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GE Discovery LS User Manual

GE Discovery LS
358 pages
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GE Healthcare
OPERATING DOCUMENTATION
2307224-100
Rev 6
Discovery LS
System Service Manual

Table of Contents

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GE Discovery LS Specifications

General IconGeneral
TypePET/CT Scanner
ManufacturerGE Healthcare
CT Detector Rows16
Detector TypeSolid-state
Field of View50 cm
Patient Weight Capacity204 kg (450 lbs)
Gantry Aperture70 cm
TechnologyPET/CT
Slice Thickness0.625 mm to 10 mm
Scan TimeVariable, depending on protocol

Summary

Chapter 1 Preface

Section 1.4 Required Skill Set and Tools

Details the essential skills and tools required for system installation and service.

Section 1.5 System Lock-Out and Tag-Out (LOTO)

Provides critical safety procedures for disconnecting power and energy sources.

Chapter 2 Discovery LS System Safety Information

Section 2.1 CT System Safety

Covers safety procedures and considerations specific to the CT component.

Section 2.2 Normal CT System Operational Safety

Details operational safety guidelines when all system covers are in place.

2.2.1 Potential Hazards

Identifies primary hazards like X-rays and laser alignment lights.

2.2.2 Safety Awareness Indicators

Explains various labels, lights, and lamps used to promote safety awareness.

2.2.3 Emergency Switches, Buttons and Locks

Describes the function and use of E-Off, E-Stop, and latching mechanisms.

Section 2.3 CT Equipment Service

Provides safety guidelines for servicing CT equipment, including hazards.

2.3.1 CT Gantry

Details general safety aspects and electrical hazards within the CT gantry.

2.3.1.1 CT Gantry General

Covers safety precautions when working with the gantry, emphasizing electrical hazards.

2.3.1.2 CT Gantry Electrical

Highlights electrical hazards and necessary precautions for the CT gantry.

2.3.1.3 Safety Awareness Indicators

Explains labels and indicators related to electrical hazards in the gantry.

2.3.1.4 Service Outlet

Describes the location and purpose of the service outlet.

2.3.1.5 Service Switches and Circuit Breakers

Lists and describes the gantry's service switches and circuit breakers.

2.3.2 CT Mechanical Hazards

Identifies mechanical hazards within the gantry that can cause personal injury.

Section 2.4 Chemicals and Materials

Covers safety precautions when handling chemicals and materials used in service.

Section 2.5 Table

Details electrical and mechanical hazards associated with the patient table.

2.5.1 Electrical Hazards

Highlights lethal voltages and potential electrical hazards on the table base.

2.5.2 Mechanical Hazards

Addresses mechanical hazards related to table touch sensors and operation.

2.5.3 Chemical Hazards

Emphasizes safety precautions for handling chemicals during service.

Section 2.6 Console (H3 or GOC1)

Describes the console's power switch and related safety information.

Section 2.7 Power Distribution Units

Details safety precautions for working with PDUs, including potential hazards.

2.7.1 Compact Power Distribution Unit (CPDU)

Explains CPDU features, hazards, and circuit breaker functions.

2.7.2 New Global Power Distribution Unit (NGPDU)

Describes NGPDU features, hazards, and circuit breaker functions.

Section 2.8 PET System Safety

Covers safety signal words, definitions, and labels for PET system components.

2.8.1 General

General safety information regarding signal words and label locations.

2.8.2 Safety Signal Definitions

Defines DANGER, WARNING, and CAUTION signals and their color coding.

2.8.3 Safety Labels

Illustrates and describes various safety labels found on the system.

2.8.3.1 Electrical Safety Labels

Details electrical hazard labels and their locations on the PDU and gantry.

2.8.3.2 Mechanical Motion Labels

Describes labels related to mechanical hazards like moving fans and parts.

2.8.4 Laser Related Labels

Illustrates and explains labels related to laser radiation hazards.

2.8.5 Radiation Safety Labels

Describes labels related to radioactive pin handling and dose rate increase.

Section 2.9 CT-PET System Safety

Covers safety aspects specific to the combined CT-PET system.

2.9.1 CT-PET Gantry Safety

Details safety measures for CT-PET gantry operations and movement.

2.9.2 CT-PET Table Safety

Highlights safety precautions for table movement and positioning.

2.9.3 CT-PET Safety Labels

Lists safety labels specific to the CT-PET system.

Chapter 3 DLS System Functional Description

Section 3.1 Introduction

Provides an overview of the Discovery LS system and its capabilities.

