Acc Sockets - Icom IC-756 Instruction Manual

PANEL DESCRIPTION 1
NOTE: When using an optional AH-3 HF AUTOMATIC
ANTENNA TUNER, connect it to the [ANT 1] connector.
The internal antenna tuner activates for [ANT2] and
, deactivates for [ANT 1] when connecting the AH-3. a
MOAQQ°
© ACC SOCKETS
"HIGH" level : More than 2.4 V
1 RTTY | Controls RTTY keying. "LOW" level : Less than 0.6 V
Output current : Less than 2 mA
Connects to ground. Connected in parallel with ACC(2) pin 2.
input/output pin. Ground level : —0.5 V to 0.8 V
Goes to ground when transmitting. | Output current : Less than 20 mA
When grounded, transmits. Input current (Tx) : Less than 200 mA
Connected in parallel with ACC(2) pin 3.
4 Modulator input. Input impedance : 10 KQ
Connects to a modulator. Input level : Approx. 100 mV rms
5 AF AF detector output. Output impedance : 4.7 KQ
Rear panel Fixed, regardless of [AF] position. Output level : 100 to 300 mV rms
view Squelch output. Squelch open : Less than 0.3 V/5 mA
Goes to ground when squelch Squelch closed : More than 6.0 V/100 pA
opens.
: Output current : Max. 1 A
ASO Ne T We Gv OPUNE rowel ISON, Connected in parallel with ACC(2) pin 7.
Control voltage :-4toO0V
ALC voltage input. Input impedance : More than 10 kQ
Connected in parallel with ACC(2) pin 5.
Output vole : 8 V 0.3 V
REJEA Meguiated E ONpuL Output current : Less than 10 mA
2 | GND | Same as ACC(1) pin 2.
SEND ) Same as ACC(1) pin 3.
Output voltage :0to 8.0V
| ALC | Same as ACGIH) pin 8.
ae
Rear panel
view
12