Repair GuidesSamsung Medison Ultrasound Board Symptoms: A Decision Path for RS80A, RS85, WS80A, HM70A, HS60, SonoAce X6/X8 and V8 RepairsA structured diagnostic decision framework for biomedical engineers, ISOs, and healthcare service managers mapping power/boot failures, 2D image loss, Doppler dropouts, and OEM error codes to verified Samsung Medison board assemblies, FDA 510(k) clearances, and qualified repair paths.