HP 5335A - Page 74

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Operation and Programming
B. FRONT PANEL CHECK
To perform the HP5335A FRONT PANEL CHECK, use a BNC cable to connect the rear
panel TBO (Time Base Output) to the front panel INPUT A. Set the HP5335A controls
as follows:
1M/50 n .50 n
3-227. Press and hold the “CHECK" button for about three seconds. Verify that all HP5335A
display annunciators turn ON for approximately ten seconds; during which the front end
amplifiers are checked for the accuracy, cross-talk, attenuation and separate/common with the
input signal. Successful completion of the test loop is indicated by a display of “FE PASS". Any
failures are identified by a numbered fail message. For a description of the numbered FAIL
messages, refer to paragraph 3-229.
3-228. The FRONT PANEL CHECK is a built-in continuous loop, which will repeat until manually
reset. To halt the test and return to normal operation, press any Function key.
3-229. ERROR/FAIL MESSAGES
3-230. Under certain conditions the 5335A will display either Error or Fail type messages. These
messages typically occur during the power-up cycle. The fail messages are displayed in a
continuous loop, and generally indicate a hardware related problem. Error messages indicate
that the user has attempted an improper operation, either through the keyboard or the HP-IB.
Table 3-9 lists the Error Messages, and Table 3-10 lists the Fail Messages, if a Fail message is
displayed, refer to the troubleshooting information in Section VIII.
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