Question about Technics SL-1200 Turntable
This is not really a problem but more of a question. How can I modify the 1200 so i can control it's rpm completely. ie so i can run it at any speed between 0rpm and say 100rpm.
I need this for a project I am involved in, any advice would be very much appreciated.
Not sure I understand what you need done. The 1200 has a pitch control, which allows you to control it's speed. Do you want to disable the 33/45rpm function, and assign that to the pitch control, so instead of controlling pitch, you control the RPM? This will put quite a strain on the drive circuits of this unit, but it can be done. Although, not an easy modification, as you will have to modify multiple resistors and IC's on the main board. This should only be professionally done.
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Posted on Jan 20, 2009
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Engine stalling and rough run
issue at low speeds
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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