Kenwood TK-480 Service Manual

Also see for TK-480: User manual Instruction manual Specifications Instruction manual Service manual

Contents

5TK-480OPERATING FEATURES■ System up/downWhen the key is pressed each time, the system numberto be selected is incremented/decremented and repeats ifheld for one second or longer.■ Telephone disconnectPressing this key ends an RIC connection (disconnectsthe telephone line).■ NoneSounds error operation beep, and no action will occur.Use this function when the transceiver is required to bemore simple operated.2-4. DisplayAlphanumeric displayThe twelve-character dot matrix alphanumeric displayshows the system and group numbers. You can programsystem and group names with up to ten characters inplace of these numbers. The left display is used as a de-lete indicator ( ) and the right is used for the selectivecall ( ) or scrambler ( _ ) function. The delete/add indica-tor shows the systems locked out of the scanning se-quence. Selective call and scrambler are optional func-tions that can be programmed. Also displays receivedmessages when using DMS (Digital Message System).3. Option Signalling3-1. DTMFBuilt-in DTMF decoder is available for option signalling.It is possible to use individual call, group call, D.B.D.(Dead Beat Disable). D.B.D. is used with DTMF only.If the option signalling matches, a predetermined actionwill occur.If option signalling matches on a group which is set upwith option signalling, the option signalling indicator ( ) willflash and option signalling will be released. The transpondor alert tone will sound.If the selective call alert LED is set up, the orange LEDwill flash.While option signalling matches (or if option signalling isdeactivated when you are transmitting), you can mute orunmute ID/QT/DQT/Carrier.■ AND/ORYou can select AND or OR for option signalling matchconditions.Alert/TranspondAND QT/DQT/ID+DTMF; Option matches = ActionOR QT/DQT/ID+DTMF; Option matches = ActionAF mute openAND QT/DQT/ID+DTMF; Option matches = ActionOR QT/DQT/ID; Signalling only matches = ActionWith OR set up, alert/transpond will not function withonly DTMF.With OR set up, AF mute will not release when onlyDTMF matches.With a conventional group not set up with QT or DQT,only the carrier is considered when signalling matches.■ Auto ResetIf option signalling matches a group set up with optionsignalling, option signalling is released. After matching op-tion signalling, option signalling will temporarily reset auto-matically.Sub displayDisplays the system and group numbers. Also displaysvarious functions which have been programmed.P (Priority) indicatorThe P indicator ( ) appears when a selected channel isprogrammed as priority, in conventional operation.MON (Monitor) indicatorThe MON indicator appears when the button pro-grammed as MONITOR is pressed.SVC (Service) indicatorThis icon is not used on this transceiver.SCN (Scan) indicatorThe SCN indicator appears when using Scan mode.LO indicatorAppears when low power is selected.Handset indicatorThe handset indicator ( ) appears when the selectedgroup is programmed as telephone IDs.MAIL indicatorFlashes when a status message (DMS) is received.Lights when a status message is stored in the stackmemory.P9