Chapter 4 239
Troubleshooting the Analyzer
Using the Internal Service-Diagnostic Routines
Verify the displayed calibration data
1. Press the following analyzer keys.
CAL, More 1 of 4, More 2 of 4
SERV DIAG
DISPLAY CAL DATA
2. Verify that the digital correction values are within their limits. Refer
to Chapter 14 for typical examples of the calibration data displays.
• If default values are being used, all digital corrections should be
zero.
• If corrections are being used, make sure that all digital
corrections are present. Typical values should be below 1.00.
3. Return to the diagnostics menu by pressing the following analyzer
keys.
PRESET
FREQUENCY, BAND LOCK, 0-2.9 GHz BAND 0 (except 8590L,
8591E, and 8594E)
CAL, More 1 of 4, More 2 of 4
SERV DIAG, More 1