PRO5 rev.2 HELP!blown diode, or: do you have schemes?

[Quinton Fulsom]

I'm repopulating a rev. 2 pro5 and can't read what this blown diode is between
the 2 large computer grade 6500uf 25v caps.
And even more fun, I don't have any schemes.
Can somebody please relay the value.

Also whilst were on it is it better to sub a 1n4001 with a 1n4004 or 1n4006? 
My understanding is they just take heavier surges?
Thanks,
Quint

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