Nautel NV3.5, Troubleshooting Manual

Page: 184 / 228

Issue 3.2 2014-12-10 SD-8
Figure SD-8: NV5/NV3.5 Transmitter - RF Power Stage (Sheet 2 of 3)
RF
OUT
RF
OUT
5kW
1-2
A16
R3
100
1W
A1
100
1W
R1
*
A2
*
A3
100
1W
R1
*
681
R2
R3
100
1W
A4
100
1W
R1
*
R3
100
1W
*
**
E1
A21
A18
J1 J2 RF IN 2
J1 J1 RF IN 1
A1
PROBE ASSY
A13
R3
100
1W
100
1W
R1
681
R2
R3
100
1W
A5
681
R2
100
1W
R1
A3J1 W22P1
TO RF
W22J1
TO RF
MODULE 2
PART OF
MODULE 1
PART OF
RF POWER
RF POWER
**
**
** **
FILTER ASSY
10kW LOW PASS
**
** **
OUTPUT POWER
PROBE PWB
REFLD PWR
RF SAMPLE PWB B
A1J1 W20P1
A5J1 W6P1
A4J1 W5P1
J1
A2J1 W21P1
S2060107 VC
CONNECTOR ARE BLIND-MATE CONNECTIONS.
NOTES:
SHEET 3
FWD PWR SAMPLE
SHEET 1
MONITOR STAGE
REFLD PWR SAMPLE
RF MONITOR CUSTOMER
RF MONITOR
EXCITER RF SAMPLE (A)
DRIVE STAGE
681
R2
TO ANTENNA
**
**
10kW COMBINER/FILTER ASSY
**
PROBE PWB
FWD PWR
RF MONITOR PWB
POWER STAGE 5kW REJ LD PWR (1/2)
TO CONTROL/
EXCITER RF SAMPLE (B)
SHEET 1
RF OUTPUT
SYSTEM
J5 W34P1
** DENOTES INDUCTORS AND CAPACITORS IN LOW PASS FILTER ARE SHOWN FOR REFERENCE ONLY.
RF POWER MODULE OUTPUT CONNECTOR J1 AND SPECIFIC 5kW COMBINER/FILTER ASSEMBLY
* DENOTES A MICRO-STRIP TRANSMISSION LINE OF SPECIFIC LENGTH AND CHARACTERISTIC IMPEDANCE.
RF SAMPLE PWB A