Icom IC-F21 - Manual

Icom IC-F21

Icom IC-F21 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – DO NOT expose the transceiver to rain, snow or any liquids.; using such test equipment.
  • Page 3 – TABLE OF CONTENTS
  • Page 4 – GENERAL
  • Page 5 – • MAIN UNIT; TOP VIEW
  • Page 6 – • REMOVING THE CHASSIS; , to separate the Jack panel and the; • REMOVING THE MAIN UNIT; Remove the sealing rubber.
  • Page 7 – -1 RECEIVER CIRCUITS; type diode switching system.; ND IF AND DEMODULATOR CIRCUITS
  • Page 8 – -2 TRANSMITTER CIRCUITS; APC CIRCUIT
  • Page 9 – PLL CIRCUIT
  • Page 10 – -4 POWER SUPPLY CIRCUITS; VOLTAGE LINE
  • Page 12 – REQUIRED TEST EQUIPMENT; SECTION 5 ADJUSTMENT PROCEDURES; SYSTEM REQUIREMENTS; • IBM PC compatible computer with an RS -232C serial port; ADJUSTMENT SOFTWARE INSTALLATION; - Quit all applications when Windows is running.; STARTING SOFTWARE ADJUSTMENT; Boot up Windows, and turn the transceiver power ON.
  • Page 13 – JIG cable; Screen display exampe
  • Page 14 – Connection; DC power cable connections
  • Page 16 – -3 SOFTWARE ADJUSTMENT
  • Page 17 – SOFTWARE ADJUSTMENT – continued
  • Page 18 – SECTION 6 PARTS LIST
  • Page 23 – Screw abbreviations
  • Page 25 – TRANSISTOR AND FET’S
  • Page 26 – • TOP VIEW
  • Page 27 – • BOTTOM VIEW
  • Page 30 – BC-146 OPTIONAL DESKTOP CHARGER INFORMATION; 0-2 DISASSEMBLY INFORMATION
  • Page 32 – BLOCK DIAGRAM
  • Page 33 – VOLTAGE DIAGRAM
  • Page 36 – CHASSIS UNIT; CH VERSION
  • Page 38 – VHF FM TRANSCEIVERS
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SERVICE

MANUAL

1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan

S-13717IZ-C1

© 2001 Icom Inc.

UHF FM TRANSCEIVERS

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Summary

Page 2 - DO NOT expose the transceiver to rain, snow or any liquids.; using such test equipment.

INTRODUCTION DANGER ORDERING PARTS REPAIR NOTES This service manual describes the latest service informationfor the IC-F21/IC-F21S at the time of publication. NEVER connect the transceiver to an AC outlet or to a DCpower supply that uses more than 16 V. Such a connectioncould cause a fire hazard and...

Page 3 - TABLE OF CONTENTS

TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-2 TRANSMITTER CIRCUITS . . . . . . ....

Page 4 - GENERAL

1 - 1 SECTION 1 SPECIFICATIONS ‘ ‘ GENERAL • Frequency coverage : 440.000–470.000 MHz • Type of emission : 16K0F3E (at 25 kHz), 8K50F3E (at 12.5 kHz) • Number of channels : 2 ch (IC-F21S), 16 ch (IC-F21) • Power supply requirement : 7.2 V DC (negative ground) • Current drain (approx.) : Transmit at ...

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