Agilent Technologies E4400-90335 User Manual

Service Guide

Agilent Technologies

ESG Family Signal Generators

Serial Number Pref i xes :

(Affix Label Here)

Part No. E4400-90335

Printed in USA

August 2003

Contents

1. Initial Troubleshooting and RF Block Diagrams

Before You Begin Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Using this Service Guide to Troubleshoot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Signal Generator Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Contacting Agilent Technologies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Check the Basics before Contacting Agilent Technologies . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Review the Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Calling Agilent Technologies Sales and Service Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Returning Y our Signal Generator for Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10

Equipment Required for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11

Initial Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12

Step 1: Observe the Front and Rear Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12

Step 2: Power On the Signal Generator and Check for Error Messages . . . . . . . . . . . . . .1-13

Step 3: Functional Check the Front Panel Keys and Display . . . . . . . . . . . . . . . . . . . . . .1-14

Step 4: Visually Check the Individual Voltage Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

Step 5: Measure the Individual Vo ltage Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16

Step 6: Isolate the Failed Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

Step 7: Check for Basic CPU Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21

Additional Information for Troubleshooting the ESG-AP and ESG-DP Series . . . . . . . . . .1-23

ESG-A Series RF Block Diagram (Standard & Option 1E6) . . . . . . . . . . . . . . . . . . . . . . . . .1-25

ESG-D Series RF Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27

ESG-D Series RF Block Diagram (Options UN3 & UN4) . . . . . . . . . . . . . . . . . . . . . . . . . . .1-29

ESG-D Series RF Block Diagram (Option UN8 or UN9) Rev C or D . . . . . . . . . . . . . . . . . .1-31

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32

ESG-D Series RF Block Diagram (Options UN8 & UN9) Rev B. . . . . . . . . . . . . . . . . . . . . .1-35

ESG-D Series RF Block Diagram (Option UND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-37

ESG-D Series RF Block Diagram (Option UN7, UN8/UN9, & 300) . . . . . . . . . . . . . . . . . . .1-39

ESG-AP Series RF Block Diagram (Standard & Option 1E6). . . . . . . . . . . . . . . . . . . . . . . .1-41

ESG-DP Series RF Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-43

ESG-DP Series RF Block Diagram (Option UN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-45

ESG-DP Series RF Block Diagram (Options UN8 & UN9) . . . . . . . . . . . . . . . . . . . . . . . . . .1-47

ESG-DP Series RF Block Diagram (Option UND). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-49

Blue Repair Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-51

2. Assembly-Level Troubleshooting with Block Diagrams

Before You Begin Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Using this Chapter with Service Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

A5 Dual Arbitrary Waveform Generator Block Diagram (Option UND) . . . . . . . . . . . . . . . .2-5

A6 Bit Error Rate Test Block Diagram (Option UN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

A7 Baseband Generator Block Diagram (Options UN3 & UN4). . . . . . . . . . . . . . . . . . . . . . .2-9

A7 DBMIC Baseband Generator Block Diagram (Options UN8 & UN9). . . . . . . . . . . . . . .2-11

A8 Data Generator Block Diagram (Options UN3 & UN4). . . . . . . . . . . . . . . . . . . . . . . . . .2-13

A8 Data Generator - Rev. A & B Block Diagram (Options UN8 & UN9) . . . . . . . . . . . . . . .2-15

A8 Flex Data Generator - Rev. C & D Block Diagram (Options UN8 & UN9) . . . . . . . . . . .2-17

A9 Output ABUS Nodes (ESG-A Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

A9 Output Block Diagram (ESG-A Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21

A9 Output ABUS Nodes (ESG-D Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

A9 Output ABUS Nodes (ESG-AP, & ESG-DP Series). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

A9 Output Block Diagram (ESG-D, ESG-AP, & ESG-DP Series) . . . . . . . . . . . . . . . . . . . . .2-27

A11 Reference ABUS Nodes (ESG-A & ESG-D Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29

A11 Reference Block Diagram (ESG-A & ESG-D Series) . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31

iii

Contents

A11 Reference ABUS Nodes (ESG-AP & ESG-DP Series) . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

A11 Reference Block Diagram (ESG-AP & ESG-DP Series). . . . . . . . . . . . . . . . . . . . . . . . . 2-35

A12 Synthesizer/Doubler ABUS Nodes (ESG-A & ESG-D Series) . . . . . . . . . . . . . . . . . . . . 2-37

A12 Synthesizer/Doubler Block Diagram (ESG-A & ESG-D Series) . . . . . . . . . . . . . . . . . . 2-39

A14 CPU/Motherboard ABUS Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

A14 CPU/Motherboard Block Diagram (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43

