Localizes, isolates and repairs or replaces faulty electronic modules and components by using schematics, logic diagrams, logic symbology, technical instructions, logic testing equipment, manual data input, and computer stored program procedures. The DLA drug testing panel tests for the following substances: marijuana, cocaine, opiates, heroin, phencyclidine, amphetamines, methamphetamines, fentanyl, norfentanyl, methylenedioxymethamphetamine (MDMA), methylenedioxyamphetamine (MDA), and opioids.