Hi 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 Problem" 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.
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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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.
Rob is essentially correct and I have gotten belts from Consolidated.
If you do not know the size of belts, you can simply order a kit from Marrs Communications and get premium grade Japanese belts. There is more to repairing these than just replacing the belts, there are new idler tires that should be installed and oiling of the bearings and even the reel table rebuild as these get dried out felt in them that develop too much take-up torque. Of course you would need a MTT160 test tape to find this and many local shops do not have them. I do because I worked for Teac before they closed down in Chicago. I was a Lead Technician there in the 80's. I am still working on these even today and have some 122 units in shop now. You are better served to have a Technician do the belts and oiling and all the other stuff that needs to be done such as setting speed and evaluation of the motor by wow and flutter measurement.
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.
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. The real answer to your question is not how you put the belts in but that you need to have it worked on my a Technician who knows what they are doing. Most deck owners are not set up with experience or equipment to get the correct job done.
Yes belts do stretch over time, often you will get wow and flutter too with it. Replacing the belt could solve it. If it's old anyway it could do with replacing. Please make a note of how it fits before removing it. Belts are measured in MM (diameter), but with TT belts you need to measure the width.