Zeiss humphrey HFA II-i series Quick start guide

Humphrey®
Field Analyzer
Series HFA II - i
Field Service Guide
CONFIDENTIAL & PROPRIETARY
Part No. 52235, Revision C
November 2005

PROPRIETARY NOTICE
Information contained in this document is copyright Carl Zeiss Meditec Incorporated and may not be
reproduced in full or in part by any person without prior written approval of Carl Zeiss Meditec. Its
purpose is to provide the User with adequately detailed information so as to repair, maintain, and order
spare parts for the instrument supplied. Every effort has been made to keep the information contained
in this document current and accurate as of the date of publication or revision. However, no guarantee
is given or implied that the document is error-free or that it is accurate with regard to any specification.
TRADEMARK CREDITS
Humphrey Field Analyzer is a registered trademark of Carl Zeiss Meditec Inc.
All trademarks, registered trademarks, and trade names that appear in this manual are the property of
their respective holders.
Revision C ©2005 by Carl Zeiss Meditec Inc. All rights reserved.
Carl Zeiss Meditec Inc.
5160 Hacienda Drive
Dublin, CA 94568
ii

REVISION CONTROL LIST
Document: Field Analyzer Series HFA II - i Field Service Guide
Part No.: 52235 - Revision C
Issued Date: November 2005
Listed at the bottom of each page is the part number of the field service guide, along with the Revision
letter and date for that page (for example, 52235C1105). Subsequent revisions to a page will be noted
by a corresponding change to the Revision letter and date.
Pages in this document are at Revision C unless noted otherwise below.
Note - The Revision “B” Humphrey Field Analyzer Series HFA II-i Field Service Guide, P/N 52235
has been revised to Revision “C”. The new revision updates all references from “Humphrey Systems”
to “Carl Zeiss Meditec Inc. (CZMI)”.
Page Revision Page Revision Page Revision Page Revision
iii

Humphrey Field Analyzer II - i Table of Contents
Confidential and Proprietary
52235C1105 v Field Service Guide
Table of Contents
Section 1 - General Information
1.1 AboutThisFieldServiceGuide ................................ 1-3
1.1.1 General Information ................................... 1-3
1.1.2 Conventions ......................................... 1-4
1.2 AboutServiceBulletins ...................................... 1-4
1.3 HFA II - i ServiceStrategy .................................... 1-5
1.3.1 Two-LevelServiceStrategy.............................. 1-5
1.3.2 Three Steps to Completing an HFA II - i ServiceCall .......... 1-5
1.3.3 HFA II - i FieldServicePaperworkRequirements ............. 1-6
1.4 ConfigurationParameters .................................... 1-8
1.5 Precautions ............................................... 1-8
1.6 InternalLayout ........................................... 1-10
1.7 SpecialTopics ............................................ 1-10
1.7.1 TheTouchScreen ................................... 1-10
1.7.2 GazeTracking....................................... 1-11
1.7.3 Head Tracking / Auto Pupil / Vertex Monitoring ............. 1-14
1.7.4 HFA II - i LightIntensityFundamentals.................... 1-15
1.7.5 Comparing HFA II and the HFA II - i ..................... 1-15
1.8 Peripherals .............................................. 1-20
1.9 Specifications............................................. 1-22
Section 2 PM and System Checkout
2.1 SystemCheckoutChecklist ................................... 2-3
2.2 PreventiveMaintenanceProcedure ............................. 2-8
Section 3 Parts Removal / Replacement
3.1 General Instructions ..........................................3-4
3.1.1 RemovalfromPowerTable .............................3-10
3.2 FrontCoverAssemblyRemoval................................3-11
3.3 RearCoverAssemblyRemoval ................................3-12
3.4 OperatorPanelAssemblyRemoval .............................3-13
3.5 DriveHousingAssemblyRemoval ..............................3-15