Section 3.2 CT Overview and Functionality

Describes the major components and functionality of the CT imaging system.

Section 3.3 PET Overview and Functionality

Details the subsystems and functionality of the Advance PET imaging system.

Section 3.4 Electrical Requirements

Specifies the electrical power requirements for both CT and PET systems.

Section 3.5 Patient Table

Describes the patient table's role in positioning for CT and PET acquisitions.

Section 3.6 PET Service Access

Explains how to access the PET gantry for service purposes.

Section 3.7 CT-PET LAN (Local Area Network)

Details the network architecture integrating CT and PET systems.

Section 3.8 E-Stop Safety

Describes the integrated hardware Emergency Stop circuit for CT and PET.

Section 3.9 Covers

Outlines the features and design of the system covers for protection and ventilation.

Section 3.10 System Start-Up

Provides a step-by-step guide for powering up the PET-CT system.

Section 3.11 System Shut-Down

Details the procedures for shutting down the PET-CT system and applications.

Chapter 4 Service Desktop, Tools and Diagnostics

Section 4.1 Service Desktop

An overview of the Service Desktop, its access, and home page.

4.1.1 Service Desktop Main Menu

Details the nine major functional tools available within the Service Desktop.

4.1.2 Service Desktop Functionality

Explains the differences in functionality for various user types and mouse functions.

4.1.3 Desktop Management

Describes how to change desktops and manage windows using Cleanup and Reset.

Chapter 5 Console

Section 5.1 CT-PET Console Functional Description

Details the three functional subsystems of the console: CT Host, SRU, and PET Workstation.

Section 5.2 Console Connections

Provides diagrams and descriptions of console component connections.

Chapter 6 Table

Section 6.1 CT-PET Table Functional Description

Describes the patient table's movement axes and functional components.

6.1.1 Table Overview

Provides an overview of patient table movement and configurations.

6.1.2 Manual Table Functional Description

Details the parts of the manual CT-PET table assembly.

Section 6.2 Manual Table

Provides instructions for upgrading a manual table to an automated version.

6.2.1 Prerequisites

Lists the necessary FMIs and software requirements before starting the upgrade.

6.2.3 Pre-Mechanical Installation

Details steps to prepare the system for the table base upgrade.

6.2.4 Mechanical Installation

Provides step-by-step instructions for mechanical installation procedures.

6.2.4.1 Remove the Table Covers

Instructions on how to remove metal and side elevator covers from the table.

6.2.4.2 Remove the Base Cover Brackets

Details the removal of cover brackets from the ETC chassis.

6.2.4.3 Install the Mechanical Stop Assembly

Instructions for installing the mechanical stop assembly on the secondary base.

6.2.5 Remove the Manual Control Hardware

Steps to remove KB Box, cables, pedal assembly, and switches.

6.2.6 Install the Automated Base Hardware

Detailed instructions for installing new hardware for the automated table base.

6.2.6.1 Drill and Tap the Right Secondary Base Rail

Procedure for drilling and tapping holes based on the secondary base rail revision.

6.2.6.2 Determine the Right Secondary Base Rail Revision

Guides on determining the secondary base rail revision by counting access holes.

6.2.6.3 Attach the CT Template and Drill the Hole(s)

Instructions for attaching the CT template and drilling holes for rail attachment.

6.2.6.4 Determine the PET Detent Location

Procedure to determine PET detent location based on scan plane distances.

6.2.6.5 Attach the PET Template and Drill the Standard PET Detent Holes

Steps for attaching the PET template and drilling detent holes.

6.2.6.6 Fasten PET Detent Offset Template (P/N 2371258) to Revision 3 Rail

Instructions for fastening the PET detent offset template to Revision 3 rails.

6.2.6.7 Fasten the PET Detent Offset Template to the Revision 0, 1 or 2 Rail

Instructions for fastening the PET detent offset template to Revision 0, 1, or 2 rails.

6.2.6.8 Drill a New Set of PET Detent Holes 10mm Closer to the CT Detent

Procedure for drilling new PET detent holes closer to the CT detent.

6.2.6.9 Drill a New Set of PET Detent Holes 20 mm Closer to the CT Detent

Procedure for drilling new PET detent holes further from the CT detent.

6.2.6.10 Install the New Clutch Motor Assembly

Steps for installing the new clutch motor assembly.

6.2.6.11 Install the Table Bulkhead (If Necessary)

Instructions for installing the table bulkhead if required.

