Icom IC-M88 Service Manual page 2

INTRODUCTION
This service manual describes the latest service information for
the IC-M88 VHF MARINE TRANSCEIVE R at the time of
publication.
Model Version Symbol
USA
U.S.A.
IC-M88
USA-1
S.E. Asia SEA
To upgrade quality, all electrical or mechanical parts and inter-
nal circuits are subject to change without notice or obligation.
NEVER
connect the transceiver to an AC outlet or a DC
power supply that uses more than 8.3 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
connecting the transceiver.
DO NOT
apply an RF signal of more than 20 dBm (100
mW) to the antenna connector. This could damage the
transceiverís 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>
1110002750 S.IC TA7S01F
8210019100 2600 Front panel IC-M88
Addresses are provided on the inside back cover for your
convenience.
1. Make sure the 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 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 signal generator or a sweep generator.
7. ALWAYS connect a 40 dB or 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.
Battery pack
FM I / S
NO
YES BP-227FM
NO
DANGER
IC-M88 MAIN UNIT 1 piece
CHASSIS
BP-227
BP-227
5 pieces
REPAIR NOTES