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690XXB/691XXB MM
5-45
TROUBLESHOOTING
TROUBLESHOOTING
TABLES
Error 135 Modulator or Driver Failed
Description: Error 135 indicates a failure of the modulator in the
switched filter assembly or the modulator driver circuitry on the A9
PIN Control PCB.
Step 1.
Replace the A9 PCB and run self-test.
q
If error 135 is not displayed, the problem is cleared.
q
If error 135 is still displayed, go to step 2.
Step 2.
Replace the switched filter assembly and run self-test again.
q
If error 135 is not displayed, the problem is cleared.
q
If error 135 is still displayed, contact your local Anritsu
service center for assistance.
Table 5-20.
Error Messages 128, 129, 130, 131, 132, 133, 134, and 135 (8 of 8)
Summary of Contents for 680 C Series
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