LORAD AFFINITY Series User manual

Form ENG-0034-T03, Rev. 001
Osteoporosis Assessment
LORAD©Breast Cancer Detection
DirectRay©Digital Imaging
FLUOROSCAN©C-arm Imaging
TITLE DOCUMENT NUMBER REV
MANUAL, AFFINITY
SERVICE
AW-00227 005
ARTWORK SIZE A SHEET 1OF 1
REV AUTHORED BY DATE
A. TAMBASCIO 7/24/2003
REV DRAFTED BY DATE
BILL MOSES 8/5/2003
PROPRIETARY: This document contains
proprietary data of Hologic, Inc. No
disclosure, reproduction or use of any
part thereof may be made except by
written permission from Hologic.
REV. RELEASE DATE:
8/14/03
3
Artwork and Signature File for:
9-500-0255 MANUAL, AFFINITY SERVICE
Artwork consists of:
•Two hundred and twelve (212) 8 ½ inch x11 inch pages.

Service Manual
for Affinity Series Mammography Systems
Part Number 9-500-0255
Revision 005

P/N 9-500-0255 i
Service Manual
Table of Contents
List of Figures ..................................................................................................... -vii
List of Tables ....................................................................................................... -ix
Preface .............................................................................................................. P-xi
1.0 Using the Service Manual ..................................................................................................... P-xi
1.1 Warnings, Cautions and Notes ...................................................................................... P-xii
2.0 Acronym List ........................................................................................................................ P-xii
Chapter 1: General Information .........................................................................1-1
1.0 Introduction ........................................................................................................................... 1-1
1.1 Intended Uses .................................................................................................................. 1-1
1.2 Required Tools and Equipment ........................................................................................ 1-2
2.0 Safety ..................................................................................................................................... 1-2
2.1 Electrical Safety ............................................................................................................... 1-2
2.2 Interlocks ......................................................................................................................... 1-3
2.3 Mechanical Safety ........................................................................................................... 1-3
2.4 Radiation Safety ............................................................................................................... 1-4
3.0 Unit Description .................................................................................................................... 1-5
3.1 Gantry and C-Arm ...........................................................................................................1-5
3.2 Control Panel .................................................................................................................. 1-7
4.0 Compliance Data ................................................................................................................... 1-8
4.1 Compliance Statement ..................................................................................................... 1-8
4.1.1 Remote Indication of the Ready State ........................................................................ 1-8
4.2 Certifiable Components ................................................................................................... 1-9
4.3 Location of Labels .........................................................................................................1-10

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Chapter 2: System Installation ........................................................................... 2-1
1.0 Room Planning .......................................................................................................................2-1
2.0 Unpacking Instructions ...........................................................................................................2-2
2.1 Receiving Instructions ......................................................................................................2-2
2.2 Un-Crating the Unit .........................................................................................................2-2
3.0 Unit Installation ......................................................................................................................2-4
3.1 Input Power Configuration ...............................................................................................2-4
3.2 Power Cable Connection .................................................................................................2-5
3.3 Remote X-ray ON/Power ON Light Connection ...............................................................2-6
3.4 Control Panel Installation .................................................................................................2-6
3.4.1 Control Panel to Gantry Installation ..........................................................................2-6
3.4.2 Control Panel Remote Location Installation ...............................................................2-7
3.5 Securing Unit in Position ..................................................................................................2-8
3.6 Installing the Unit Accessories ..........................................................................................2-8
3.6.1 Exposure Footswitch .................................................................................................2-8
3.6.2 Dual Function Footswitch(es) ....................................................................................2-9
3.6.3 Connecting Film Labeling Devices ..........................................................................2-10
3.7 Initial Start Up Procedures ..............................................................................................2-10
3.7.1 Remote X-ray ON Light Configuration .....................................................................2-10
3.7.2 Initial Power Up ......................................................................................................2-11
3.7.3 Setting Operational Parameters ...............................................................................2-11
3.8 Final Operational Setup .................................................................................................2-11
3.8.1 Installing the Radiation Shield .................................................................................2-12
Chapter 3: Functional Checks/Setting Defaults ................................................. 3-1
1.0 Controls and Indicators ...........................................................................................................3-1
2.0 System Power Up ...................................................................................................................3-2
2.1 Pre-Power Up Checks ......................................................................................................3-2
2.2 Power Up Sequence .........................................................................................................3-2
2.3 Post Power-Up Checks .....................................................................................................3-3
3.0 The Affinity Series Control Panel ............................................................................................3-8
3.1 Control Panel Screens ......................................................................................................3-9
4.0 Setting User Defaults ............................................................................................................3-13
5.0 Setting Exposure Technique Defaults ....................................................................................3-13

