Vigileo Monitor Service Manual Feb 2008

Vigileo Monitor - Service Manual

PREFACE Edwards Lifesciences Vigileo Monitor Service Manual February 2008 Because of continuing product improvement, prices and specifications are subject to change without notice. Changes to this manual, either in response to user input or to continuing product improvements, are accomplished through reissue. If, in the normal use of this manual, errors, omissions, or incorrect data are noted, please contact Edwards Technical Support or your local Edwards representative.

Issued by Edwards Lifesciences LLC One Edwards Way Irvine, CA 92614-5686 Made in USA

Patents This product is manufactured and sold under one or more of the following US patent(s): US Patent No. 4,651,741; and corresponding foreign patents. Additional patents pending.

Trademarks Edwards Lifesciences, the stylized E logo, Vigileo, FloTrac, Edwards and SAT-1 are trademarks of Edwards Lifesciences Corporation; Co-set, FloTrac, and Vigileo are registered in the United States patent and trademark office. Flexport and PCMS are trademarks of Spacelabs, Inc.

Copyright ©2004-2008 Edwards Lifesciences LLC. All rights reserved. Printed in the United States of America. 2008

EU Representative Edwards Lifesciences Services GmbH Edisonstr. 6 D-85716 Unterschleissheim, Germany

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician. ii

Edwards Lifesciences

Table of Contents 1 Overview 1.1 Purpose... 1-1 1.2 Audience... 1-1 1.3 Product Description... 1-1 1.4 Monitor Block Diagram... 1-2 1.5 General Safety... 1-2 1.6 Symbols and Icons... 1-3 1.6.1 Warnings... 1-3 1.7.1 Notes... 1-11 1.9.1 Other Symbols... 1-22 1.10 Procedural Background Information... 1-23 1.10.1 Equipment / Technician Safety... 1-23 1.10.2 ESD Procedures... 1-23 1.10.3 Eye Safety... 1-23 1.10.4 Tools Required... 1-24 1.10.5 Disposables... 1-24 1.11 Standards/Compliance... 1-25

2 Site Preparation 2.1 Site Preparation Guidelines... 2-1 2.2 Preparing to Use the Monitor... 2-1 2.3 Power Source... 2-1 2.4 Equipotential Grounding... 2-1 2.5 Checking the Unit for Damage... 2-1

3 Monitor Maintenance 3.1 General... 3-1 3.2 Inspecting the Monitor... 3-1 3.3 Light Maintenance... 3-1 3.3.1 Preventive Maintenance... 3-1 3.3.2 Maintenance Frequency Recommendations... 3-2 3.4 Cleaning... 3-2 3.6.1 Cleaning and Sterilizing the Cable Jacket... 3-4 3.6.2 Drying the Sensor Connector... 3-4 3.6.3 Cleaning the Optical Module... 3-4 3.7 Disposal of the Monitor... 3-4 3.8 Updating Vigileo Software/Firmware... 3-5 3.8.1 Hardware/Software Requirements... 3-5 3.8.2 Software Upgrade Procedure... 3-5

4 Monitor Testing 4.1 Initial Start-up... 4-1 4.1.1 Scope... 4-1 4.1.2 General... 4-1 4.1.3 Using the Navigation Knob... 4-2 4.1.4 Start-Up Procedure... 4-2 4.1.5 Language Selection Screen... 4-4

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Vigileo Monitor Service Manual 4.1.6 Date/Time Frame... 4-5 4.1.6.1 Setting Date and Time Formats... 4-5 4.1.6.2 Setting the Current Date... 4-6 4.1.6.3 Setting the Current Time... 4-6 4.1.6.4 Multipurpose Frame... 4-6 4.2 Graphic User Interface (GUI)... 4-7 4.2.1 Functionality Assurance... 4-7 4.2.2 Safety Tests... 4-7 4.2.2.1 Overview... 4-7 4.2.2.2 Performance Assurance Test... 4-7 4.2.2.3 Equipment Required:... 4-8 4.2.2.4 Test Procedures... 4-8 4.2.2.5 Protective Earth Continuity... 4-8 4.2.2.6 Earth Leakage Current... 4-8 4.2.2.7 Enclosure Leakage Current... 4-9

