15-Pin Connector - Kenwood TKR-751 Modification Information

1 TERMINAL FUNCTION
1.2

15-pin Connector

The 15-pin connector is located on the rear panel of the
TKR-750/850/751/851 and you can connect external
devices, such as an external speaker.
No. Pin name
1 SB
2 SB
3 NC
4 GND
5 GND
6 SPG
7 RD
8 RSSI
9 SPI
10 Auxiliary Output 1
11 Auxiliary Output 2
12 SPO
13 Auxiliary Output 3
14 Auxiliary Output 4
15 Auxiliary Output 5
!
Connecting the external speaker
Ext.
SP
Figure 1-3 Connecting the external speaker
Disconnect the Jumper Lead and insert the external
speaker's cable to the 12-pin and 6-pin of the 15-pin
connector. It needs to reconnect the Jumper Lead
when using the internal speaker.
2
Input/Output
Output Output the voltage between 10.8 to 15.6 V: 1 A max.
Output Output the voltage between 10.8 to 15.6 V: 1 A max.
--- No connection
--- Ground
--- Ground
--- Speaker ground
Output Received Data output/ 1kohm Road, 10uF AC coupling, 80mVrms@1kHz 60% Dev.
Output RSSI output; 0.2 to 2.5V
Input Internal Speaker input (short with SPO)
Output Open Collector Output; 16V /150 mA max.
Output Open Collector Output; 16V /150 mA max.
Output External Speaker output; 4 W @less than 5% distortion/ 4ohm Road
Output CMOS Level Output/ H=more than 4V/ L=less than 1V/ 0.2mAmax/ 5V pull-up
Output CMOS Level Output/ H=more than 4V/ L=less than 1V/ 0.2mAmax/ 5V pull-up
Output CMOS Level Output/ H=more than 4V/ L=less than 1V/ 0.2mAmax/ 5V pull-up
15 14 13
12 11 10
9 8 7
6 5 4
3 2 1
Modification Information (MOD)
15 14
11
12
9 8
6 5
3 2
Figure 1-2 15-pin connector
Table 1-2 Assigning signals to 15-pin connector
Description
13
10
7
4
1
Version: 1.02 USA