Agilent Technologies 8720E Series Service Guide

14-36 Service Guide
Assembly Replacement and Post-Repair Procedures 8719ET/20ET/22ET
Post-Repair Procedures 8719ES/20ES/22ES
RF Network Analyzers
Replaced Assembly Adjustments / Correction
Constants (CC)
Veri fi cation
A11 Phase Lock A7 Switch Positions
Analog Bus CC (Test 44)
Source Pretune (Tests 43)
Frequency Accuracy Performance Test
A12 Reference Reference Assembly VCO Tune Frequency Accuracy Performance Test
A13 Fractional-N
(Analog)
A7 Switch Positions
Analog Bus CC (Test 44)
Fractional-N Spur Avoidance and
F M Sideband Adjustment
Internal Test 20
Frequency Accuracy Performance Test
A14 Fractional-N
(Digital)
A7 Switch Positions
Analog Bus CC (Test 44)
Internal Test 20
Frequency Accuracy Performance Test
A15 Preregulator None Internal Test 0
A16 Rear Panel Interface None No test available
A17 Motherboard None Internal Test 0
A18 Display None Internal Tests 62–76
A19 Graphics System
Processor
None Internal Tests 55−76
A51 Test Set Interface None Op Ck Port1 (Test 21)
Op Ck Port2 (Test 22)
A53 Low Band Assembly
Output Power Adjustments
Power Linearity Adjustments
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
A54 YIG2 20–40 GHz
(8722ET/ES)
Source Pretune CC (Test 43)
Output Power Adjustments
Power Linearity Adjustments
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
A55 YIG1 2.4-20 GHz
Source Pretune CC (Test 43)
Output Power Adjustments
Power Linearity Adjustments
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
A56 LED Board
None Observe LEDs when switching from
S11 to S22
A57 Fixed Oscillator
Output Power Adjustments
Power Linearity Adjustments
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
A58 M/A/D/S
Output Power Adjustments
Power Linearity Adjustments
Level Accuracy Performance Test
Source Linearity Performance Test
A59 Source Interface
Output Power Adjustments
Power Linearity Adjustments
Level Accuracy Performance Test
Source Linearity Performance Test
A60/61 DC Bias Tees
Output Power Adjustments
Power Linearity Adjustments
Level Accuracy Performance
Source Linearity Performance Test

Agilent Technologies 8720E Series Specifications

General

Brand	Agilent Technologies
Model	8720E Series
Category	Measuring Instruments
Language	English