Table of Contents Humphrey Field Analyzer II - i
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3.6 CPU/BackplaneEnclosureRemoval ............................3-17
3.7 CPUandBackplaneRemoval .................................3-18
3.8 MotorDrivePCBRemoval ...................................3-19
3.9 SeparationoftheCPUPCBfromtheBackplaneBoard..............3-20
3.10 Power Supply Removal ......................................3-21
3.11 CRTPCBRemoval .........................................3-22
3.12 CRTRemoval .............................................3-23
3.13 Touch Screen Removal ......................................3-25
3.14 CCDCameraRemoval ......................................3-26
3.15 Fixation Interconnect PCB Removal ............................3-26
3.16 CentralFixationLED/BeamsplitterRemoval ......................3-27
3.17 ProjectionAssemblyRemoval .................................3-28
3.18 Projection Interconnect PCB Removal ...........................3-30
3.19 FilmWedge/MotorRemoval ..................................3-30
3.20 GlassWedge/MotorRemoval..................................3-31
3.21 Color Wheel / Aperture Wheel Removal .........................3-32
3.22 CarriageMotorRemoval .....................................3-33
3.23 ShutterRemoval ...........................................3-34
3.24 ShutterMotorRemoval ......................................3-35
3.25 CarriageMotorBeltRemoval..................................3-35
3.26 Horizontal(X-axis)TurretMotorRemoval ........................3-36
3.27 Horizontal(X-axis)TurretMotorBeltRemoval ....................3-37
3.28 Vertical(Y-axis)TurretBelt/MotorRemoval.......................3-39
3.29 BrightnessDetector(PCB)Replacement .........................3-40
3.30 LowerTurretRemoval.......................................3-41
3.31 TurretCableAssemblyRemoval ...............................3-42
3.32 Chinrest/Headrest Switch Assembly Removal .....................3-42
3.33 Chinrest Y-axis Belt/Motor Removal ............................3-43
3.34 Patient Support Horizontal (X-axis) Belt/Motor Removal .............3-44
3.35 Chinrest Vertical Slide and Lead Screw Removal ...................3-47
3.36 Chinrest Horizontal Slide Removal .............................3-48
3.37 TrialLensHolderAssemblyRemoval ...........................3-49
3.38 TopFanRemoval ..........................................3-50
3.39 BowlIRLEDAssemblyRemoval ...............................3-51

Humphrey Field Analyzer II - i Table of Contents
Confidential and Proprietary
52235C1105 vii Field Service Guide
3.40 Blue-YellowModule/BowlPlugRemoval ........................3-52
3.41 BowlRemoval .............................................3-52
3.42 ReflexGazeLEDRemoval....................................3-54
3.43 BowlLampAssemblyRemoval ................................3-54
3.44 IRBowlPlugRemoval/Installation ..............................3-55
3.45 Quarter-Turn Fastener Replacement ............................3-56
Section 4 Adjustment / Calibration
4.1 Introduction................................................4-3
4.2 RelatedProcedures ..........................................4-5
4.2.1 HFA II - i Calibration and Service Guidelines ................ 4-5
4.3 Calibration/DiagnosticsAccess................................ 4-6
4.4 ShowDialog .............................................. 4-6
4.5 SystemLog ............................................... 4-6
4.6 Database ................................................. 4-6
4.7 VideoTestPattern .......................................... 4-6
4.8 Calibration................................................ 4-7
4.8.1 Verification (obtaining Before and After light intensity calibration
values) ............................................. 4-7
4.8.1.1 Intensity/SpotRatio ........................... 4-7
4.8.1.2 Exerciser.................................... 4-11
4.8.1.3 QATests.................................... 4-12
4.8.2 Mechanical ......................................... 4-12
4.8.2.1 Projector.................................... 4-12
4.8.2.2 Shutter ..................................... 4-13
4.8.2.3 Aperture .................................... 4-14
4.8.2.4 Color ...................................... 4-15
4.8.2.5 Right/LeftHome ............................. 4-16
4.8.2.6 Offset ...................................... 4-16
4.8.2.7 Focus ...................................... 4-16
4.8.2.8 Detector .................................... 4-17
4.8.2.9 Target...................................... 4-18
4.8.3 Intensity ........................................... 4-20
4.8.3.1 Projector.................................... 4-20
4.8.3.1.1 White .................................. 4-20

Table of Contents Humphrey Field Analyzer II - i
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4.8.3.1.2 Blue ................................... 4-21
4.8.3.2 Bowl....................................... 4-23
4.8.3.2.1 White .................................. 4-23
4.8.3.2.2 Yellow ................................. 4-24
4.8.3.3 Wedge ..................................... 4-25
4.8.3.4 BlueCorrection .............................. 4-26
4.8.4 PrintCalValues ..................................... 4-30
4.8.5 Miscellaneous ....................................... 4-30
4.8.6 Camera ........................................... 4-30
4.8.6.1 CameraPosition/Size ......................... 4-30
4.8.6.2 GazePosition/Size ........................... 4-33
4.8.6.3 CameraIntensity ............................. 4-34
4.9 Adjustments.............................................. 4-36
4.9.1 Patient Support Horizontal Leadscrew Adjustment ........... 4-36
4.9.2 BeltTension ........................................ 4-37
4.9.3 EdgeDetector....................................... 4-37
4.9.4 TouchScreen ....................................... 4-37
4.9.5 CRTAdjustments .................................... 4-38
4.9.6 TrialLensHolder .................................... 4-42
4.9.7 CameraFocus ...................................... 4-45
4.9.8 IRLEDAlignments ................................... 4-46
Section 5 Troubleshooting
5.1 Introduction ................................................. 5-3
5.2 General Guidelines for Assembly Level Troubleshooting ............... 5-3
5.3 A Guide to HFA II - i ServiceDiagnosticAids ....................... 5-7
5.4 SoftwareModuleIdentifiers ..................................... 5-8
5.5 HFA II - i MotorExerciserandQATestPoints ....................... 5-9
5.6 PrintrexPrinterSelfTestsandErrorHandling ...................... 5-11
5.6.1 PrinterSelfTest ....................................... 5-11
5.6.2 PrintrexPrinterErrorsandErrorHandling ................... 5-11
5.7 Power-OnSelfTests ........................................ 5-13
5.7.1 MotorDriverBoardStartup .............................. 5-13
5.8 StartupStateErrors .......................................... 5-15
5.9 HexadecimalErrorCodes ..................................... 5-21
5.10 CommonErrorMessages/Solutions .............................. 5-23

