![background image](http://html.mh-extra.com/html/icom/ic-7700/ic-7700_service-manual_612323029.webp)
SSB
CW
RTTY/PSK
AM/FM
DATA
AUTO
TUNE
LOCK
TS
XFC
M.SCOPE
EXIT/SET
REC
PLAY
VOICE MEMORY
BRIGHT
CONTRAST
VOX GAIN
MONI GAIN
COMP
X
O
V
I
T
N
A
E
V
I
R
D
F-1
F-2
F-3
F-4
F-5
F-6
F-7
LOCK
TX
RX
SPLIT
1
1.8
2
3.5
3
7
4
10
5
14
6
18
7
21
8
24
MP-W
MP-R
MW
V/M
A/B
A=B
9
28
GENE
0
50
ENT
F-INP
ALC
ADJ
ALC
RELAY
CW KEY
EXT
KEYPAD
METER
DC OUT
15V
MAX1A
REF I/O
10MHz
-10dBm
IN
OUT
REMOTE
RS-232C
EXT-DISPLAY
RX ANT
IN
OUT
S/P DIF
1
2
ACC
EXT-SP
ANT 1
ANT 2
ANT 3
ANT 4
GND
AC
15A
I
X-VERTER
<Reference frequency adjustment screen>
<Rear view>
Digital multimeter
Frequency counter
Adjusts
Never push (Disable)
Return to main menu
Stores the adjustment value
Adjustment item
Adjustment value
Never push (Disable)
4 - 17
• CONNECTION FOR RX ADJUSTMENTS
4-7-3 REFERENCE FREQUENCY