unless you have perfect pitch.

http://www.vinylengine.com/library/denon/dp-29f.shtml

Jun 19, 2014 | Denon DP-29F Turntable

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.

Feb 25, 2011 | Audio Players & Recorders

1 Answer

The lp speed and 45 speed works but the rpms is just too fast or just too slow, which changes the pitch just enough tobe out of tune. with out a strobe adjustment can the rpm speed be corrected and how


get your unit serviced by a reputable service centre or risk killing it with the strobe controller,your choice

They both work differently and Im sure they are different voltages too

the strobe will introduce a clicking noise to your beautiful sound,not very good at all

If you enjoy you music like I do then do it properly,
ask fo a quotes first or search for a replacement.

Hope this helps,please rate me thanks

Apr 27, 2010 | Aiwa PX-E860 Turntable

2 Answers

1960s stereogram.bsr turntable turning to do fast.


If I can understand you right, the turntable is running fast. I don't think you need a new motor, generally the deck will run slow if the motor is knackered (or not at all). What you need to do is remove the platter, you will find a horseshoe bracket holding it on at the spindle (it may be covered up so you wil have to remove the cover part often a silver disc). The most likely cause will be the rubber idler tyre being worn damaged etc or out of place. There could be grease dirt or something else causing the problem.

Mar 25, 2010 | Audio Players & Recorders

1 Answer

Bush MTT1 turntable - does it contain a pre-amp?


Yes, according to someone else online who owns one:

"It is a simple device (I have one)

33 or 45 rpm
Pre-amp on/off switch underneath.
Two leads out.
Arm up/down lever and slight speed control.
When the light are stationary due to strobe effect then the speed is right."

Feb 08, 2010 | Audio Players & Recorders

1 Answer

YAMAHA P-220 VINYL RECORDTURNTABLE SPEED PROBLEMS:- HOW CAN I


if you open the bottom,there is variable potentiometers for the speed adjustment.you need a strobe reference disc if you want it exact.

Aug 15, 2009 | Audio Players & Recorders

10 Answers

Sony PS-LX250H turntable speed adjustment on underside, how??


Great detective work.

Let's collaborate on this for the benefit of others who may have the same problem.

L.IN should be the point at which the Lead-In groove on the LP would be, where the tonearm will drop to play an LP
RET should be the point at which the tonearm will lift up and RETurn to its rest at the end of the LP

That leaves us with SW. If your source is right this will affect the Speed. I can't imagine what the W stands for.

Since this turntable lacks the traditional strobe light and dots along the platter rim for determining if it's on target speed-wise we have to improvise and make a Strobe Disc.

It has radial marks on it and you place it on the turntable like a record. The lights in your room running at 60hz will make it appear to be stationary if the speed is correct; slowly creeping CW if too fast; CCW if too slow.

Here's a link to a PDF from which you can print your own disc... http://www.extremephono.com/ftp/60Hz.PDF

Here's what you do. Lay the trimmed Strobe Disc on top of a record while it's playing one of the outer tracks. This is because the stylus imparts some drag so we want to factor it in.

Then adjust the screw exactly one turn Clockwise and note how the speed has changed. Trial and error should get you to where you want to be.

Mar 27, 2009 | Sony PS-LX250H Turntable

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