Keysight Technologies N5224A Service Manual page 90

Troubleshooting
Front Panel Troubleshooting
Table 4-2 Front Panel Keyboard Key Names
TRACE/CHAN
Keys
Trace 4
Traces
Receiver
Navigation
Keys
←
→
↑
↓
Click
Checking the RPG (Front Panel Knob)
To check the RPG knob:
1. Press the UTILITY
2. Rotate the knob and check for a fluid movement of numbers on the
3. If the movement of numbers is not smooth or no numbers appear at all,
4-18
RESPONSE
Keys
Display
Avg
Cal
MARKER/
ANALYSIS Keys
Marker
Search
Memory
Analysis
Preset
analyzer display.
suspect a faulty A1 front panel interface board. To replace the A1 front
panel interface board, refer to
Other Front Panel Subassemblies" on page
ENTRY
Keys
Bk Sp
0
1
2
3
4
5
6
7
8
9
G/n
M/u
key.
"Removing and Replacing the A1–A3 and
7-10.
Keysight N5224A/25A Service Guide
ENTRY
Keys (Cont'd)
+/-
STIMULUS
Keys
Freq
Power
Sweep
Trigger
UTILITY
Keys
Save
Print
Macro
Recall
System
Preset