GE Discovery LS Manuals

Manuals and User Guides for GE Discovery LS. We have 1 GE Discovery LS manual available for free PDF download: System Service Manual

GE Discovery LS System Service Manual (358 pages)

Brand: GE | Category: Medical Equipment | Size: 14.55 MB

Chapter 1 Preface

33
- Table of Contents
  13
- Direction 2307224-100, Revision Discovery Ls System Service Manual
  32
Scope of this Manual

33
Manual Set

33
Referenced Documents

33
Required Skill Set and Tools

34
- Training Requirements (Skill Set Required)
  34
  - Tools Required
    35
  - Direction 2307224-100, Revision Discovery Ls System Service Manual
    35
System Lock-Out and Tag-Out (LOTO)

36
General Safety Guidelines

39
- General Safety Definitions
  39
  - IEC Symbols
    40
  - General Hazards
    41
  - General Electrical Hazards
    41
  - General Electrical Precautions
    41
  - General Unpacking Precautions
    41
  - General Installation Safety Measures
    42
Regulatory Information

42
- Standard Compliance
  42
Chapter 2 Discovery LS System Safety Information

43
CT System Safety

43
Normal CT System Operational Safety

43
CT Equipment Service

48
- CT Gantry
  48
  - CT Gantry General
    48
    
    Figure 2-10: CPDU Lock
    48
    
    CT Gantry Electrical
    49
    
    Figure 2-11: Gantry Slip-Ring Platter Cover
    49
    
    Figure 2-12: Gantry Electrical Hazard Labels
    50
    
    Safety Awareness Indicators
    50
    
    Figure 2-13: Gantry E-Stop and Service Outlets (Right Side of Gantry)
    52
    
    Service Outlet
    52
    
    Service Switches and Circuit Breakers
    52
    
    Figure 2-14: Location of STC Service Switches (Shown in off Position) and Leds
    53
    
    Gantry E-Stop
    54
    
    Power Pan Circuit Breaker
    54
- CT Mechanical Hazards
  54
Chemicals and Materials

58
- Slip-Ring Brush Dust and Debris
  58
- Clean-Up and Personal Hygiene
  59
  - Oils (Tube, Tank and Hydraulic)
    59
  - Lead
    59
  - Heat Sources
    59
Table

60
- Electrical Hazards
  60
  - Safety Awareness Indicators
    60
  - Service Outlet
    60
  - Switches
    60
  - Figure 2-18: Table Service Outlet and Safety Switches
    60
  - Figure 2-19: Table Switches
    60
- Mechanical Hazards
  61
  - Chemical Hazards
    61
Console (H3 or GOC1)

61
- Figure 2-20: Table Touch Sensor Jumpered out
  61
- Figure 2-21: H3 Console On/Off Power Switch (Front Cover Removed)
  61
Power Distribution Units

62
PET System Safety

66
- General
  66
  - Safety Signal Definitions
    66
  - Safety Labels
    67
  - Electrical Safety Labels
    67
    
    Mechanical Motion Labels
    71
- Laser Related Labels
  72
  - Radiation Safety Labels
    73
  - Thermal Hazard
    74
  - Rating Labels
    74
CT-PET System Safety

74
Chapter 3 DLS System Functional Description

79
Introduction

79
CT Overview and Functionality

79
- Figure 3-1: Discovery LS System
  79
- Pdu
  80
- Data Acquisition System
  80
  - Image Processor
    80
  - Stationary Computer and Axial Board
    80
  - On-Board Controller
    80
  - Axial Drive
    80
  - Slip-Ring Infrastructure
    81
PET Overview and Functionality

81
- Electronic Cabinet
  81
  - Magic
    81
  - Sharc
    81
  - Irection Evision Iscovery Ls System Ervice Anual
    81
  - Pdu
    81
- Gantry
  81
- Detector Ring
  82
- Pcu
  82
- Power Switch Box
  82
- Gantry Motion Control Board Rack
  82
Electrical Requirements

82
Patient Table

83
PET Service Access

83
CT-PET LAN (Local Area Network)

83
E-Stop Safety

89
Covers

89
System Start-Up

93
System Shut-Down

96
Chapter 4 Service Desktop, Tools and Diagnostics

103
Service Desktop

103
- Figure 4-1: Service Desktop Icon
  103
- Figure 4-2: Service Desktop Home Page
  103
- Service Desktop Main Menu
  104
- Figure 4-3: Utilities Area and Menu
  104
- Service Desktop Functionality
  105
- Desktop Management
  105
- Irection Evision Iscovery Ls System Ervice Anual
  105
- Figure 4-4: Systems Reset
  106
Chapter 5 Console

107
CT-PET Console Functional Description

107
Console Connections

109
- Figure 5-3: Console Block Diagram (H2 Shown)
  109
Chapter 6 Table

111
CT-PET Table Functional Description

111
- Manual Table Functional Description
  111
Manual Table

112
Troubleshooting Tips

215
- Potentiometer Counts Differ
  215
- CT-PET Position Latch Solenoid Fails to Engage
  216
  - Symptom
    216
  - Probable Causes and Suggestions
    216
- Delta Z Not in Spec
  216
- Clutch Engages - Motor Does Not Spin
  216
- Motor Spins - Clutch Does Not Engage
  216
- Gantry Does Not Run System Light Tests
  217
  - Symptom
    217
  - Probable Causes and Suggestions
    217
Procedures and Adjustments

