Anritsu 682XXB - Manual (Page 181)

682XXB/683XXB MM 5-15
TROUBLESHOOTING
TROUBLESHOOTING TABLES
G If the signals are present and correct, go to step 8.
G If the signals are not present or are incorrect, replace the
A6 PCB.
Step 8. Disconnect the cable, W123, from J7 of the Pulsed Switched
Filter assembly.
Step 9. Using the oscilloscope, verify the presence of a pulse train
with an output level of +2 volts to –2 volts, a pulse period of
1 ms, and a pulse width of 200
ms at the end of the cable,
W123.
G If present, replace the Pulse Switched Filter assembly.
G If not present, replace the cable W123.
Table 5-4. Malfunctions Not Displaying an Error Message (4 of 6)