6.2.6.12 Install the Base Axis Motor I Cable (P/N 2323724)

Procedure for installing the base axis motor I cable.

6.2.6.13 Install the Clutch Control I Cable (P/N 2340390)

Procedure for installing the clutch control I cable.

6.2.6.14 Install Clutch Driver Unit (P/N 2340282)

Steps for installing the clutch driver unit, including bracket modification.

6.2.6.15 Install the Clutch Driver Unit Power Cable (P/N 2338088)

Procedure for installing the clutch driver unit power cable.

6.2.6.16 Attach the Ground Wire (P/N 2338084) to the Clutch Driver Unit

Instructions for attaching the ground wire to the clutch driver unit.

6.2.6.17 Replace the ETC Interface Board

Procedure for replacing the ETC interface board, emphasizing ESD precautions.

6.2.6.18 Install the Base CMD Adapter Cable (P/N 2338086)

Steps for routing and connecting the base CMD adapter cable.

6.2.6.19 Install the CT-PET Position Optical Sensor (P/N 2350570)

Procedure for installing the CT-PET position optical sensor.

6.2.6.20 Install the Base Driver Enable Ribbon Cable (P/N 2340386)

Instructions for installing the base driver enable ribbon cable.

6.2.6.21 Install Base CMD Adapter (P/N 2304737)

Steps for installing the base CMD adapter.

6.2.6.22 Attach Flanges (P/N 2320158) to the Secondary Base

Procedure for attaching cover flanges to the secondary base side rails.

6.2.6.23 Attach Clutch Motor Cables

Instructions for attaching the clutch motor cables to the bulkhead bracket.

6.2.6.24 Reassemble the Secondary Base Drive Belt

Steps for reassembling the secondary base drive belt.

6.2.6.25 Set the Table Position Pot

Procedure for setting up and securing the table position potentiometer.

6.2.6.26 Attach the CT-PET Position Latch Mounting Plate

Instructions for attaching the CT-PET position latch mounting plate.

6.2.6.27 Install the PET-CT Position Latch Assembly

Steps for installing the PET-CT position latch assembly.

6.2.6.28 Install the CT and PET Detent/Flag Assemblies

Procedure for installing CT and PET detents, including side rail access plugs.

6.2.6.29 If a PET Plug Is Required

Instructions for installing the PET plug into the rail for specific table revisions.

6.2.6.30 If a CT Plug Is Required

Instructions for installing the CT plug into the rail for Revision 0 tables.

6.2.6.31 Install the CT Detent and Flag Assembly

Procedure for installing the CT detent and flag assembly.

6.2.6.32 Install the PET Detent and Flag Assembly

Instructions for installing the PET detent and flag assembly.

6.2.6.33 Assemble and Install PET Detent Adjuster

Steps for assembling and installing the PET detent adjuster.

6.2.6.34 Shim the PET Detent Assembly

Procedure for determining and applying shims for detent assemblies.

6.2.6.35 Install Optical Sensor (P/N 2350570)

Instructions for installing the optical sensor, including routing and adjustment.

6.2.6.36 Align the Flag Plates to the Optical Sensor

Procedure for aligning flag plates to the optical sensor.

6.2.6.37 Install the Table Latch

Steps for installing the table latch assembly.

6.2.6.38 Adjust the Table Latch

Procedure for adjusting the CT-PET position assembly and table latch.

6.2.7 Install Table Secondary Base Covers

Instructions for attaching covers to the secondary base of the automated table.

6.2.7.1 Automated Table Cover Components

Lists the components of the automated table cover kit.

6.2.7.2 Table Cover and Bracket Task List

Provides an order for assembling lower table covers and brackets.

6.2.7.3 Install the Roller Cover Assembly

Steps for installing the roller cover assembly.

6.2.7.4 Attach the Roller Cover Guides to the Secondary Base Side Rails

Procedure for attaching roller cover guides to the secondary base side rails.

6.2.7.5 Attach the Cover Bracket to the Secondary Base

Instructions for attaching the cover bracket to the secondary base.

6.2.7.6 Reposition the Ground Bus Bar

Procedure for repositioning the ground bus bar for roller canister clearance.

6.2.7.7 Attach Canister Brackets to Head End of the Secondary Base

Steps for attaching canister brackets to the head end of the secondary base.

6.2.7.8 Attach the Drip Trough to the Roller Canister Assembly

Procedure for attaching the drip trough to the roller canister assembly.

6.2.7.9 Attach the Roller Cover Canister to the Secondary Base

Instructions for attaching the roller cover canister to the secondary base.

