Where is the fuse board on 1991 500 sl mercedez?

The fuse box on a SL500 is underneath the hood, next to the power brake booster and master cylinder. It's that big square black plastic box...just open it...it's all there. There are also some additional fuses in the trunk, underneath the trunk lid's right hinge...it's that little black square under the hinge.

As to manually lowering the top on an SL....this question was answered a few weeks ago...search for that posting.