Hologic DISCOVERY A Manuals

Manuals and User Guides for Hologic DISCOVERY A. We have 1 Hologic DISCOVERY A manual available for free PDF download: Technical Manual

Hologic DISCOVERY A Technical Manual

Hologic DISCOVERY A Technical Manual (274 pages)

FAN BEAM X-RAY BONE DENSITOMETER

Brand: Hologic | Category: Medical Equipment | Size: 4 MB

Table of Contents

Table of Contents
3
Chapter 1 - INTRODUCTION

9
- System Overview
  9
- X-Ray Scanning Principles
  10
- Functional Overview
  12
- Product Specifications
  18
- Exam Mode(S) Performance
  20
- Duty Cycle
  21
- Leakage Technique Factors
  21
- Minimum Beam Filtration
  21
- Measured Half Value Layer (HVL) at Different Operating Potentials
  21
- Line Voltage and Maximum Line Current
  21
- Technique Factors for Maximum Line Current
  21
- Maximum Deviation
  22
- Measurement Criteria for Technique Factors
  22
- Functional Description
  23
- Computer
  23
- PCI Communications Controller Board
  23
- Interface Connections
  23
- Distribution Board
  25
- Power
  25
- Interface Connections
  26
- Motor Controller Board
  27
- Power
  27
- Interface Connections
  28
- TZ Drive Board (a and SL Only)
  28
- Service Switches
  29
- Power
  29
- Interface Connections
  30
- Control Panel Controller Board
  32
- Power
  32
- Interface Connections
  32
- C-Arm Interface Board
  34
- Continuity Daisy Chain
  35
- Power
  35
- Interface Connections
  35
- X-Ray Controller Assembly (P/N 010-1273)
  38
- Interface
  38
- X-Ray Controller Board
  40
- X-Ray Source Unit
  41
- Data Acquisition System (C, W, and SL)
  42
- Solid State Detector
  42
- Integrator/Multiplexor Subsection
  42
- Analog to Digital Board
  43
- Power
  43
- Interface Connections
  43
- Data Acquisition System (a Model Only)
  45
- Solid State Detector
  45
- Power
  45
- Interface Connections
  45
- Integrator/Multiplexor Board
  46
- Power
  47
- Interface Connections
  47
- Analog to Digital Board (a Model Only)
  49
- Power
  49
- Interface Connections
  49
- Torroid Power Module and DIN Rail
  51
Chapter 3 - INSTALLATION

