Icom IC-V82 Service Manual

Also see for IC-V82: Instruction manual Addendum Specifications Instruction manual Instruction manual

Contents

5 - 2ADJUSTMENT ADJUSTMENT CONDITION OPERATIONENTERING ADJUSTMENT MODE • While pushing [], [] and [D•CLR] keys, turn power ON.REFERENCEFREQUENCY1 ••Connect a frequency counter tothe antenna connector throughan attenuator.Transmitting• Rotate [VOL] to set to 146.000 MHz ±100Hz.• Push [D•CLR] key.TRANSMITLOCK VOLTAGE1 • Transmitting • Push [D•CLR] key, then push [] key.(Do not release [PTT] button when pushing [D•CLR] key.)OUTPUTPOWER(High)1 ••Connect an RF power meter tothe antenna connector.Transmitting• Rotate [VOL] to set the transmit power to 7.0 W.• Push [D•CLR] key.(Middle) 2 • Transmitting • Rotate [VOL] to set the transmit power to 4.0 W.• Push [D•CLR] key.(Low) 3 • Transmitting • Rotate [VOL] to set the transmit power to 0.5 W.• Push [D•CLR] key.FREQUENCYDEVIATION1 ••••Mode : WideConnect an FM deviation meterto the antenna connector throughan attenuator and set as :HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2Connect an audio generator to[MIC] jack and set as;Frequency : 1 kHzLevel : 150 mV rmsTransmitting• Rotate [VOL] to set to ±4.2 kHz.• Push [D•CLR] key.DIGITAL VCOFREQUENCYDEVIATION1 •••Set the FM deviation meter as;HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2No audio inputTransmitting• Rotate [VOL] to set to ±1.20 kHz.• Push [D•CLR] key.DTCS WAVEFORM1 •••••Mode : WideConnect an oscilloscope andthe FM deviation meter to theantenna connector.Set the FM deviation meter as;HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2No audio inputTransmitting• Rotate [VOL] to set to square wave form asshown below.• Push [D•CLR] key.DIGITALREFERENCEFREQUENCYDEVIATION1 •••Set the FM deviation meter as;HPF : OFFLPF : 20 kHzDe-emphasis : OFFDetector : (P–P)/2No audio inputTransmitting• Rotate [VOL] to set to ±1.20 kHz.• Push [D•CLR] key.5-2 IC-V82 ADJUSTMENTSet to square waveform5-2-1 KEY OPERATION FOR THE ADJUSTMENT• Rotate [VOL] to adjust the value.• Push [D•CLR] key to store the adjustment value and move to next adjustment item.• Push []/[] key to move to next adjustment item without changing the value.5-2-2 FREQUENCY AND TRANSMIT ADJUSTMENTSSSSSSSSS