Terminal Function - Kenwood TK-8180 Series Service Manual

Switch unit (X41-3682-70) : TK-8189 model only
Pin No. Name
CN1 (to Display unit CN903)
1 GND Ground
2 SB Power output of switched power supply
3 BLC Backlight control input
4 12KEY [12] [#] key output
5 12KEY [11] [0] key output
6 12KEY [10] [ ] key output
*
7 12KEY [9] [9] key output
8 12KEY [8] [8] key output
9 12KEY [7] [7] key output
10 12KEY [6] [6] key output
11 12KEY [5] [5] key output
12 12KEY [4] [4] key output
13 12KEY [3] [3] key output
14 12KEY [2] [2] key output
15 12KEY [1] [1] key output
Display unit (X54-348X-XX)
Pin No. Name
CN901 (to internal speaker) : TK-8180 model only
1 GND Ground
2 SPO Speaker output
CN902 (to TX-RX unit B/3 CN429)
1 SPO Speaker input
2 SPO Speaker input
3 SPO Speaker input
4 SPO Speaker input
5 SPO Speaker input
6 SPO Speaker input
7 GND Ground
8 8C 8V input
9 SB Power input of switched power supply
10 SB Power input of switched power supply
11 NC No connection
12 PSW Detection signal output of power switch
13 GND Ground
14 GND Ground
15 MIC MIC signal output
16 ME MIC ground
17 GND Ground
18 PSENS Detection signal output of display unit
19 RST2 Reset signal input
20 GND Ground
21 GND Ground

TERMINAL FUNCTION

Description
Description
TK-8180/8189
Pin No. Name
22 GND Ground
23 NC No connection
24 SHIFT/MODEL Control signal input of beat-shift function
25 NC No connection
26 5C 5V output
27 TXD Serial data signal input
28 RXD Serial data signal output
29 GND Ground
30 GND Ground
CN903 (to Switch unit CN1) : TK-8189 model only
1 12KEY [1] [1] key input
2 12KEY [2] [2] key input
3 12KEY [3] [3] key input
4 12KEY [4] [4] key input
5 12KEY [5] [5] key input
6 12KEY [6] [6] key input
7 12KEY [7] [7] key input
8 12KEY [8] [8] key input
9 12KEY [9] [9] key input
10 12KEY [10] [ ] key input
*
11 12KEY [11] [0] key input
12 12KEY [12] [#] key input
13 BLC Backlight control output
14 SB Power input of switched power supply
15 GND Ground
J901 (MIC jack)
1 BLC MIC backlight control
2 SB DC 13.2V± 15%, 200mA typ.
3 E Ground
4 PTT/TXD PTT : PTT input, TXD : Serial data output.
5 ME MIC ground
6 MIC MIC signal input
7 HOOK/RXD HOOK : Hook detection, RXD : Serial data input.
8 DM MIC data detection
TX-RX unit (X57-6992-71) (A/3)
Pin No. Name
CN701 (to TX-RX unit B/3 CN427)
1 AUXIO6 AUX input/output 6
2 AUXIO7 AUX input/output 7
3 AUXIO1 AUX input/output 1
4 AUXIO2 AUX input/output 2
5 RXD2 Serial data output 2
6 AUXIO3 AUX input/output 3
7 TXD2 Serial data input 2
Description
Description
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