Chosen Solution
I want to repair the motor of this turntable. When being cold it stops turning and sometimes even turns backwards, which gets better after you turned it with your hand a bit. So this sounds like capacitors having got old. Then I could also replace the the 2SB1340 and 2SD1889 transistors. Someone already did some soldering on the motor and added a foil capacitor to stabilize the motors Vin I guess, although its power supply provides a stable voltage. Would like to know what is still original here. Does anyone have experience with this turntable?
Hi Not sure if this is the one you’re looking for as it doesn’t show the same transistors that you mentioned, but here’s a link to the NUMARK TTX VARIABLE TORQUE USB-DJ DIRECT DRIVE TURNTABLE circuit diagram, which may be of some help. To download the file, pass the “I am not a robot test” below the Document Preview box and then when the sentence below the Document preview box changes from This file is downloadable free of charge (5/day): …processing… to This file is downloadable free of charge (5/day): Download, click on Download, as this is the link. Be patient as it takes a little while to find the file.