6.2.7.10 Install the Idler Roller and Align it to the Roller Cover Guides

Steps for installing and aligning the idler roller to the roller cover guides.

6.2.7.11 Fasten the Side Skirts to the Secondary Base

Procedure for fastening the side skirts to the secondary base.

6.2.7.12 Attach the Interface Cover Between the DLS Table and Gantry

Instructions for attaching the interface cover.

6.2.7.13 Fasten the Rear Covers to the Secondary Base

Steps for fastening the rear covers to the secondary base.

6.2.7.14 Attach the Top Cap Assembly to the Secondary Base

Procedure for attaching the top cap assembly to the secondary base.

6.2.7.15 Attach the Back Cap to the Foot End of the Secondary Base

Instructions for attaching the back cap to the foot end of the secondary base.

6.2.8 Finish the Mechanical Installation

Final steps to complete the mechanical installation.

6.2.9 Completion

Final procedures for Field Engineers including software patching and characterization.

6.2.10 Manual Table Wiring

Wiring diagrams for the manual table.

6.3 Troubleshooting Tips

Provides guidance on diagnosing and resolving common table operation issues.

6.3.1 Potentiometer Counts Differ

Troubleshooting steps for differing potentiometer counts.

6.3.2 CT-PET Position Latch Solenoid Fails to Engage

Troubleshooting for a CT-PET position latch solenoid that fails to engage.

6.3.3 Table Base or Cradle Unlatches

Troubleshooting steps when the table base or cradle unlatches unexpectedly.

6.3.4 Delta Z Not in Spec

Addresses issues where Delta Z is reported as not in specification.

6.3.5 Clutch Engages - Motor Does Not Spin

Troubleshooting for a clutch that engages but the motor does not spin.

6.3.6 Motor Spins - Clutch Does Not Engage

Troubleshooting steps when the motor spins but the clutch does not engage.

6.3.7 Gantry Does Not Run System Light Tests

Troubleshooting for gantry failure to run system light tests during initial power-up.

6.4 Procedures and Adjustments

General procedures and adjustments for table components.

6.5 Replacement Procedures

Guides for replacing key mechanical components of the table.

6.5.1 Replacing the Secondary Base Timing Belt

Step-by-step instructions for replacing the secondary base timing belt.

6.5.2 Replacing the Secondary Base Front Pulley

Procedure for replacing the secondary base front pulley.

6.5.3 Replacing the Secondary Base Motor

Instructions for replacing the secondary base motor.

6.5.4 Replacing the Secondary Base Motor Coupling

Procedure for replacing the secondary base motor coupling.

6.5.5 Replacing the Secondary Base Motor Clutch

Steps for replacing the secondary base motor clutch.

Chapter 7 Gantry

Section 7.1 CT-PET Gantry Functional Description

Describes the functional description of the CT-PET gantry.

7.1.1 Mechanical Description

Details the mechanical build of the Discovery LS gantry.

7.1.2 PET Gantry Field Upgrade Modifications

Lists changes introduced in the PET Advance Gantry for field upgrades.

7.1.2.1 Gantry Transport Mechanism

Explains the mechanism for moving the PET gantry to its service position.

7.1.2.2 Gantry-Table Cable Routing

Describes how cables are routed between the gantry and table for service life.

7.1.2.3 Gantry Covers

Information on the design and removal of system covers.

7.1.2.4 Moving the PET Gantry to Service Position

Details steps for moving the PET gantry to its service position.

7.1.2.5 System Calibration

Discusses mechanical and software techniques for image registration and calibration.

7.1.3 Electrical Description

Describes the electrical system of the CT and PET gantries.

Section 7.2 CT Gantry Field Replaceable Units (FRUs)

Lists FRUs for CT gantry components, referencing other manuals.

Section 7.3 CT Gantry Replacement Procedures

References replacement procedures for CT gantry components.

Section 7.4 PET Gantry Field Replaceable Units (FRUs)

Lists FRUs for PET gantry components, referencing other manuals.

Section 7.5 PET Gantry Replacement Procedures

Provides procedures for replacing PET gantry components.

7.5.1 PET Gantry Drive Mechanism Replacement (P/N 2290248)

Detailed steps for replacing the PET gantry drive mechanism.

7.5.2 Gantry Cables or Retractor Replacement

Instructions for replacing gantry cables or retractors.

7.5.2.1 Replacing the External Retractor or its Cables

Procedure for replacing the external retractor and its associated cables.

