104 Troubleshooting TB9400 Installation and Operation Manual© Tait Limited March 20177 TroubleshootingCheck that all front and rear connectors and cables are in place, and thatpower switches are on. If problems persist, contact your regional Taitoffice.Symptom Possible Cause ActionAlarm LED red and steady(not flashing)The base station is inOffline modeUse the web interface to put the base station inOnline modeAlarm LED flashing One or more faults arepresentUse the web interface to identify the faulty moduleAlarm LED flashing,display shows “Pleasewait...”, fans are runningslowlyFront panel has lostcommunication withreciter 1Check cable connections. Check front panelD-range connector. Use the web interface tocheck reciter 1.Power LED on front panelis on, but keypad does notworkKeypad is disabled Check that the keypad is enabled in the webinterface (Configure > Base Station >Miscellaneous)Power LED flashing, fansare running, but display isblankThe base station isdownloading firmwareUse the web interface to monitor the progress ofthe firmware downloadNo power or LEDs onfront panelSystem control bus notconnected to front panelCheck cable connectionsPins bent on 15-pinD-range plug on frontpanelReplace or repair D-range plugDesired feature is notoperatingFeature license missing Check that you have the necessary featurelicenses (refer to “Licenses” on page 20 and theHelp)Feature license presentbut feature is not enabledUse the web interface to enable the featureTx stuck on Tx and Rx frequencies arethe sameReconfigure Tx and Rx with different frequenciesThe base station appearsto make randomtransmissionsCWID feature enabled No action: CWID transmissions are madeaccording to configuration settingsPA has low power Channel is configured tolow powerUse the web interface to check the power settingsPA may have sufferedpartial damageReplace module and send faulty module forservicing
