Anritsu 682XXB - Manual (Page 186)

5-20 682XXB/683XXB MM
TROUBLESHOOTING
TROUBLESHOOTING TABLES
Step 2. Perform the following procedure to isolate malfunctions
when the voltages from several regulated supplies are
incorrect.
a. Place the LINE switch to STANDBY .
b. Replace the A15 PCB assembly.
c. Place the LINE switch to OPERATE and measure the
regulated voltages per Table 5-7.
G If the voltages are correct, the problem is cleared.
G If the voltages are incorrect, go to step d.
d. Place the LINE switch to STANDBY .
e. Replace the A18 PCB.
f. Place the LINE switch to OPERATE and measure the
regulated voltages per Table 5-7.
G If the voltages are correct, the problem is cleared.
G If the voltages are still incorrect, contact your local
ANRITSU service center for assistance.
Step 3. Run self-test again.
G If no error message is displayed, the problem is cleared.
G If error 105 displays again, contact your local ANRITSU
service center for assistance.
Table 5-6. Error Messages 105 and 106 (2 of 10)