I sent an e-mail to USA Tube Audio for the specifications of CD5S fuses but received an unhelpful response. After I inspected all 12 visible fuses on the board and one fuse in the IEC inlet, I recorded the fuse specifications as follows
Power: T3.5AL/250V F301 to F304: T500ML/250V F351 to F353: T1AL/250V F401, F403 and F404: T3.5AL/250V F402: T500ML/250V
They are all in 5x20mm.
Please help me to confirm these numbers if you have prior experiences in replacing these fuses.
I've heard nothing but bad things about USA Tube Audio. A much better option would be to call The Cable Company for the fuses. They're an Ayon dealer, and I think they're the importer, as well. They'll definitely be able to help you.