P/N 9-500-0255 iii
Service Manual
Chapter 4: Calibrations and Performance Checks ..............................................4-1
1.0 Introduction ........................................................................................................................... 4-1
2.0 Calibration Procedures ........................................................................................................... 4-1
2.1 Entering Calibration Mode ............................................................................................... 4-2
3.0 Compression System Calibration Procedures .......................................................................... 4-7
3.1 Compression Force Calibration ........................................................................................ 4-7
3.2 Compression Thickness Calibration ................................................................................. 4-8
4.0 Exposure System Calibration .................................................................................................. 4-9
4.1 Tube Voltage Calibration ................................................................................................. 4-9
4.2 Check mA Calibration ................................................................................................... 4-11
4.3 Filament Current (mA) Calibration ................................................................................. 4-11
4.4 Backup Timer Test ......................................................................................................... 4-15
5.0 Automatic Exposure Control System Calibration .................................................................. 4-16
5.1 AEC Detector Gain Calibration ...................................................................................... 4-17
5.2 AEC Detect Board—R1 Adjustment ............................................................................... 4-18
5.3 Initial Calibration—Large Focal Spot (Mo) ..................................................................... 4-18
5.4 kV Tracking—Large Focal Spot (Mo) .............................................................................. 4-19
5.5 Initial Calibration—Large Focal Spot (Rh) ...................................................................... 4-20
5.6 kV Tracking—Large Focal Spot (Rh) ............................................................................... 4-21
5.7 Starting AEC Values—Large Focal Spot .......................................................................... 4-21
5.8 Performance Test—Large Focal Spot (Mo) ..................................................................... 4-21
5.9 Performance Test—Large Focal Spot (Rh) ...................................................................... 4-22
5.10 Initial Calibration—Small Focal Spot (Mo) ................................................................... 4-23
5.11 kV Tracking - Small Focal Spot (Mo) ............................................................................ 4-24
5.12 Initial Calibration—Small Focal Spot (Rh) .................................................................... 4-24
5.13 Starting AEC Values - Small Focal Spot ........................................................................ 4-25
5.14 Performance Test - Small Spot (Mo) ............................................................................. 4-25
5.15 Performance Test - Small Spot (Rh) .............................................................................. 4-26
5.16 HTC Factor (Offset) Calibration ................................................................................... 4-27
5.17 Large Bucky (24 x 30 cm) Factor Calibration ............................................................... 4-27
5.18 Compression Thickness Threshold Adjustment ............................................................ 4-28
5.19 C-arm Safety Function Check ...................................................................................... 4-31
6.0 Performance Checks ............................................................................................................ 4-32
6.1 Half-Value Layer ...........................................................................................................4-32
6.2 Reproducibility and Linearity in Manual Mode .............................................................. 4-35
6.3 Reproducibility in Auto-Time Mode .............................................................................. 4-36
6.4 Reproducibility in Auto-kV Mode .................................................................................. 4-36
6.5 Reproducibility in Auto-Filter Mode .............................................................................. 4-36
6.6 Bucky Device Performance Check ................................................................................. 4-40
6.7 AEC Limits Performance Check ..................................................................................... 4-40
6.8 System Level Functional Check ..................................................................................... 4-41
6.9 Optical Density (Users Preference) Verification ............................................................. 4-41
6.10 IRSD Leakage Check ................................................................................................... 4-41
6.11 X-ray Tubehead Leakage Check ................................................................................... 4-42

