INTRODUCTION
DANGER
ORDERING PARTS
REPAIR NOTES
This service manual describes the latest service information
for the IC-M2A/IC-M21 VHF MARINE TRANSCEIVER at the
time of publication.
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than 10 V. This will ruin the
transceiver.
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 transceiv-
er’s front end.
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>
1130007020 S.IC
TC7S66FU
IC-M2A
MAIN UNIT
1 piece
8810004860 Screw
PH M 2 x 6 ZK
IC-M21
Chassis
10 pieces
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 40 dB to 50 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.
To upgrade quality, all electrical or mechanical parts and
internal circuits are subject to change without notice or oblig-
ation.
IC-M2A
IC-M21
Model
IC-M2A
IC-M21
Version
U.S.A.
S.E.Asia
Europe
United Kingdom
Germany
Symbol
[USA]
[SEA]
[EUR]
[UK]
[FRG]
AC adapter
BC-147A
BC-147E
BC-147E
TX high power
5W
1W
Содержание IC-M2A
Страница 1: ...SERVICE MANUAL VHF MARINE TRANSCEIVER...
Страница 25: ...SECTION 9 BOARD LAYOUTS 9 1 CHARGE UNIT BC 150 TOP VIEW BOTTOM VIEW 9 1 DS1 R3 J1 R2 R1 B5787B MP2 MP1...
Страница 28: ...9 4 9 3 VR UNIT TOP VIEW R500 B5715A to the MAIN unit J240 VCC VCC NC VOLIN VOLO GND BOTTOM VIEW...
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