Yaesu VX-7R - TECHNICAL - AF Unit Circuit Diagram

33
AF Unit
Circuit Diagram
BUSY:4.3V
0.4V (0.4V)
0V (0V)
BUSY:0.55V
0.4V (0.4V)
BUSY:1.33V
0V (0V)
BUSY:9.2V
0V (0V)
12.8V (12.5V)
BUSY:2.48V
0V (0V)
13.3V (13.1V)
BUSY:3.0V
0V (0V)
BUSY:3.0V
0V (0V)
BUSY:0V
2.73V (2.76V)
2.7V (2.7V)
1.43V (1.43V)
1.6V (1.6V)
1.17V (1.17V)
0V (0V)
0V (0V)
0V (0V)
2.94V
(2.94V)
BUSY:0V
3.0V (3.0V)
0.63V
(0.63V)
0V
(0V)
0V
(0V)
0V (0V)
BUSY:0V
3.0V (3.0v)
0V (0V)
3.0V (3.0V)
SUB BUSY:0V
3.0V (3.0V)
SUB BUSY:0V
3.0V (3.0V)
0V
(0V)
DUAL:2.0V
(0V)
DUAL:2.84V
(0V)
DUAL:1.0V
(0V)
DUAL:2.48V (0V)
DUAL:1.25V
(0V)
DUAL RX:0.65V
(0V)
DUAL RX:1.05V (0V)
DUAL:0.6V (0V)
DUAL:1.37V (0V)
DUAL RX:2.8V (0V)
SUB 50M:0.82V
SUB 144M:0.67V
SUB 430M:0.83V
(0V)
DUAL:0.94V
(0V)
DUAL:0.97V
(0V)
DUAL RX:1.63V
(0V)
DUAL RX:2.77V
(0V)
DUAL RX:0.69V
(0V)
SUB 430M RX:0.2V
2.9V (3.0V)
SUB 144M RX:0.2V
2.9V (3.0V)
SUB 50M RX:0.2V
2.9V (3.0V)
DUAL RX:0.69V
(0V)
3.0V (3.0V)
DUAL RX:2.33V
(0V)
SUB 430M RX:2.25V
2.95V (3.0V)
SUB 144M RX:2.25V
2.95V (3.0V)
SUB 50M RX:2.25V
2.95V (3.0V)
SUB 50,144M RX:1.04V
SUB 430M RX:1.18V
(0V)
SUB 50M RX:2.83V
0V (0V)
DUAL RX:2.25V
2.45V (2.5V)
SUB 430M RX:2.46V
0V (0V)
DUAL:0.75V
(0V)
AM RX:0.9V
1.24V (0V)
SUB 144M RX:2.84V
0V (0V)
SUB 430M:1.75V
(0V)
SUB 430M RX:0V
DUAL RX:1.39V
(0V)
SUB 430M RX:0V
DUAL RX:1.65V
(0V)
SUB 430M:0.3V
(0V)
6.47V (6.47V)
DUAL:2.84V
(0V)
DUAL:1.7V
(0V)
0V (0V)
DUAL:1.25V
(0V)
0V (0V)
DUAL:0.52V
(0V)
DUAL:2.64V
(0V)
DUAL RX:2.8V
0V (0V)
DUAL:1.83V
(0V)
SUB 430M:1.06V
(0V)
NFM:0.65V
(0V)
NFM:0.73V
(0V)
NFM:2.55V
(0V)
2.56V
(0V)
2.6V
(AM TX:0.5V)
(0V)
AM:0.42V
(AM:0.42V)
2.3V (0V)
2.2V (0V)
WFM RX:2.94V
WFM RX:2.75V
(0V)
WFM RX:2.95V
(0V)
2.2V (0V)
WFM RX:2.9V
2.85V
(0V)
2.4V (0V)
WFM RX:2.2V
2.4V (0V)
WFM RX:0V
2.8V
(0V)
2.84V (0V)
2.8V (0V)
0.3V (0V)
WFM RX:0.8V
0.94V
(0V)
1.6V
(0V)
2.8V
(0V)
1.6V (0V)
2.5V
(0V)
2.02V (0V)
2.5V (0V)
0.66V
(0V)
0.77V (0.45V)
0V (0V)
0V (0V)
AM TX RX:2.5V
0V (0V)
1.29V
(0V)
1.39V
(0V)
AM RX:0.927V
(0V)
AM RX:0.635V
(0V)
AM RX:0.03V
(0V)
AM RX:0.72V
(0V)
AM RX:0.124V
(0V)
1.12V
(0V)
0.604V
(0V)
AM RX:1.29V
(0V)
NFM AM RX:2.8V
WFM RX:0V
(0V)
0V (0V)
WFM RX:0.47V
(0V)
WFM RX:2.58V
(0V)
WFM RX:0.68V
(0V)
WFM RX:2.68V
(0V)
WFM RX:0.73V
(0V)
WFM RX:1.6V
(0V)
0V (0V)
0.5V
(0.5V)
2.8V
(2.8V)
WFM RX:0.63V
(0V)
MAIN NFM RX:+4.6dBµ
@47.25MHz
1000pF Coupling Capacitor.
MAIN WFM RX:+7.4dBµ
@45.8MHz
1000pF Coupling Capacitor.
MAIN RX:+10.5dBµ
@47.25MHz
0.01µF Coupling Capacitor.
SUB RX:+6.3dBµ
@46.35MHz
0.01µF Coupling Capacitor.
SUB RX:-6.2dBµ
@46.35MHz
1000pF Coupling Capacitor.
SUB RX:-2.0dBµ
@46.35MHz
1000pF Coupling Capacitor.
EXT DC IN 13.8V
**
:RX, (
**
):TX