Kenwood TK-7180H Service Manual page 69

TK-7180H/7182H
Pin No. Name
21 AUXI/O4 AUX input/output 4. Same as AUXI/O9
22 AUXI/O3 AUX input/output 3. Same as AUXI/O9
23 AUXI/O2 AUX input/output 2. Same as AUXI/O9
24 AUXI/O1 AUX input/output 1. Same as AUXI/O9
25 ME MIC ground
TX-RX unit (X57-6980-XX) (B/3)
Pin No. Name
CN301 (to TX-RX unit C/3)
1 REF Reference signal output to the PLL IC
2 Fin Complementary signal output to the PLL IC
3 CPGND Ground
4 5C 5V output
5 GND Ground
6 CP Signal input from charge pump block in the PLL IC
CN302 (to TX-RX unit C/3)
1 UL Control signal input form the PLL IC
2 PLE Control signal output to the PLL IC
3 DT Control signal output to the PLL IC
4 PCK Control signal output to the PLL IC
5 GND Ground
6 DGND Ground
CN403 (to VGS-1) : TK-7180H
1 OPT1 VGS busy signal input. Option board I/F 1.
Output : L≤0.45V, H≥4.7V/25kΩ load
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
2 OPT3 VGS playback signal input. Option board I/F 3.
Output : L≤0.45V, H≥4.7V/25kΩ load
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
3 RXD1 Serial data input.
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
4 TXD1 Serial data output / PTT singanl output (SC20-460).
Output : L≤0.45V, H≥4.7V/25kΩ load
5 CLK Serial clock output
6 OPT4 VGS enable output. Option board I/F 4.
Output : L≤0.45V, H≥4.7V/25kΩ load
7 USEL UART speed select output. L : 19200bps fixed
8 OPT5 VGS reset signal output. Option board I/F 5.
Output : L≤0.45V, H≥4.7V/25kΩ load
68
TERMINAL FUNCTION
Description
Description
Pin No. Name
9 DGND Ground
10 AGND Ground
11 AI VGS audio input. Zin≥10kΩ, 1Vp-p max,
Input Voltage : 0V~5.0V
12 AO VGS audio output. Zo≤10kΩ
13 AGND Ground
14 5E 5V power supply output. 78mA max
15 STON Side tone input. 1kHz, 5Vp-p
16 DTI Data signal input.
Zin≥22kΩ, 600± 200mVp-p
17 TCTL Speaker mute signal input.
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
18 NC No connection
19 AUDIH MIC mute signal input
20 OPT2 Option board I/F 2.
Output : L≤0.45V, H≥4.7V/25kΩ load
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
21 TXO MIC signal output (AC coupled) before pre-
emphasis. Zo>2.2kΩ, 130± 50mVp-p typ.
22 RXEO Audio signal output (DC coupled) after de-
emphasis. Zo>30kΩ, 1± 0.3Vp-p typ.
23 RXEI Audio signal input (DC coupled) after de-
emphasis. Zin>15kΩ, 1± 0.3Vp-p typ.
24 TXI MIC signal input (AC coupled) before pre-
emphasis. Zin>22kΩ, 500± 50mVp-p typ.
25 OPT6 Option board I/F 6.
Output : L≤0.45V, H≥4.7V/25kΩ load
26 8C Power input after power switch.
8.0V typ, 100mA max
CN403 (to Option board) : TK-7182H
1 OPT1 Option board I/F 1.
Output : L≤0.45V, H≥4.7V/25kΩ load
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
2 OPT3 Option board I/F 3.
Output : L≤0.45V, H≥4.7V/25kΩ load
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
3 RXD1 Serial data input.
Input : L≤1.0V, H≥4.0V, Input voltage : 0V~5.0V
4 TXD1 Serial data output / PTT output (Scrambler board)
Output : L≤0.45V, H≥4.7V/25kΩ load
Description