A14 CPU/Motherboard Block Diagram (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

A20 Downconvertor Block Diagram (Option 300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

A21 Demodulator Block Diagram (Option 300). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49

A22 YIG Driver ABUS Nodes (ESG-AP & ESG-DP Series) . . . . . . . . . . . . . . . . . . . . . . . . . 2-51

A22 YIG Driver Block Diagram (ESG-AP & ESG-DP Series). . . . . . . . . . . . . . . . . . . . . . . . 2-53

A23 Sampler ABUS Nodes (ESG-AP & ESG-DP Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55

A23 Sampler Block Diagram (ESG-AP & ESG-DP Series). . . . . . . . . . . . . . . . . . . . . . . . . . 2-57

A24 Frac-N/Divider ABUS Nodes (ESG-AP & ESG-DP Series . . . . . . . . . . . . . . . . . . . . . . 2-59

A24 Frac-N/Divider Block Diagram (ESG-AP & ESG-DP Series . . . . . . . . . . . . . . . . . . . . . 2-61

AT1 Electronic Attenuator/RPP Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63

AT1 Mechanical Attenuator and A19 RPP Block Diagram (Option UNB) . . . . . . . . . . . . . 2-65

ESG-A Series Power Supply and Ground Interconnects Block Diagram. . . . . . . . . . . . . . . 2-67

ESG-D Series Power Supply and Ground Interconnects Block Diagram (1 of 2) . . . . . . . . 2-69

ESG-D Series Power Supply and Ground Interconnects Block Diagram (2 of 2) . . . . . . . . 2-71

ESG-A Series Modulation and Signal Interconnects Block Diagram. . . . . . . . . . . . . . . . . . 2-73

ESG-D Series Modulation and Signal Interconnects Block Diagram (1 of 2) . . . . . . . . . . . 2-75

ESG-D Series Modulation and Signal Interconnects Block Diagram (2 of 2) . . . . . . . . . . . 2-77

3. Replaceable Parts (ESG-A and ESG-D Series)

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Call (800) 227-8164 to Order Parts Fast (U.S. Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Save Money with Rebuilt-Exchange Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Shipping the Defective Assembly Back to Agilent Technologies. . . . . . . . . . . . . . . . . . . . . 3-4

Abbreviations Used in Part Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Major Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Top View (ESG-D Series - Option 300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Right Side Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Disassembled Front Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Inside Rear Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Top View (ESG-A Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Top View (ESG-D Series - Options UN3/4, UN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Top View (ESG-D Series - Options UN7, UN8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Top View (ESG-D Series - Option UND). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Top View (ESG-D Series - Options UN3/4, UN7 with 1EM) . . . . . . . . . . . . . . . . . . . . . . . 3-24

Top View (ESG-D Series - Options UN7, UN8 with 1EM). . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Top View (ESG-D Series - Options UN7, UN8, UND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Top View (ESG-D Series - Option UND with 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Top View (ESG-D Series - Option 300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Inside Front Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Electronic Attenuator/RPP View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Contents

Electronic Attenuator/RPP View (with Option 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38

Mechanical Attenuator View (Option UNB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-40

Mechanical Attenuator View (Option UNB with 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . .3-42

Pulse Modulator View (Option 1E6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-44

Hardware and Other Instrument Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-45

Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-46

Downconvertor View (Option 300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48

Disassembled Mechanical Attenuator View (Option UNB) . . . . . . . . . . . . . . . . . . . . . . . .3-49

Disassembled Pulse Modulator View (Option 1E6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-50

Disassembled Pulse Modulator View (Option 1E6/UNB). . . . . . . . . . . . . . . . . . . . . . . . . .3-51

Front Panel View (ESG-A Series). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-52

Front Panel View (ESG-D Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-54

Disassembled Front-Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Daughterboard Card Cage View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-58

Inside Rear-Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-59

Rear-Panel View (ESG-A Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

Rear-Panel View (ESG-A Series - Option 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-62

Rear-Panel View (ESG-D Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-64

Rear Panel View (ESG-D Series - Option 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-66

Instrument Chassis with Top and Right-Side Hardware . . . . . . . . . . . . . . . . . . . . . . . . . .3-68

Power Supply Shield and Left-Side Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-70

Motherboard and Bottom-Side Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-71

Instrument Cover and Associated Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-72

Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-74

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-74

Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-75

Electrostatic Discharge (ESD) Protective Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-78

Upgrade and Retrofit Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-78

4. Replaceable Parts (ESG-AP and ESG-DP Series)

Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Call (800) 227-8164 to Order Parts Fast (U.S. Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Save Money with Rebuilt-Exchange Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Shipping the Defective Assembly Back to Agilent Technologies . . . . . . . . . . . . . . . . . . . . .4-4

