Agilent Technologies N5242A - Page 88

4-14 Service Guide N5242-90001
Troubleshooting PNA Series Microwave Network Analyzers
Front Panel Troubleshooting N5242A
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 Table 4-2 below.
• 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
“Removing the A1 Front Panel Interface Board and Keypad Assembly” on page 7-10.
• 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 “Removing the A1 Front
Panel Interface Board and Keypad Assembly” on page 7-10.
Table 4-2 Front Panel Keyboard Key Names
TRACE/CHAN
Keys
RESPONSE
Keys
ENTRY
Keys
ENTRY
Keys (Cont’d)
Trace 1 Meas OK k/m
Trace 2 Format Cancel
Enter
Off
Trace 3 Scale Help . (decimal point)
Trace 4 Display Bk Sp +/-
Traces Avg 0
STIMULUS
Keys
Channel Cal 1 Freq
Navigation
Keys
MARKER/
ANALYSIS Keys
2Power
← Marker 3 Sweep
→ Search 4 Trigger
↑ Memory 5
UTILITY
Keys
↓ Analysis 6 Save
Click 7 Print
8 Macro
9Recall
G/n System
M/u Preset