Basic Operating Test
Backlit Test
Testing the Display
Agilent U1251A/U1252A User's and Service Guide
Basic Operating Test is to test the basic operability of the
instrument. Repair is required if the instrument fails the
Basic Operating Test.
Press the BAT button to test the backlight. It will momen-
tarily toggle backlit ON and OFF.
Press the
button and turn on the Meter to view all
segments of the display. Compare the display with the
example in Figure 1.
Figure 54 LCD display
Performance Tests and Calibration
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