3-32 Service Guide
Adjustments and Correction Constants 8719ET/20ET/22ET
Initialize EEPROMs (Test 53) 8719ES/20ES/22ES
RF Network Analyzers
Initialize EEPROMs (Test 53)
This internal service test performs the following functions:
• destroys all correction constants and all unprotected options
• initializes certain EEPROM address locations to zeroes
• replaces the display intensity correction constants with default values
NOTE This routine will not alter the serial number or protected option number
correction constants (Tests 49 and 50, respectively).
a. Press the following:
12. Restore the analyzer’s correction constants by referring to the “Correction Constants
Retrieval Procedure” on page 3-35.
13. If you don't have the correction constants backed up on a disk, run all the internal
service routines in the following order:
a. Unprotected Hardware Option Correction Constants, on page 3-15
b. Analog Bus Correction Constants (Test 44), on page 3-8
c. Source Pretune Correction Constants (Test 43), on page 3-6
d. ADC Offset Correction Constants (Test 48), on page 3-10
e. IF Step Correction Constants (Test 47), on page 3-9
f. Raw Offset Correction Constants, on page 3-48
g. Sampler Calibration Correction Constants (Test 51), on page 3-58
Preset
Preset
System
53 x1
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