AT-LP120-USB Start/Stop Button Replacement

Written By: Anthony @ ATUS
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AT-LP120-USB Start/Stop Button Replacement

Difficulty

Moderate

Steps

12

Time Required

30 - 45 minutes

Introduction

This guide is used to provide step-by-step instructions for performing the replacement of the Start/Stop Button on the AT-LP120-USB. This procedure is used to resolve inconsistent or no functionality of the motor when the Start/Stop button is pressed.

No soldering is required to perform this repair.

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    • Disconnect your turntable from power and audio.

    • Move the turntable to a clear flat surface.

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    • In this step, we are removing the necessary accessories to mitigate the possibility of damage in the upcoming steps.

    • Engage the tone arm clamp

    • Remove 45 adaptor.

    • Remove slipmat.

    • Remove platter by using the two circular holes and pulling vertically from the top of the turntable.

    • Remove the counterweight by unscrewing the rear clockwise.

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    • This step is an extra precaution in case the tone arm clamp becomes loose during handling.

    • Tie down the tone arm using a twist tie/zip tie.

    • The next step involves flipping the turntable onto the the dust cover. At this time it would be best to find a soft surface (ie. cloth, foam, etc.) to place it on to mitigate damage to the dust cover.

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    • Place on soft surface (ie. cloth, foam, etc) to mitigate risk of damaging the dust cover.

    • Carefully flip the turntable onto the dust cover.

    • Remove 8 screws.

    • Each screw is accompanied by one brass bushing. These bushings might come out still attached to the screws, or will stay inside the turntable.

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    • Spin the turntable so that the rear is facing you.

    • Lift off the bottom cover.

    • Depending on manufacturer date, you may need to tilt the bottom cover to pull it away from the ports/switches.

    • Remove the hinges if they do not come out of the dust cover when lifting.

    • As you pull the bottom cover off, the RCA cables will be removed through this hole.

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    • Spin the turntable back around such that the front is closest to you.

    • Locate and collect the 8 brass bushings if they did not come out with the screws.

    • Slide the bushings to the head of each screw and set aside for later.

    • The button that is being removed can be located here.

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    • Adjust the turntable on top of the dust cover such that the button is protruding from the PCB.

    • Use a pair of tweezers or needle-nose pliers to remove the silver clamp.

    • The clamp requires a bit of force to be pulled off from the post.

    • Remove the black felt washer from the post.

    • Do not dispose of any pieces that come off of the button as these will be used on the replacement button.

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    • The button is now loose and is able to be removed.

    • Adjust the turntable so the dust cover is no longer holding the button up.

    • Remove the button and spring if it did not fall from adjusting the turntable.

    • Remove the spring and black felt washer from the button shaft.

    • If the spring and/or black felt washer are not attached to the button upon removal they are likely stuck near where the button was removed from.

    • Do not dispose of any pieces that come off of the button as these will be used on the replacement button.

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    • Locate your replacement button and place it such that the black plastic post is closest to you.

    • Keeping the button in this orientation for the remainder of the repair will ensure the correct orientation upon completion.

    • Slide the black felt washer down to the base of the shaft.

    • Position the spring around the shaft in-between the small plastic posts.

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    • Insert the button back into the base of the turntable with the small highlighted post from Step 9 closest to you.

    • Adjust the turntable on top of the dust cover such that the button is protruding from the PCB.

    • Slide the black felt washer onto the shaft of the new button.

    • Press the clamp back into the grooved portion of the shaft.

    • Attaching the clamp will require some force. The technicians normally use the flat handle side of their tweezers to push the clamp into place.

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    • Spin the turntable back around such that the rear is facing you.

    • Place the hinges back into the dust cover.

    • Press this part of the hinge so the hinge is in a vertical position.

    • Locate the bottom cover, and route the RCA cables com from the turntable through this hole.

    • Place the bottom cover onto the turntable such that the dust cover hinges are inserted into their respective brackets, and all ports are visible.

    • Depending on manufacturer date, you may need to tilt the bottom cover and insert the ports/switches before re-attaching the hinges and dust cover.

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    • Insert the 8 screws with the brass bushings attached into the bottom cover.

    • Brass bushing placement on the screw is shown in Step 6

    • The turntable is now reassembled.

Conclusion

If the motor continues to have no reaction to pressing the start/stop button after reconnecting the turntable to power and reattaching the platter, the issue is likely caused by a faulty motor.

For further technical assistance, please contact service@atus.com or one of the technicians at (330)686-2600 ext.5004

~Monday-Friday 8:00am to 5:00pm~

Author

Anthony @ ATUS

Member since: 28/02/19

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