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

19
RF Unit
Circuit Diagram
EXT DC IN 13.8V
**
:RX, (
**
):TX
0.2V (0V)
430M RX:2.13V
0.66V (0V)
430M RX:2.7V
0V (5.5V)
50M RX:0V
0V (0V)
50M RX:0.45V
2.25V
(1.6V)
50M: 1.99V
(2.07V)
1.55V (1.6V)
SAVE:2.94V
0V (2.9V)
50M: 2.77V
(0.48V)
SHIFT ON:2.86V
SHIFT OFF:0V
0V (0V)
0V (2.9V)
AMRX:1.84V
(AMTX:2.9V)
0V (0V)
AM:2.5V
(AM:2.5V)
0V (2.5V)
(AMTX:0V)
0V (2.9V)
(AMTX:2.38V)
0V (0V)
0V (0V)
0V (0V)
0V (0V)
0V (4.85V)
0V (0.48V)
0V (2.4V)
2.98V
(3.03V)
2.25V (2.3V)
2.93V
(2.98V)
2.26V
(2.81V)
13.4V
(13.3V)
12.8V
(12.7V)
0V (2.95V)
2.12V
SAVE:0V
2.78V (0V)
430M: 1.99V
(2.01V)
76~222M RX:1.98V
76~222M TX:2.05V
6.47V
(6.47V)
0.66V
(0.66V)
2.3V
(2.3V)
0V (0V)
UL:2.9V
2.9V (2.9V)
UL:0V
2.9V
(2.9V)
1.32V
(1.32V)
1.3V
(1.3V)
6.4V
(6.4V)
1.88V
(1.92V)
0V (0V)
0V (0V)
0V (0V)
50M RX:0.35V
50M TX:0.45V
BC SW RX:0.79V
50M RX:1.31V
50M TX:3.9V
76~222M RX:0.6V
76~222M TX:0.2V
76~222M RX:1.37V
76~222M TX:1.08V
1.0V
(2.4V)
0.7V
(0.7V)
0V
(50M:1.12V)
0V
(50M:2.44V)
0V (50M TX:4.51V)
0V
(50M:0.84V)
(144M:0.82V)
(430M:1.29V)
0V
(50M:0.86V)
(144M:0.86V)
(430M:1.32V)
0V
(50M:1.75V)
(144M:2.37V)
(430M:2.52V)
0V
(50M:1.5V)
(144M:2.2V)
(430M:1.7V)
0V
(50M:0.88V)
(144M:0.88V)
(430M:1.32V)
0V
(50M:0.8V)
(144M:0.82V)
(430M:1.29V)
0V (2.28V)
0V
(2.27V)
0V
(5.22V)
0V
(1.24V)
0V
(1.98V)
0V
(3.97V)
0V
(1.86V)
13.5V
(13.3V)
0V
(1.42V)
0V
(50M TX:1.84V)
(144M TX:1.85V)
(430M TX:2.85V)
145M TX:+5.1dBm
430M TX:+6.9dBm
1000pF Coupling Capacitor.
50M TX:+15.7dBm
1000pF Coupling Capacitor.
800M RX:1.87V
800M RX:0.73V
800M RX:1.61V
800M RX:0.8V
430M RX:1.77V
(0V)
430M RX:0.66V
(0V)
430M RX:1.89V
(0V)
430M RX:
0.81V
(0V)
430M RX:1.05V (0V)
430M RX:0.79V (0V)
0.8V (0V)
76~222M RX:1.81V (0V)
SUB430M RX:0.83V (0V)
SUB430M RX:1.57V (0V)
SUB430M RX:
2.14V (0V)
76~222M RX:1.83V (0V)
76~222M RX:
0.73V (0V)
SUB144M RX:2.4V (0V)
50M RX:2.0V (0V)
50M RX:0.67V (0V)
50M RX:1.13V (0V)
0.7V (0V)
50M RX:0.8V
SUB50M RX:1.27V (0V)
BC SW RX:0.59V
BC SW RX:1.5V
BC SW RX:0.78V
BC SW RX:0.75V
0V (0V)
SW RX:2.95V
0V~6.43V (0V)
13.8V
(13.6V)
0V (0V)
AM RX:2.61V
AM RX:+12dBµ
10dB SN
0.1µF Coupling Capacitor.
MAIN NFM RX:+4.3dBµ
SUB NFM RX:+3.5dBµ
52.000MHz
1000pF Coupling Capacitor.
MAIN NFM RX:+11.5dBµ
SUB NFM RX:+7.1dBµ
145.000MHz
1000pF Coupling Capacitor.
MAIN NFM RX:+2.0dBµ
435.000MHz
1000pF Coupling Capacitor.
SUB NFM RX:+5.7dBµ
435.000MHz
1000pF Coupling Capacitor.
MAIN NFM RX:+7.3dBµ
435.000MHz
1000pF Coupling Capacitor.
MAIN NFM RX:+14.7dBµ
435.000MHz, @12dB SINAD
1000pF Coupling Capacitor.