Assembles, welds, solders and x-rays medical devices and related parts using microscopes and applicable tools; Locates and corrects problems by examining x-rays and performing visual inspection of parts; Repairs and tests units using computerized test equipment. Assembler II, working under close supervision, may perform a combination of assembly, weld, x-ray, repair, and test operations on pacemakers, implantable cardioverter defibrillators (ICDs), leads, and related medical device assemblies.