@ ACC 2 jack

Terminal numbers and their applications are as follows:

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V\:.)\:J,--, View from the

rear panel.

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13-pin DIN plug

Internal wiring

~=\~~GND

3-1-3. Top cover

CW:tIii1

VOX OFF ON

!Pin No. Pin Name

1NC

2NC

3Data output

4GND

5NC

6NC

7NC

8GND

9MIC mute

Application

No connection

No connection

Output level is fixed regardless of the AF control setting.

Output voltage:

300 mV or more at maximum re- ceiving input with 4.7 kO load.

Grounding (The shielded wire of the audio output terminal is connected

here.)

No connection

No connection

No connection

Grounding

Signal input from the MIC jack is mut- ed. Grounding mutes signal.

VOX/BREAK IN switch

VOX (Voice Operated Switch) operation is possible in LSB, USB, FM or AFSK mode operations. To activate the VOX circuitry place the VOX switch ON.

This control is also used to select either Full or Semi

automatic

break-in.

 

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PIN

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10NC

11 Data input

12GND

13Standby

No connection

Input terminal for data communica- tion. In SSg. MIC gain can be con- trolled by the MIC control.

Input voltage:

500 mV or less

(SSB: Voltage starts deflecting ALC FM: Voltage providing :I: 3.0 kHz modulation ratio.)

Grounding (The shielded wire of the audio input is connected here.)

Standby terminal

Grounding transmits.

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Note:

When the control relay is used refer to section 5-8-10.

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Page 10
Image 10
Kenwood TS-440S manual @ ACC 2 jack, ~=\~~Gnd, Pin