Nautel NV3.5LT, Troubleshooting Manual

Page: 265 / 324

VERSION 3.3 2016-03-10 SD-3
Figure SD-3: NV5LT/NV3.5LT Transmitter - RF Drive Stage
P3
P3
A4
PART OF
PART OF
P4
A1J2
N/A
A1J3
A4
A1J3
A5
A7
N/A
NOTE:
A7
S2190209 V1
N/A
N/A
(DC INPUT)
A2J6
2
(DC INPUT)
2
A2J3A 2
6
W26P1
(RF OUT)
W26P2
6
3
W4P2
4
A1J5
(RF OUT)
(XMTR LINK)
A1J2
A2J1
(DC INPUT)
5
(XMTR LINK)
4
EXCITER B
3
PART OF
A2J2 W13P1
A2J1 W12P1
SPLITTER/
8
7
W4P2
2
MONITOR STAGE
FROM CONTROL/
0
RF DRIVE (2)
-90
RF DRIVE (1)
RF DRIVE SPLITTER TEMP -
RF DRIVE POWER SAMPLE
RF DRIVE (A)
RF DRIVE (B)
EXCITER RELAY +15V SUPPLY
# EXCITER RELAY CONTROL -
TO RF
MONITOR STAGE
ASSY
RF DRIVE
3
A1J3
4
W4P2 W4P2
GND
N/C W9P2
1
A2J1
1
W11P1 J2
1
W11P1 J2
W24P2
W11P2 A1J1
5
8
6
ASSY
A1J3
RF DRIVE
1 GND
POWER STAGE
TO CONTROL/
6
5
SPLITTER/
CHANGEOVER
0
-90
GND
(RF OUT)
(EXCITER A)
POWER STAGE LVPS RTN (CONTROLLER)
FROM RF
XMTR RF SAMPLE (B)
MONITOR STAGE
EXCITER B RX -
EXCITER B RX +
FROM CONTROL/
FROM AC/DC
POWER STAGE LVPS RTN (EXCITER B)
POWER STAGE LVPS RTN (CONTROLLER)
(EXCITER A)
CONTROLLER ASSY
FROM RF
MONITOR STAGE
# EXCITER RELAY CONTROL -
9
ANALOG AES/EBU OUT (-) 2
ANALOG AES/EBU OUT (SHIELD)
J2 W27P1
2
2
W24P2
RF DRIVE SPLITTER TEMP +
RF DRIVE (2)
POWER STAGE
RF DRIVE (1)
W27P2 A1J2
RF DRIVE SPLITTER TEMP + 7
2 RF DRIVE POWER SAMPLE
TO CONTROL/
EXCITER B STREAMING DATA TX -
EXCITER B STREAMING DATA TX +
EXCITER B TX +
CONNECTIONS. SEE EXCITER SECTION OF MANUAL FOR MORE DETAILS ON CUSTOMER CONNECTIONS.
2) EXCITER INPUTS/OUTPUTS SHOWN FOR DUAL EXCITER SYSTEMS ARE LIMITED TO TRANSMITTER SPECIFIC
SEE CONTROLLER SECTION OF MANUAL FOR MORE DETAILS ON CUSTOMER CONNECTIONS.
1) CONTROLLER INPUTS/OUTPUTS SHOWN ARE LIMITED TO TRANSMITTER SPECIFIC CONNECTIONS.
CONTROLLER ASSY
FROM AC/DC
POWER STAGE
LVPS (CONTROLLER)
# EXCITER B MUTE -
LVPS (EXCITER B)
FROM AC/DC
LVPS (CONTROLLER)
POWER STAGE
FROM CONTROL/
EXCITER RELAY +15V SUPPLY
ANALOG AES/EBU OUT (+) 1
3
A1J1 W9P2
1
1
RF DRIVE (A)
CHANGEOVER
TO RF
W11P2 A1J1 A2J2 W13P1
8
1
RF DRIVE SPLITTER TEMP -
EXCITER B TX -
MONITOR STAGE
DUAL EXCITER SYSTEM
A2J1 W12P1
SINGLE EXCITER SYSTEM