Sony PS-LX300USB Motor Replacement

はじめに

The motor is a big part of having the turntable turn, because it spins the drive belt. Replacing it requires some specialty work such as soldering, because it has some electrical components that need to be connected to a power source. Other than that, everything is pretty simple in replacing the motor.

必要な工具と部品

手順1 Dust Cover

Sony PS-LX300USB Motor Replacement, Dust Cover: 手順 1、 1の画像 1

Turn the turntable around so that the back side is visible.

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手順2

Begin by releasing the left latch. Apply downward pressure to the square, black button using a flathead screw driver.
Once the latch is released, lift upward.
Use your left hand to hold the left side of the dust cover above the latch. This ensures the latch does not reconnect.

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手順3

Use a flat head screw driver to apply pressure to the black square button on the right side.

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手順4

Once both the right and left buttons are released, pull the dust cover upwards.
The dust cover is now disconnected and ready for replacement.

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手順5 Drive Belt

Sony PS-LX300USB Motor Replacement, Drive Belt: 手順 5、 2の画像 1

Sony PS-LX300USB Motor Replacement, Drive Belt: 手順 5、 2の画像 2

Lift the rubber mat, and put it to the side. It should be easy to remove, because it simply rests on a metal platter without anything securing it down.

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手順6

Turn the platter so that the motor pulley can be seen through one of the two outer holes in the platter.
If the drive belt is hooked around the motor pulley, unhook it.
When reassembling to device, don't forget to hook the new drive belt to the motor pulley.

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手順7

Grasping the platter by its two inner holes, lift it upwards.
Removing the platter may take a small amount of force. If the pulley is unhooked and the tone arm is safely to the side, don’t fear using a small amount of force in lifting the platter.
If you haven’t yet unhooked the drive belt, the motor pulley and the belt could sustain damage.

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手順8

Peel the drive belt from the inner ridge of the metal platter and put it to the side.
Sometimes, the drive belt can fall off the platter during deconstruction. If this is the case, simply take it out of the device wherever it is.

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手順9 Motor

Sony PS-LX300USB Motor Replacement, Motor: 手順 9、 2の画像 1

Sony PS-LX300USB Motor Replacement, Motor: 手順 9、 2の画像 2

Use a PH2 screwdriver to remove the 8 screws from the bottom cover.
Now lift the bottom cover to remove it.

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手順10

The motor is in the right upper corner area of the turntable, shown in the red square.

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手順11

Using a solder iron, carefully desolder the wires that are connected to the old motor to be able to remove it. Making sure to pay close attention where each wire is connected.
From left to right: Black is all the way to the left. Red is next. White is third. Yellow is all the way to the right.
When reassembling, do not forget to solder in the wires in their previous places.

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手順12

Remove the old motor by turning it counterclockwise, freeing it from its position.
When reassembling, place the new motor in by aligning the two screws and turning the motor clockwise to secure it.

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