Agilent Technologies E4445A Service Guide

416 Chapter 12
Post-Repair Procedures
Post-Repair Procedures
A20 Lowband Assembly
2
nd
LO Power adjustment
Lowband Mixer Bias adjustment
Overload Detector DAC adjustment
Frequency Response adjustment
Gain Compression
Displayed Average Noise
Level
Second Harmonic Distortion
TOI
Absolute Amplitude
Accuracy
Frequency Response
Below 300 kHz
Frequency Response
300 kHz to 3 GHz
A21 SLODA
or FELOMA
SLODA adjustment
or FELOMA adjustment
LO Output adjustment (Option AYZ)
SLODA adjustment (Option 123)
Absolute Amplitude
Accuracy
Frequency Response
(all frequencies)
A22 Preamp,
(Option 1DS)
Frequency Response adjustment
Reset Preamp switch activations
using software utility
Requires FW revision A.06.04 or
greater
Absolute Amplitude
Accuracy
Displayed Average Noise
Level
Frequency Response
Below 300 kHz
Frequency Response
300 kHz to 3 GHz
A23 Disk Drive Save data to a disk None
A25 Mother Board
All tests, since entire
instrument was taken
apart.
A26 CPU (processor)
Assembly
Perform Configuring a Replacement
CPU Assembly on page 422
None
A26A1 DRAM Board
None None
A26A2 Flash Memory
Board
Perform Configuring a Replacement
Flash Memory Assembly on page 425
None
A27 Electronic
Attenuator
Frequency Response (B7J) adjustment Absolute Amplitude
Accuracy
Frequency Response
300 kHz to 3 GHz
Table 12-1 Post-Repair Testing Requirements (Continued)
Assembly
Adjustments, Tests, &
Configuration
Performance Verification

Agilent Technologies E4445A Specifications

General

Brand	Agilent Technologies
Model	E4445A
Category	Measuring Instruments
Language	English