Abbreviations Used in Part Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Major Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Right Side Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Disassembled Front Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Inside Rear Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Top View (ESG-DP Series - Options UN7, UN8). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16

Top View (ESG-DP Series - Option UND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Top View (ESG-DP Series - Options UN7, UN8 with 1EM). . . . . . . . . . . . . . . . . . . . . . . .4-20

Top View (ESG-DP Series - Options UN7, UN8, UND) . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22

Top View (ESG-DP Series - Option UND with 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24

Side View — YIG Driver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26

Contents

Inside Front Panel View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Electronic Attenuator/RPP View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Electronic Attenuator/RPP View (with Option 1EM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Mechanical Attenuator View (Option UNB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Mechanical Attenuator View (Option UNB with 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Pulse Modulator View (Option 1E6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Hardware and Other Instrument Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

YIG Driver View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Disassembled Mechanical Attenuator View (Option UNB). . . . . . . . . . . . . . . . . . . . . . . . 4-43

Disassembled Pulse Modulator View (Option 1E6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Disassembled Pulse Modulator View (Option 1E6/UNB) . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Front Panel View (ESG-AP Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Front Panel View (ESG-DP Series). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

Disassembled Front-Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50

Daughterboard Card Cage View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52

Inside Rear-Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53

Rear-Panel View (ESG-AP Series). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Rear-Panel View (ESG-AP Series - Option 1EM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Rear-Panel View (ESG-DP Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

Rear Panel View (ESG-DP Series - Option 1EM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

Instrument Chassis with Top and Right-Side Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

Power Supply Shield and Left-Side Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64

Motherboard and Bottom-Side Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

Instrument Cover and Associated Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66

Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-69

Electrostatic Discharge (ESD) Protective Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72

Upgrade and Retrofit Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72

5. Assembly Replacement

Before You Replace an Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

After Replacing an Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Assemblies That You Can Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

A1 Front Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

A2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

A2DS1 Fluorescent Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

A3 Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Contents

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

A4 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12

A4 Power Supply (with Option 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

A14 CPU/Motherboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20

A14BT1 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24

A14Q501 Transistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26

A15 Daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-30

A16 Line Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32

A17 and A18 Rear Panel Interface Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-34

A19 Reverse Power Protection (RPP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-36

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-36

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-36

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-37

A20 Downconvertor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-39

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-39

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-39

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-39

A22 YIG Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40

A25 Pulse Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-41

Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-41

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-41

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-41

vii

Contents

A25 Pulse Modulator (with Option UNB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-44

AT1 Electronic Attenuator/RPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

AT1 Mechanical Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-49

B1 Small Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52

B2 Large Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54

Daughterboard Card Cage Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56

Digital Card Cage Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-62

Instrument Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 4

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-64

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-66

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-66

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-66

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-68

Rear Panel (with Option 1EM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-70

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-70

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-70

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-72

Semi-Rigid Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-73

Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-73

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-73

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-73

viii

Contents

6. Post-Repair Procedures

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7

7. Safety and Regulatory

Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

General Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

Lithium Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4

Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5

Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6

Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7

Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8

Contents

ESG Family Signal Generators

1Initial Troubleshooting and RF

Block Diagrams

This chapter will help you begin troubleshooting your signal generator. The procedures in this chapter primarily check your instrument for failures that affect the power supplies or CPU function. An RF block diagram of your signal generator is at the end of this chapter.

Service Guide 1-1

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Before You Begin Troubleshooting

Before You Begin Troubleshooting

Be sure to review the warning and caution statements described in Chapter 7 prior to troubleshooting your signal generator.

Using this Service Guide to Troubleshoot

Several chapters in this service guide work together to help you troubleshoot and repair your signal generator.

• Chapter 1, “Initial Troubleshooting and RF Block Diagrams,” helps you get started with some basic checks and instructions.

• Chapter 2, “Assembly-Level Troubleshooting with Block Diagrams,” helps you identify and verify the failed assembly.

• Chapter 3, “Replaceable Parts (ESG-A & ESG-D),” helps you locate the failed assembly or cable in the signal generator and also provides you with part numbers and ordering information.

• Chapter 4, “Replaceable Parts (ESG-AP & ESG-DP),” helps you locate the failed assembly or cable in the signal generator and also provides you with part numbers and ordering information.

• Chapter 5, “Assembly Replacement,” gives you step-by-step instructions on how to remove and replace an assembly.

• Chapter 6, “Post-Repair Procedures,” lists the performance tests and adjustments that must be performed after an assembly has been repaired or replaced.

