Different checks answer different questionsBare-board electrical test, insulation-to-base verification and complete-system thermal validation have different scopes.Different checks answer different questionsUse the released construction and agreed requirementsCircuit connectivityDoes the tested net structure match the released data?Insulation to baseDoes the defined circuit-to-metal test meet its requirement?Mechanical fitDo outline, holes and relevant flatness meet the drawing?Thermal assemblyDoes the assembled heat path meet the system target?Evidence recordKeep conditions, coverage and results with the revision.³Ô¹Ïtv · Engineering explanation · Conceptual, not to scale