7.5.2.2 Replacing the Internal Retractor or its Cables

Instructions for replacing the internal retractor and its associated cables.

7.5.4 Replacement of the Short Positioning Pin (P/N 2287052)

Procedure for replacing the short positioning pin.

Section 7.6 Procedures and Adjustments

Details general procedures and adjustments for the PET gantry.

7.6.1 Removing the Covers for PET Gantry Service Movement

Instructions for removing covers to access PET gantry for service.

7.6.2 Activating the Driving Mechanism

Procedure for activating the driving mechanism to move the PET gantry.

Chapter 8 System QC, Calibration and Functional Tests

Section 8.1 System QC

Covers system quality control procedures.

8.1.1 CT-PET Volumetric Calibration and Quality Control Procedure (VQC)

Details the steps for CT-PET Volumetric Calibration and Quality Control (VQC).

8.1.1.1 Initial Table Alignment

Prerequisite step for VQC: initial alignment of the table's secondary base.

8.1.1.2 Reset the Software Alignment Parameters

Procedure to reset software alignment parameters to default values.

8.1.1.3 Positioning the VCQ Phantom

Instructions for correctly positioning the VQC phantom for calibration.

8.1.1.4 Scanning and Reconstructing the VQC Phantom

Steps for scanning and reconstructing the VQC phantom.

8.1.1.5 VQC Processing and Software Realignment

Details VQC processing and software realignment steps.

8.1.1.6 Mechanical Alignment Table

Provides information on mechanical adjustments for image alignment.

8.1.1.7 Options

Lists available functions accessible via the Options button.

8.1.2 Table and Gantry Alignment Procedure

Covers table and gantry alignment adjustments based on calibration data.

8.1.2.1 .Aligning the Table

Procedure for aligning the table according to the Gantry Alignment Table.

8.1.2.2 Gantry Alignment Prerequisites

Steps to perform before starting gantry alignment procedures.

8.1.2.3 Preparing the Gantry for Adjustment

Instructions for preparing the gantry for alignment adjustments.

8.1.2.4 Aligning the Gantry

Detailed steps for aligning the gantry and base plates.

Chapter 9 Planned Maintenance (PM)

Section 9.1 Maintenance of Mechanical Components

Describes maintenance procedures and frequencies for mechanical components.

9.1.1 Lubrication of PET Gantry Driving Mechanism

Details lubrication procedures for PET gantry driving mechanism components.

9.1.1.1 Overview of Maintenance and Lubrication Procedure

Provides an overview of the maintenance and lubrication steps.

9.1.1.2 Quantity and Frequency of Lubrication

Specifies the amount and frequency for lubricating components.

9.1.1.3 Lubrication Kit

Lists the contents of the lubrication kit.

9.1.1.4 Greasing the PET Gantry Linear Bearings

Instructions for greasing the PET gantry linear bearings.

9.1.1.5 Greasing the High Load Rollers Linear Guide

Procedure for greasing the high load rollers linear guide.

9.1.1.6 Greasing the Secondary Base Linear Bearings

Instructions for greasing the secondary base linear bearings.

9.1.2 Checking the Timing Belts Adjustments and Tightness

Guidance on checking timing belts for adjustment and tightness.

Section 9.2 Maintenance of Cables and Connectors

Details maintenance procedures for cables and connectors.

Chapter 10 Electrical Connections

Section 10.1 Power and Data Cables Checklist

Provides tables listing cables connecting Discovery LS subsystems.

10.1.1 CT Electronics Cabinet

Lists cables connecting to the CT Electronics cabinet.

10.1.2 PET Electronics Cabinet

Lists cables connecting to the PET Electronics cabinet.

10.1.3 Discovery LS Console

Lists cables connecting to the Discovery LS console.

10.1.4 Table Retractor Cables

Details cables for manual table retractors.

10.1.5 Secondary Base Cables

Lists cables for manual and automated secondary base components.

10.1.6 CT Gantry Cables

Lists cables connecting to the CT Gantry.

Section 10.2 PET Gantry

Lists cables connecting to the PET Gantry.

Section 10.3 Wiring Diagrams

Provides essential wiring diagrams for system components.

10.3.1 Grounding Connections

Details grounding cable connections for manual and automated tables.

10.3.2 CT Cable Connections

Illustrates CT system cable connections.

10.3.3 PET Cable Connections

Shows PET system interconnections and cable routing.

Section 10.4 E-Stop Wiring

Provides wiring diagrams for the Emergency Stop system.

