Keysight N5227A Service Manual page 84

Troubleshooting
Front Panel Troubleshooting
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 some of the keys are not
working, suspect a faulty keypad. To replace the keypad, refer to
Board and Keypad Assembly" on page
• If none of the keys are working correctly, suspect a faulty A1 front panel interface board. To replace the
A1 front panel interface board, refer to
Assembly" on page 7-8.
Table 4-2 Front Panel Keyboard Key Names
TRACE/CHAN
Keys
Trace 1
Trace 2
Trace 3
Trace 4
Traces
Receiver
Navigation
Keys




Click
4-14
7-8.
"Removing the A1 Front Panel Interface Board and Keypad
RESPONSE
Keys

Meas
Format

Scale

Display
Avg

Cal
MARKER/
ANALYSIS Keys

Marker

Search
Memory

Analysis





PNA Series Microwave Network Analyzers
Table 4-2 below.
"Removing the A1 Front Panel Interface
ENTRY
Keys
OK
Cancel
Help
Bk Sp
0
1
2
3
4
5
6
7
8
9
G/n
M/u
N5227A
ENTRY
Keys (Cont'd)
k/m
Enter
Off
. (decimal point)
+/-
STIMULUS
Keys
Freq
Power
Sweep
Trigger
UTILITY
Keys
Save
Print
Macro
Recall
System
Preset
Service Guide N5227-90001