217
Replacement Procedures

217
Chapter 7 Gantry

223
CT-PET Gantry Functional Description

223
- Mechanical Description
  223
- PET Gantry Field Upgrade Modifications
  223
  - Gantry Transport Mechanism
    224
  - Figure 7-1: Gantry Transport Mechanism
    224
  - Gantry-Table Cable Routing
    225
  - Gantry Covers
    225
  - Moving the PET Gantry to Service Position
    225
  - System Calibration
    225
  - Figure 7-2: Table Retractors
    225
- Electrical Description
  226
- Direction 2307224-100, Revision 6 Discovery Ls System Service Manual
  226
CT Gantry Field Replaceable Units (Frus)

226
CT Gantry Replacement Procedures

226
PET Gantry Field Replaceable Units (Frus)

226
PET Gantry Replacement Procedures

227
Procedures and Adjustments

241
- Removing the Covers for PET Gantry Service Movement
  241
  - Activating the Driving Mechanism
    241
  - Figure 7-23: Removing Covers - Illustration 1
    241
Chapter 8 System QC, Calibration and Functional Tests

243
System QC

243
- CT-PET Volumetric Calibration and Quality Control Procedure (VQC)
  243
Chapter 9 Planned Maintenance (PM)

259
Maintenance of Mechanical Components

259
Maintenance of Cables and Connectors

262
Chapter 10 Electrical Connections

263
Power and Data Cables Checklist

263
- CT Electronics Cabinet
  263
- PET Electronics Cabinet
  264
- Discovery LS Console
  265
  - Manual Table Retractor Cables
    266
  - Automated and Extended Table Retractor Cables
    267
- Secondary Base Cables
  268
  - Manual Table Secondary Base Cables
    268
  - Automated and Extended Table Secondary Base Cables
    268
Table

268
- CT Gantry Cables
  269
  - CT Gantry Cables - Manual Table
    269
  - CT Gantry Cables - Automated and Extended Table
    270
PET Gantry

271
- Grounding Connections
  272
Wiring Diagrams

272
E-Stop Wiring

285
- Figure 10-12: PET E-Stop Wiring
  285
- Figure 10-13: CT E-Stop Wiring
  286
Chapter 11 Replacement Parts

287
PET Gantry

287
Table

294
Covers

303
Brackets for the Covers - Required Parts

309
- Brackets
  309
- Accessories
  310
Assembling the Covers

310
Chapter 12 Troubleshooting

311
System Software Operation Issues

311
Manual Table Operation Issues

316
Automated Table Operation Issues

322
Extended Cradle Table Operation Issues

330
CT-PET Communication Difficulties Due to NULL Modem Cable

338
Appendix A

339
Illustrated Parts Breakdown

339
System Drawings

339
Part Lists

342
- Gantry and Cables
  342
- Base Casting
  342
- Legs
  343
- Linear Bearings
  343
- Driving Mechanism
  345
- Cabling
  346
Appendix B - System Calibration Quick Guide

347
Daily Calibrations

348
Weekly Calibrations

350
Three Monthly Calibrations

355

GE Categories

GE Discovery LS Manuals

GE Discovery LS System Service Manual (358 pages)

Table of Contents

Chapter 1 Preface

Scope of this Manual

Manual Set

Referenced Documents

Required Skill Set and Tools

System Lock-Out and Tag-Out (LOTO)

General Safety Guidelines

Regulatory Information

Chapter 2 Discovery LS System Safety Information

CT System Safety

Normal CT System Operational Safety

CT Equipment Service

Chemicals and Materials

Table

Console (H3 or GOC1)

Power Distribution Units

PET System Safety

CT-PET System Safety

Chapter 3 DLS System Functional Description

Introduction

CT Overview and Functionality

PET Overview and Functionality

Electrical Requirements

Patient Table

PET Service Access

CT-PET LAN (Local Area Network)

E-Stop Safety

Covers

System Start-Up

System Shut-Down

Chapter 4 Service Desktop, Tools and Diagnostics

Service Desktop

Chapter 5 Console

CT-PET Console Functional Description

Console Connections

Chapter 6 Table

CT-PET Table Functional Description

Manual Table

Troubleshooting Tips

Procedures and Adjustments

Replacement Procedures

Chapter 7 Gantry

CT-PET Gantry Functional Description

CT Gantry Field Replaceable Units (Frus)

CT Gantry Replacement Procedures

PET Gantry Field Replaceable Units (Frus)

PET Gantry Replacement Procedures

Procedures and Adjustments

Chapter 8 System QC, Calibration and Functional Tests

System QC

Chapter 9 Planned Maintenance (PM)

Maintenance of Mechanical Components

Maintenance of Cables and Connectors

Chapter 10 Electrical Connections

Power and Data Cables Checklist

Table

PET Gantry

Wiring Diagrams

E-Stop Wiring

Chapter 11 Replacement Parts

PET Gantry

Table

Covers

Brackets for the Covers - Required Parts

Assembling the Covers

Chapter 12 Troubleshooting

System Software Operation Issues

Manual Table Operation Issues

Automated Table Operation Issues

Extended Cradle Table Operation Issues

CT-PET Communication Difficulties Due to NULL Modem Cable

Appendix A

Illustrated Parts Breakdown

System Drawings

Part Lists

Appendix B - System Calibration Quick Guide

Daily Calibrations