u/Datari_

I have had this old amp for quite some time. The time it took the relay to click just took longer and longer, until it just stopped happening.
The power turns on just fine.
Took it to a tech who said it might be a blown fuse or just a thorough cleaning needed.

When I opened it up I could find 2 fuses located at the small white stickers. I can see that there are two more holders for fuses. One of them is named FU1, while only FU3 and FU4 (by the stickers) had fuses in them.

Am I missing some fuses there?