Impedance selector bypassed

[Mxzx]

Hello, I have a '74 SL 100w that the impedance selector was completely bypassed.
Any idea what was done based on the wiring in this pic?
I would guess it was hardwired to 16ohms?
The purple and yellow appear to be wired together, and I believe the black under them is just capped?

 

[neikeel]

The brown is the common
The thick green is the 16ohm tap secondary straight to the output jacks
The yellow is 8ohm and black 4 ohm
The purple wire is the NFB from the board and will be hard wired to either the yellow or black (can't tell from your pic and the other will be capped off with heat shrink. I don't think anything is hooked up to your selector apart from the black link wire that usually goes to the tip connector of the output jacks.

 

[Mxzx]

Yes, the purple and yellow look to be wired together, and the black capped.
So with the thick green, I am basically set to 16ohm all the time?
Thanks!