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R71 = 7.5k, and there are more than a few other Resistors that I don't have measured on there. The R72 designator is really TH1. Fixed that now, and I'm sure it's probably not the only error on there you'd run across if you went digging. Thanks for pointing it out.
https://www.acidmods.com/RDC/DS4/JDM-055/JDM-055.dxf