Chapter 2 Operating Your Frequency Counter
Front Panel Display Messages
2-64 Operating Guide
2
Power-Up/Self Test Messages
The following sequence occurs when you turn on the Counter:
1 All of the vacuum-fluorescent display segments and the indicators (or LEDs) are
illuminated for the power-up test.
2 If all tests pass: SELFTST: PASS will be displayed. (See NOTE below.)
3 HP-IB AT 3 is displayed, and then the Counter will start taking measurements.
NOTE If there is a failure, each test that fails will display a failure message, and SELFTST:
FAIL will be displayed. You must press any key in order for the Counter to go on.
Possible individual failure messages are:
FAIL: DISP display test
FAIL: CPU processor test
FAIL: ROM ROM test
FAIL: RAM RAM test
FAIL: EEPROM EEPROM test
FAIL: HP-IB GPIB hardware test
FAIL: QSPI serial hardware loops test
FAIL: FPGA count circuit test
FAIL: FR END front end test
FAIL: MEAS measurement test
FAIL: INTERP interpolator test
In addition, the following power-up message may be displayed:
UNCALIBRATED
This means that at least one type of calibration has NOT been performed.
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