Anritsu 682XXB - Manual (Page 202)

5-36 682XXB/683XXB MM
TROUBLESHOOTING
TROUBLESHOOTING TABLES
A12 Analog Instruction
Error 107 Sweep Time Check Failed
Error 117 Linearizer Check Failed
Error 118 Switchpoint DAC Failed
Error 119 Center Frequency Circuits Failed
Error 120 Delta-F Circuits Failed
Description: Each of these error messages indicates a problem in the
circuitry on the A12 Analog Instruction PCB that provides frequency
tuning voltages for the YIG-tuned oscillator.
Step 1. Perform a preliminary calibration. (Refer to chapter 4 for
the calibration procedure.)
Step 2. Run self-test.
G If no error message is displayed, the problem is cleared.
G If any of the error messages, listed above, is displayed, go
to step 3.
Step 3. Replace the A12 PCB and run self-test again.
G If no error message is displayed, the problem is cleared.
G If any of the error messages, listed above, is displayed,
contact your local
ANRITSU service center for assistance.
Table 5-16. Error Messages 107, 117, 118, 119, and 120