Anritsu 682XXB - Manual (Page 183)

682XXB/683XXB MM 5-17
TROUBLESHOOTING
TROUBLESHOOTING TABLES
Step 4. 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 GPIB to the 682XXB/
w683XXB IEEE-488 GPIB .
c. Connect the RF Detector to the 562 Channel A Input.
Step 5. Set up the 562 Scalar Network Analyzer as follows:
a. Press SYSTEM MENU display.
b. From System Menu display, select RESET.
c. Press CHANNEL 2 DISPLAY: OFF.
d. Press CHANNEL 1 DISPLAY: ON.
e. Press CHANNEL 1 Menu key.
f. From the Channel 1 Menu display, select POWER.
Step 6. Using the scalar network analyzer, measure the RF output
at J4 of the switched filter assembly. The amplitude of the
RF signal should be >+18 dBm throughout the full sweep.
G If the amplitude of the RF signal is correct, replace the
SQM.
G If there is no RF signal or if the amplitude of the RF sig-
nal is low, replace the switched filter assembly.
Table 5-4. Malfunctions Not Displaying an Error Message (6 of 6)