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Figure 25-Switch and LED side of Controller Board 
Important: Install all LEDs with the same orientation, anode left, cathode right! 
 
You’ll note an unusual order to the buttons below. If you follow that order, then you 
install the outside corner buttons first. That makes it easy to correctly install the rest of 
the buttons. 
 
Here’s a good way to install the push buttons. Set SW1, SW11, SW2, and SW7 in the 
marked silk screen areas. Place a piece of cardboard over the switches to make a 
cardboard-switch-PCB sandwich. Flip the sandwich smoothly and set it on your work 
surface. The switches will still be retained, and should be flat against the PCB before you 
solder them in place. 
 
Designation 
 
Description (note that all the push 
button switches are the same, being 
Done 
 
Normally open push button switch
Normally open push button switch
Normally open push button switch
ormally open push button switch