Sonograph SA-250


Hi,
I need to replace the fuses for 1 channel on my SA-250. I think you also have to open 2 screws on the top back that are attached to the heat fins. Does anyone know what type of screws these are? I have tried the hex 2.5 mm, but that does not work either.

Thanks for the help
sd2000
I want to buy a crown studio ref amp to power my diy speakers
Tidal sunray clone .
will this give a better sound then mark levinsion ml 23.
I know I can get an answer here.
Thanks.
If they are Hex (Allen) type screws, they come in both metric and SAE. Also, look at them very closely. Use a magnifying glass if you have to. On screws that small, its very easy to mistake hex for torx.