Troubleshooting, Troubleshooting tables – Anritsu 682XXB User Manual
Page 200
5-34
682XXB/683XXB MM
Step 8.
Run self-test.
G
If error 113 or 115 is not displayed, the problem is cleared.
G
If either error 113 or 115 is displayed, contact your local
ANRITSU
service center for assistance.
Table 5-13.
Error Messages 113 and 115 (2 of 2)
TROUBLESHOOTING
TROUBLESHOOTING
TABLES
Down Converter
Error 114 Down Converter LO not Locked
Description: The local oscillator in the down converter assembly is
not phase-locked.
Step 1.
Disconnect cable W112 at A3J2.
Step 2.
Using a spectrum analyzer, verify the presence of a +5 dBm
±6 dB, 500 MHz signal at A3J2.
G
If present, go to step 3.
G
If not present, replace the A3 PCB.
Step 3.
Reconnect cable W112 to A3J1, then disconnect cable W112
at J2 of the down converter assembly.
Step 4.
Using a spectrum analyzer, verify the presence of a +5 dBm
±6 dB, 500 MHz signal at the end of cable W112.
G
If present, replace the down converter assembly.
G
If not present, replace cable W112.
Table 5-14.
Error Message 114