Keysight Technologies N5224A Service Manual page 89

Troubleshooting
Front Panel Troubleshooting
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
in
— If all the key names are correct, then the front panel keypad is working. If
— If none of the keys are working correctly, suspect a faulty A1 front panel
Table 4-2 Front Panel Keyboard Key Names
TRACE/CHAN
Keys
Trace 1
Trace 2
Trace 3
Keysight N5224A/25A Service Guide
Table 4-2 below.
some of the keys are not working, suspect a faulty keypad. To replace the
keypad, refer to "Removing and Replacing the A1–A3 and Other Front
Panel Subassemblies" on page
interface board. To replace the A1 front panel interface board, refer to
"Removing and Replacing the A1–A3 and Other Front Panel
Subassemblies" on page
RESPONSE
Keys
Meas
Format
Scale
7-10.
7-10.
ENTRY
Keys
OK
Cancel
Help
ENTRY
Keys (Cont'd)
k/m
Enter
Off
. (decimal point)
4-17