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7.0 X-ray and Light Field Check and Alignment Procedures ........................................................4-44
7.1 X-ray Beam Alignment Template ....................................................................................4-44
7.2 Exposing and Viewing the X-ray Field ............................................................................4-45
7.3 Aperture Adjustment Procedures ....................................................................................4-46
7.4 Auto Aperture Alignment ...............................................................................................4-47
7.4.1 Align the 24 x 30 cm Large Focal Spot ....................................................................4-47
7.4.2 Align the 18 x 24 cm Large Focal Spot ....................................................................4-48
7.5 Magnification Full Field (18 x 24 cm) Aperture Alignment (SM FS) .................................4-50
7.6 10 cm Coned-down Contact Aperture Alignment (LG FS) ...............................................4-50
7.7 7.5 cm Spot Contact Aperture Alignment (LG FS) ...........................................................4-51
7.8 7.5 cm Spot Magnification Aperture Alignment (SM FS) .................................................4-51
7.9 X-ray Field Alignment Verification .................................................................................4-51
7.10 Light Field Alignment Check and Adjustment ...............................................................4-51
7.11 Light Field Edge Contrast Check ...................................................................................4-53
7.12 Light Field Illuminance Check ......................................................................................4-55
8.0 Mechanical Adjustments ......................................................................................................4-56
8.1 Compression Chain Tension Adjustment ........................................................................4-56
8.2 Compression Display Potentiometer Adjustment ............................................................4-57
8.3 Compression Force Load Cell Setting .............................................................................4-57
8.4 C-arm Safety Microprocessor Board Calibration/Vertical Drive Force Load Cell Setting ..4-58
9.0 Maintenance Procedures ......................................................................................................4-59
9.1 kV Control Offset Calibration .........................................................................................4-59
Chapter 5: Maintenance—General .................................................................... 5-1
1.0 Introduction ............................................................................................................................5-1
2.0 Preventive Maintenance .........................................................................................................5-1
3.0 Troubleshooting .....................................................................................................................5-2
3.1 Theory of Operation Overview ........................................................................................5-2
3.1.1 Operator Control Panel .............................................................................................5-2
3.1.2 Power Distribution ....................................................................................................5-3
3.1.3 System Control ..........................................................................................................5-3
3.1.4 Tubehead Functions ..................................................................................................5-4
3.1.5 X-ray Tube Control ....................................................................................................5-4
3.1.6 Mechanical Functions ...............................................................................................5-5
3.1.7 Exposure Control .......................................................................................................5-6
3.1.8 Automatic Exposure Control ......................................................................................5-7
3.2 Alert Codes Log ................................................................................................................5-8
3.3 System Data Retrieval ....................................................................................................5-10
3.3.1 Downloading Alert Codes Log ................................................................................5-11
3.3.2 Downloading Calibration Data ...............................................................................5-11
3.3.3 Uploading Calibration Data ....................................................................................5-12