1-2 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Signal Generator Options

This section lists the hardware, software, and documentation options you can order with a new signal generator. Some of the options can be retroﬁtted into your existing signal generator. Order a retroﬁt by requesting either the post-sales option number or the part number.

Hardware and Software Options Available for New Instruments

Desired

Option

100 X X UND

101 X X UND 1CM X X X X 1CN X X X X

1CP X X X X

1EM X X X X

1E5 X X 1E6 X X

200

201

300 X X UN7, UN8 UND UN5 X X UND UN7 X X UN3,UN4,or

UN8 X X UN9 X X UN8 UNA X X UN8 UNB UNB X X UNA

UND X X

ESG-A ESG-D ESG-AP ESG-DP

Standard Standard

X X UN8 X X UN8

Required

Options

UN8

Incompatible

Options

Service Guide 1-3

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Signal Generator Options

Adding Hardware and Software Options to Existing Instruments

Desired

Option

100 UND 150 101 UND 151 200 UN8 250

201 UN8

300 UN7, UN8 UN5 UND 005 UN7 UN3, UN4, or UN8 007 E4400-60143 UN8 008 E4400-60170 UN8 UN3 or UN4 E4400-60160

UN8 and UN9 009 E4400-60185

UN8 andUN9 UN3 or UN4 E4400-60184

UND 004 E4400-60166 UND UN3 or UN4 E4400-60181

Existing

Option

Required Options

Post-Sales

Option

251

Part Number

1-4 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Signal Generator Options

Option Description

100 Option 100 has two implementations:

Multichannel W-CDMA (Revision 1.0-1.2) Personality - This ﬁrst implementation of Option 100 simulates multichannel forward and reverse link signals according to the developing W-CDMA international standards. Spreading and frame structure of these signals are implemented according to March 1999 ARIB 1.0 - 1.2 speciﬁcation.

Multichannel W-CDMA (3GPP 3.1 12-99) Personality - This second implementation of Option 100 simulates multichannel downlink and uplink signals according to the developing W-CDMA international standards. This option implements a chip rate of 3.84 Mcps, and is based on the December 1999 3GPP 3.1 speciﬁcation.

101 Multichannel CDMA2000 Personality - This option simulates

multichannel forward and reverse link signals according to the developing CDMA2000 standard revision 8.

1CM Rack Mount Flanges without Handles - This option adds two ﬂanges and

the necessary hardware to rack mount the signal generator in a System II or System II Plus cabinet.

1CN Front Handles - This option adds two front handles with the necessary

hardware to attach the handles to the front of the signal generator.

1CP Rack Mount Flanges with Handles - This option adds two front handles,

two ﬂanges, and the necessary hardware to rack mount the signal generator in an System II or System II Plus cabinet.

1E5 High Stability Timebase - This option replaces the standard timebase

reference assembly with a high-stability timebase reference assembly that has improved speciﬁcations over the standard assembly, including warranted speciﬁcations for aging rate. This feature is standard on ESG-AP and ESG-DP Series Signal Generators.

1E6 High Performance Pulse Input - This option provides high performance

pulse capabilities with rise and fall times < 10 ns and on/off ratios > 70 dB.

1EM Move All Front Panel Connectors to Rear Panel - This option moves all of

the front panel connectors to the rear panel. If you order Option 1EM in combination with any option that adds front panel connectors, Option 1EM will cause all of the front panel connectors to be moved to the rear panel and, in addition, some of the connectors will be changed from BNC to SMB connectors.

Service Guide 1-5

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Signal Generator Options

200 Fully Coded 3GPP W-CDMA Personality - This option can be used to

provide fully-coded, multichannel downlink and uplink signals in compliance with 3GPP speciﬁcations. Support for this 3GPP W-CDMA solution may require the use of two ESG signal generators.

201 Multichannel Real-Time cdma2000 Personality - This option can be used

to provide fully-coded, multichannel forward and reverse link signals supporting both the IS-95 and IS-2000 CDMA standards.

Support for IS-2000 may require the use of two ESG signal generators. Because IS-2000 provides backward compatibility with IS-95 in RC1 and RC2 conﬁgurations, the Option 201 personality also supports the IS-95 standard.

300 Base Station BERT Extension for Option UN7 - This option adds bit error

rate testing for GSM base stations to the ESG/VSA combination.

ES1 This option indicates that a more recent version of ﬁrmware is resident in

the signal generator than was originally shipped. The operating features in the new ﬁrmware may be different than those documented in your original manual set.

