Icom IC-M401EURO Service Manual

Also see for IC-M401EURO: Instruction manual

Contents

5 - 25-2 PLL ADJUSTMENTSLOCKVOLTAGEREFERENCEFREQUENCYADJUSTMENTADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINTUNIT LOCATION UNIT ADJUST121• Operating channel : ch16• Receiving• Operating channel : ch16• Output power : Low• Transmitting• Operating channel : ch16• Output power : Low• Connect an RF power meter or a50 Ω dummy load to the antennaconnector.• TransmittingMAINRearPanelConnect a digitalmulti-meter or oscil-loscope to thecheck point CP1.Loosely couple thefrequency counterto the antenna con-nector.1.8 V1.6 V156.8000 MHz MAINVerifyC36C36Reference frequencyadjustmentCP1PLL lock voltagecheck point