Icom IC-M72 Service Manual page 7

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Instruction manual (40 pages)

Instruction manual (40 pages)

Instruction manual (20 pages)

Table Of Contents

Table of Contents

SECTION 3

1 Removing the chassis panel

q Unscrew 2 screws A and 4 screws B.

w Disconnect the speaker cable C and remove the

chassis from the front pannel. (The latch is come off

simultaneously)

2 Removing the MAIN unit

q Unscrew 5 screws D.

w Disconnect the flat cable E.

DISASSEMBLY INSTRUCTIONS

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3 - 1

3 Removing the RF unit

q Unscrew 3 screws F.

w Unsolder 7 points G and remove the RF unit.

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4 Removing the VR board and MIC board

q Remove knob I and connector cap H.

w Unscrew connector nut J and VR nut K.

e Unsolder 9 points L and remove VR board.

r Remove the VR and MIC board from the chassis.

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Questions and answers

Robert Savell

January 22, 2025

Sound does not work

1 comments:

Mr. Anderson

February 10, 2025

The sound might not work on the Icom IC-M72 due to the following reasons:

1. Squelch Level: The squelch level may be set too high, which blocks audio. Adjust it by pushing the appropriate buttons (`[ ]`, `[Y]`/`[Z]`) to lower the squelch level.

2. Volume Setting: The volume may be set too low. Rotate the `[VOL]` knob to increase the volume.

3. Signal Reception: Ensure the radio is receiving a signal. The " " indicator should appear when a signal is being received, and audio should emit from the speaker.

4. Speaker Issue: Check if the speaker is functioning properly. If the external speaker or audio output is faulty, repair or replacement may be needed.

5. Incorrect Channel: Verify that the correct channel is selected, as some channels may not have active transmissions.

If these adjustments do not resolve the issue, further inspection or servicing may be required.