Icom IC-725 Instruction Manual

3
SYSTEM
INTERCONNECTIONS
•
HM-12
SCHEMATIC
DIAGRAM
MICROPHONE
MICROPHONE
CABLE
MIC
R PHONE PLUG
3-7
ACC
SOCKET
INFORMATION
(1)
ACC(1).
SOCKET
PIN NO.
PIN NAME DESCRIPTION
SPECIFICATIONS
1
NC No connection.
2
GND Connects
to
ground. Connected
in parallel
with
ACC(2)
pin
2.
3
SEND
Input/output pin.
Goes
to
ground when
transmitting.
When grounded, transmits.
Ground
level :
-0.5
~
0.8
V
Input current
less
than
20
mA
Connected
in parallel with ACC(2)
pin 3.
4 MOD
Modulator input.
Connects
to a
modulator.
Input
impedance
Input
level
: 10
kft
:
Approx. 100
mV rms
5
AF
AF detector output.
Fixed,
regardless
of
[AF] position.
Output
impedance
Output
level
: 4.7
kfi
:
100
~
300
mV rms
6
SOLS
Squelch output.
Goes to
ground when squelch
opens.
SQL
open
SQL
closed
: Less than 0.3
V/5
mA
: More
than 6.0 V/1 00
fiA
7 13.8 V
13.8
V output when power
is ON.
Output
current :
Max.
1 A
Connected
in parallel
with
ACC(2)
pin 7.
8
ALC ALC
voltage
input.
Control
voltage :
-4
~
V
Input impedance :
More than 10
k£2
Connected in parallel
with
ACC(2)
pin 5.
(2)
ACC(2)
SOCKET
PIN
NO,
PIN NAME
DESCRIPTION
SPECIFICATIONS
1
8
V Regulated
8
V
output.
Output
voltage
Output
current
:
8V+0.3V
Less
than 10 mA
2
GND
Same as ACC(1)
pin 2.
3
SEND Same
as
ACC(1)
pin
3.
4 BAND
Band voltage output.
(Varies with amateur band)
Output
voltage
:
0-8.0V
5
ALC
Same as ACC(1)
pin 8.
6
NC No connection.
7
13.8 V
Same as ACC(1)
pin 7.

Icom IC-725 Specifications

General

Brand	Icom
Model	IC-725
Category	Transceiver
Language	English