Anritsu 682XXB - 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