Sony M-430 Microcassette-Corder Speaker Replacement

Find the arrow on the battery cover on the back of the device.

While pressing down on the arrow, slide the cover towards the bottom of the recorder until it clicks.

Lift the cover and remove the batteries.

Remove the battery cover by first tilting it so it is at a right angle with the rest of the device.

Next, twist it to the side as shown in the second picture. The lid should simply snap off.

Use a #00 Phillips head screwdriver to remove the four (1.7x16 mm) screws from the back case.

Next, use the same screwdriver to unscrew the (1.7X5 mm) screw, which is located inside the battery compartment.

Use a spudger to push in the two tabs located on the bottom of the device.

With a firm grip on the larger half, remove the back cover by lifting first on the battery area.

The speaker is the large gold circular piece attached under where the batteries would normally be.

It is connected to the device with two black wires that run along one side of the motherboard, as shown on the top of the picture.

Depending on the replacement speaker you have, there are two places you can desolder the wire.

If your replacement speaker has a wire already attached to it, desolder the old wire from where it connects to the motherboard.

If the replacement speaker has no wire, desolder the old wire where it connects to the broken speaker.

Unscrew the 2 Phillips head screws (2x2.5 mm) around the edge of the speaker with a #00 Phillips screwdriver.

Use a pair of tweezers to remove the black tape on the speaker. Put the tape on the back of the new speaker.

Now that the speaker is detached from the device, simply tilt the device over and let the speaker fall out.