Service Manual
AWG2005                
Arbitrary Waveform Generator
www.tektronix.com            
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               Se
WG                
  $  WG  
              Modules
Safety              
Table of Contents
              Theory of Operation
Clock Oscillator (A1 Clock Board)                
Clock Sweep Oscillator (A31 Clock Sweep Board)
Sequencer (A2 AWG Board)                
Waveform Memory (A2 AWG Board)
              Adjustment Procedures
5;1                
Maintenance
6;1                
6;2
              6;7
Cleaning Procedure<Interior                
6;8
6;9                
6;10
              Electrical Parts List
8,1                
Diagrams
9,1                
Mechanical Parts List
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              List of Figures
              Figure 6A6:@Line Fuse and Line Cord Removal
Figure 6A8:@Front Cover, Trim Ring, and Menu Button Removal                
Figure 6A11:@Disassembly of FrontApanel Module
Figure 6A16:@Rear BNC Connectors Removal                
Figure 6A17:@Power Supply Module Removal
              Figure 748:3Waveform Reproduction Circuit Example
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              List of Tables
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              General Safety Summary
Injury Precautions                
Use Proper
Power Cord                
Avoid Electric
              Product Damage Precautions
Power Source                
Provide Proper
Ventilation                
Do Not Operate With Suspected Failures
              Certifications and Compliances
CS Certified Power Cords              
xv
              Service Safety Summary
Do Not Service lone                
Disconnect Power
Use Caution When Servicing the CRT                
Use Care When
              xv
              Introduction
              Wrrnty Repir Service
Repir or Clibrtion Service                
Self Service
              Product Description
              12
              Nominal Traits
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              Table11: Period Jitter (CH1 Marker Out)
Clock=20MS/s                
Clock=10MS/s
Table12: Cycle to Cycle Jitter (CH1 Marker Out)                
Table13: Period Jitter (Clock Out)
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              110
              Warranted Characteristics
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              118
              Typical Characteristics
              Certifications and compliances
Category                
Standards or description
EMC                
Communities:
              Certifications and compliances (cont.)
              122
              Preparation for Use
Operating Temperature                
Ventilation Requirements
              Supplying Power
WARNING                
Power Cord Information
Figure 2$1:#Optional Power Cords              
Rear Panel Controls
which the AWG25 operates                
Figure 2!2 shows the rear panel controls for the AWG25
2+3              
Fuse Type and Rating
              Power on Cycle
Power off Cycle              
Memory Backup Power
              Instructions for Operation
              User Interface
Display                
Status Area
Date & Time Display                
Error Display Area
              Button Operation
Knob Icon                
Message rea
Bottom Menu              
Figure 23:Display Features
2"10              
Menus
Waveform Files                
SETUP Menu
MODE Menu                
EDIT Menu
              Waveform Storage
and I/O                
Loading Files
              Setting Output Parameters
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              Operation Mode Settings
              Triggered Mode
Gated Mode                
Waveform dvance Mode
              Autostep Mode
              Slope
Polarity (Gated Mode)                
Level
              Theory of Operation
Clock Oscillator (A1 Clock Board)                
Clock Sweep Oscillator (A31 Clock Sweep Board)
Sequencer (A2 AWG Board)                
Waveform Memory (A2 AWG Board)
              Digital(to(Analog Converter (DAC) (A11 D/A Board)
Analog Processing (A3/A23 Analog Board)                
CPU and Memory (A6 CPU Board)
GPIB (A6 CPU Board)                
RS(232(C (A6 CPU Board)
              Display Monitor
Front Panel (A12 Key Board)                
Floppy Disk Drive
Low Voltage Power Supply                
Fan
              Option : CH3 and CH4 Output Channels
Option 4: Digital Data Out                
Option 9: Floating Point Processor
              Before Verification
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              Self Tests
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              Calibration
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              erformance Tests
              Related Information
Equipment Required              
Performance Check Files
              Table(4*3:)File List for Performance Check Disk
EDIT Menu                
SETUP Menu
No                
File Name
              Table.403:/File List for Performance Check Disk (Cont.)
