Symbol LS3408 Product Reference Guide - Miles Data Technologies

3 - 2 Symbol LS3408 Product Reference GuideTroubleshootingTable 3-1 TroubleshootingProblem Possible Causes Possible SolutionsScanner emits short low/shortmedium/short high beepsequence.Nothing happens when scantrigger is pressed.Scanner emits short low/shortmedium/short high beepsequence more than once.Laser comes on, but scannerdoes not decode the bar code.Scanner emits 4 short high beepswhile attempting to scan.Scanner is powering up.No power to the scanner.Incorrect host interface cable isused.Interface/power cables areloose.Scanner is disabled.If using RS-232 Nixdorf B mode,CTS is not asserted.The USB bus may put thescanner in a state where powerto the scanner is cycled on andoff more than once.Scanner is not programmed forthe correct bar code type.Bar code symbol is unreadable.Bar code is out of range fromthe scanner.Scanner has not completedUSB initialization.Normal when scanner is plugged in.Check the system power. Ensure the powersupply is connected if the configurationrequires a power supply.Power supply is not plugged in.Ensure that correct host interface cable isused.Ensure all cable connections are secure.For Simple Serial Interface (SSI), Synapse,or IBM 468x mode, enable the scanner viathe host interface. Otherwise, see thetechnical person in charge of scanning.Assert CTS line.Normal during host reset.Ensure the scanner is programmed to readthe type of bar code being scanned.Check the symbol to ensure it is notdefaced. Try scanning test bar codes of thesame bar code type. See Appendix C,Sample Bar Codes for test bar codes.Move scanner closer to or further from barcode.Wait several seconds and scan again.