Kenwood TS-990S Service Manual
Also see for SP-990: Instruction manual
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TS-990S174ADJUSTMENTItem ConditionMeasurement AdjustmentSpecifications/RemarksTest-equipment Unit Terminal Unit Parts MethodIF fi lter• 500Hz2) Main display f.:14.200000MHzMode: USBFIL/SEL(M):500HzSpectrum analyzer settingCenter f.: 8.248MHzFrequency span: 5kHzTG level: 0dBmTrackinggeneratorSpectrumanalyzerRX(A/2)CN115CN129Check that the fre-quency response isas shown.8.248MHz• 2.7kHz 3) Main display f.:14.200000MHzMode: USBSpectrum analyzer settingCenter f.: 8.248MHzFrequency span: 10kHzTG level: 0dBmRX(A/2)L96L99Adjust each coil toobtain the frequencyresponse as shown.8.248MHz1.35kHz<6dB1.35kHz<6dB• 6kHz 4) Main display f.:14.200000MHzMode: USBSpectrum analyzer settingCenter f.: 8.248MHzFrequency span: 10kHzTG level: 0dBmL95L98Adjust each coil toobtain the frequencyresponse as shown.8.248MHz3kHz<6dB3kHz<6dB• 15kHz 5) Main display f.:14.200000MHzMode: USBSpectrum analyzer settingCenter f.: 8.248MHzFrequency span: 50kHzTG level: 0dBmAfter the adjustment, discon-nect the cable from CN115.L94L97Adjust each coil toobtain the frequencyresponse as shown.8.248MHz7.5kHz<6dB7.5kHz<6dB7. NB MCF(15kHz)1) Menu No.: 5 (14.2MHz, USB)P.AMP: ONAGC: OFFFIL/SEL(M):15kHzNB1: ONSpectrum analyzer settingCenter f.: 8.248MHzFrequency span: 40kHzTG level: 0dBmConnect the tracking genera-tor output to CN86.Connect the spectrum ana-lyzer input to CN129.TrackinggeneratorSpectrumanalyzerRX(A/2)CN86CN129RX(A/2)L110L111Adjust each coil toobtain the frequencyresponse as shown.8.248MHz8.2555MHz8.2405MHz |
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