Keysight U1253B Guía Del Usuario Y Servicios página 170

Basic Operating Tests
These basic operating tests are for testing the basic operation of the instrument.
Repair is required if the instrument fails any of these basic operating tests.
Testing the display
Press and hold the
OLED pixels. Check for dead pixels.
Figure 6-1
Keysight U1253B User's and Service Guide
button while turning on the multimeter to view all the
Displaying all OLED pixels
Performance Tests and Calibration 6
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