P/N 9-500-0255 v
Service Manual
Chapter 6: Maintenance—Remove and Replace Procedures ............................. 6-1
1.0 Introduction ............................................................................................................................6-1
2.0 Gantry Components—Remove and Replace ...........................................................................6-1
2.1 Removing Covers and Panels From the Gantry .................................................................6-3
2.1.1 Left and Right Side Panels .........................................................................................6-4
2.1.2 Upper Rear Gantry Panel ..........................................................................................6-4
2.1.3 Rear Connector Panel ...............................................................................................6-5
2.1.4 Lower Rear Panel/Power Distribution Assembly ........................................................6-5
2.2 Gantry Cover Components ...............................................................................................6-6
2.2.1 C-arm Angle Display Boards .....................................................................................6-6
2.2.2 Emergency Off Switches ............................................................................................6-7
2.3 Control Panel Components ..............................................................................................6-8
2.3.1 Display Microprocessor Board ..................................................................................6-9
2.3.2 LCD Display .............................................................................................................6-9
2.4 Left-Side Gantry Components .........................................................................................6-10
2.4.1 High Voltage Generator Assembly ..........................................................................6-10
2.4.2 Power Control Board ...............................................................................................6-16
2.4.3 Auxiliary Power Distribution Board .........................................................................6-16
2.5 Right-Side Gantry Components ......................................................................................6-17
2.5.1 Host Microprocessor Board .....................................................................................6-17
2.5.2 Firmware Replacement ...........................................................................................6-18
2.5.3 Communications Interface Board ............................................................................6-18
2.5.4 Low Voltage Power Supply .....................................................................................6-19
2.5.5 C-arm Safety Microprocessor Board ........................................................................6-19
2.6 Internal Gantry Components ..........................................................................................6-20
2.6.1 Main Circuit Breaker ...............................................................................................6-20
2.6.2 The C-arm Angle Detent Microswitch .....................................................................6-21
2.6.3 The C-arm Rotation Potentiometer ..........................................................................6-22
2.6.4 The C-arm Vertical Drive Actuator ..........................................................................6-23
3.0 C-Arm Components—Remove and Replace .........................................................................6-26
3.1 C-Arm Frame Components .............................................................................................6-29
3.1.1 Patient Face Shield Installation and Removal ..........................................................6-29
3.1.2 C-arm Frame Covers ...............................................................................................6-30
3.1.3 Filament Protection Board .......................................................................................6-32
3.1.4 3-Position Switch Board ..........................................................................................6-33
3.1.5 7-Position Switch Board ..........................................................................................6-33
3.1.6 C-arm Switch Interface Board ..................................................................................6-34
3.1.7 C-arm Accessory Detect Board ................................................................................6-34
3.2 Tubehead Components ..................................................................................................6-35
3.2.1 Tubehead Covers ....................................................................................................6-35
3.2.2 X-ray Tube ..............................................................................................................6-36
3.2.3 Tubehead Control Board .........................................................................................6-38
3.2.4 C-Arm Cooling Fan .................................................................................................6-40
3.2.5 Beam Limiting Assembly .........................................................................................6-41
3.2.6 Aperture Detect Board ............................................................................................6-41
3.2.7 Filter Shifter Assembly .............................................................................................6-42
3.2.8 Light Field Lamp Assembly with Fan .......................................................................6-43
3.2.9 Light Field Lamp Assembly—Lamp Replacement ....................................................6-44
3.2.10 Light Field Lamp Assembly—Fan Replacement .....................................................6-44
3.2.11 Motorized Mirror Assembly ...................................................................................6-45

vi P/N 9-500-0255
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3.3 Compression Assembly .................................................................................................. 6-46
3.3.1 Compression Device Covers ................................................................................... 6-46
3.3.2 Compression Motor & Brake Assembly ................................................................... 6-46
3.3.3 Compression Clutch & Clutch Brake Assembly ....................................................... 6-48
3.3.4 Compression / AEC Position Display Boards ........................................................... 6-50
3.3.5 Compression Tray Sensor Board ............................................................................. 6-50
3.3.6 Compression Thickness Potentiometer .................................................................... 6-51
3.4 IRSD Components ......................................................................................................... 6-54
3.4.1 Image Receptor Support Device Covers .................................................................. 6-54
3.4.2 AEC Detector Assembly .......................................................................................... 6-55
3.4.3 AEC Position Detect Board ..................................................................................... 6-56
3.4.4 Accessory Detect Board .......................................................................................... 6-57
3.4.5 AEC Position Compression Display Microprocessor Board ...................................... 6-57
Chapter 7: Parts List ........................................................................................... 7-1
1.0 Instructions ............................................................................................................................ 7-1
1.1 The Replacement Parts Lists ............................................................................................. 7-1
Appendix A: Specifications ................................................................................A-1
1.0 System Specifications .............................................................................................................A-1
1.1 Electrical Input Specifications ..........................................................................................A-1
1.2 Unit Measurements .........................................................................................................A-1
1.3 Operating Environment ...................................................................................................A-2
1.4 Storage Environment ........................................................................................................A-2
1.5 C-arm Specifications ........................................................................................................A-3
1.6 Compression Specifications .............................................................................................A-3
1.7 Compression Paddles ......................................................................................................A-4
1.8 Apertures .........................................................................................................................A-5
1.9 Magnification ..................................................................................................................A-5
1.10 Image Receptor Support Device ....................................................................................A-6
1.11 C-arm Functions ............................................................................................................A-6
1.12 X-ray Source, Filtration and Collimation ........................................................................A-6
1.13 High Voltage Generator Specification (in compliance with IEC 601-2-7) .......................A-8
1.14 Image Receptors ..........................................................................................................A-10
1.15 Automatic Exposure Control Specifications ..................................................................A-10
1.16 Modes of Operation ....................................................................................................A-11
2.0 Room Requirements .............................................................................................................A-12
Appendix B: Technical References .....................................................................B-1
1.0 Introduction ........................................................................................................................... B-1
2.0 Test Points ............................................................................................................................. B-1
3.0 LED Indicators ....................................................................................................................... B-6
4.0 Image Receptor Detect Board—Sensor Combinations ............................................................ B-8
5.0 Fuses ...................................................................................................................................... B-9
6.0 Jumpers ................................................................................................................................ B-11

