Keysight Technologies E8257D User Manual

E8257D/67D, E8663D PSG Signal Generators Service Guide 407
Post–Repair Procedures
Post–Repair Procedures Matrix
V-Band ALC Modulator Calibration (E8257D with Option
567 Only)
X X
Ramp Sweep Calibration (E8257D/E8663D with 007) X
X X X X
IQ Gain/Offset/Quadrature Calibration
X X X
Target IQ Power
X
1/f Corner
X
IQ Time Skew RF
X X
IQ Time Skew Baseband
X X X
Low Band IQ Power Floor Calibration
X
High Band IQ Power Floor Calibration
X
Low Band IQ Boost Calibration
X
IQ Impairment Calibration
X X X
Table 4-6 Post-Repair Adjustments:
Assemblies A27—A46, 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 A39 Directional Coupler A40 Flash Drive A43 LB Amp/Filter A44 Scan Mod A45 Frac-N/Offset
a
A46 Offset Loop
a
AT1 115 dB Attenuator B1 Fan RF Output Connector
ADC Calibration X X X X X X X X
Frac-N Pretune Calibration (Option UNY)
XX
Offset Loop Pre-tune Calibration (Option UNY)
X X
YIG–Driver Pre–Tune Calibration X
XX
FM Scale Offset Calibration (E8257D/E8663D with Option
UNT)
X
X X
FM Path Offset Calibration (E8257D/E8663D with Option
UNT)
X
X X
FM In-band Offset Calibration (E8257D/E8663D with
Option UNT)
X
X X
FM In- band DCFM Calibration (E8257D, E8267D, and
E8663D Option UNT and UNY Only)
X X
FM Out-of-Band YO Calibration (E8257D, E8267D, and
E8663D Option UNT and UNY Only)
X X
Table 4-5 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

Keysight Technologies E8257D Specifications

General

Brand	Keysight Technologies
Model	E8257D
Category	Portable Generator
Language	English