Icom IC-F2721 Service Manual

Also see for IC-F2710: Operating guide Instruction manual Instruction manual Service manual

Contents

Icom IC-F2721 Service Manual Manual pdf 15 page image

SECTION 5 ADJUSTMENT PROCEDURES5 - 1▄ REQUIRED TEST EQUIPMENTEQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGEDC power supply Output voltageCurrent capacity: 13.6 (13.2) V DC: 20 A or more Audio generator Frequency rangeMeasuring range: 300–3000 Hz: 1–500 mVModulation analyzer Frequency rangeMeasuring range: DC–600 MHz: 0 to ±10 kHz Attenuator Power attenuationCapacity: 50 or 60 dB: 100 WFrequency counterFrequency rangeFrequency accuracySensitivity: 0.1–600 MHz: ±1 ppm or better: 100 mV or betterStandard signalgenerator (SSG)Frequency rangeOutput level: 0.1–600 MHz: 0.1 μV to 32 mV(–127 to –17 dBm)Digital multimeter Input impedance : 10 MΩ/V DC or more AC millivoltmeter Measuring range : 10 mV to 10 VRF power meterMeasuring rangeFrequency rangeImpedanceSWR: 1–75 W: 100–800 MHz: 50 Ω: Better than 1.2 : 1Oscilloscope Frequency rangMeasuring range: DC–20 MHz: 0.01–20 VExternal speaker Input impedanceCapacity: 4 Ω: 10 W or more5-1 PREPARATIONWhen adjusting IC-F2721/D,F2710,F2821/D,F2810, the optional CS-F70/F1700 ADJ ADJUSTMENT SOFTWARE (Rev. 1.0 or later)and JIG CABLE (modifi ed OPC-1122 CLONING CABLE; see illustration on page 5-3) are required.▄ SYSTEM REQUIREMENTS• Microsoft® Windows® 98/98SE/Me/2000/XP• RS-232C serial port (D-sub 9 pin)▄ ADJUSTMENT SOFTWARE INSTALLATIONq Quit all applications when Windows is running.w Insert the CD into the appropriate CD drive.e Double-click the “Setup.exe” contained in the adjustmentsoftware folder in the CD drive.r The “Welcome to the InstallShield Wizard for adjustmentsoftware will appear. Click [Next>].t The “Choose Destination Location” will appear. Then click[Next>] to install the software to the destination folder.y After the installation is completed, the “InstallShield Wiz-ard Complete” will appear. Then click [Finish].u Eject the CD.i The adjustment software icon appears on the desk topscreen.▄ BEFORE STARTING SOFTWARE ADJUSTMENTProgram the adjustment frequencies into the transceiverusing with the cloning software before starting the softwareadjustment. Otherwise, the transceiver can not start softwareadjustment.CAUTION!: BACK UP the originally programmed mem-ory data in the transceiver before program-ming the adjustment frequencies.When program the adjustment frequencies intothe transceiver, the transceiver’s memory datawill be overwritten and lose original memorydata at the same time.Microsoft and Windows are registered trademarks ofMicrosoft Corporation in the U.S.A. and other countries.▄ STARTING SOFTWARE ADJUSTMENTq Connect the transceiver and PC with JIG CABLE.w Turn the transceiver power ON.e Boot up Windows, and click the adjustment software iconon the screen.r Click ‘Connect’ on the adjustment software window, thenappears transceiver’s adjustment screen.t Set or modify adjustment data as desired.• ADJUSTMENT FREQUENCY LISTCH FREQUENCY CONDITIONS1 400.000 MHz [L]450.000 MHz [H]TX powerMode: Low1: Wide2 400.000 MHz [L]450.000 MHz [H]TX powerMode: Low1: Narrow3 400.000 MHz [L]450.000 MHz [H]TX powerMode: Low1: Digital4 400.000 MHz [L]485.000 MHz [H]TX powerModeCTCSS: Low1: Wide: 151.4 Hz5 415.000 MHz [L]485.000 MHz [H]TX powerMode: Low1: Wide6 415.000 MHz [L]485.000 MHz [H]TX powerMode: Low1: Narrow7 415.000 MHz [L]485.000 MHz [H]TX powerMode: Low1: Digital8 435.000 MHz [L]485.000 MHz [H]TX powerMode: Low1: Wide9 435.000 MHz [L]485.000 MHz [H]TX powerMode: Low2: Wide10 435.000 MHz [L]485.000 MHz [H]TX powerMode: High: Wide11 435.000 MHz [L]485.000 MHz [H]TX powerMode: Low1: Narrow12 470.000 MHz [L]520.000 MHz [H]TX powerMode: Low1: Wide13 470.000 MHz [L]520.000 MHz [H]TX powerMode: Low1: Narrow14 470.000 MHz [L]520.000 MHz [H]TX powerMode: Low1: Digital