Does anyone have the service manual for the Numark TTXUSB?

Question

Turntable

Repair for different sorts of record players, for recreation and music production.

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coldspark @coldspark

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crwdns2931729:0crwdne2931729:0: Mud 4, 2019

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Does anyone have the service manual for the Numark TTXUSB?

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?

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Hello coldspark, i am Eduardo From Brasil and i can help you .

if some 2sb/2sd transistor was problem you need to change the smd mosfet drivers too. its 7002 transistor. BTW, if possivel, can you tell me the value of r55 ?

crwdns2934271:0Kul 27, 2023crwdnd2934271:0 Eduardo Lavratti crwdne2934271:0

https://www.audioservicemanuals.com/n/nu...

crwdns2934271:0Kho 1, 2023crwdnd2934271:0 William Perreault crwdne2934271:0

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jayeff @jayeff

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crwdns2931729:0crwdne2931729:0: Mud 4, 2019

crwdns2933897:0crwdne2933897:0

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.

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Thank you! It looks very similar, but the parts names don't comply witht he ones on my device. Must be an earlier version, I guess. It's a start though!

crwdns2934271:0Mud 4, 2019crwdnd2934271:0 coldspark crwdne2934271:0

crwdns2934285:0crwdne2934285:0

Hello coldspark, i am Eduardo From Brasil and i can help you .

if some 2sb/2sd transistor was problem you need to change the smd mosfet drivers too. its 7002 transistor. BTW, if possivel, can you tell me the value of r55 ? — Eduardo Lavratti
Thank you! It looks very similar, but the parts names don't comply witht he ones on my device. Must be an earlier version, I guess. It's a start though! — coldspark