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Got one of these in with an output section ka-put. These are a class H setup. Not too familiar with these and the manual has a schematic, but its unreadable in PDF form. So, I have voltage rails (+/- 93v) at the supply diode packs, but not to the good output section with the bad one unhooked. Do they use a rail comutating setup or something more elaborate? Since class H is a continually variable rail thing, what kinda game they play'n here? Readable schemo anyone?