Kenwood TK-7185 Service Manual Addendum page 27

Pin No. Name
MIC signal output (AC coupled) before
21 TXO pre-emphasis.
Zo>2.2kΩ, 130±50mVp-p typ.
Audio signal output (DC coupled) after de-
22 RXEO
emphasis. Zo>30kΩ, 1±0.3Vp-p typ.
Audio signal input (DC coupled) after de-
23 RXEI
emphasis. Zin>15kΩ, 1±0.3Vp-p typ.
MIC signal input (AC coupled) before pre-
24 TXI
emphasis. Zin>22kΩ, 500±50mVp-p typ.
Option board I/F 6.
25 OPT6
Output : L≤0.45V, H≥4.7V/25kΩ load
Power input after power switch.
26 8C
8.0V typ, 100mA max.
CN427 (to TX-RX unit A/3 CN701)
1 NC No connection
2 SB Power output after power switch
3 SB Power output after power switch
4 SB Power output after power switch
5 SB Power output after power switch
6 SB Power output after power switch
7 SB Power output after power switch
8 AFO RX fi ltered audio output
9 DI Data signal input
10 5C 5V
11 GND Ground
12 DEO Detected signal output
13 MI2 External MIC input
14 ME MIC ground
15 GND Ground
16 RXD1 Serial data input 1
17 AUXO2 AUX output 2
18 TXD1 Serial data output 1
19 AUXO1 AUX output 1
20 AUXIO9 AUX input/output 9
21 AUXIO5 AUX input/output 5
22 AUXIO8 AUX input/output 8
23 AUXIO4 AUX input/output 4
24 TXD2 Serial data output 2
25 AUXIO3 AUX input/output 3
26 RXD2 Serial data input 2
27 AUXIO2 AUX input/output 2
28 AUXIO1 AUX input/output 1
29 AUXIO7 AUX input/output 7
30 AUXIO6 AUX input/output 6
TERMINAL FUNCTION
Description Pin No. Name
CN428
1 SB Power output of switched power supply
2 SPI Speaker output
3 SPO Speaker input
4 PA Control signal output of PA function
5 HOR Control signal output of Horn alert function
6 GND Ground
CN429 (to Display unit CN902)
1 (DM) Reserve
2 GND Ground
3 RXD Serial data signal input
4 TXD Serial data signal output
5 NC No connection
6 5C 5V output
7 SHIFT/MODEL Control signal output of beat-shift function
8 GND Ground
9 (LCDDO) Reserve
10 (LCDDI) Reserve
11 (LCDCLK) Reserve
12 RST2 Reset signal output
13 PSENS Detection signal input of display unit
14 GND Ground
15 ME MIC ground
16 MIC MIC signal input
17 GND Ground
18 GND Ground
19 PSW Detection signal input of power switch
20 NC No connection
21 SB Power output of switched power supply
22 SB Power output of switched power supply
23 8C 8V output
24 GND Ground
25 SPO Speaker output
26 SPO Speaker output
27 SPO Speaker output
28 SPO Speaker output
29 SPO Speaker output
30 SPO Speaker output
CN804
1 IGN Ignition sense input
2 GND Ground
TK-7185
Description
27