Sorry I did not take pictures, but I recently disassembled a WS-50 which appears to have a similar design. First, make sure you have cleaned the battery terminals of any visible corrosion, since this could save you from taking it apart. The glass top is adhered to the plastic housing on its four corners using circular adhesive pads. The center metallic button is also adhered to the top of the glass with a circular adhesive pad. On the WS-50, The center aluminum button's sensor is attached to the PCB via a single wire. Additionally, there are four clip style sensors clipped to the glass beneath the button. These sensors are also attached to the PCB with one wire each. You will need to first take apart the center button/sensor array before you can separate the glass sheet from the lower plastic housing. If you only want to take a peak inside, and don't plan on removing/repairing connections, then you could just separate the four corners. You are limited to about 1-2 inches of separation of the glass from the...