P/N 9-500-0255 vii
Service Manual
List of Figures
List of Figures
Figure 1-1 The Affinity System .......................................................................................................1-1
Figure 1-2 Affinity Gantry and C-Arm ............................................................................................1-6
Figure 1-3 Affinity Series Control Panel .........................................................................................1-7
Figure 1-4 Compliance Label Locations.......................................................................................1-10
Figure 2-1 Example Room Layout ..................................................................................................2-1
Figure 2-2 Un-Crating the Gantry ..................................................................................................2-2
Figure 2-3 Isolation Transformer Taps............................................................................................2-5
Figure 2-4 User Lamp (X-ray ON/Power ON) Connections ............................................................2-6
Figure 2-5 Remote Control Panel Installation.................................................................................2-7
Figure 2-6 Rear Connector Panel (Shroud removed) and Lower Rear Panel Connections ...............2-8
Figure 2-7 Connecting a Footswitch ..............................................................................................2-9
Figure 2-8 Installing the Radiation Shield.....................................................................................2-12
Figure 3-1 Affinity Controls and Indicators.....................................................................................3-1
Figure 3-2 The C-arm Controls ......................................................................................................3-3
Figure 3-3 Dual Function Footswitch.............................................................................................3-5
Figure 3-4 Emergency OFF ............................................................................................................3-6
Figure 3-5 The Tubehead Controls.................................................................................................3-7
Figure 3-6 The Affinity Series Control Panel...................................................................................3-8
Figure 3-7 The Run Mode Screen ..................................................................................................3-9
Figure 3-8 The User Default Screen ...............................................................................................3-9
Figure 3-9 The Exposure Default Screen ......................................................................................3-10
Figure 3-10 The Calibration Mode/Debug Screen ........................................................................3-10
Figure 3-11 Calibration Screen #1—Calibration Mode ................................................................3-11
Figure 3-12 Calibration Screen #2—Calibration Mode ................................................................3-11
Figure 3-13 Calibration Screen #3—Calibration Mode ................................................................3-12
Figure 3-14 Calibration Screen #4—Calibration Mode ................................................................3-12
Figure 4-1 Compression Force Calibration Setup ...........................................................................4-7
Figure 4-2 Compression Thickness Calibration Setup.....................................................................4-8
Figure 4-3 High Voltage Generator Calibration Setup ..................................................................4-10
Figure 4-4 Example—Filament Waveforms Pattern ......................................................................4-12
Figure 4-5 Example—Backup Timer Time-out Signal ...................................................................4-16
Figure 4-6 Half-Value Layer Setup ...............................................................................................4-33
Figure 4-7 Reproducibility & Linearity Check Setup.....................................................................4-35
Figure 4-8 IRSD Shielding Check.................................................................................................4-42
Figure 4-9 Tubehead Shielding Check .........................................................................................4-43
Figure 4-10 X-ray Beam Alignment Template ..............................................................................4-44
Figure 4-11 Aperture Alignment ..................................................................................................4-46
Figure 4-12 Affinity Apertures......................................................................................................4-47
Figure 4-13 Auto Aperture Alignment—18 x 24 cm Large Focal Spot ..........................................4-49
Figure 4-14 Light Field Size Adjustment.......................................................................................4-53
Figure 4-15 Light Field Edge Contrast Check................................................................................4-54
Figure 4-16 Probe Locations—Light Field Illuminance.................................................................4-55
Figure 4-17 Adjustment—Light Field Illuminance ........................................................................4-55
Figure 4-18 Adjustment - Compression Motor Chain ...................................................................4-56
Figure 4-19 kV Offset Calibration—Calibration Screen #3 ...........................................................4-59
Figure 5-1 Connecting Laptop Computer to Affinity.....................................................................5-11
Figure 6-1 Gantry Components......................................................................................................6-2

