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Acuson Corporation Manuals
Medical Equipment
Aspen
Service manual
Acuson Corporation Aspen Service Manual
Ultrasound system
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
About this Manual
Preface
Other Aspen System Manuals
Chapter 1 Introduction and System Requirements
Introduction and System Requirements
Introduction to the Aspen System ]-2
Introduction to the Aspen System
Reviewing System Requirements ]-4
Reviewing System Requirements
Reviewing Environmental Requirements
Reviewing Electrical Requirements
Table 1-1 Input Power Values for Aspen System
Instrument Input Power Rating
Isolated Accessory Outlets
Leakage Current Limits
Figure 1-3 Circuit Breakers on Isolation Transformer Box
System Circuit Breakers
Using Input and Output Connectors ]-8
Using Input and Output Connectors
Table 1-3 Aspen System Front Panel Input and Output Connectors
Identifying Pcb Type, Version, and Revision
Caring for the System
Following Basic Precautions
Cleaning and Sanitizing the System
Cleaning Air Filters
Following Basic Precautions ]-12
Caring for Transducers ]-14
Caring for Transducers
Handling Transducers
Inspecting Transducers
About Transducer Manual
Attaching Peripherals
Servico Manual
Moving the System
Chapter 2 System Architecture
System Architecture
System Architecture
Amplitude
Frequency
Scanner
Ultrasound Basics
Figure 2-2. Scanner Control and Setup
Scanner Control
Figure 2-3 Scanner Transmit Block Diagram
Transmission
Reception
Figure 2-4 Scanner Reception Diagram
Figure 2-5 Gain and Processing Block Diagram
Figure 2-6 Scanner Doppler Processing
Gain and Processing
Doppler Processing
Figure 2-7 Scanner Board Location
Theory of Operation
Scanner Assemblies 2-]]
Figure 2-8. DL-Connector
DIMAQ Integrated Ultrasound Workstation
Figure 2-10. Basic Scan Conversion Principle
Data Path
Theory of Operation
Spectral Doppler Data Path
Figure 2-13 Spectral Doppler Data Path
Color Doppler Data Path
Color Doppler Data Path 2·27
Figure 2-14. Color Doppler Data Path
M-Mode Data Path
Figure 2-15 M-Mode Data Path
AEGIS System
Cine Operation
Figure 2-16 Aegis System Data Path
ECG and Physio Signal Processing
Audio 2·34
Figure 2-17 Audio Data Path
User Interface
Figure 2-18 Scan Converter DIMAQ Workstation Board Layout
DIMAQ Workstation Assemblies 2·36
Dlmaq Workstation Assemblies
ECG/ Physio Module
Power Subsystem 3·1
Service Manual
Chapter 3 Power Subsystem
Power Supply Architecture
Theory of Operation
Primary AC Wiring
Figure 3-1 AC Power Distribution
Power Configurations
Peripherals Power
System DC Power Distribution
Power Fail Signal
Figure 3-2 DC Distribution
Figure 3-3 Aspen System Power On/Off Sequence
Power up Sequence
Power off Sequence
Power Sub Assemblies
Main Power Supply
Figure 3-5. the Main Power Supply (Top and Side Views)
Figure 3-6 Programmable Power Supply
Programmable Power Supply
Isolation Transformer Box
Table 3-1 Scanner Power Supply Usage by Board
Power Usage
Removing and Replacing Field Replaceable Units (Frus)
Service Manual
Chapter 4 Removing and Replacing Field Replaceable Units (Frus)
Introduction to Removing and Replacing Frus 4·3
Exploded View System Drawings
Figure 4-1 Aspen System - Front View
Figure 4-2 Aspen System - Rear View
Scan Converter
Removing Side Cosmetic Panels
Installing Side Cosmetic Panels
Figure 4-5 Scan Converter with Cover
Figure 4-6 Scan Converter Without Cover
Removing the Scan Converter Cover
Installing the Scan Converter Cover
Removing Pcbs (Except Lob)
