Keysight Technologies E8257D User Manual

E8257D/67D, E8663D PSG Signal Generators Service Guide 403
Post–Repair Procedures
Post–Repair Procedures Matrix
Table 4-2 Post Repair Adjustments: Assemblies A13—A26 (For Prefixes < xx4928)
Adjustments Replaced Assembly
The following adjustments are listed in the order that
they should be performed for proper calibration.
A13 IQ Multiplexer A14 Baseband Generator A17 Baseband Generator Interface A18 CPU A19 Power Supply A20 SMI [Source Module Interface] A21 Rear Panel A22 Line Module A23 Lowband Coupler/Detector A24 20 GHz Coupler A24 40 GHz Coupler A24 67 GHz Coupler A25 20 GHz Detector A25 40 GHz Detector A25 67 GHz Detector A25B Detector Bias Board A26 MID
ADC Calibration X X X X
IQ /Gain/Offset/Quadrature Calibration X X X
Target IQ Power Calibration X
1/f Corner Calibration X
IQ Time Skew RF X X
IQ Time Skew Baseband XXX
ALC Dynamic Calibration X X X X X X X X
Lowband Digital Prelevel Gain Calibration X
VBLO Mixer Bias Calibration X
LB Digital Gain Calibration X
Low Band Power Flatness Calibration X X X X X X X X
High Band Power Flatness Calibration X X X X X X X X
V-Band Power Flatness Calibration X X
IQ Power Floor Calibration X
Low Band IQ Power Floor Calibration X
IQ Impairment Calibration X X X
Table 4-3 Post Repair Adjustments:
Assemblies A27—A40, AT1, B1, and RF Output Connector (For Prefixes <
xx4928)
Adjustments Replaced Assembly
The following adjustments are listed in the order that they
should be performed for proper calibration.
A27 40 GHz Doubler A28 YIG Oscillator A29 20 GHz Doubler A30 Mod Filter A31 Motherboard A32 10 MHz Crystal Oscillator A34 Internal Hard Drive A35 3 − 20 IQ Modulator
A36 Quadraplier A37 Up Converter A38 Lowband Switch Filter A39 Directional Coupler A40 Flash Drive AT1 115 dB Attenuator B1 Fan RF Output Connector
ADC Calibration X X X X X X X X
YIG–Driver Pre–Tune Calibration X
FM Scale Offset Calibration X
FM Path Offset Calibration X
FM In–band Offset Calibration X
FM 1/2 Path Ratio Gain Calibration X
Mod Source Relative Gain Calibration X
FM/PM YO Frequency Compensation Calibration X
DC FM Calibration X
External Input Peak Detector Calibration X
I/Q Modulation Calibration X

Keysight Technologies E8257D Specifications

General

Brand	Keysight Technologies
Model	E8257D
Category	Portable Generator
Language	English