Disassembling ProtoArc EM01 NL

Push the pins inward, ONE side at a time, then lift the side from the bottom of the main body, to free it from socket. Then take care of the other side.

The pins

The socket

Remove the track ball (THE ball itself)

Remove 6 self-tap screws. The one pointed by an arrow needs a long thin philip head screw driver

Apply a little bit prying force bear the ball socket, to open the bottom.

Unlatch the FPC connector by:

Push the black plastic latch up. Using tweezers.

Pull out the top cover FPC.

Now separate top and bottom case.

Remove the ring from ball socket

Remove 1 self-tap screw

Lift the tiny PCB witth 2 buttons

Same type FPC connector. Handle it as before. But, there's a drop of glue, removing it might damage the connector and/or the cable. Skip this if not intent to replace the tracking sensor.

To remove battery, remove 2 screws. (optional)

Remove 4 screws for the PCB

Remove 2 screws for the sensor

Lift main PCB and the sensor module (ball socket) off the bottom case.

Noticed the 4-pin socket? There is a 4-pin pinheader under main PCB mating with it. should plug them back together while reassembling. Sorry for the shallow DOF, shot really close up and under poor lighting.

Remove 2 screws. Then remove the type-C module.

Remove the wheel from rotation encoder

Original switch is silent 2-pin square type. It's totally interchangable with common 3-pin mouse switches (Omron D2F type).

See? same hight. Also same pin pitch.