5-16
690XXB/691XXB MM
TROUBLESHOOTING
TROUBLESHOOTING
TABLES
Step 2.
Perform the following procedure to isolate malfunctions
when the voltages from several regulated supplies are incor-
rect.
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.
q
If the voltages are correct, the problem is cleared.
q
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.
q
If the voltages are correct, the problem is cleared.
q
If the voltages are still incorrect, contact your local
Anritsu service center for assistance.
Step 3.
Run self-test again.
q
If no error message is displayed, the problem is cleared.
q
If error 105 displays again, contact your local Anritsu
service center for assistance.
Table 5-6.
Error Messages 105 and 106 (2 of 9)
Summary of Contents for 680 C Series
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