viii P/N 9-500-0255
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List of Figures
Figure 6-2 Gantry Components—Covers and Panels ..................................................................... 6-3
Figure 6-3 Rear Connector and Lower Rear Panels—Removal....................................................... 6-5
Figure 6-4 C-arm Angle Display Board—Removal......................................................................... 6-6
Figure 6-5 Emergency Off Switch—Removal................................................................................. 6-7
Figure 6-6 Control Panel Components .......................................................................................... 6-8
Figure 6-7 HV Generator Assembly (old style mounting plate)—Removal ................................... 6-12
Figure 6-8 HV Generator Assembly (new style mounting plate)—Removal.................................. 6-15
Figure 6-9 Microprocessor Firmware Chip—Replacement........................................................... 6-18
Figure 6-10 Main Circuit Breaker—Removal............................................................................... 6-20
Figure 6-11 C-arm Detent Microswitch—Removal ...................................................................... 6-21
Figure 6-12 C-arm Rotation Potentiometer—Removal................................................................. 6-22
Figure 6-13 Shipping Collar Installation of VTA Rail ................................................................... 6-23
Figure 6-14 Components of the Vertical Drive Assembly............................................................. 6-24
Figure 6-15 C-arm Frame Components........................................................................................ 6-26
Figure 6-16 Tubehead / Beam Limiting Components................................................................... 6-27
Figure 6-17 Compression Device Components ........................................................................... 6-28
Figure 6-18 IRSD Components.................................................................................................... 6-29
Figure 6-19 Patient Face Shield................................................................................................... 6-29
Figure 6-20 C-arm Frame Covers................................................................................................. 6-31
Figure 6-21 Filament Protection Board—Removal....................................................................... 6-32
Figure 6-22 C-arm Switch Pads—Removal.................................................................................. 6-33
Figure 6-23 C-Arm Accessory Detect Board—Removal ............................................................... 6-34
Figure 6-24 Tubehead Covers—Removal .................................................................................... 6-35
Figure 6-25 X-ray Tube—Removal .............................................................................................. 6-36
Figure 6-26 Tubehead Control Board—Removal......................................................................... 6-38
Figure 6-27 C-Arm Cooling Fan—Removal ................................................................................. 6-40
Figure 6-28 Aperture Detect Board—Removal ............................................................................ 6-41
Figure 6-29 Filter Shifter Assembly—Removal............................................................................. 6-42
Figure 6-30 Light Field Lamp Assembly with Fan—Removal ....................................................... 6-43
Figure 6-31 Motorized Mirror Assembly—Removal..................................................................... 6-45
Figure 6-32 Compression Motor & Brake Assembly—Removal ................................................... 6-47
Figure 6-33 Compression Clutch & Clutch Brake Assembly—Removal ....................................... 6-49
Figure 6-34 Compression / AEC Position Display Boards—Removal............................................ 6-50
Figure 6-35 Removal of Timing Belt from Upper Block Assembly ............................................... 6-52
Figure 6-36 Removal of Timing Belt from Bearing Block Assembly ............................................. 6-53
Figure 6-37 Compression Thickness Potentiometer—Removal .................................................... 6-53
Figure 6-38 IRSD Covers—Removal............................................................................................ 6-54
Figure 6-39 AEC Sensor Assembly—Removal.............................................................................. 6-55
Figure 6-40 Position Detect and Accessory Detect Boards—Removal ......................................... 6-56
Figure 6-41 AEC Position Comp. Display Microprocessor—Removal .......................................... 6-57
Figure A-1 Unit Measurements......................................................................................................A-2
Figure B-1 Fuse Location—Gantry ................................................................................................ B-9

