Icom IC-R75 Service Manual

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Icom IC-R75 Service Manual Manual pdf 13 page image

4 - 1SECTION 4 ADJUSTMENT PROCEDURES4-1 PREPARATION‘‘ REQUIRED TEST EQUIPMENT‘‘ CONNECTIONEQUIPMENTDC power supplyFrequency counterAudio generatorDC VoltmeterGRADE AND RANGEOutput voltage : 13.8 V DCCurrent capacity : 2 A or moreFrequency range : 0.1–60 MHzFrequency accuracy : ±1 ppm or betterSensitivity : 100 mV or betterFrequency range : 0.1–60 HzMeasuring range : 0.01–10 mVInput impedance : 50 kΩ/V DC or betterEQUIPMENTOscilloscopeAC millivoltmeterExternal speakerStandard signalgenerator (SSG)GRADE AND RANGEFrequency range : DC–20 MHzMeasuring range : 0.01–20 VMeasuring range : 10 mV–10 VInput impedance : 8 ΩCapacity : 4 W or moreFrequency range : 0.1–300 MHzOutput level : 0.1 μV–32 mV(–127 to –17 dBm)50 ΩANT450 ΩANTDCINEXTSP REMOTEconnectorStandard SignalGeneratorNOTE:The [450 Ω] ANT jack is notused for adjustmentSpeakerACmilli-voltmeterDC power supply13.8 V / 10A 1/8" (3.5 mm)2-conductor plugShorten inner and outer plugsTerminator for the enteringadjustment mode