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2-11

2

INSTALLATION AND CONNECTIONS

Accessory connector information

ACC 2

PIN No. NAME

DESCRIPTION

SPECIFICATIONS

ACC 1

PIN No. NAME

DESCRIPTION

SPECIFICATIONS

NOTE: If the CW side tone level limit or beep level
limit is in use, the CW side tone or beep tone de-
creases from the fixed level when the [AF] control is
rotated above a specified level. (p. 12-6)

1

2

3

4

5

6

7

8

“High” level

: More than 2.4 V

1

RTTY Controls RTTY keying

“Low” level

: Less than 0.6 V

Output current

: Less than 2 mA

2

GND

Connects to ground.

Connected in parallel with ACC 2 pin 2.

Input/output pin.

Ground level

: –0.5 V to 0.8 V

3

SEND Goes to ground when transmitting.

Output current

: Less than 20 mA

When grounded, transmits.

Input current (Tx)

: Less than 200 mA

Connected in parallel with ACC 2 pin 3.

4

MOD

Modulator input.

Input impedance

: 10 k

Connects to a modulator.

Input level

: Approx. 100 mV rms

AF detector output.

Output impedance : 4.7 k

5

AF

Fixed, regardless of [AF] position

Output level

: 100–300 mV rms

in default settings. (see notes below)

6

SQLS

Squelch output.

SQL open

: Less than 0.3 V/5 mA

Goes to ground when squelch opens.

SQL closed

: More than 6.0 V/100 µA

7

13.8 V 13.8 V output when power is ON.

Output current

: Max. 1 A

Connected in parallel with ACC 2 pin 7.

Control voltage

: –4 V to 0 V

8

ALC

ALC voltage input.

Input impedance

: More than 10 k

Connected in parallel with ACC 2 pin 5.

1

8 V

Regulated 8 V output.

Output voltage

: 8 V ±0.3 V

Output current

: Less than 10 mA

2

GND

Same as ACC 1 pin 2.

3

SEND

Same as ACC 1 pin 3.

4

BAND

Band voltage output.

Output voltage

: 0 to 8.0 V

(Varies with amateur band)

5

ALC

Same as ACC 1 pin 8.

6

TRV

Activates [X-VERTER] input/output

Input impedance

: More than 10 k

when “HIGH” voltage is applied.

Input voltage

: 2 to 13.8 V

7

13.8 V

Same as ACC 1 pin 7.

1

2

3

4

5

6

7

Summary of Contents for IC-7700

Page 1: ...6 D Front panel 2 6 D Rear panel 1 2 6 D Rear panel 2 2 7 Linear amplifier connections 2 8 D Connecting the IC PW1 EURO 2 8 D Connecting a non Icom linear amplifier 2 8 Transverter jack information 2...

Page 2: ...o the shaft hole out slightly using sup plied hexagonal wrench 2 mm Fig 2 Be careful that the screw does not extend out more than 1 mm 1 32 in r Attach the main dial as illustrated Fig 3 Be careful to...

Page 3: ...ont panel and side panel to hide the screw holes on both sides When re packing and shipping the transceiver Attach the rack mounting handles using original screws when re packing and shipping the tran...

Page 4: ...tion USB Memory Not supplied by Icom Connect the USB Memory to the USB connector Unmount operation is necessary before removing the USB Memory p 12 25 Make sure to connect the USB Memory correctly NEV...

Page 5: ...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 Ant...

Page 6: ...nects a transverter for V UHF band use RELAY ALC p 2 8 Used for connecting a non Icom linear amplifier External speaker p 15 4 SP 20 option REMOTE RS 232C p 14 2 Used for computer control and transcei...

Page 7: ...OUT Outputs regulated 14 V approx DC for external equipment power supply max 1 A capacity External keypad Connects an external keypad for direct voice memory and memory keyer controls Connects a PC fo...

Page 8: ...f your non Icom linear ampli fier requires control voltage and or current greater than specified Linear amplifier connections D D Connecting the IC PW1 EURO 2 8 2 INSTALLATION AND CONNECTIONS RF OUTPU...

Page 9: ...ion When connecting to ACC 1 When connecting to MIC When using a PC application When using a TNC PC RS 232C TNC or scan converter PTT Audio output AF input GND AFSK output AF input GND PTT SQL input W...

Page 10: ...frequency can be controlled while in split frequency operation The UP DN switch can simulate a key paddle Preset in the keyer set mode p 4 12 wPTT SWITCH Push and hold to transmit release to receive...

Page 11: ...put Input impedance 10 k Connects to a modulator Input level Approx 100 mV rms AF detector output Output impedance 4 7 k 5 AF Fixed regardless of AF position Output level 100 300 mV rms in default set...

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