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KWTS Test Stand Automated Circuit Board Test System
V I Engineering, Inc., a National Instruments Premier Alliance Member and Select Integrator, was contracted by InvenSys Appliance Controls to develop a production test system for their KWTS control boards. The system is designed with two testing bays on the complete test fixture. They testing bays are switched one at a time to test DUTs, in order to allow loading or unloading of one DUT while the other one executes a production test. The entire test script is highly automated, so that operators are focused on manually removing and replacing DUTs within each testing bay. The tests contain bar code label verification, serial communication, EEPROM verification, a voltage test, LED test, UV voltage sense circuit verification, resonator accuracy verification, reset switches test, speaker volume test, UV Bulb voltage test, and interlock input test. All test results and pass/fail status for each test is recorded in the database. The test system
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