Terminal Function - Kenwood TK-3170 Service Manual

■ CN60
Pin No. Pin Name I/O
1 GND - GND
2 SSB O Switched B output
DC (Battery terminal)± 0.5V, 150mA max
3 AUX1 I/O Auxiliary 1
Input: L ≤ 0.45V, H ≥ 4.7V/25kΩ load
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
4 AUX2 O Auxiliary 2
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
5 RXD2 I RXD
Input: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
6 AUX3 I/O Auxiliary 3
Input: Active "L", L ≤ 1.0V, H ≥ 4.0V
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
7 AUX4 O Auxiliary 4
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
8 AUX5 O Auxiliary 5
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
9 TXD2 O TXD
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load
10 TA1 I Transmit audio 1
Input: Zin > 22kΩ, 350± 50mVp-p
(Standard modulation)
11 5C - 5V power supply (50mA max)
12 MIC O O TX input
Input: ZL ≥ 2.2kΩ, 130± 50mVp-p
(Standard modulation)
13 TA2 I Transmit audio 2
Input: Zin > 22kΩ, 350± 50mVp-p
(Standard modulation)
14 DEO O Discriminator audio, 1Vp-p
15 ALT2 I Alert tone audio 2, 0.5Vp-p
16 ALT1 I Alert tone audio 1, 0.5Vp-p
17 MIC I I MIC signal input (AC coupled)
Before pre-emphasis
Zin ≥ 22kΩ, 130± 50mVp-p
(Standard modulation)
18 RA O O Audio signal output (DC coupled)
After de-emphasis
ZL ≥ 30kΩ, 1± 0.3Vp-p
(Standard modulation)
19 RA I I Audio signal input (DC coupled)
After de-emphasis
Zin ≥ 15kΩ, 1± 0.3Vp-p
(Standard modulation)
20 AUX6 I/O Auxiliary 6
Input: L ≤ 0.8V, H ≥ 4.2V
Output: L ≤ 0.4V, H ≥ 4.2V/100kΩ load

TERMINAL FUNCTION

Function
TK-3170/3173
■ Solder Point Connection
Designation Function
MIC_I MIC input Input sensitivity / impedance (1kHz std. dev.)
500mVrms± 100mV, @22kΩ load
MIC_O MIC output Output voltage / impedance
(1kHz, 15mVrms MIC input)
60mVrms± 20mV, @2.2kΩ load
RA_I Receiver Input sensitivity / impedance
AF input (1kHz rated AF power / Vol. max)
150mV± 50mV, @22kΩ load
RA_O Receiver Output voltage / impedance (1kHz std. mod.)
AF output 200mV± 50mV, @2.2kΩ load
SP_M Speaker Load >100kΩ
mute (Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
RXD RXD Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
TXD TXD Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
RSSI RSSI output Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
LSDFO LSDIN Load >100kΩ
output (Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
MDSW Mandown Load >100kΩ
SW input (Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
5C DC 5V Output voltage / 10mA load
5.0V± 0.5V / 50mA max
DEO Discriminator Output voltage / impedance (1kHz std. mod.)
signal output 400mVrms± 100mV, @2.2kΩ load
ALT Sidetone Input sensitivity / impedance
input (1kHz rated AF power / Vol. max)
140mVrms± 50mV, @22kΩ load
DATAO Transmit Input sensitivity / impedance (1kHz std. dev.)
AF input 310Vrms± 50mV, @22kΩ load
A1 AUX1 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
A2 AUX2 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
A3 AUX3 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
A4 AUX4 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
A5 AUX5 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
A6 AUX6 Load >100kΩ
(Low) Vss~0.4V, (High) Vdd–0.8V~Vdd
SB Switched B Output voltage / 7mA load
DC (Battery terminal)
± 0.5V / 150mA max
G GND Vss
TA1 Transmit Input sensitivity / impedance (1kHz std. dev.)
AF input 310Vrms± 50mV, @22kΩ load
Condiition / Value
51