Icom IC-F24 Service Manual

Also see for IC-F24: Instruction manual Instruction manual Servise manual

Contents

Icom IC-F24 Service Manual Manual pdf 13 page image

5 - 1SECTION 5 ADJUSTMENT PROCEDURES5-1 PREPARATIONWhen adjusting IC-F24/F25/S, the optional CS-F14 ADJ ADJUSTMENT SOFTWARE (Rev. 1.0 or later), JIG cable (see the illustbelow) and OPC-478 (RS-232 type) or OPC-478U (USB type) CLONING CABLE are required. REQUIRED TEST EQUIPMENTS SYSTEM REQUIREMENTS• Microsoft® Windows® 98/SE/ME/2000/XP• RS232C/USB port BEFORE STARTING SOFTWARE ADJUSTMENTClone adjustment freqencies, TX power, CTCSS frequency,DTCS code and IF bandwidth (see ADJUSTMENTCONFIGULATION on the next page) into the transceiverusing with the CS-F14 CLONING SOFTWARE before startingSOFTWARE ADJUSTMENTS. Otherwise, the transceivercan not be adjusted.CAUTION!: BACK UP the originally programmed memorydata in the transceiver before programmingthe adjustment frequencies.When program the adjustment frequenciesinto the transceiver, the transceiver’s memorydata will be overwritten and lose originalmemory data at the same time.EQUIPMENTDC power supplyFM deviation meterFrequency counterDigital multimeterRF power meter(terminated type)GRADE AND RANGEOutput voltage : 7.2 V DCCurrent capacity : 5 A or moreFrequency range : DC–600 MHzMeasuring range : 0 to ±10 kHzFrequency range : 0.1–600 MHzFrequency accuracy : ±1 ppm or betterSensitivity : 100 mV or betterInput impedance : 10 MΩ/V DC or betterMeasuring range : 1–10 WFrequency range : 100–600 MHzImpedance : 50 ΩSWR : Less than 1.2 : 1EQUIPMENTAudio generatorAttenuatorStandard signalgenerator (SSG)DC voltmeterOscilloscopeAC millivoltmeterGRADE AND RANGEFrequency range : 300–3000 HzOutput level : 1–500 mVPower attenuation : 20 or 30 dBCapacity : 10 W or moreFrequency range : 100–600 MHzOutput level : 0.1 μV–32 mV(–127 to –17 dBm)(As open circuit.)Input impedance : 50 kΩ/V DC or betterFrequency range : DC–20 MHzMeasuring range : 0.01–20 VMeasuring range : 10 mV–10 VMicrosoft and Windows are registered trademarks ofMicrosoft Corporation in the U.S.A. and other countries. STARTING SOFTWARE ADJUSTMENT(1) Connect IC-F24/F25/S and PC with OPC-478/Uand JIG CABLE.(2) Turn the transceiver power ON.(3) Boot up Windows, and click the program group 'CS-F14 ADJ’in the ‘Programs’ folder of the [Start] menu, then CS- F14ADJ’s window appears.(4) Click ‘Connect’ on the CS-F14’s window, then appearsIC-F14’s up-to-date condition.(5) Set or modify adjustment data as desired.OPC-478/UJIG cableTo IC-F24/F25/S[SP] jack3-conductor 3.5(d) mm plug( SP + )(CLONE)(GND)(SP − )JIG CABLESINAD meter Measuring range : 20–20 kHz