Hi Blink,
I have a pdf manual, but I don't know how to post it here. I think the file is too large. If you send me a pm I can email it to you.
Generally if the board is bad you can test by applying full field current. To do this you temporarily short the F (field) wire to the right of the other field wire to Batt negative with winds of ~10 mph or more. Watch the amp gage if it shows output the board is bad and needs to be repaired or replaced.
Good luck, ~ks