Question about Technics SL-1200MK2 Turntable
On start,platter moves in jerks.works ok when assisted along(stabilises)fault resumes whenu start up again
Those instructions provided by Jim do not apply to this specific turntable. This person has a direct drive turntable, and have none of the features you mentioned.
You either have a faulty IC on the main board, or your unit might be set to the incorrect voltage setting. If you look under your turntable platter, you will see a VOLTAGE switch. Make sure it is correctly set for your country (115V or 220V). If it is set correctly, then you probably have a bad IC, resistor, or capacitor causing this problem.
Unfortunately, this is not an easy fix, as it will require the use of an oscilloscope and frequency counter to determine the problem.
DJ PRO LAB.
Posted on Feb 24, 2008
A couple things to look at. If it is a belt driven turntable, look to see if the belt is slipping. There should be a motor with a pully and a flywheel at the other end that spins the platter. There will be a flat belt connecting the motor pulley to the flywheel. Its possible that the belt is slipping at start-up, since that is the condition when the greatest stress will be on the belt. When you help it along with your hand, your helping it to get it moving, overcoming the slipping and the movement of the flywheel takes over and keeps it spinning after that.
It's also not a bad idea to remove the C-clip that is around the top of the spindle. It's what keeps the platter fastened down. Pull up up the platter and clean the spindle shaft. Dust & dirt can gather in there causing friction. You can pry off the c-clip with a flat-blade screwdriver. Becareful though, the clip can fly off and you might lose it.
Let me know how it went and I can help you locate a belt if that turns out to be the problm.
Posted on Jan 31, 2008
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Posted on Jan 02, 2017
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