6-2 Troubleshooting 501510 Rev. S6.1.4 When the power is turned on: the Handler moves normally and theLCD is illuminated, but it does not show text.1. The LCD display cable is not properly connected or the cable is damaged.2. The LCD display has failed.3. The Control Panel microprocessor has failed.6.1.5 The Barcode Reader does not read barcode labels reliably.1. The barcode labels are not of a high enough quality for reliable reading.2. The barcode labels are dirty or damaged.3. The barcode labels are printed in a code that the library configuration does notunderstand.4. The lens on the face of the barcode reader is not clean.5. The configuration is set to the wrong type of barcode reader.6. The barcode reader has failed.6.1.6 After Installing a Tape Drive, it Fails to Appear in the Menu System.1. The drive carrier has failed to seat properly. Using the lever, remove the drivepart way and reinsert it.2. The Tape Drive Assembly or Drive Bay PCBA has failed. Try swapping the posi-tions of the Tape Drive Assemblies.6.2 POST (Power On Self Test) Fault MessagesThese fault messages occur during POST (Power On Self Test), and after a reset andduring recovery from a previous fault.NOTEImportant: Some problems will result in an Alert Message on the LCD display, followedby a number. Our technical support department will need this number to diagnosethe problem if you contact them. So always, record this number, along with the fullcontext of the message.Additionally, please provide technical support with the Model Number, Serial Numberand Firmware Revision level of the subject library when contacting them.