This is a older topic that's been bugging me. I have one of these beast sitting in the box, I think there is a easy to remove the power switch Intact. So, a suitable replacement can be found.
I'm sure the components were inserted in the case. (LEDS and switch's)
The PCB board then laid over the top of the components electrical leads and soldered. So, one would assume unsoldering all of the components leads. Then lifting the circuit board away from the case. Is the only way to remove the switch.
But, there may be another way.
1) Notice, the standard rocker switch in the first picture. Pressure tabs on each side of
the switch that snap/lock into the case.
2) Now, look at the picture of the underside of the circuit board. Notice, there is plenty
of room between the PCB Board and the bottom side of the case. Bend a small
piece of metal at a right angle to use as a tool for the on/off switch removal.
Insert the tool between the PCB board and the rear side of the upper case. Release
the clip on one side of the switch. Then the other...
Just a thought?