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List of Tables
List of Tables
Table P-1 List of Acronyms for Affinity .......................................................................................P-xii
Table 1-1 Required Tools and Equipment for Installation and Maintenance .................................1-2
Table 3-1 Post Power-Up Checks ................................................................................................3-4
Table 4-1 Microprocessor S2 DIP Switches ..................................................................................4-2
Table 4-2 The Calibration Screens ...............................................................................................4-3
Table 4-3 Filament Waveforms Amplitude .................................................................................4-14
Table 4-4 Reduced mA Filament Waveform Amplitude .............................................................4-15
Table 4-5 Typical kV range versus compressed thickness ..........................................................4-17
Table 4-6 AEC Performance Worksheet—Large Focal Spot, Mo Filter ........................................4-22
Table 4-7 AEC Performance Worksheet—Large Focal Spot, Rh Filter .........................................4-23
Table 4-8 AEC Performance Worksheet—Small Focal Spot, Mo Filter ........................................4-26
Table 4-9 AEC Performance Worksheet—Small Focal Spot, Rh Filter .........................................4-27
Table 4-10 HTC Factor Worksheet ............................................................................................4-27
Table 4-11 Large Bucky Factor Worksheet .................................................................................4-28
Table 4-12 Compression Thickness Threshold Semi-Log ............................................................4-30
Table 4-13 Half-Value Layer Semi-Log ......................................................................................4-34
Table 4-14 Reproducibility Worksheet ......................................................................................4-38
Table 4-15 Linearity Worksheet .................................................................................................4-39
Table 5-1 Affinity Recommended Preventive Maintenance Procedures ........................................5-2
Table 5-2 Affinity Series Alert Messages .......................................................................................5-8
Table 5-3 Null-Modem, 9-pin to 25-pin Adapter Connections ...................................................5-10
Table 6-1 Tubehead Control Board Push Button Switches. ........................................................6-39
Table 7-1 Gantry Cover, Control Panel and Internal Components—Parts List ..............................7-1
Table 7-2 Gantry Left and Right-Side Components—Parts List .....................................................7-2
Table 7-3 C-Arm Frame Components—Parts List .........................................................................7-2
Table 7-4 C-Arm Tubehead Components—Parts List ...................................................................7-2
Table 7-5 C-Arm Compression Device Components—Parts List ...................................................7-3
Table 7-6 C-Arm Image Receptor Support Device—Parts List ......................................................7-3
Table 7-7 Miscellaneous—Parts List ............................................................................................7-4
Table A-1 Kv versus mA table ..................................................................................................... A-9
Table B-1 Filament Protect Board (PN 1-003-0289) Test Points .................................................. B-1
Table B-2 Power Control Board (PN 1-003-0445) Test Points ..................................................... B-2
Table B-3 C-arm Safety Board (PN 1-003-0440) Test Points ....................................................... B-2
Table B-4 Display Microprocessor Board (PN 1-003-0428) Test Points ....................................... B-3
Table B-5 Tubehead Control Board (PN 1-003-0403) Test Points ................................................ B-3
Table B-6 AEC Position Compression Display Microprocessor (PN 1-003-0471) Test Points ....... B-3
Table B-7 AEC Position Compression Display (PN 1-003-0472) Test Points ................................ B-4
Table B-8 Auxiliary Power Distribution Board (PN 1-003-0489) Test Points ............................... B-4
Table B-9 Communications Interface Board (PN 1-003-0434) Test Points ................................... B-4
Table B-10 Host Microprocessor Board (PN 1-003-0493) ........................................................... B-4
Table B-11 HV Control Filament Board (PN 1-003-0485) Test Points ........................................ B-5
Table B-12 Tubehead Control Board (1-003-0403) LED Indicators ............................................. B-6
Table B-13 Display Microprocessor Board (PN 1-003-0428) LED Indicators ............................... B-6
Table B-14 C-arm Safety Board (PN 1-003-0440) LED Indicators ................................................ B-7
Table B-15 Relay Protection Board (PN 1-003-0490) LED Indicators .......................................... B-7
Table B-16 Host Microprocessor Board (PN 1-003-0493) LED Indicators ................................... B-7
Table B-17 Host Microprocessor Board—C-arm Switch Multiple Function Indicators ................. B-7

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List of Tables
Table B-18 HV Control Filament Board (PN 1-003-0485) LED Indicators .................................... B-8
Table B-19 Image Receptor Sensor Combinations ....................................................................... B-8
Table B-20 Affinity Series Fuses ................................................................................................ B-10
Table B-21 Microprocessor Board (PN 1-003-0493) Jumper Settings ......................................... B-11
Table B-22 Communications Interface Board (PN 1-003-0434) Jumper Settings ........................ B-11
Table B-23 C-Arm Safety Board (PN 1-003-0440) Jumper Settings ............................................. B-11
Table B-24 HV Control Filament Board (PN 1-003-0485) Jumper Settings ................................. B-12

