Chapter 12 413
Post-Repair Procedures
Post-Repair Procedures
A7 Digital IF Assembly Internal Align All Now
Perform the calibration constant reset
procedure for this assembly
Absolute Amplitude
Accuracy
Resolution BW Switching
Display Scale Fidelity
Power BW Accuracy
A8 Analog IF Assembly Perform the calibration constant reset
procedure for this assembly
Analog IF Input Detector adjustment
Internal Align All Now
Check function of the front panel
external trigger input.
Burst Trigger test on page 419
Absolute Amplitude
Accuracy
Noise Sidebands < 50kHz
Offset
Power Bandwidth Accuracy
Displayed Average Noise
Level
IF Amplitude Ripple
(option B7J)
Display Scale Fidelity
IF Phase Ripple (option B7J)
Resolution Bandwidth
Switching Uncertainty
A9 2
nd
LO/Fan Control
Assembly
Second LO Power adjustment
Check functionality of Trig 1 and Trig
2 rear panel outputs
Check fan operation
Assure there are no 2
nd
LO unlock
messages
Noise Sidebands
(both tests)
A10 3
rd
Converter
Assembly
— E4440-60208 requires
FW revision A.02.04 or greater
— E4440-60213 requires
FW revision A.03.03 or greater
Perform the calibration constant reset
procedure for this assembly
50 MHz Calibrator Amplitude
adjustment
Frequency Response adjustment,
all bands
IF Input Adjustment (Option AYZ)
Third Order
Intermodulation Distortion
Spurious Responses
Absolute Amplitude
Accuracy
Displayed Average Noise
Level
Power Bandwidth Accuracy
Frequency Response
(all frequencies)
Table 12-1 Post-Repair Testing Requirements (Continued)
Assembly
Adjustments, Tests, &
Configuration
Performance Verification