Icom IC-F3 Service Manual page 2

INTRODUCTION
This service manual describe the latest information for the
IC-F3/IC-F3S and IC-F4/IC-F4S at the time of publication.
DANGER
NEVER
connect the transceiver to an AC outlet or to a DC
power supply that uses more than 16 V. Such a connection
could cause a fire hazard and/or electric shock.
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
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>
1110001810 S.IC TA7368F
8810009510 Screw B0 2 4 NI-ZU IC-F4
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 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 analyser when
using such test equipment.
8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
IC-F3S MAIN UNIT 1 piece
MAIN PCB 6 pieces
REPAIR NOTES
IC-F3 IC-F4S