53
- Pre-Installation Requirements
  53
- Required Tools
  53
- Required Documentation
  53
- Room and Doorway Size
  54
- Arrange for Help
  58
- Uncrate and Move to Destination
  58
- Inspect for Shipping Damage
  58
- Uncrate Unit
  59
- Take Inventory
  60
- Measure Path to Final Destination
  60
- Remove Tabletop (if Necessary)
  61
- Remove Discovery a or SL Lower C-Arm Assembly (if Necessary)
  62
- Prepare the Tabletop for Moving (A, W,Wi)
  64
- Move Unit to Destination
  64
- Set up the Unit
  68
- Install the System
  70
- Install Cables
  70
- Check Power Line Voltage
  75
- Install Computer
  76
- Start QDR Software in Service Mode
  76
- Check Table Alignment
  77
- Perform C-Arm Parallelism Adjustment (a and SL Systems Only)
  79
- Calibrate and Test the System
  80
- Check Tube Kv Peak Potential
  80
- Check Tube Current
  82
- Adjust Belt Tension
  84
- Calibrate Motors
  85
- X-Ray Beam Alignment
  99
- Calibrate Aperture (Cannot be Run on CI and Wi Models)
  105
- Check Laser Positioning Offset
  106
- A/D Gain Control Adjustment
  106
- Check and Verify the A/D Gain
  106
- Adjust the A/D Gain
  107
- Perform Detector Flattening
  107
- Perform Lateral Alignment Test (a and SL)
  108
- Check HVPS/S (Tank) for Radiation Leakage
  110
- Calibrate for Area, BMD and BMC
  112
- Scan Thickness Measurement & Calibration (C and W)
  113
- Scan Thickness Measurement & Calibration (a and SL)
  113
- Calibration of Area and BMC, for Array Scan Modes
  114
- RECALYZE and Add Array AP Scans to the QC Database
  115
- Install Software Options
  116
- Test Scan Modes
  116
- Finish Assembling Unit
  118
- Measure X-Ray Dose to Patient
  118
- Measure X-Ray Scatter from Phantom
  119
- Perform QC
  119
- Run Reproducibility Test
  119
- Instruments Using Body Composition Analysis (BCA)
  121
- Instruments Using BMD Whole Body Analysis
  122
- The Radiation Measurement Report
  122
- Alignment and Calibration
  123
- Check Table Alignment
  123
- Align the Table
  123
- Front to Back T-Rail and Table Edge/Rail Gap Adjustment
  125
- C-Arm Parallelism Adjustment
  125
- X-Ray Beam Alignment
  126
- Aperture Calibration
  131
- Motor Calibration
  132
- Laser Positioning Offset Adjustment
  148
- A/D Gain Control Adjustment
  148
- Check and Verify the A/D Gain
  149
- Adjust the A/D Gain
  149
- Filter Drum Encoder Alignment
  150
- Detector Flattening
  151
- Lateral Alignment Test (QDR 4500A and SL)
  152
- Instruments Using Body Composition Analysis (BCA)
  155
- Instruments Using BMD Whole Body Analysis
  155
- Check Phantom Values
  156
- Area, BMD, and BMC Calibration
  156
- Scan Thickness Measurement & Calibration (C and W)
  157
- Scan Thickness Measurement & Calibration (a and SL)
  158
- Calibration of Area and BMC, for Array Scan Modes
  159
- RECALYZE and Add Array AP Scans to the QC Database
  160
- Remove and Replace Procedures
  167
- Recommended Tools
  167
- Electronics Tray FRUS
  167
- Electronics Tray Printed Circuit Boards
  168
- C-Arm y Motor or Gearcase
  169
- C-Arm y Encoder
  170
- Control Panel (All Models)
  171
- Pcbs under Right-Side of the Table
  171
- Pedestal
  178
- The Linear Rotary String (Encoder)
  180
- Lower C-Arm FRUS
  182
- C-Arm Interface Board
  183
- X-Ray Controller Assembly
  184
- Filter Drum Assembly
  184
- Tank Assembly
  185
- Arm R FRUS (a and SL Only)
  187
- Motor Controller Board
  189
- Arm R Belt
  189
- Arm R Motor, Gearcase, Encoder or Encoder Belt
  190
- Gas Spring
  191
- Upper C-Arm FRUS
  191
- Detector Assembly A, SL, W, C Systems
  192
- Detector Assembly C1 and Wi Systems
  193
- Laser Assembly
  195
- Analog to Digital Converter Board (a Model Only)
  196
- Aperture Assembly FRUS
  197
- Aperture Stepper Motor
  197
- Aperture Motor PCB
  198
- Aperture Position Belt
  198
- Rotary Potentiometer
  199
- Drum Assembly FRUS
  200
- Drum Encoder PCB
  200
- Drum Belts
  202
- Stepper Motor Assembly
  203
- Drum Bearings
  203
- Replacing EMI Cables
  206
- FRU Lists
  207
Chapter 6 - FAULT ISOLATION

213
- Before Starting
  213
- Software Configuration
  213
- Hardware Configuration
  213
- Power Problems
  213
- Motion Problems
  214
- Control Panel Problems
  217
- Display Problems
  217
- Vertical Stripe
  217
- Horizontal Stripe
  218
- Noise
  219
- No Display
  219
- Targeting/Laser Problems
  220
- Data Communications Problems
  220
- Area/Bmd/Bmc/CV Specification Problems
  221
- X-Ray Problems
  221
- No X-Rays
  221
- X-Ray Alignment Problems
  221
- X-Ray Beam Does Not Align Properly
  221
- System Fails X-Ray Beam Alignment Verification
  222
- Detector Flattening Problems
  222
- System Consistently Fails the Detector Flattening Procedure
  222
- Laser Problems
  223
- Oil Leakage
  224
- The Torque Specifications
  224
- Tank Top Cover Components and Screw Location
  224
- Tightening the Lexan Cup Screws
  225
- Tightening the Bladder Gasket Screws
  225
- Tightening the Transformer Seal Screws
  226
- Tightening the Tank Cover Gasket Screws
  226
- Miscellaneous Problems
  227
- Preventive Maintenance
  229
- Customer Preventive Maintenance
  229
- Field Service Preventive Maintenance
  229
- Guide Rail and Bearing Maintenance
  231
- Pcb Summary Information
  233
Chapter 9 - SOFTWARE TOOLS

237
- X-Ray Survey
  237
- Invoking X-Ray Survey
  237
- The Main Display
  238
- The Display Controls
  239
- Sqdriver
  245
- Sqverify
  246
- Sqkeypad
  246
Appendix A - ERROR MESSAGES

247

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