UN3 I/Q Baseband Generator with 1 Mbit Pattern RAM (Obsolete) - This option

is no longer available. Option UN3 provided an I/Q baseband generator with DECT, GSM, NADC, PDC, PHS, and TETRA digital modulation formats. Option UN3 is replaced by Option UN8.

UN4 I/Q Baseband Generator with 8 Mbit Pattern RAM (Obsolete) - This option

is no longer available. Option UN4 provided an I/Q baseband generator with DECT, GSM, NADC, PDC, PHS, and TETRA digital modulation formats. Pre-modulation ﬁltering selections and PRBS capability were provided. Option UN4 is replaced by Option UN8 with Option UN9.

UN5 Multi-Channel CDMA - This option provides multi-channel IS-95 CDMA

capability, which provides ﬂexible, coded-channel setups for CDMA base stations or mobiles, components, or sub-system test.

UN7 Bit Error Rate Test - This option adds a bit error rate test function that

evaluates PN9 or PN15 bit streams for errors. Conﬁguration of data, clock, and clock gate inputs allow testing of demodulated TDMA or CDMA formats. A baseband generator must be part of the instrument conﬁguration.

UN8 Real-time I/Q Baseband Generator - This option provides a custom

modulation generator with 1 Mbit of pattern RAM. The custom modulation generator provides generic symbol building, variable symbol rates, and variable ﬁlter capabilities in addition to TDMA protocols.

UN9 +7 MBits RAM - This option adds an additional 7 Mbits of pattern RAM to

Option UN8 for very long data pattern generation. You must purchase Option UN8 in conjunction with Option UN9.

UNA Alternate Timeslot Power Level Control - This option provides alternate

timeslot power level control for adjacent timeslots in TDMA applications.

1-6 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Signal Generator Options

UNB High Power with Mechanical Attenuator - This option provides a

mechanical attenuator that provides 4 to 6 dB more output power than the standard electronic attenuator.

UND Internal Dual Arbitrary Waveform Generator - This option provides an

internal dual arbitrary waveform generator that contains an on-board digital signal processor capable of playing back downloaded waveforms to generate complex, digitally modulated signals. A 1 Megasample per channel memory accepts I/Q ﬁles from different waveform generation programs, such as Omnisys and Matlab. 14 bit DACs optimize dynamic range and reduce noise.

Service Guide 1-7

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Contacting Agilent Technologies

Contacting Agilent Technologies

This section prepares you for contacting Agilent Technologies should you have a problem with your signal generator.

Check the Basics before Contacting Agilent Technologies

Often problems may be solved by repeating what was being done when the problem occurred. A few minutes spent in performing these simple checks may eliminate time spent waiting for instrument repair.

• Check that the signal generator is plugged into the proper ac power source.

• Check that the line socket has power.

• Check that the signal generator is turned on.

• Check that the other equipment, cables, and connectors are connected properly and operating correctly.

• Check the equipment settings in the procedure that was being used when the problem occurred.

• Check that the test being performed and the expected results are within the speciﬁcations and capabilities of the signal generator. (Refer to the calibration guide.)

• Check the signal generator display for error messages. (Refer to the Error Messages guide.)

• Check operation by performing the veriﬁcation procedures in the calibration guide. Record all results in the performance test record.

Review the Warranty

If there is still a problem, read the warranty printed in Chapter 7, “Safety and Regulatory.” If your signal generator is covered by a separate maintenance agreement, be familiar with its terms.

Agilent Technologies offers several maintenance plans to service your signal generator after warranty expiration. Call your Agilent Technologies sales and service ofﬁce for full details.

Calling Agilent Technologies Sales and Service Ofﬁces

Sales and service ofﬁces are located around the world to provide complete support for your signal generator. To obtain servicing information, contact the nearest Agilent Technologies Sales and Service ofﬁce listed in Table 1-1. For information on ordering parts refer to

Chapter 3 or Chapter 4.

In any correspondence or telephone conversation, refer to the signal generator by its model number and full serial number. With this information, the Agilent Technologies representative can quickly determine whether your unit is still within its warranty period.

1-8 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Contacting Agilent Technologies

Table 1-1 Agilent Technologies Sales and Service Ofﬁces

UNITED STATES Instrument Support Center

Agilent Technologies (800) 403-0801

EUROPEAN FIELD OPERATIONS Headquarters

Agilent Technologies S.A. 150, Route du Nant-d’Avril 1217 Meyrin 2/ Geneva Switzerland (41 22) 780.8111

France Agilent Technologies France 1 Avenue Du Canada Zone D’Activite De Courtaboeuf F-91947 Les Ulis Cedex

Germany Agilent Technologies GmbH Agilent Technologies Strasse 61352 Bad Homburg v.d.H Germany

(49 6172) 16-0 France (33 1) 69 82 60 60

Great Britain Agilent Technologies Eskdale Road, Winnersh Triangle Wokingham, Berkshire RG41 5DZ England (44 118) 9696622

INTERCON FIELD OPERATIONS Headquarters

Agilent Technologies 3495 Deer Creek Rd. Palo Alto, CA 94304-1316 USA (650) 857-5027

Australia Agilent Technologies Australia Ltd. 31-41 Joseph Street Blackburn, Victoria 3130 (61 3) 895-2895

Canada

Agilent Technologies

(Canada) Ltd.

