Icom IC-M710 - Service Manual

Other manuals for Icom IC-M710

Instruction Manual28 pages

Questions and Answers

A
Ashley WatkinsSep 9, 2025
How to fix unclear or distorted received audio on Icom Transceiver?
- R
  robert28Sep 9, 2025
  If the received audio on your Icom Transceiver is unclear or distorted, here are some things to check: * Ensure the proper operating mode is selected by pushing [MODE]. * Activate the AGC function by pushing [AGC], especially if receiving a strong signal. * Turn OFF the noise blanker by pushing [NB] if it's ON while receiving a strong signal. * Adjust the [CLARITY] control to receive proper audio output.
A
Andrea RobertsSep 12, 2025
What to do if Icom Transceiver power does not come on when [POWER] is pushed?
- B
  Brian ScottSep 12, 2025
  If your Icom Transceiver does not power on when you push the [POWER] button: * Ensure the power cable is securely connected. Reconnect it if necessary. * Check the fuse. If it's blown, identify the cause and replace it with a spare.
J
Jennifer WilliamsSep 13, 2025
Why is the sensitivity low and only strong signals are audible on my Icom IC-M710?
- B
  Blake DominguezSep 14, 2025
  If the sensitivity is low and only strong signals are audible on your Icom Transceiver, consider the following: * The antenna may not be properly matched to the operating frequency. Push [TUNE] to tune the connected antenna tuner or select "automatic tuning" using set mode when an optional AT-130/E is connected. * The RF gain might be set too deeply. Reset the RF gain by pushing [FUNC], then [RX]. * The wrong tuner condition may be selected in set mode. Set to the proper condition for the connected tuner.
F
fshermanSep 16, 2025
What to do if all indicators appear and the channel number cannot be read on Icom IC-M710?
- B
  Bradley WoodsSep 16, 2025
  If all indicators appear and the channel number cannot be read on your Icom Transceiver, the highest contrast may be selected in set mode. Set to the proper display contrast.

Summary

Section 1 Specifications

General, Transmitter, and Receiver Specs

Covers frequency, mode, power, sensitivity, emissions, and other key performance parameters.

Section 3 Circuit Description

Receiver Circuit Details

Explains receiver signal paths, filters, mixers, noise blanker, AGC, and squelch circuits.

Transmitter Circuit Details

Details transmitter signal paths, modulation, mixers, power amplifier, ALC, and APC circuits.

PLL and Support Circuitry

Section 4 Adjustment Procedures

Preparation and Test Equipment

PLL and Transmitter Adjustments

Covers calibration procedures for PLL loop lock voltage, reference frequency, and transmitter parameters.

Receiver Adjustments

Details procedures for adjusting receiver gain, clarity, S-meter, and noise blanker settings.

Section 9 Block Diagram

System Block Diagram and Interconnections

Icom IC-M710 Specifications

General

Output Power	150W PEP
Antenna Impedance	50 ohms
Power Supply Requirement	13.8V DC ±15%
Operating Temperature Range	-15°C to +55°C
Type	Marine HF/SSB Transceiver
Frequency Range Transmit	1.6 - 27.5 MHz
Frequency Range Receive	0.5-30 MHz
Mode	SSB, AM
Channels	160