Basic Operating Tests; Backlight Test; Display Test - Keysight U1281A Service Manual

Basic Operating Tests

The basic operating tests are used to test the basic operability of the multimeter.
Repair is required if the multimeter fails the basic operating tests.

Backlight test

Press
off.

Display test

Press
display with the example in
Figure 1-1
Keysight U1281A/U1282A Service Guide
to test the backlight. It will momentarily turn the backlight on and
Hold
and turn on the multimeter by turning the rotary switch from
to any other position to view all annunciators of the display. Compare the
Display screen
Figure 1-1.
Calibration Procedures 1
21