Icom IC-735 Instruction Manual page 17

0 GROUND TERMINAL
® RECEIVER ANTENNA OUTPUT JACK
0 RECEIVER INPUT JACK
To prevent electrical shock, TV I, BCI and other problems, be sure to
ground the equipment through the GROUND TERMINAL. For best
results use the heaviest gauge wire or strap possible and make the
connection as short as possible, even in mobile installations.
The receive signals from the ANTENNA CONNECTOR pass through
the transmit/receive antenna switching circuit to this jack. Normally,
the receiver IN and OUT jacks are connected together with a jumper.
The ANTENNA OUTPUT JACK is useful when operating with a
separate receiver or an external preamplifier.
This is an input jack which connects directly to the receiver front
end.
® TRANSVERTER (X-VERTER) JACK
0 EXTERNAL SPEAKER JACK
® KEY JACK
0 ALC JACK
(3
SEND JACK
©REMOTE CONTROL JACK
©ACCESSORY (ACC) CONNECTORS
(1), (2)
13 COMP (SPEECH COMPRESSOR)
LEVEL CONTROL
Connect a suitable transverter to this jack for operation on the
VHF/UHF frequencies. The output is approximately 30mV.
Connect an external speaker to this jack, if required. Use a speaker
with an impedance of 4 16 ohms and remember, the built-in speaker
does not function when using the EXTERNAL SPEAKER JACK.
For CW operation, connect a CW key here using the supplied
standard 1/4 inch, 3-conductor plug. The terminal voltage from
external electronic keyers must be less than 0.4 volts DC.
When using the IC-735 internal iambic keyer, connect an iambic
keyer paddle with a 1/4 inch, 3-conductor plug.
This is an input jack for the Automatic Level Control (ALC) lead
from a linear amplifier. The ALC input voltage must be in the range
from 0 to —4 volts.
This jack connects to the transmit/receive relay, and it is grounded
when the push-to-talk switch is operated.
This is a communications port designed for use with a personal
computer to remotely operate the transceiver functions. The jack
accepts/transmits serial data by using only one signal and one ground
line.
These connectors provide signals such as T/R switching, receiver
output, etc. See page 24 for detailed information.
This control varies the compression level when the COMP SWITCH is
pushed IN. The preset circuit gain is approximately 10dB.