Climate control fuse location 1980 300sd? & need a picture of the amplifier board.

[Mr.Kenny]

#1.
Is there a fuse that is supposed to protect the climate control amplifier or the servo? A 1 amp?
Where o where would it be?
#2.
And would anyone post, or send me a clear picture of the a/c amplifier component board? As one of the diodes is smoked beyond recognition!
I think 1977 thru 1980 w116 or w123 is the same.

Thanks