Keysight Technologies E8257D User Manual

406 E8257D/67D, E8663D PSG Signal Generators Service Guide
Post–Repair Procedures
Post–Repair Procedures Matrix
V-Band Low Power Attenuator Accuracy (E8257D with Option 567
and 1E1 Only)
X
V-Band ALC Modulator Calibration (E8257D with Option 567 Only)
X
Ramp Sweep Calibration (E8257D/E8663D with 007 and E8257N
Only)
X
X
Pulse Width calibration (E8257D with Option UNU, UNW, UNS, or
HNS, and E8663D/E8257N Only)
X
Low Band Digital Prelevel Calibration X
VBLO Mixer Bias Calibration X
Low Band Digital Gain Calibration X
9V PTAT ABUS Measure Calibration 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 Mul tiplexer 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
High Band ALC Linearity Calibration
X X X X
High Band Power Flatness Calibration
X X X X
High Band High Power ALC linearity Calibration (E8257D
with Option 521 Only)
X X X X
Low Band ALC Linearity Calibration
X X X X
Low Band ALC Linearity Calibration
X
Low Band Power Flatness Calibration X
Low Band High Power ALC Linearity Calibration
X
User Clamp Calibration (Option 1EU Only) X
Low Band Power Maximum Calibration
X
Low Band ALC Modulator Prep Calibration X
V-Band Power Flatness Calibration (E8257D with Option
567 Only)
X X
V-Band Low Power Attenuator Accuracy (E8257D with
Option 567 and 1E1 Only)
Table 4-4 Post-Repair Adjustments: Assemblies A1—A11 (For prefixes >= xx4928)
Adjustments Replaced Assembly
The following adjustments are listed in the order that they should
be performed for proper calibration.
A1 Keyboard A2 Display A2DS1 Display Backlight A3 Power Switch A4 Inverter A5 Sampler A6 Frac-N A7 Reference (Standard) A7 Reference (Option UNR/UNX) A8 Output (Analog) A8 Output (Digital) A9 YIG Driver A10 ALC A11 Pulse/Analog Mod Gen

Keysight Technologies E8257D Specifications

General

Brand	Keysight Technologies
Model	E8257D
Category	Portable Generator
Language	English