This service manual describes the latest technical informa-
tion for the
IC-M400BB
VHF MARINE TRANSCEIVER, at the
time of publication.
To upgrade quality, any electrical or mechanical parts
and internal circuits are subject to change without notice
or obligation.
MODEL
VERSION
SUPPLIED
MICROPHONE
IC-M400BB
USA
–
UK
EUR
HOL
FRG
USA-01
HM-195B
UK-01
EUR-01
HOL-01
FRG-01
USA-02
HM-195SW
EUR-02
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit Icom part number
2. Component name
3. Equipment model name and unit name
4. Quantity required
<ORDER EXAMPLE>
1110003491 S.IC
TA31136FNG IC-M400BB MAIN UNIT 5 pieces
8820001210 Screw 2438 screw
IC-M400BB Top cover
10 pieces
Addresses are provided on the inside back cover for your
convenience.
ORDERING PARTS
REPAIR NOTES
INTRODUCTION
CAUTION
(HM-195B/SW*)
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the
United Kingdom, Germany, France, Spain, Russia and/or other countries.
NEVER
connect the transceiver to an AC outlet or to a DC
power supply that uses more than the specified voltage.
This will ruin the transceiver.
DO NOT
reverse the polarities of the power supply when
connecting the transceiver.
DO NOT
apply an RF signal of more than 20 dBm (100 mW) to
the antenna connector. This could damage the transceiver’s
front-end.
1. Make sure that the problem is internal before dis-
assembling 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
shor t any circuits or electronic par ts. An
insulated tuning 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 Standard Signal Generator
or a Sweep Generator.
7.
ALWAYS
connect a 50 dB to 60 dB attenuator between
the transceiver and a Deviation Meter or Spectrum
Analyzer, when using such test equipment.
8.
READ
the instructions of the test equipment throughly
before connecting it to the transceiver.
*; May not be supplied, depending on the transceiver version.
