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Positive Cross Current Limit. 6611-6613C and 66309D

Question asked by Jester on Mar 30, 2016
I'm trying to locate this Positive Gross Current Limit circuit (Voltage clamp) on an "A1' board used that is used on the 66309D, 6611-6613C power supplies. No U# and I probed every diode I could find WRT D321 Anode and I can't find it. I'm pretty sure The ?? voltage clamp is pulling down the signal at its anode, however no luck finding it on the board.  

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