17500 South Service Road

Trans-Canada Highway

Kirkland, Quebec H9J 2X8

Canada

(514) 697-4232

Japan Agilent Technologies Japan, Ltd. 9-1 Takakura-Cho, Hachioji Tokyo 192, Japan (81 426) 60-2111

Singapore Agilent Technologies Singapore (Pte.) Ltd. 150 Beach Road #29-00 Gateway West Singapore 0718

Taiwan

Agilent Technologies Taiwan

8th Floor, H-P Building

337 Fu Hsing North Road

Taipei, Taiwan

(886 2) 712-0404 (65) 291-9088

China China Agilent Technologies 38 Bei San Huan X1 Road Shuang Yu Shu Hai Dian District Beijing, China (86 1) 256-6888

Service Guide 1-9

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Contacting Agilent Technologies

Returning Your Signal Generator for Service

Use the information in this section if you need to return the signal generator to Agilent Technologies.

Packaging the Signal Generator

Use the following steps to package the signal generator for shipment to Agilent Technologies for service:

1. Fill out a blue repair tag (available at the end of this chapter) and attach it to the instrument. Be as speciﬁc as possible about the nature of the problem. Send a copy of any or all of the following information:

• Any error messages that appeared on the signal generator display.

• A completed performance test record from the calibration guide for your instrument.

• Any other speciﬁc data on the performance of the signal generator.

2. Use the original packaging materials or a strong shipping container that is made of double-walled, corrugated cardboard with 159 kg (350 lb) bursting strength. The carton must be both large enough and strong enough to accommodate the signal generator and allow at least 3 to 4 inches on all sides of the signal generator for packing material.

CAUTION Signal generator damage can result from using packaging materials other

than those speciﬁed. Never use styrene pellets, in any shape, as packaging materials. They do not adequately cushion the instrument or prevent it from shifting in the carton. Styrene pellets cause equipment damage by generating static electricity and by lodging in the signal generator fan.

3. Surround the instrument with at least 3 to 4 inches of packing material, or enough to prevent the instrument from moving in the carton. If packing foam is not available, the best alternative is SD-240 Air Cap™ from Sealed Air Corporation (Hayward, CA

94545). Air Cap looks like a plastic sheet covered with 1-1/4 inch air-ﬁlled bubbles. Use the pink Air Cap to reduce static electricity. Wrap the instrument several times in the material to both protect the instrument and prevent it from moving in the carton.

4. Seal the shipping container securely with strong, nylon adhesive tape.

5. Mark the shipping container “FRAGILE, HANDLE WITH CARE” to ensure careful handling.

6. Retain copies of all shipping papers.

1-10 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Equipment Required for Troubleshooting

Table 1-2 lists the equipment required to troubleshoot your signal generator. You may use

the recommended model or an equivalent that meets the critical speciﬁcations.

Table 1-2 Recommended Test Equipment

Equipment

Digital Multimeter

Critical Speciﬁcations for

Equipment Substitution

Input Resistance: ≤10MΩ Accuracy: 10 mV on 100 V range

Recommended Model Number

Agilent 3458A

Service Guide 1-11

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Initial Troubleshooting

Initial Troubleshooting

Perform the following troubleshooting steps in the order they are presented. If you are unable to identify the failed assembly, go to Chapter 2, “Assembly-Level Troubleshooting

with Block Diagrams,” for further instruction.

NOTE Do not attempt to replace any fuses within the power supply to correct a

problem with your signal generator. If you determine that the power supply is the failed assembly, replace the power supply.

Step 1: Observe the Front and Rear Panel LEDs

Observing the LEDs on the front and rear panel of the signal generator will determine if there is a catastrophic failure in the power supply assembly.

1. Ensure the signal generator is plugged in (do not switch the power on) and verify that the yellow LED on both the front and rear panels is lit. Refer to Figure 1-1 for LED locations. A lit yellow LED (+15 V_STBY) indicates that line voltage is present.

