Icom IC-7800 Instruction Manual page 3

2
INSTALLATION AND CONNECTIONS
D D Rear panel— 2
External Display
EXT-DISPLAY
Ethernet connector (p. 16-6)
Connects a PC
via a LAN for the
CPU
update.
[S/P DEAF IN/OUT]
Connects a PC-style
monitor display (at least
800×600 resolution).
Video output signal can
be turned ON and OFF
in set mode (p. 12-12)
ANT 1 ANT 2
S/P DID
KEY BOARD RS-232C REMOTE OUT
firmware
Connects a PC for
audio signal data
input/output.
48 kHz, 16-bit
Stereo output
(L=Main band;
R=Sub band)
Keyboard
Connects an USB type
PC keyboard directly for
RTTY/PSK31 operation,
as well as other text edit
operations.
ANT 3 ANT 4
REF I/O DC OUT
10MHz 15V EXT
IN -10dBm MAX1A METER KEYPAD KEY RELAY
[METER]
Connects an external meter, etc.
MAIN band meter
SUB band meter
1⁄8≤
3.5 (d) mm; plug
External keypad
Connects an external keypad for direct voice memory
and memory keyer controls.
1⁄8≤
3.5 (d) mm; plug
Mute switch: Mutes both transmission and
reception when switched ON during trans-
ceive operation, etc.
2-6
[DC OUT]
Outputs regulated 14 V
(approx.) DC for external
equipment power supply.
(max. 1 A capacity)
OUT IN X-VERTER OUT
RX ANT RX ANT
B
A
I
AC
GND
B A
ALC
ALC ADJ ACC 2 ACC 1 ACC 2 ACC 1
EXTERNAL KEYPAD
1.5 kΩ 1.5 kΩ 2.2 kΩ 4.7 kΩ
±5% ±5% ±5% ±5%
S1 S2 S3 S4
(T1/M1) (T2/M2) (T3/M3) (T4/M4)
IN
EXT-SP
SUB MAIN