Icom IC-A220 Installation Manual page 2

CONNECTING THE CABLES FOR CARD EDGE CONNECTOR (MBA-3)
,
D Power cable wiring
Use 2 pairs of #18 AWG wire for the power and power
connections.
Front view
_
Power ground
A F R S
1 6 14 15
+
13.8 V DC
Circuit
breaker or 27.5 V DC
(10 A)
• 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 2
separate momentary push switches.
Front view
A L S
1 12
15
Frequency
exchange
switch
Memory switch
OR
L S
A
15
1 12
Frequency
exchange
switch
Memory switch
D Transmit/receive interlock connections
When 2 transceivers are installed, connect pin N to the
other transceiver PTT line, and connect pin 9 to the other
's
transceiver 's interlock line to prevent both transceivers from
simultaneously transmitting.
However, when 2 transceivers are installed through a dual
audio panel, the connections are not necessary.
MARKING A MOUNTING HOLE
⁄0
D Notes for making the mounting hole
The transceiver can be mounted securely in the supplied
mounting bracket.
Remember to allow adequate space for installation of
cables and connectors.
When installing 2 or more transceivers in a stack, the
mounting bracket should be 1.3 mm ( 0.05" ) apart.
D Mounting bracket dimensions
260 mm (10.2 ")
D Front panel dimensions
DUAL EC
VOL
118.00 128.10
PUSH
OFF
TEST
160 mm (6.3")
Allow space for the front panel as shown above.
D Template
Cut out dimensions for the mounting bracket as follows.
D Audio line connection
Use #24 AWG wire for the connections.
• Connecting 2 headsets to the intercom
PTT switch
Intercom switch
External speaker
A C D E H J K S
1 3 4 5 7 8 9 10 15
Headphone jack 1
(to 500 Ω Headphones)
Headphone jack 2
Auxiliary audio 1
Auxiliary audio 3
Audio control panel
Auxiliary audio 2
• Connecting 1 headset
PTT switch
External speaker
A C D E H J S
1 4 5 7 8 9 15
Headphone jack
Auxiliary audio 1
Auxiliary audio 3
Audio control panel
Auxiliary audio 2
D GPS receiver connection
Connect the GPS receiver's input terminal to the pin 1, and
output terminal to pin 2.
Front view
A S
1 2 15
GPS receiver's output
GPS
receiver
GPS receiver's input
The mounting bracket has 0.6 mm ( 0.024" ) dimples in the
top, bottom, and both sides for proper spacing.
Mark and cut the mounting holes.
To support the mounting bracket, the rear mounting bosses
should be attached to the airframe.
33 mm (1.3")
160 mm (6.3")
COMM
RCL
MEM
160 mm (6 ")
5 ⁄
16
MOUNTING BRACKET ASSEMBLY
.
Microphone
jack 1
Microphone
jack 2
!0 Self-crimping nut
o Antenna cable clip
!2 Nut
t K-Lock Nut
Microphone
jack
!3 Crimp nut
e Connector pins
w D-sub 25 pin connector
MOUNTING TO THE BRACKET
⁄1
D Transceiver installation
1. Remove the front panel from the transceiver's main unit.
- Use a 3 ⁄ " allen driver.
32
- Carefully disconnect the cable from the front panel.
(Fig. 1)
2. Insert a 3 ⁄ " allen driver into the lock screw and rotate
32
the driver counterclockwise until the metal catch
touches the back of the lock chassis. (Fig. 2)
Main unit front view
Main unit front view
3. Insert the main unit (transceiver) into the mounting
bracket. (Fig. 3)
4. Turn the lock screw clockwise until the main unit
(transceiver) is fixed to the bracket. (Fig. 4)
5. Connect the cable. (Fig. 5)
6. Attach the front panel and tighten the allen screws.
(Fig. 5)
Fig. 1
CAUTION: Treat the cable with
care when disconnecting it.
Fig. 4
OPERATION CHECK
⁄2
Check the following points after transceiver installation.
- Polarity of the power supply.
- NO interference caused to other equipment.
- NO noise or interference from other equipment.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
Printed on recycled paper with soy ink.
Coaxial
connector
q Mounting
bracket
L-type BNC
y BNC-LP
connector
(User supplied, if required)
u Washer
y BNC-LP
i C-shaped ring
!4 Screws
!1 Screw
r Screws Bind UNC
CAUTION: Make sure that the cable between the
transceiver and front panel is securely connected. The
transceiver may not function properly when loose or when
Connect the cable. (Fig. 7)
a wrong connection is made.
Improper cable connection can cause damage and result
in severe non-warranty repair.
D Transceiver removal
The transceiver can be easily removed from the mounting
bracket, if required.
1. Remove the front panel from the transceiver's main unit.
- Use a 3 ⁄ " allen driver.
32
- Carefully disconnect the cable from the front panel.
2. Insert a 3 ⁄ " allen driver into the lock screw and rotate
32
the driver counterclockwise until the metal catch
touches the back of the lock chassis.
3. Slowly pull the transceiver out from the mounting bracket.
4. Connect the cable to the front panel.
5. Attach the front panel and tighten the allen screws.
Fig. 2 Fig. 3
Metal catch
Cable
CAUTION: Treat the cable
with care when connecting it.
- VSWR is less than 2.5:1.
- Communication capability on both the highest and lowest
communication frequencies, if possible.
q Mounting
bracket
A-7210D-2EX-e
Printed in Japan
© 2015–2017 Icom Inc.