4-2 MagellanTM 8300/8400Operational TestsThese are the tests that run continually during Normal Operation andSleep Mode. Firmware checks all subsystems, accessory connections andthe POS interface to verify everything is operating normally. If a problemis detected at any time, a long, low tone is sounded, an error code is shownon the 7-segment display, and operation may be halted. If you press theVolume/Tone Push Button at that time, a series of tones will be soundedthat matches the error code displayed.Diagnostic TestsSee Chapter 2, Diagnostic Modes, for details about running diagnostictests for the scanner and/or scale. If a problem is discovered during diag-nostics, the scanner will provide feedback about the source of the prob-lem. The remainder of this chapter describes these failure indications andincludes troubleshooting 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 chapter.The flowcharts provided in this chapter 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.
