4-2 Magellan® 8100/8100Ω and 8200/8200Ω ScannerDiagnostic TestsSee Section 2, Diagnostic Modes, for details about running diagnostic testsfor the scanner and/or scale. If a problem is discovered during diagnostics,the scanner will provide feedback about the source of the problem. Theremainder of this section describes these failure indications and includestroubleshooting flowcharts to help isolate the problem.Diagnostic ProceduresYour Point-Of-Sale (POS) system may contain many components thatoperate as a system. Since almost all scanner or scale problems are causedby either the scanner, scale, POS terminal or communication linksbetween them, these troubleshooting flowcharts focus on these compo-nents. Additionally, the optional Remote Scale Display, AC/DC PowerSupply and their cables are potential problems addressed in this section.The flowcharts provided in this section walk you through a diagnosticprocess that will isolate the failed component and instruct as to the correc-tive action required. Since internal scanner and scale components cannotbe replaced by an operator or installer, most functional errors will requirethe assistance of a trained technical support person. However, if the prob-lem is caused by faulty cable, power supply or remote display, you can fixthe problem by replacing the defective component and complete theinstallation.