This is essentially what the inside should look like when you first remove the top cover.

Remove these 3 SMALL SILVER screws marked in GREEN. Once they are out, move the circuit board as much as possible to the side.

There are TINY WIRES connected EVERYWHERE. Be very CAUTIOUS of this, they may BREAK EASILY.

The Component marked in DARK BLUE is a rather LARGE capacitor. There are many others throughout this device as well.

Once the circuit board is out of the way, remove these 4 SMALL SILVER screws marked in RED and the respective metal braces under them from the 3W, 6Ω (Ohms) SONY speaker

When setting the speaker off to the side, be careful not to damage the fragile Diaphragm and Voice toll.