682XXB/683XXB MM 5-43
Step 7. Connect a 562 Scalar Network Analyzer to the 682XXB/
683XXB as follows:
a. Connect the 682XXB/683XXB AUX I/O to the 562 AUX
I/O.
b. Connect the 562 DEDICATED GPIBto the 682XXB/
683XXB IEEE-488 GPIB.
c. Connect the RF Detector to the 562 Channel A Input.
Step 8. Set up the 562 Scalar Network Analyzer as follows:
a. Press SYSTEM MENU key.
b. From System Menu display,select RESET.
c. Press CHANNEL 2 DISPLAY:OFF
d. Press CHANNEL1 DISPLAY: ON
e. Press CHANNEL 1 MENU key.
f. From the Channel 1 Menu display, select POWER.
Step 9. Using the scalar network analyzer,measure the RF output
at J3 of the switched filter assembly.The amplitude of the
RF signal should be >17 dBm throughout the full sweep.
If the amplitude of the RF signal is correct, replace the
down converter assembly.
If there is no RF signal or if the amplitude of the RF sig-
nal is low,replace the switched filter assembly.
Table5-20. Error Messages 128, 129, 130, 131, 132, 133, 134, and 135 (3 of 8)
TROUBLESHOOTING
TROUBLESHOOTING TABLES