Kenwood FM Transceiver TK-481 Service Manual

Also see for FM Transceiver TK-481: User manual Instruction manual Specifications Instruction manual Service manual

37ADJUSTMENTMeasurementTest-equipment Unit TerminalAdjustmentUnit Parts Method Specifications/RemarksConditionItemTK-480/4819. DQT BAL 1) SYS – GRP : 4 – ✽ Power meter Panel ANT Panel Encoder Make the demodu-adjustment Select BAL ✽ ✽ ✽ Deviation knob lation waves intoin tuning mode. meter square waves.Deviation meter filter setting OscilloscopeLPF : 3kHzHPF : OFF AGPTT : ON AF VTVM10. MAX DEV 1) SYS – GRP : 4 – ✽ Universal TK-480 : 3.8kHz ±50Hzadjustment Select MAX ✽ ✽ ✽ TK-481 : 1.75kHzin tuning mode. (According to theAG : 1kHz/150mV larger +, –.)Deviation meter filter settingLPF : 15kHzHPF : OFFAdjustment itemL MAX ✽ ✽ ✽ →C MAX ✽ ✽ ✽→H MAX ✽ ✽ ✽PTT : ON11. T/A MAX 1) SYS – GRP : 4 – ✽DEV Select TMAX ✽ ✽ ✽adjustment in tuning mode.AG : 1kHz/150mVDeviation meter filter settingLPF : 15kHzHPF : OFFAdjustment itemL TMAX ✽ ✽ ✽ →C TMAX ✽ ✽ ✽→H TMAX ✽ ✽ ✽PTT : ON12. NPSPAC 1) SYS – GRP : 10 – ✽ TK-480 : 2.9kHz ±50HzMAX DEV Select NMAX ✽ ✽ ✽ (According to theadjustment in tuning mode. larger +, –.)AG : 1kHz/150mVDeviation meter filter settingLPF : 15kHzHPF : OFFAdjustment itemL NMAX ✽ ✽ ✽ →C NMAX ✽ ✽ ✽→H NMAX ✽ ✽ ✽PTT : ON13. MIC 1) SYS – GRP : 4 – 1 Check TK-480 : 2.2~3.6kHzsensitivity AG : 1kHz/15mV (TK-480) TK-481 : 0.6~1.0kHzcheck AG : 1kHz/8mV (TK-481)Deviation meter filter settingLPF : 15kHzHPF : OFFPTT : ON14. T/A MIC 1) SYS – GRP : 4 – 1sensitivity TA mode : ONcheck (Press [A] key, then [C] key)AG : 1kHz/15mV (TK-480)AG : 1kHz/8mV (TK-481)Deviation meter filter settingLPF : 15kHzHPF : OFFPTT : ON