Chapter 11 Replacement Parts

Section 11.1 PET Gantry

Lists replacement parts for the PET Gantry.

Section 11.2 Table

Provides part lists for the table assembly.

11.2.1 Secondary Base Covers

Lists the part numbers for secondary base covers.

11.2.2 Secondary Base Components

Lists the part numbers for various secondary base components.

11.2.3 Table Retractor Components

Lists the part numbers for table retractor components.

11.2.4 Secondary Base Cables

Lists the part numbers for secondary base cables.

Section 11.3 Covers

Provides a general view of the system covers.

11.3.1 Cover Sections and Components

Details the sections and components of the gantry covers.

Section 11.4 Brackets for the Covers - Required Parts

Lists required parts, specifically brackets for the covers.

11.4.1 Brackets

Lists various brackets used for cover assembly.

Section 11.5 Assembling the Covers

Provides a step-by-step guide for assembling the system covers.

Chapter 12 Troubleshooting

Section 12.1 System Software Operation Issues

Lists and resolves problems related to system software operation.

Section 12.2 Manual Table Operation Issues

Addresses common problems encountered during manual table operation.

12.2.1 Clutch Fails to Engage/Disengage

Troubleshooting steps for clutch engagement/disengagement issues.

12.2.2 Base Axis Does Not Move

Diagnoses and suggests actions for when the base axis fails to move.

12.2.3 Base Axis Moves Constantly

Troubleshooting for base axis movement that occurs constantly.

12.2.4 Base Axis Moves in One Direction Only

Addresses issues where the base axis only moves in a single direction.

12.2.5 Base Axis Does Not Stop at the Limit Switch and Collides with Mechanical Stopper

Troubleshooting for base axis collision with mechanical stoppers.

12.2.6 Base Axis Stops at Limit Switch, But Workstation Displays Message: Move Table to CT Position

Addresses issues where base axis stops at limit switch but workstation prompts movement.

Section 12.3 Automated Table Operation Issues

Troubleshooting for problems encountered during automated table operation.

12.3.1 Clutch Fails to Engage/Disengage

Troubleshooting steps for clutch issues on automated tables.

12.3.2 Base Axis Does Not Move

Diagnoses and suggests actions for base axis movement failure.

12.3.3 Base Axis Movement Malfunction

Troubleshooting for malfunctions in base axis movement.

12.3.4 Base Axis Does Not Stop at the PET or CT Positions

Addresses issues where base axis fails to stop at PET or CT positions.

12.3.5 Digits Disappear from Gantry Display

Troubleshooting for issues with digits disappearing from the gantry display.

Section 12.4 Extended Cradle Table Operation Issues

Troubleshooting for problems related to the extended cradle table operation.

12.4.1 Clutch Fails to Engage/Disengage

Troubleshooting steps for clutch issues on the extended cradle table.

12.4.2 Base Axis Does Not Move

Diagnoses and suggests actions for base axis movement failure on extended cradle.

12.4.3 Base Axis Movement Malfunction

Troubleshooting for base axis movement malfunctions on extended cradle.

12.4.4 Base Axis Does Not Stop at the PET or CT Positions

Addresses base axis stopping issues at PET/CT positions on extended cradle.

12.4.5 Digits Disappear from Gantry Display

Troubleshooting for disappearing digits on the gantry display.

Section 12.5 CT-PET Communication Difficulties Due to NULL Modem Cable

Troubleshooting communication issues related to NULL modem cables.

Appendix A Illustrated Parts Breakdown

Section A.1 System Drawings

Provides system drawings for the Discovery LS gantry assembly.

Section A.2 Part Lists

Lists part numbers for gantry, cables, base casting, and driving mechanism.

A.2.1 Gantry and Cables

Details mechanical parts and cables for the DLS Gantry.

A.2.2 Base Casting

Lists components of the Base Casting Assembly.

A.2.3 Legs

Lists components for the Discovery LS Support Legs Assembly.

A.2.4 Linear Bearings

Lists components for the Discovery LS Linear Bearing Assembly.

A.2.5 Driving Mechanism

Lists parts for the Discovery LS Driving Mechanism Assembly.

A.2.6 Cabling

Lists parts for the Discovery LS Cabling Assembly.

Appendix B System Calibration Quick Guide

Section B.1 Daily Calibrations

Provides guidelines for essential daily calibration procedures.

Section B.2 Weekly Calibrations

Outlines procedures for weekly calibration tasks.

B.3 Three Monthly Calibrations

Lists calibration procedures required every three months.

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