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Service Manual
Preface
Using the Service Manual
Preface
1.0 Using the Service Manual
The manuals available for use with the Affinity Mammography System are:
•The Affinity Service Manual—PN 9-500-0255 (this manual)
•The Affinity Operator’s Manual—PN 9-500-0246
•The Affinity Schematics Package—PN 9-500-0269
The first four sections of this service manual are designed to provide a service engineer with
a sequence for setting up and calibrating the Affinity Series Mammography Systems (Affinity
and Affinity Platinum). The remaining sections detail the maintenance procedures (i.e.,
performance checks, adjustments, and removal and replacement), replacement parts and
specifications.
Chapter 1: General Information
This chapter contains general system descriptions, x-ray, electrical, and mechanical safety
precautions, and compliance information.
Chapter 2: System Installation
This chapter contains information for unpacking, positioning, and installing the unit.
Attaching the interconnections, mounting the accessories, and connecting the unit to power
are also covered.
Chapter 3: Functional Checks/Setting Defaults
This chapter sequences the operator through performance and functional checks and setting
system defaults and user preferences.
Chapter 4: Calibrations and Performance Checks
This chapter provides system calibration, adjustment, and performance and compliance
check procedures.
Chapter 5: Maintenance—General
This chapter provides general information to aid the service engineer in maintaining the unit.
Chapter 6: Maintenance—Remove and Replace Procedures
This chapter details the remove and replace procedures for the individual components which
make up the unit.
Chapter 7: Parts List
This chapter provides tabular listings of the replacement parts.
Appendix A: Specifications
This appendix contains system specifications, including performance specifications, x-ray
tube and exposure specifications, compressions specifications and beam limiting
specifications.
Appendix B: Technical References

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Preface
Acronym List
This appendix contains tables used for identifying test points, LED indications, fuses,
jumpers, and accessory identification sensor combinations in the Affinity Series System.
1.1 Warnings, Cautions and Notes
Definitions of Warnings, Cautions and Notes used throughout this manual are as follows:
WARNING! This warning alerts you to procedures that you must follow
precisely to avoid causing potentially serious or fatal injury to
yourself or others.
Warning: This warning alerts you to procedures that you must follow
precisely to avoid injury to yourself or others.
Caution: Cautions point out procedures that you must follow precisely to avoid
damage to equipment, loss of data, or corruption of files in software
applications.
Note… Notes indicate important information that must be followed to ensure the
proper operation of the system.
2.0 Acronym List
Table P-1 provides a list of the common Acronyms used throughout the Affinity Series
Service Manual.
Table P-1: List of Acronyms for Affinity
Acronym Definition
21 CFR FDA Code of Federal Regulations, Title 21
AAmps
ACR MAP American College of Radiology Mammography Accreditation Program
ACR/CDC American College of Radiology/Center for Disease Control
AEC Automatic Exposure Control
BR-12 Breast equivalent material
CF Compression Force
cm centimeter
DMM Digital Multimeter
EMI Electro-magnetic Interference
EMO Switch Emergency OFF Switch
ESD Electro-static Discharge
F.A.S.T. Fully Automatic Self-Adjusting Tilt Paddle
HV High Voltage
HTC High Transmission Cellular Grid
HVL Beam Quality Half-Value Layer
I/O Input/Output
IR Image Receptor

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Preface
Acronym List
IRSD Image Receptor Support Device
lb Pound(s)
LVPS Low Voltage Power Supply
mA milli-Amps
Mag Magnification Mode
max maximum
mGy milli-Gray
min minimum
mm millimeters
Mo Molybdenum
MQSA Mammography Quality Standards Act
mrad milli-Radiation Absorbed Dose
N Newtons
OD Optical Density
PCB printed circuit board
PMMA Polymethyl Methacrylate
PN Part Number
PWM pulse-width-modulated
Rh or Rho Rhodium
SID Source to Image Distance
VVolts
VAC Volts, Alternating Current
VDC Volts, Direct Current
VTA Vertical Travel Assembly
Table P-1: List of Acronyms for Affinity
Acronym Definition

xiv P/N 9-500-0255
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Preface
Acronym List