Icom IC-F80DS Service Manual

Also see for IC-F80DS: Operating guide Instruction manual Instruction manual Instruction manual Service manual addendum

Contents

Icom IC-F80DS Service Manual Manual pdf 16 page image

5 - 45-2 SOFT WARE ADJUSTMENTSelect an operation using [↑] / [↓] keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboardADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUEUNIT OPERATIONPLL LOCKVOLTAGE1 • Operating CH.• Receiving: CH 1 PCscreenClick [Reload (F5)] button, thencheck the "LVIN" item on theCS-F70/F1700 ADJ's screen.0.75–1.45 V(Verify)2 • Operating CH.• Receiving: CH 2 0.55–1.35 V(Verify)3 • Operating CH. : CH 3 0.55–1.15 V(Verify)• Connect an RF power meter or 50 Ωdummy load to the antenna connector.• TransmittingREFERENCEFREQUENCY[REF]• Operating CH. : CH 3 ToppanelLoosely couple a frequencycounter to the antenna connec-tor.470.000000 MHz [L]520.000000 MHz [H]±100 Hz• Connect an RF power meter or 50 Ωdummy load to the antenna connector.• TransmittingDSPREFERENCEFREQUENCY*[Dig REF]• Operating CH. : CH 8 DSPunitConnect a frequency counterto the pin 4 of IC13 on the DSPunit through a 1000 pF capacitor.(see the illust below)12.288000 MHz• ReceivingBASE BANDCENTERVOLTAGE*[Dig DA]• Operating CH.• Receiving: CH 8 PCscreenSet the "Dig DA" item to 70.*; IC-F80DT/DS onlyDSP REFERENCE FREQUENCYCHECK POINT (IC-13, pin 4)DSP UNITMAIN UNIT