Kenwood TK-880 Service Manual

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ADJUSTMENTMeasurementTest-equipment Unit TerminalAdjustmentUnit Parts Method Specifications/RemarksConditionItem52TK-8807. Maximum 1) Set test mode Power meter Rear ANT 4.1kHz (Wide 5k) +0Hz, –50Hzdeviation Connect AG to the MIC Deviation panel 3.3kHz (Wide 4k) (Wide 5k/Wide 4k/Narrow)terminal. meter 2.05kHz (Narrow)Select “MAX” in tuning mode. Oscilloscope (According to the“nL MAX” larger +, –)AG : 1kHz/40mV AF VTVM Front MICDeviation meter filter AG panelLPF : 15kHzHPF : OFFDe-emphasis : OFFPTT : ON2) “nC MAX”PTT : ON3) “nH MAX”PTT : ON4) “s MAX”PTT : ON5) “w MAX”PTT : ON8. MIC 1) Set test mode Check ± 3kHz± 0.2kHz (Wide 5k)seisitivity CH : CH1 - Sig1 ± 2.4kHz± 0.1kHz (Wide 4k)check AG : 1kHz/4mV ± 1.5kHz± 0.05kHz (Narrow)PTT : ON9. QT deviation 1) Set test mode 0.75kHz (Wide 5k) ± 50HzSelect “QT” in tuning mode. 0.60kHz (Wide 4k) (Wide 5k/Wide 4k/Narrow)“nL QT” 0.35kHz (Narrow)Deviation meter filterLPF : 3kHzHPF : OFFPTT : ON2) “nC QT”PTT : ON3) “nH QT”PTT : ON4) “s QT”PTT : ON5) “w QT”PTT : ON10. DQT 1) Set test mode 0.75kHz (Wide 5k) ± 50Hzdeviation Select “DQT” in tuning mode. 0.60kHz (Wide 4k) (Wide 5k/Wide 4k/Narrow)“nL DQT” 0.35kHz (Narrow)Deviation meter filterLPF : 3kHzHPF : OFFPTT : ON2) “nC DQT”PTT : ON3) “nH DQT”PTT : ON4) “s DQT”PTT : ON5) “w DQT”PTT : ON