Icom IC-A220 Installation Manual

INSTALLATION MANUAL (IM)

VHF AIR BAND TRANSCEIVER

Certified TSO C128a and C169a

A-7186D-2EX-6

iA220

Thank you for choosing this Icom product. 

READ ALL INSTALLATION MANUAL carefully and 

completely before using this product.

Icom, Icom Inc. and Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, 

Spain, Russia, Australia, New Zealand, and/or other countries.

q

 Mounting bracket ………………………………………… 1

w

 D-Sub 25 pin connector  ……………………………… 1

e

 Connector pins (M39029/63-368) ……………………… 25

r

 Screws Bind UNC (No. 4 × 3/8) ……………………… 2

t

 K-Lock Nut (No. 4) ……………………………………… 2

y

  BNC -LP   ………………………………………………… 1

u

 Washer (Icom washer V)  ……………………………… 1

i

 C-shaped ring  …………………………………………… 1

o

 Antenna cable clip  ……………………………………… 1

!0

 Self crimping nut (No. 6)  ……………………………… 1

!1

 Screw (No. 6 × 1/2) ……………………………………… 1

!2

 Nut (No. 6) ……………………………………………… 1

!3

 Crimp nuts (No. 6) ……………………………………… 6

!4

 Speed nut UNC (No. 6) ………………………………… 4

!5

 Screws (No. 6 × 1/2) …………………………………… 6

!6

 COMM1 sticker ………………………………………… 1

!7

 COMM2 sticker ………………………………………… 1

z

 SUPPLIED ACCESSORIES

q

w

e

r

t

y

u

i

o

!0

!1

!2

!3

!4

!5

!6

!7

1.   Check the quantity of parts. 

 Refer to z

 SUPPLIED ACCESSORIES.

2.   Prepare miscellaneous items required for installation. 

 Refer to miscellaneous items in z 

SUPPLIED 

ACCESSORIES.

3.   Prepare the required wiring. 

 Refer to m 

CONNECTOR INFORMATION and , 

CONNECTING THE CABLES FOR D-SUB 25 PIN.

4.   Assemble supplied mounting bracket and other parts. 

 Refer to . 

MOUNTING BRACKET ASSEMBLY.

5.   Cut the mounting hole. 

 Refer to ⁄0 

MARKING A MOUNTING HOLE.

6.   Mount the transceiver into the mounting bracket. 

 Refer to ⁄1 

MOUNTING TO THE BRACKET.

7.   Check the transceiver operation. 

 Refer to ⁄2 

OPERATION CHECK.

x

 IMPORTANT

b

 INSTALLATION PROCEDURES

,

 CONNECTING THE CABLES FOR D-SUB 25 PIN

m

 CONNECTOR INFORMATION

The following accessories are supplied with the transceiver. 

Carefully check the quantity of each part.

 The following items are required for installation but are 

NOT 

supplied with the transceiver.

 •VHF antenna for the air communication band

 •Various cables

 •An antenna cable with a BNC connectors (50 Ω)

 •Switches to be mounted on the aircraft yoke

 •Headphones (500 Ω)

 •Low-impedance carbon or dynamic microphone

 •Preamplifier for a dynamic microphone

D

COMM1 and COMM2 stickers

When two transceivers are installed, attach the supplied 

COMM1 and COMM2 stickers to distinguish one from the 

another.

COMM

COMM1  or  COMM2  sticker

READ THIS INSTALLATION MANUAL

CAREFULLY

before

install

the

transceiver. This installation manual 

contains important safety instructions.

NEVER install the transceiver where normal navigation of 

the aircraft may be hindered.

NEVER install an antenna near any aircraft projection, 

engine, or propeller.

Install a circuit breaker between the aircraft battery and the 

transceiver.

Check operation after installation.

Install the transceiver according to the procedures of this 

installation manual.

The antenna should be spaced at least 50 cm (1.6 feet) 

from any position occupied by any person on board the 

aircraft or the vehicle.

D

D-sub 25-pin

Rear view

1 2 3 4 5 6 7 8

16 17 18 19 20

14 15

9 10 11 12 13

21 22 23 24 25

Pin

I/O

Description

Pin

I/O

Description

1

In Memory Channel Switch*

14

–

Aircraft ground

2

In Transmit/receive Interlock

15

–

Aircraft ground

3

In Frequency Exchange Switch*

16

In PTT*

4

In DC power + (13.8/27.5 V)

17

In Intercom switch*

5

In DC power + (13.8/27.5 V)

18

Out External speaker (4 Ω/5 W)

6

–

RS-232C Serial data (GND)

19

–

External speaker (GND)

7

Out RS-232C Serial data (TXD)

20

Out Headphones audio (500 Ω/60 mW)

8

In RS-232C Serial data (RXD)

21

In External Dimmer control

9

–

Microphone (GND)

22

–

Headphones audio (GND)

10

In Microphone 1 (600 Ω)

23

In Auxiliary audio 3

11

In Microphone 2 (600 Ω)

24

–

(reserved)

12

In Auxiliary audio 1

25

–

(reserved)

13

In Auxiliary audio 2

*Ground to activate.

