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Panel description, Front panel, Eheadphone jack [phones] accepts headphones – Icom IC-756 User Manual

Page 4

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PANEL DESCRIPTION

Front panel

TIMER

POWER

TRANSMIT

PHONES

ELEC-KEY

MIC

TUNER MONITOR

NB

NR

AF

BAL

NR

RF/SQL

MIC GAIN RF POWER

COMP

KEY SPEED BK-IN DELAY

S

Po

0

10

1

1 1.5

2

3

5

9

+20 +40

+60dB

25

50

100

SWR

ALC

F-1

SSB

F-2

F-3

F-4

F-5

CW

RTTY

AM

FM

HF/50MHz TRANSCEIVER

i756

 1ß

VFO

VFO

14.195.000

VFO

VFO

USB

USB

USB

14.100.00

14.100.00

14.205.000

14.205.000

USB

USB

USB

14.100.00

14.100.00

56

56

ß

T X

T X

FILTER

SCAN

MEMORY

SET 

VOX

VOX
OFF

OFF

COMP

COMP
 OFF

OFF

SCOPE 

ANT

ANT

1

METER

METER

Po

Po 

P.AMP

P.AMP

OFF

OFF

ATT

ATT
OFF

OFF

AGC

AGC
MID

MID

2.4k

2.4k

9

2.8k

2.8k

455

455

12:34

12:34

q

w

e

r

t

!3

!4

!5

!6

!7

y

i !0!1 !2

o

u

q

POWER SWITCH [POWER/TIMER]
• Push momentarily to turn power ON.

- Turn the optional DC power supply ON in advance.

• Push momentarily to toggle the timer function ON

and OFF. (p. 52)

- The power switch lights while the timer function is ON.

• Push for 2 sec. to turn power OFF.

w

TRANSMIT SWITCH [TRANSMIT]
Selects transmitting or receiving.

- The [TX] indicator lights red while transmitting and the

[RX] indicator lights green when the squelch is open.

e

HEADPHONE JACK [PHONES]
Accepts headphones.

- When headphones are connected, the internal speaker

or connected external speaker does not function.

r

ELECTRONIC KEYER JACK [ELEC-KEY] (p. 35)
Accepts a paddle to activate the internal electronic
keyer for CW operation.

- Selection between the internal electronic keyer, bug-key

and straight key operation can be made in keyer set
mode. (p. 35)

- A straight key jack is separately available on the rear

panel. See [KEY] on p. 11.

- Keyer polarity (dot and dash) can be reversed in keyer

set mode. (p. 35)

- 4-channel memory keyer is available for your conve-

nience. (p. 36)

t

MICROPHONE CONNECTOR [MIC]
Accepts the supplied or optional microphone.

- See p. 68 for appropriate microphones.
- See p. 8 for microphone connector information.

y

AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker.

u

MIC GAIN CONTROL [MIC GAIN]
Adjusts microphone input gain.

How to set the microphone gain.

Set the [MIC] control so that the ALC meter sometimes
swings during normal voice transmission in SSB mode.

Increases

Decreases

Recommended level for
an Icom microphone

MIC GAIN

AF

RF/SQL

No audio output

Max. audio output

Decreases

Increases

(dot)

(com)

(dash)