Nautel VX150, Manual

Page: 74 / 105

VERSION 0.1 2020-12-01 SD-4
Figure SD-4: VX1.5 Transmitter - Ac and RF Power Stages
2 235-8200-SCH02.SchDoc
J4
GND
GND
GND
GND
IPA V
IPA V
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
IPA V
IPA V
J4
RF DRIVE
PA 1 BIAS
PA 2 BIAS
GND
IPA VOLTS SAMPLE
IPA BIAS
PART OF
SYSTEM
INTERFACE
A3
PWB
IPA
A6
PWB
16
13
14
11
8
9
6
3
4
1
15
12
10
7
5
2
J7
16
13
14
11
8
9
6
3
4
1
15
12
10
7
5
2
J3
J1
J2
J1
8
9
6
3
4
1
10
7
5
2
J9
J2
J1
FAN VOLTS (-)
PWM
TACH
FAN VOLTS (+)
4
1
3
2
B2
B1
FAN VOLTS (-)
PWM
TACH
FAN VOLTS (+)
4
1
3
2
SPLITTER
A12
PWB
8
9
6
3
4
1
10
7
5
2
RF OUT
E1
REFLD PWR SAMPLE
TO SHEET 1
RF + BIAS 1
FWD PWR SAMPLE
E2
POWER AMP
A7
PWB 1
J3
J2 J1
E1
POWER AMP
A8
PWB 2
J1
RF + BIAS 2
PA LOW PASS
A9
PWB
E1
FILTER
A
PA LOW PASS
A10
PWB
FILTER
A
COMBINER
A13
PWB
A
B
C
DIRECTIONAL
A11
PWB
COUPLER
J3
J2
A
RF OUT
J1
RF MONITOR
J1
V: A
TB1
FROM SHEET 1
J6
J5
PART OF
SYSTEM
INTERFACE
A3
PWB
E2 E1
J1
+12V
+12V
GND
I2C SCL
RS485(-)
I2C SDA
GND
UNIT ID B5
MARGIN
SHELF ADDRESS D1
C4
C1
RS485(-)
LOGIC GND A3
UNIT ADDRESS A1
GND P3
VAC L1 P1
# MODULE PRESENT -
# PWR FAIL WARNING -
VOUT (-)
VOUT (+)
RS485(+)
PAV 2 (+)
PAV 1 (+)
# PS ON - D2
C5
RS485(+) D6
B6
VAC L2/N P2
VOUT (-)
VOUT (+)
# OUTPUT ENABLE -
PROTOCOL
A4
A5
P4
P5
P7
P6
1
2
3
FROM AC
POWER SOURCE
185-265VAC, 47-63 Hz
LINE
GND
LINE/NEUTRAL
J3
POWER SUPPLY
INTERFACE
A4
PWB
J1
TB1
LINE
GND
LINE/NEUTRAL
POWER SUPPLY
U2
+12V
GND
POWER
U3
+12V
J2 J10
PAV (-)
TB2
+12V
GND
1
2
2
3
1
PART OF
E1
E2
E3
E4
SYSTEM
INTERFACE
A2
PWB
PART OF
PAV (-)
SUPPLY
POWER SUPPLY
INTERFACE
A4
PWB
PART OF
B3 RACK ID
1
2
3
4
FAN 1
FAN 2
R1
R2
L1
L2
RF OUT
RF OUT
Q1
Q1
HEATSINK (-)
HEATSINK (+)
RT1
RT2
INLET AIR (-)
INLET AIR (+)
8
6
4
3
1
7
5
2
9
10
8
6
4
3
1
7
5
2
9
10
W7
W2
W8
W13
W14
W9
W1
W10
W12
W11
W5
W2
W1
W8
W9
W5
W11
W13
W14
W10