Installing Pcbs (Except Lob)
Removing Lob
Figure 4-7 View of Lob from the Rear of Aspen System
Installing Lob
Figure 4-8 View of Scan Converter with All Pcbs Removed
Removing Scan Converter Motherboard
Scanner
Installing Scan Converter Motherboard 4-]0
Scanner
Removing Scanner Pcbs (Except ZDL and ZIP)
Installing Pcbs (Except ZDL and ZIP) 4-]2
Installing Scanner Motherboard 4-]4
Figure 4-11. View of PPS and It's Location
Removing the Programmable Power Supply (PPS) 4-]5
Installing the Programmable Power Supply (PPS) 4-]5
Figure 4-12 View of Main Power Supply
Removing the Main Power Supply 4-]6
Figure 4-13 AC Box
Installing the Main Power Supply 4-]7
Removing the AC Box 4-]7
Removing the Isolation Transformer
Installing the Isolation Transformer
Power Subsystem
Monitor Assembly
Removing Monitor
Installing the Monitor
User Interface
Removing User Interface Assembly
Figure 4-17 User Interface and Mounting Screw Locations
Installing User Interface Assembly
Troubleshooting
Chapter 1 Chapter 5
System Troubleshooting
Technical Assistance
Symptom Type
Table 5-2 Causes of Failures
Quick Tips
Common Symptoms and Fixes
Table 5-4 Normal Operations
Table 5-5 Power Supply Troubleshooting Guide
Table 5-6 System Powers Itself down
Table 5-8 Video Failures
Table5-9 Format or Functional Problems
Table 5-10 System Lock-Up Problems
Table 5-12 Error Messages
Table 5-13 Examples of Scanner Error Messages
Table 5-14 Examples of DIMAQ Workstation Error Messages
System Diagnostics
Accessing Customer Menu
Chapter 6
The Customer Menu
Emergency Diagnostics Bypass
Technical Assistance
Service Manual
Chapter 7 Preventive Maintenance
Preventive Maintenance
Preliminaries
Preventive Maintenance
Initiating Cue
Interview the Operator
Visual Inspection
Basic Precautions
Cleaning and Sanitizing the System
Cleaning Air Filters
Mechanical Inspection
Monitor Assembly
Wheels and Locking Mechanism
Covers and Panels
User Interface
Electrical Verification
Following Basic Precautions
System Monitor Controls
Operational Verification
Cardiology Controls
AEGIS Digital Image and da Ta Management System
Peripherals Operation Verification
Customer Diagnostics
Entering Customer Diagnostics
Power on Diagnostics
Keyboard Functionality
Exiting Customer Diagnostics
Chapter 8 Parts List
Aspen System Acronym List
Table A-4. Scanner
Aspen System Parts List
Cables and Wire Harnesses
Power Cables
Standard Cable Assemblies
Ribbon Cables
Chassis Hardware
Air Filters
Manuals
Monitor Assembly
Peripheral Interface Cable Assemblies
Power Supplies
Printed Circuit Boards
Scanner Pcbs
Scan Converter Pcbs
Table A-2 Disk! Audio Box, DIMAQ Workstation
Table A-5 Scan Converter, DIMAQ Workstation
Table A-6. System Front
Table A-7 Casters
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Acuson Aspen™ Ultrasound System
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Service Manual
Acuson Corporation
1220 Charleston Road
Mountain View, CA 94039
(415) 969-9112
(800) 4·ACUSON
Part Number: 49881
Table of
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Chapters
Table of Contents
3
Chapter 1 Introduction and System Requirements
17
Chapter 2 System Architecture
35
Chapter 3 Power Subsystem
79
Chapter 4 Removing and Replacing Field Replaceable Units (Frus)
97
System Diagnostics
145
Chapter 7 Preventive Maintenance
153
Chapter 8 Parts List
167
Table of Contents
Troubleshooting
Troubleshooting
121
System Troubleshooting
122
Table 5-5 Power Supply Troubleshooting Guide
127
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