Alright Here we go.

UPDATE!
The only freakin fuse that doesn't pass any tests is the one next to the label "PS1". Unfortunately, it isn't even close to the size of any other fuse on the board.
It's about the size of a grain of pepper and has ED printed on it. Anyone know where to get a replacement? All the online parts places just have the huge bulky ones that say 30 on 'em.

I would first recommend emailing Rich at www.richspsxparts.com this guy has everything and at great prices with free shipping most of the time. If its not listed on his page I'm sure he still has it available.

But if that doesn’t work try this.

http://tomekswholesale.zoovy.com/product/PS21AMPFUSE

The 1amp fuse is a little larger then what the PS1 fuse is rated at, if I remember right its rated at .4 amps. Also like I said before just cuz the pic looks like the larger ones doesn’t mean that what it is. I have seen what the 1 amp fuses from Tomeks page look like and they look nothing like the pic he shows. They are just a little larger the original PS1 fuse.