Humphrey Field Analyzer II - i Table of Contents
Confidential and Proprietary
52235C1105 ix Field Service Guide
Section 6 Diagrams
Figure 6-1. System Interconnect Diagram
Figure 6-2. Projection Path
Figure 6-3. CPU PCB
Figure 6-4. Backplane Board
Figure 6-5. Motor Driver PCB Projection Assembly
Figure 6-6. Fixation Interconnect PCB
Figure 6-7. Patient Support Assembly
Figure 6-8. Power Entry and Power Supply
Figure 6-9. Projection Assembly
Figure 6-10. Memory Module Drives
Figure 6-11. Component Locations – CPU PCBs
Figure 6-12. Component Locations – Motor Driver PCBs
Section 7 Parts
7.1 Introduction ................................................ 7-3
7.2 PartsOrders—U.S.DomesticServiceOperations................... 7-3
7.3 PartsOrders—InternationalServiceOperations .................... 7-3
7.4 Returning Instruments / Defective Parts ........................... 7-4
7.4.1 Equipment Return Authorization ........................... 7-4
7.4.2 Packing the Instrument for Shipment ....................... 7-4
7.4.3 Returning Defective Parts ................................ 7-4
7.5 RecommendedSpares........................................ 7-5
7.6 LevelIPartsLists ............................................ 7-6
7.6.1 Accessories/Supplies/Consumables ......................... 7-6
7.6.2 Software ............................................. 7-8
7.6.3 Peripherals ........................................... 7-8
7.7 IllustratedPartsBreakdown .................................... 7-9
7.7.1 Shipping Materials and Repack Instructions ................. 7-10
7.7.2 Miscellaneous–1 ...................................... 7-14
7.7.3 Miscellaneous–2 ...................................... 7-16
7.7.4 Patient Support Assembly ............................... 7-20
7.7.5 Chinrest / Trial Lens Holder Assembly ..................... 7-22
7.7.6 ProjectionAssembly ................................... 7-24
7.7.7 ProjectorAssembly .................................... 7-26

Table of Contents Humphrey Field Analyzer II - i
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7.7.8 ProjectionTurretAssembly .............................. 7-28
7.7.9 BowlAssembly ....................................... 7-30
7.7.9.1 BowlAssembly ................................ 7-32
7.7.10OperatorPanelAssembly ............................... 7-34
7.7.11B/YLampAssembly ................................... 7-36
7.7.12DriveMountingAssemblies.............................. 7-38
7.7.13CPUBackplaneEnclosure .............................. 7-40
7.7.14PowerTable/PrinterAssemblies ......................... 7-44
Appendices
Appendix A. Tools, Test Equipment and Service Supplies ................. A-1
A.1 List of Tools, Test Equipment and Service Supplies ........... A-1
A.2 TheSpecialTools-WhatTheyAre/WhatTheyDo........... A-3
A.2.1 SoligorLightMeterSetup ........................ A-3
A.2.2 SoligorMountAdaptor .......................... A-3
A.2.3 BowlShroud ................................. A-3
A.2.4 TrialLensAlignmentAdaptor ..................... A-3
A.2.5 FakeEye .................................... A-5
A.2.6 ToolStandAssembly ........................... A-5
A.2.7 MirrorTool ................................... A-5
A.2.8 CRTOverlay ................................. A-5
A.2.9 Spot Positioning Cross Fixture .................... A-5
A.2.10 BrightnessDetectorAlignmentTarget ............... A-6
A.2.11 ProjectionMount .............................. A-7
A.2.12 Operator Panel Extension/Support ................. A-8
A.2.13 HardDriveLEDAssembly ....................... A-9
A.2.14 ServiceKey................................... A-9
A.2.15 Diagnostic Support Tool ......................... A-9
A.2.16 LoopbackTool ............................... A-10
A.2.17 StaticProtectionKit ........................... A-10
A.2.18 Communications Terminals ..................... A-10
A.2.19 HowToSetUpTheP-FactorDiskette ............. A-11
Appendix B. The Interface Ports .................................... B-1
B.1 General Information ................................... B-1
B.2 RS-232 Interface Hardware and Pin Assignments ............ B-3