tzh21y:
Congratulation on getting the lid off the Marantz Sa11-2. That unit has one main power fuse and also 6 rail fuses. The rail fuses are 1.6 amp and 1 amp rated. The main fuse is the 3.15 amp.
Leave the unit on 24/7 for best results. Give the fuse a week to settle in.
David Pritchard