Kenwood TS-990S Service Manual

Also see for SP-990: Instruction manual

Contents

TS-990S169ADJUSTMENTItem ConditionMeasurement AdjustmentSpecifications/RemarksTest-equipment Unit Terminal Unit Parts Method2. HF BPF*1• 7MHz1) Main display f.: 7.200000MHzMode: USBP.AMP: ONSpectrum analyzer settingStart Frequency: 1MHzStop Frequency: 15MHzTG level: 0dBmTrackinggeneratorSpectrumanalyzerRX(A/2)CN1CN93RX(B/2)TC506 Adjust the trimmer toget the highest peakpoints at 7.3MHz asshown.7.30MHz6.00MHz• 14M 2) Main display f.:14.200000MHzMode: USBP.AMP: ONSpectrum analyzer settingStart Frequency: 2MHzStop Frequency: 24MHzTG level: 0dBmTC507 Adjust the trimmer toobtain the frequencyresponse as shown. 10.50MHz 14.50MHz• 21M 3) Main display f.:21.200000MHzMode: USBP.AMP: ONSpectrum analyzer settingStart Frequency: 10MHzStop Frequency: 30MHzTG level: 0dBmTC508 Adjust the trimmer toobtain the frequencyresponse as shown. 18.50MHz 21.50MHz• 50M 4) Main display f.:50.200000MHzMode: USBP.AMP: ONSpectrum analyzer settingCenter f.: 55MHzFrequency span: 50MHzTG level: -20dBmTC509TC510TC511Adjust each trim-mer to obtain thefrequency responseas shown.50.00MHz 54.00MHz• 30~522k 5) Main display f.: 137kHzMode: USBP.AMP: ONSpectrum analyzer settingStart frequency: 0MHzStop frequency: 2MHzTG level: 0dBmCheck that the fre-quency response isas shown. 30kHz 522kHz• 522k~1.705M6) Main display f.: 550kHzMode: USBP.AMP: ONSpectrum analyzer settingStart frequency: 0MHzStop frequency: 4MHzTG level: 0dBm522kHz 1.705MHz