May use binocular microscope or magnifier to detect defects or verify completeness and size of microcircuitry images. May sort defective components and parts for salvage or scrap. May test continuity of printed circuit board, using standard testers or meters. Connects unit to test instrument, such as ohmmeter, voltmeter, ammeter, resistance bridge, or oscilloscope and turns switch. Reads instrument dial or scope that indicates resistance, capacitance, continuity, and wave pattern or defect, such as short or current leakage.
Compares instrument reading with standard and rejects defective units.
Records type and quantity of defect. May verify dimensions of parts, using standard gages. May examine assembly, component or part for defects, such as short leads, bent plate, or cracked seal. May tend equipment to subject unit to stress and strain prior to testing. May operate X-ray photograph and closed circuit television viewing equipment to observe internal image of unit for assembly defect prior to testing.