Icom IC-F43GT Service Manual page 2

INTRODUCTION
This service manual describes the latest service information
for the IC-F43GT/GS and IC-F44GT/GS UHF TRANS-
CEIVERS at the time of publication.
MODEL CHANNEL SPACING
12.5/25.0
12.5/25.0
IC-F43GT
12.5/25.0
12.5/25.0
IC-F44GT 12.5/20.0/25.0
12.5/25.0
12.5/25.0
IC-F43GS
12.5/25.0
12.5/25.0
IC-F44GS 12.5/20.0/25.0
To upgrade quality, all electrical or mechanical parts and
internal circuits are subject to change without notice or oblig-
ation.
DANGER
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than 8 V. Such a connection
could cause a fire or electric hazard.
DO NOT expose the transceiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when con-
necting the transceiver.
DO NOT apply an RF signal of more than 20 dBm (100mW)
to the antenna connector. This could damage the trans-
ceiver's front end.
ORDERING PARTS
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit order numbers
2. Component part number and name
3. Equipment model name and unit name
4. Quantity required
<SAMPLE ORDER>
5030002760 LCD FX-2721 LCD
8810009220 Screw BO 2x8 ZK
Addresses are provided on the inside back cover for your
convenience.
1. Make sure a problem is internal before disassembling the transceiver.
2. DO NOT open the transceiver until the transceiver is disconnected from its power source.
3. DO NOT force any of the variable components. Turn them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the transceiver is defective.
6. DO NOT transmit power into a signal generator or a sweep generator.
7. ALWAYS connect a 30 dB to 40 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when
using such test equipment.
8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
Icom, Icom Inc. and are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom,
Germany, France, Spain, Russia and/or other countries.
SYMBOL FREQUENCY
USA–01 400–470 MHz
USA–02 450–512 MHz
GEN–01 400–470 MHz
450–520 MHz
GEN–02
EUR–01 400–470 MHz
USA–01 400–470 MHz
450–512 MHz
USA–02
400–470 MHz
GEN–01
GEN–02
450–520 MHz
EUR–01 400–470 MHz
IC-F43GT Main unit 5 pieces
IC-F43GT Chassis 10 pieces
REPAIR NOTES