Basic Operating Test; Lcd Backlight Test; Led Flashlight Test - Keysight U1190A Series Service Manual

Basic Operating Test

The tests listed below are used to test the basic operations of the instrument.
Repair is required if the instrument fails the any of the tests.
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LCD backlight test

Power-on the clamp meter and press
models) or
on. Press the

LED flashlight test

For U1192A, U1193A, and U1194A models only:
Press and hold the
is turned on. Press and hold the
LED flashlight off.
Keysight U1190A Series Service Guide
"LCD backlight test"
"LED flashlight test"
"Display test"
(on the U1191A model). Check that the LCD backlight is turned
/ key again to turn the LCD backlight off.
(on the U1192A/U1193A/U1194A
key for more than 1 second. Check that the LED flashlight
key for more than 1 second again to turn the
Calibration Procedures 1
21