2. Power on the signal generator and verify that the green LED on both the front and rear panels is lit. A lit green LED indicates the power supply has received an “ON” command. The ON/OFF switch toggles a ﬂip-ﬂop latch which biases the proper transistors in the LED control circuit. This circuit is powered by VBAT, the battery-backed SRAM supply, so that the on-off state is “remembered” even when the instrument is unplugged.

Figure 1-1 LED Locations on the Front and Rear Panels

1-12 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Initial Troubleshooting

Step 2: Power On the Signal Generator and Check for Error Messages

This procedure veriﬁes that the signal generator powers up and that the internal instrument check identiﬁes no errors. The internal check evaluates the correctness of operation and returns an error message if a problem is detected.

1. Switch on the signal generator. Let the signal generator warm up for at least ﬁve minutes.

NOTE For ESG-AP, ESG-DP, and Option 1E5 signal generators, ERROR 514,

Reference Oven Cold will occur whenever the signal generator is powered

up within ﬁve minutes of being connected to AC line power. The annunciator and the ERR annunciator will both turn on. The OVEN COLD annunciator will automatically clear after approximately ﬁve minutes. The error queue cannot be cleared, however, until the

OVEN COLD annunciator has

turned off.

2. Cycle the power to the signal generator and verify that the green LED on both the front and rear panels is lit. Refer to Figure 1-1.

OVEN COLD

3. When the display is lit, check to see if the

4. If the

ERR annunciator is turned on, review the error messages in the queue by pressing

Utility > Error Info > View Next Error Message. The ﬁrst error message in the queue will be

ERR annunciator is turned on.

shown in the text area of the display. Refer to the Error Messages guide for descriptions of error messages.

If there is more than one error message (each message will be designated as 1 of n), continue pressing the

View Next Error Message softkey until you have seen and recorded all

of the messages.

5. If you were able to resolve all of the error messages, press Utility > Error Info >

Clear Error Queue(s) to delete the list of error messages.

Service Guide 1-13

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Initial Troubleshooting

Step 3: Functional Check the Front Panel Keys and Display

1. Press various front panel hardkeys and softkeys to verify they function as expected.

2. Use the contrast keys to verify that the display can be lightened and darkened. Refer to

Figure 1-2.

Figure 1-2 Contrast Keys

1-14 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Initial Troubleshooting

Step 4: Visually Check the Individual Voltage Supplies

1. Unplug the signal generator and remove the instrument cover. Refer to Chapter 5,

“Assembly Replacement,” for removal instructions.

2. Expose the motherboard by removing the top cover. It is secured by 11 screws.

3. Plug in the signal generator and allow it to warm up for at least ﬁve minutes.

4. If possible, clear the error queue(s) of messages. Press

Queue(s)

Utility > Error Info > Clear Error

5. On the motherboard, locate the 10 LEDs that correspond to the individual voltage supplies (see Figure 1-3). Verify that all the LEDs are lit. If one or more LEDs are off, proceed to “Step 6: Isolate the Failed Assembly”.

Figure 1-3 LED Locations on the Motherboard

Service Guide 1-15

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Initial Troubleshooting

Step 5: Measure the Individual Voltage Supplies

The voltages supplied as inputs from the power supply via J6 to the motherboard are +15 V (TP502), +15 V standby (+15 V_STBY), −15 V (TP503), +12 V (TP505), and +5.2 V (TP302). DGND (TP301) is associated with these supplies.

The −6 V (TP508) and −5.2 V (TP509) supplies receive their input from the +5.2 V digital supply (5.2 VD at TP506). The +5.2 V digital line is ﬁltered to prevent the switching power supply noise from being induced onto the +5.2 VD supply lines. The −6 V is a bias voltage for circuits on the output board and other RF circuitry. The −5.2 V is used by the emitter coupled logic (ECL) digital ICs. The LCD display driver voltage (VLCD), a −14 V to −24 V source, also receives input from the +5.2 VD supply.

The input to the +32 V supply (TP504) is the +12 V supply.The +32 V supply is used by the synthesizer/doubler assembly. This supply also includes an LC noise ﬁlter.

The +12.5 V regulated supply (TP510) originates from the +15 V input. The −12.5 V regulated supply (TP511) originates from the −15 V input. These two supplies are used by the solid-state attenuator and the reverse power protection (RPP). The +10 V reference (TP501) originates from the +15 V input. The +9 V supply (TP507) originates from the +10 V reference and the +12 V supply.