D

Power cable wiring

Use two pairs of #20 AWG wire for the power and power 

grounding connections.

Rear view

5

13

14

25

1

15

4

Circuit breaker

(10 A)

+

13.8 V DC

or 27.5 V DC

Power ground

_

•Circuit breaker

To prevent physical damage, a 10 A circuit breaker 

MUST 

be installed in the DC power line in the aircraft. Install the 

circuit breaker in the aircraft breaker panel or instrument 

panel to ensure easy access during flight.

•Power Ground

Connect the transceiver power ground to the aircraft 

ground.

D

 Yoke-mounted memory and frequency 

exchange switches

For the yoke-mounted memory and frequency exchange 

switches, use a two-position spring loaded rocker switch or 

two separate momentary push switches.

Rear view

OR

1

13

14

25

1

13

14

25

Memory switch

Frequency exchange switch

Memory switch

Frequency exchange switch

3

3

D

Transmit/receive interlock connections

When two transceivers are installed, connect pin 2 to the 

other transceiver’s PTT line, and connect pin 16 to the other 

transceiver

’s

 interlock line to prevent both transceivers from 

simultaneously transmitting.

However, when two transceivers are installed through a 

dual audio panel, the connections are not necessary.

D

Audio line connections

Use #20 ~ #24 AWG wires for connections.

Rear view

1

13

14

25

1

13

14

25

9 10 11

16 17

18

19

20

9 10

16

18

19

20

12

22

23

22 23

12

PTT switch

• One headset

• Two headsets with intercom

External 

speaker

Intercom switch

Microphone 

jack 1

Microphone 

jack 2

Headphone jack 1

Headphone jack 2

PTT switch

Microphone

jack

External 

speaker

Headphone jack

Audio

control

panel

Audio

control

panel

Auxiliary audio 1

Auxiliary audio 2

Auxiliary audio 3

Auxiliary audio 3

Auxiliary audio 2

Auxiliary audio 1

NOTE: If any external intercom system is in use, we 

recommend that you disable the transceiver’s intercom 

function to prevent degradation of the audio signal.

If any degradation exists, leave pin 17 disconnected and 

disable the transceiver’s intercom function by following the 

steps below.

1.   While holding down [DUAL], rotate [VOL] to turn ON 

the transceiver.

 •The configuration menu is displayed.

2.   Rotate [O-DIAL] to select “INCOM MODE.”

3.   Rotate [DIAL] to set “INCOM MODE” to OFF.

4.   Push [RCL] to exit the Configuration menu and restart 

the transceiver.

 •“ICS” disappers.

 Model

  Part Number

1

 Version

  Equipment Class

  Channel Spacing

   Carrier 

Power

  IC-A220

  IC-A220T-2-01/

  IC-A220T-2-02

  USA-06

  Receiver:  D, E

  8.33/25.0 kHz

  8 W

  Transmitter: 4, 6

(1)  Part Number

(      IC-A220T      ) - (             2             ) - (                     01                     )

(      IC-A220T      ) - (             2             ) - (                     02                     )

Base Part Number  - (SW/HW Identifier) - (TSO Minor Change Number)

SW/HW Identifier 

1: Hardware Change Only 

2: Software Change Only 

3: Hardware + Software Change

TSO Minor Change Number 

TSO Minor Change Number with initial value 00 and an increment of 1

   Operating 

Temperature 

Range

   –20°C to +55°C. For more details see the Environmental Qualification Form on the 

Dealers Only page on www.icomamerica.com.

  The EQF part number is A220-0651-0001.

   Environmental 

Testing

   See Environmental Qualification Form on the Dealers Only page on  

www.icomamerica.com.

  The EQF part number is A220-0651-0001.

c

 SPECIFICATIONS

v

 INSTALLATION LIMITATION

The conditions and tests required for TSO approval of 

this article are minimum performance standards. Those 

installing this article, on or within a specific type or class 

of aircraft, are responsible for determining that the aircraft 

installation conditions are suitable for the TSO article.

TSO articles must have separate approval for installation 

in an aircraft. The article may be installed only if performed 

under 14 CFR part 43 or the applicable airworthiness 

requirements.

NEVER bend the cables sharply or place the cables too near 

the aircraft control cables.

DO NOT place the transceiver where hot or cold air blows 

directly on it.

AVOID placing the transceiver in areas with temperatures 

below –20˚C or above +55˚C (–4˚F to +131˚F).

NEVER connect the transceiver to a power source 

using reverse polarity. Reverse polarity will damage the 

transceiver.

To prevent voltage drops, solder or crimp the cable lug 

when connecting the DC power cable to the power supply.

Use a 50 Ω, vertically polarized, VHF air band antenna.

VSWR should be less than 2.5:1.

Mount the antenna on a flat metal surface or install a ground 

plane of at least 120 cm

2

 (18 in

2

).

n

 PRECAUTIONS