Kenwood NX-220 K Service Manual

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NX-22063ADJUSTMENT (E TYPE)ItemCondition Measurement Adjustment Specifications /RemarksPanel tuning mode PC test mode Test-equipment Unit Terminal Unit Parts Method4. ReceiveAssist* This adjustment canbe performed onlyin PC test mode.1) Adj item: [ReceiveAssist]2) Adj item: [Low],[Low’], [Center],[High’], [High]Press [Apply All]button to store theadjustment value.Panel [PC testmode][ ],[ ][PC test mode][Automatic Adjustment]1) Press [TuneAssist Voltage]button.2) Press [Apply All]button to storethe adjustmentvalue afterthe automaticadjustment hasfi nished.[Manual Adjustment][V] indicator on thePC window showsVCO lock voltage.Change the adjust-ment value to getVCO lock voltagewithin the limit ofthe specified volt-age.Note:Confirm the VCOlock voltage ap-proximately 3seconds after theadjustment value ischanged.2.5V±0.1V[Automatic Adjustment]After the auto-matic adjustmentis performed, verifythat the VCO lockvoltage is within thevoltage range whichis specified by themanual adjustment.[Manual Adjustment]Press [Apply All]button to store theadjustment valueafter all adjustmentpoints have beenadjusted.Note:The assist adjust-ment value must bebetween from 340to 3550.5. TransmitAssist* This adjustment canbe performed onlyin PC test mode.1) Adj item: [TransmitAssist]2) Adj item: [Low],[Low’], [Center],[High’], [High]PTT: Press[Transmit] button.Press [Apply All]button to store theadjustment value.6. Frequency * This adjustment canbe performed onlyin PC test mode.1) Adj item: [Frequency]SSG output:–20dBm (22.4mV)(CW (withoutmodulation))Caution:Perform the frequencyadjustment under thefollowing conditions.• Temperaturerange of +20°C to+26°C (+68.0°F to+78.8°F).(The temperatureis displayed on theFrequency adjust-ment screen of theKPG-141D.)• Use an accuracyof 0.003ppm forthe SSG. (Use astandard oscillator ifnecessary.)SSG Panel ANT [PC test mode]Press [Start] buttonof “Auto Tuning”.Press [Apply] but-ton to store theadjustment valueafter the automaticadjustment hasfi nished.[PC test mode]“IF20” value =Within 0±12 digits.The value of “IF20”will become around“0” after the adjust-ment has finished.Remark:“Frequency” isadjusted underreceiving conditionwith SSG.