Panel Description; Front Panel - Icom IC-R75 Instruction Manual

2

PANEL DESCRIPTION

Front panel

q
w
q POWER SWITCH [POWER]
Push momentarily to turn power ON.
• Turn the optional DC power supply ON in advance.
Push for 2 sec. to turn power OFF.
w HEADPHONE JACK [PHONES] (p. 8)
Accepts headphones.
• When headphones are connected, the internal speaker
or connected external speaker does not function.
e AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker.
r RF GAIN/SQUELCH CONTROL [RF/SQL]
(outer control; pgs. 14, 30)
Adjusts the squelch threshold level. The squelch re-
moves noise output from the speaker (closed con-
dition) when no signal is received.
• The squelch is particularly effective for FM. It is also
available for other modes.
• The control can be set as the squelch plus RF gain con-
trols or squelch control only (RF gain is fixed at maxi-
mum) in set mode.
t PASSBAND TUNING CONTROLS [TWIN PBT]
(p. 15)
Adjust the receiver's "passband width" of the 455
kHz and 9 kHz IF filters for the inner and outer con-
trols, respectively.
• Set to the center positions when not in use.
2
Speaker Function display (p. 5)
AF RF/SQL TWIN PBT
PHONES POWER
P.AMP ATT NR ANF
e r
! 8 ! 7
COMMUNICATIONS RECEIVER
SSB CW/RTTY FIL
AM FM TS
ANT
SET
CLOCK
NB AGC
t y u i o
y CLOCK MODE SWITCH [CLOCK] (p. 28)
Toggles between frequency indication and clock in-
dication when pushed.
u ANTENNA SELECTOR/SET MODE SWITCH
[ANT/SET] (pgs. 16, 30)
While in a frequency indication, enters set mode
when pushed.
While in a frequency indication, toggles between
the antenna 1 and 2 connectors when pushed for
2 sec.
While in the clock indication, enters time setting
condition when pushed for 2 sec.
While in a timer indication, toggles the timer ON
or OFF when pushed.
i TUNING DIAL
Changes the displayed frequency, selects set mode
items, etc.
o TUNING DIAL TENSION LATCH
Adjusts the tension of the tuning dial.
!0 LOCK/SPEECH SWITCH [LOCK] (pgs. 13, 34)
Toggles the frequency lock function ON and OFF.
Announces the selected readout frequency when
an optional UT-102 is installed and when pushed
for 2 sec.
! 6 ! 5
1 2 3
ABC DEF
4 5 6
GHI JKL MNO
7 8 9
PRS TUV WXY
.
0
ENT
QZ
! 4
! 3
V/M MW CLR
! 2
SEL SCAN
DN UP
LOCK
! 0 ! 1