These are the instructions for the newer TR-2, if your PCB looks different than this the instructions are on the previous page. If your PCB looks like this you will have the 47k resistor left over.

The LED in the kit has 3 leads. The shortest lead is the Green Light, the center lead is the common positive, the longer lead is the Blue Light.

Insert the LED into the old LED holder with the short lead going to the green wire and the common (center) lead to the red wire, use the short piece of heat shrink to insulate the lead for the Blue Light, connect to the white lead and solder for the version of the TR-2 you have.

Note: I like to replace J3 with a little bit longer wire so it’s easier to connect the lead for the Blue LED.