1. Unplug the signal generator and turn it upside-down.

2. Expose the motherboard by removing the bottom cover. It is secured by 15 screws.

3. Plug in the signal generator.

4. Measure the voltage of each supply to verify they are within the tolerances listed in

Table 1-3. The voltage supply test point locations are shown in Figure 1-4. If all the

voltages are within tolerance, proceed to “Step 7: Check for Basic CPU Functionality”.

1-16 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Initial Troubleshooting

Table 1-3 Voltage Supply Tolerances

Test Point Supply Voltage Tolerance

J6 (pins 2, 3, 12, 13) +5.2 V +/− 3% J6 (pin 20) +15 V +/− 3% J6 (pin 18) −15 V +/− 3% J6 (pin 19) +12 V +/− 3% J6 (pin 17) +15 V_STBY +/− 5% TP301 DGND N/A TP302 +5.2 V +/− 3% TP501 +10 V_REF +/− 3% TP502 +15 V +/− 3% TP503 −15 V +/− 3% TP504 +32 V +/− 4% TP505 +12 V +/− 3% TP506 +5.2 VD +/− 4% TP507 +9 V +/− 4% TP508 −6 V +/− 4% TP509 −5.2 V +/− 4% TP510 +12.5 V +/− 4% TP511 −12.5 V +/− 4%

Service Guide 1-17

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Initial Troubleshooting

Figure 1-4 Motherboard Test Point Locations

1-18 Service Guide

ESG Family Signal Generators Initial Troubleshooting and RF Block Diagrams

Initial Troubleshooting

Step 6: Isolate the Failed Assembly

1. Switch off the signal generator.

2. Remove or disconnect an assembly. Below is a suggested order of removal/disconnection based upon ease.

For the ESG-A and ESG-D Series: a. A5 Dual Arbitrary Waveform Generator Board (Option UND)

b. A6 Bit Error Rate Test Board (Option UN7) c. A7 Baseband Generator Board (Options UN3, UN4, UN8, UN9) d. A8 Data Generator Board (Options UN3, UN4, UN8, UN9) e. A21 Demodulator Board (Option 300) f. Front Panel - disconnect A1W1 ribbon cable g. A3 Inverter - disconnect A3W1 h. A2 Display - disconnect W10 i. AT1 Electronic Attenuator/RPP - disconnect W13

AT1 Mechanical Attenuator and A19 RPP (Option UNB) - disconnect W13 and

A19W1 j. A25 Pulse Modulator (Option 1E6) - disconnect A25W1 k. B1 Fan - disconnect B1W1 (disconnect only temporarily) l. B2 Fan - disconnect B2W1 (disconnect only temporarily) m.A9 Output Board n. A11 Reference Board o. A12 Synthesizer/Doubler Board p. A20 YIG Down Convertor Assembly (Option 300) - disconnect W31

NOTE Refer to Chapter 3, “Replaceable Parts (ESG-A and ESG-D Series),” for

information on locating assemblies. Refer to Chapter 5, “Assembly

Replacement,” for information on removing or disconnecting assemblies.

For the ESG-AP and ESG-DP Series: a. A5 Dual Arbitrary Waveform Generator Board (Option UND)

b. A6 Bit Error Rate Test Board (Option UN7) c. A7 Baseband Generator Board (Options UN3, UN4, UN8, UN9) d. A8 Data Generator Board (Options UN3, UN4, UN8, UN9) e. Front Panel - disconnect A1W1 ribbon cable f. A3 Inverter - disconnect A3W1

Service Guide 1-19

Initial Troubleshooting and RF Block Diagrams ESG Family Signal Generators Initial Troubleshooting

g. A2 Display - disconnect W10 h. AT1 Electronic Attenuator/RPP - disconnect W13

AT1 Mechanical Attenuator and A19 RPP (Option UNB) - disconnect W13 and

A19W1 i. A25 Pulse Modulator (Option 1E6) - disconnect A25W1 j. B1 Fan - disconnect B1W1 (disconnect only temporarily) k. B2 Fan - disconnect B2W1 (disconnect only temporarily) l. A9 Output Board m.A11 Reference Board n. A23 Sampler Board o. A24 Frac-N/Divider Board p. A22 YIG Driver Assembly - disconnect W35

NOTE Refer to Chapter 4, “Replaceable Parts (ESG-AP and ESG-DP Series),” for

information on locating assemblies. Refer to Chapter 5, “Assembly

Replacement,” for information on removing or disconnecting assemblies.

3. Switch on the signal generator and check the voltage supply LEDs (see Figure 1-3). If the LEDs are lit, you have likely identiﬁed the failed assembly. If one or more LEDs are still off, switch off the signal generator and replace/reconnect the assembly and repeat this procedure.

1-20 Service Guide

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