Icom IC-7851 Servise Manual page 2

INTRODUCTION
This service manual describes the latest technical informa-
tion for the IC-7850/IC-7851
publication.
MODEL VERSION
USA
EUR
FRA
UK
IC-7851
ITR
ESP
KOR
USA-01
IC-7850
EUR-01
ORDERING PARTS
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-7851
8820001210 Screw 2438 screw
Addresses are provided on the inside back cover for your
convenience.
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.
, at the time of
THE TRANSCEIVER
VERSION
NUMBER
[#02]
[#03]
[#04]
[#05]
[#06]
[#07]
[#08]
[#22]
[#23]
MAIN UNIT 5 pieces
IC-7851 Top cover 10 pieces
CAUTION
ONLY connect the transceiver to an AC outlet that is
85 to 265 V.
DO NOT expose the transceiver to rain, snow or liquids.
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.
To upgrade quality, any electrical or mechanical parts
and internal circuits are subject to change without notice
or obligation.
REPAIR NOTES
1. Make sure that the problem is internal before dis-assem-
bling the transceiver.
2. DO NOT open the transceiver until the transceiver is dis-
connected 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 trans-
ceiver is defective.
6. DO NOT transmit power into a Standard Signal Generator
or a Sweep Generator, otherwise the RF power may dam-
age them.
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 thoroughly
before connecting it to the transceiver.
(IC-7851)