I have an HD750/1 that had been going into protect mode for low impedance. After going over the mainboard, I found an issue with the C2 surface mount capacitor. The amp seems to be running fine after removing this cap, but I would still like to replace it before reinstalling the amp. I was hoping I might get lucky and maybe find someone working on this model amp that could help me with the specs for this capacitor. Its C2 near the bottom-middle of the attached picture.
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Does the schematic give a capacitance and voltage rating for the capacitor? Or by "OPEN" do you mean there is nothing there and it's just the designation on the board for C2?
Thanks for the info. I've had this amp for almost 10 years and I'm curious now why it's on the board and not on the schematic.