I wanted to lower the value for the GI fuse, which is 20A original.
If you look closely at the wires, you will see there are four wires comming together at the fuse.
Two of them goto the backbox.
These can be split into 2 strings of 19 and 20 lamps.
That way a 5A fuse for each will suffice.
The other two are for the playfield string and the cabinet (coin door).
The playfield can't be split and will have to be fused with 10A.
The coin door only has 2 or 3 lamps, so an 1A or 2A fuse will do.