Icom IC-F70DS, Service Manual

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INTRODUCTION
This service manual describes the latest service information
for the
IC-F70DT/DS and IC-F70T/S VHF TRANSCEIVER
at the time of publication.
DANGER
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than 7.2 V. 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.
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>
1130010100 S.IC LMX2352TM IC-F70DS MAIN UNIT 5 pieces
8810010120 Screw PH B0 M2
×
8 SUS ZK IC-F70DS CHASSIS 10 pieces
Addresses are provided on the inside back cover for your
convenience.
REPAIR NOTES
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 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 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 test equipment thoroughly before connecting equipment to the transceiver.
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.
IC-F70DT/T
MODEL 10-KEYPAD APCO25
IC-F70DS
No
Compatible
Not compatible
IC-F70S FM only
IC-F70DT
Yes
Compatible
Not compatible
IC-F70T FM only