No                
File Name
Usage              
Check Cont Mode
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              Check Triggered Mode
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              Check Gated Mode
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              Check Waveform Advance Mode
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              Check utostep Mode
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              Check External AM Operation
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              Check Internal AM Operation
Check External ADD Operation              
Check Internal Add Operation
              Check Clock Frequency Accuracy
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              Check Clock Amplitude
              Gain ccuracy Check
Electrical Characteristic Checked: Main Output, Amplitude, DC Accu9            
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              Offset Accuracy Check
Electrical Characteristic Checked: Main Output, Offset, Accuracy, on            
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              Pulse Response Check
Electrical Characteristic Checked: Main Output, Pulse Response, on            
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              MARKER OUT
Amplitude Check                
Electrical Characteristic Checked: Auxiliary Output, MARKER, Ampli8
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              CONTROL SIG OUT Amplitude Check
Electrical Characteristic Checked: Auxiliary Output, CONTROL SIG              
External Trigger Level
Accuracy Check            
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              External CLOCK IN Check
Electrical Characteristic Checked: Auxiliary Input, CLOCK, Threshold            
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              Optional Check
Master-Slave                
Operation Check
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              DIGITAL DATA OUT Check (Option 04)
Electrical Characteristic Checked: Auxiliary Output, DIGITAL DATA            
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              Floating Point Processor Check (Option 09)
Equipment Required: None              
450
              djustments
              52
              Before Maintenance
              Precautions
Susceptibility to ESD              
Table3651:4Relative Susceptibility to Static5discharge Damage 
Semiconductor Classes                
Relative
Susceptibility                
Levels1
              64
              Inspection and Cleaning
              Inspection#Exterior
              Cleaning Procedure,Exterior
Inspection,Interior              
Cleaning Procedure&Interior
Lubrication              
Removal and Installation Procedures
List of Mechanical Parts              
Geeral Istructios
Summary of Procedures                
Equipmet Required
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              AWG25 Orientation
              Access Procedure
Figure 6 :Guide to Removal Procedures              
Figure 63:Externl Modules
6'14              
Figure 6!4: Internal Modules
              Procedres for Exernal Modles
              Front#panel Knob
              Line Fuse and Line Cod
              Figure 6"6:!Line Fuse and Line Cord Removal
              Rear Coer and Cabine
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              EMI Gaskets
Front Cover, Trim Ring, and Menu Buttons              
Figure 6)8:(Front Cover, Trim Ring, and Menu Button Removal
(FrontCover not Shown)                
6)23
              Fronpanel Modle
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              Procedures for Internal Modules
              A23 Analog Board or A3 Analog Board (Option 02)
              Figure 612:A23/A3 Analog Board Removal
630              
Connector Module
              Figure 613:Connector Module Removal
632              
Fan and Fan Frame
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              Rear Shield Cover
              Figure 615:Rear Shield Cover Removal
6*36              
Rear BNC Connectors
              Power Spply Modle
              AUX Power Board and AC Inlet
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              Monito Module and CRT Fame
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              Circuit Boards
              Figure 61:Board Removal
c.Grasp the upper part of the A6 CPU board, and pull upward to remove it            
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              Backplane Board
              Figure 622:A5 Backplane Board Removal
650              
Lithium Battery
              Figure 6#23:"Battery Location on the A Backplane Board
652              
Floppy disk Drive Module
              Figure 624:Floppydisk Drive Module Removal
              Repackaging
              656
              Troubleshooting
              Checking Diagnostics Tests
              Figure 6":!Primary Troubleshooting Procedure
              Figure 626:CPU Board
660              
Figure 6%27:$Troubleshooting Procedure 1& Power Supply Module
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              Figure 6%3:$Troubleshooting Procedure & A6 CPU Board or Front%panel Module
              Figure 631:Key Bord
664              
Figure 6!3: Troubleshooting Procedure 3" Monitor Module
              Figure 633:Monitor Module
Figure 634:Horizontal and Vertical Sync Signals                
666
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              Figure 636:Troubleshooting Procedure 4 Module Isolation
668              
Options and Accessories
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              Option 5
Option 9                
Option 1R
Option 1S              
Standard Accessories
Optional Accessories            
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              712
              Electrical Parts List
              82
              Dgrms
              92
              A25
A31                
A2 AWG
A11 D/A                
A6 CPU
              94
              A12
Figure 9:Interconnect Diagram              
96
              Parts Ordering Information
Part Number Revision                
Level
              Using the Replaceable Mechanical Parts List
Abbreviations                
Chassis Parts
Mfr. Code to Manufacturer                
Cross Index
              Manufacturers Cross Index
Mfr                
Code
Manufacturer                
Address
              104
              Figure 11:Cabinet
              106
              Figure 1!2: Main Chassis and CRT
              108
              Figure 1"3:!Main Chassis and Circuit Boards
              1010
              Figure 1"4:!Circuit Boards
              1012
              Figure 1!5: Front Panel Assembly
              1014
              Figure 1!6: Option 2
              Figure 17:Option 4
1016              
Figure 1!8: Option 5
              Figure 19:Option 9
1018            
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