4-16 Keysight N5227B Service Guide
Troubleshooting
Front Panel Troubleshooting
4-
Figure 4-4
Front Panel Key Test Utility Dialog Box
Checking the Front Panel Keys
To check the front panel keys, push each key and compare the name in the Key
Label box to the name physically labeled on the key cap. These names are also
below. Verify that the Key Label and the Codes match.
— If all the key names are correct, then the front panel keypad is working. If
some of the keys are not working, suspect a faulty keypad. To replace the
“Removing the A1 Front Panel Interface Board and Keypad
— If none of the keys are working correctly, suspect a faulty touchscreen
controller board or the A1 front panel interface board. To replace the
touchscreen controller board, refer to
Controller Board” on page 7-10
. To replace the A1 front panel interface
“Removing the A1 Front Panel Interface Board and Keypad
— To close the Key Label window and return to the instrument display, press
Preset
three times.
Содержание N5227B
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