Question about Yorx DM100 Shelf System

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Measuring Wow and Flutter

Is it possible that a belt may need to "warm up" before a reliable w&f reading can be obtained? Should there be any difference between a warm or cold belt?

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Thank you for your email today. However, there appears to be some confusion on your side. I did NIOT enquire about finidng"solution for the Yorx DM100 Shelf System ProblemMeasuring Wow and Flutter - pixel.gif" BUT INSTEAD asked "Is it possible that a belt may need to "warm up" before a reliable w&f reading can be obtained? Should there be any difference between a warm or cold belt?" Could this question be addressed, please? Thanks.

Posted on Jul 14, 2008


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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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Rob is essentially correct and I have gotten belts from Consolidated.
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The unit either needs a new belt, Capstan bearing oiling as in taking the flywheel out and if this does not fix it a new capstan motor. The motor is adjustable with a small screw driver provided you have the appropriate wow and flutter meter and test tape to do the job.

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The only fault that can be is that the offending machine needs to be serviced and belts and the capstan roller replaced A drop of oil on all bushed cure a lot of these problems

May 18, 2013 | Audio Players & Recorders

1 Answer

Need to know how to replace belts on a Sanyo RD R60 Stereo Cassette deck circa 1987

Well these machines are not always easy to put parts into and there are some things to do that are not written in the manuals even if you get them. Often times the transport has to come out of the unit and then brackets and motor plates have to be removed to access the belts. This is just the reality of the job and why it can take so much time to do it. Just replacing belts in a machine does not guarantee that the unit will work well just from those belts. New belt will allow the torque to be transferred but the speed of the motor still needs to be set and wow and flutter measurements to determine if the deck is usable. Some belts of the wrong type will result in high wow and flutter. It depends on oiling and belt tension and if the reel torques are correct.
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I see your message isn't new anymore but Crosley does have a website with warranty and support info:
Crosley Radio

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