Icom IC-R20, Руководство по обслуживанию

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INTRODUCTION
DANGER
This service manual describes the latest service information
for the
IC-R20 COMMUNICATIONS RECEIVER at the time
of publication.
This service manual covers each versions.
MODEL
IC-R20
VERSION
[USA], [EXP-01],
[CAN]
[EUR], [EXP-02]
[UK], [SEA]
AC adapter
BC-149A
BC-149D
–
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 >
1110003200 S.IC TA31136FN IC-R20 RF UNIT 5 pieces
8930062430 Key 2699 Keyboard IC-R20 Chassis 12 pieces
Addresses are provided on the inside back cover for your
convenience.
NEVER connect the receiver to an AC outlet or to an exter-
nal DC power supply that uses more than 6.3 V. This will ruin
the receiver.
DO NOT expose the receiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when
connecting the receiver.
DO NOT apply an RF signal of more than 20 dBm (100 mW)
to the antenna connector. This could damage the receiver’s
front end.
REPAIR NOTES
1. Make sure a problem is internal before disassembling the receiver.
2.
DO NOT open the receiver until the receiver 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 receiver is defective.
6. READ the instructions of test equipment thoroughly before connecting equipment to the receiver.
To upgrade quality, any electrical or mechanical parts and
internal circuits are subject to change without notice or
obligation.
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.