5 Trouble Shooting 5.1 Overview... 5-1 5.2 Preliminary Screening of Received units... 5-1 5.3 Symptomatic Troubleshooting... 5-1 5.3.1 Unit Fails to Turn “On” with On/Standby button... 5-2 5.3.1.1 Green AC Indicator Doesn't Light and no Edwards Logo Screen is Displayed... 5-2 5.3.1.2 Green AC indicator lights and no Edwards Logo Screen is Displayed5-2 5.3.1.3 Green AC indicator lights and Edwards Logo Screen is Displayed for a Moment... 5-2 5.3.2 Navigation Knob Problems... 5-2 5.3.2.1 Knob Binds... 5-2 5.3.2.2 Knob Malfunction... 5-2 5.3.3 Display Problems... 5-3 5.3.3.1 Screen doesn't light, start-up tone is heard... 5-3 5.3.3.2 Screen lights, no display or distorted display... 5-3 5.3.4 No Sound... 5-3 5.3.5 USB Printer will not Print... 5-3 5.4 Diagnostic Tools and Their Use... 5-3 5.4.1 Power On Logo Screen... 5-4 5.4.2 Error Screen... 5-5 5.4.3 Error Screen Diagnostics... 5-6

6 Unit Disassembly 6.1 Introduction... 6-1 6.2 Equipment / Technician Safety... 6-1 6.2.1 ESD Procedures... 6-1 6.2.2 Eye Safety... 6-2 6.3 Tools Required... 6-2 6.3.1 Disposables... 6-2 6.4 Disassembly Procedure... 6-3

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7 Unit Assembly 7.1 Introduction... 7-1 7.2 Chapter Conventions... 7-1 7.3 Equipment / Technician Safety... 7-1 7.3.1 ESD Procedures... 7-2 7.3.2 Eye Safety... 7-2 7.4 Tools Required... 7-2 7.4.1 Disposables... 7-3 7.4.2 Notes for Assembly, Unless Otherwise Specified:... 7-3 7.5 Front Case Assembly... 7-4

8 Spare Parts 8.1 Spares - Complete Listing... 8-1 8.2 Vigileo Spares - Itemized Listing... 8-2 8.2.1 Small Parts... 8-2 8.2.2 Mounting Hardware... 8-3 8.2.3 Display Cable Interface... 8-3 8.2.4 Power Entry Module with Harness... 8-4 8.2.5 Power Supply with Harness... 8-4 8.2.6 Navigation Knob... 8-4 8.2.7 Equipotential Ground Stud... 8-5 8.2.8 Rear Labels... 8-5 8.2.9 Front Case... 8-5 8.2.10 Rear Case... 8-6 8.2.11 Power Supply Cover... 8-6 8.2.12 Display Bracket... 8-6 8.2.13 Rear Panel... 8-6 8.2.14 Blank Label Two Rolls... 8-7

9 packing for Shipment 9.1 General Instructions... 9-1 9.2 Repacking The Original Carton... 9-1 9.2.1 Monitor Packaging... 9-1 9.3 Packing in a Different Carton... 9-2

Appendix A Specifications A.1 Physical and Mechanical Specifications... A-1 A.2 Technical specifications... A-1 A.3 Environmental Specifications... A-2

Appendix B Service/Support/Warranty B.1 How to Obtain Monitor Operations Service and Support... B-1 B.1.1 Service and Support... B-1 B.2 Warranty... B-2

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Appendix C FATU Test Software Installation Procedure C.1 Purpose... C-1 C.2 Reference Material... C-1 C.3 Equipment Required... C-1 C.4 Procedure... C-1

Appendix D Guidance and Manufacturer’s Declaration D.1 Electromagnetic Compatibility... D-1 D.2 Instructions for Use... D-1

Appendix E BackLight Replacement E.1 General... E-1

Appendix F Drawings ... F-1 Index ... I-1

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1 OVERVIEW 1.1

PURPOSE This manual is designed to provide the procedures and background information necessary to troubleshoot, repair, and verify repairs made on Vigileo monitors.

1.2

AUDIENCE This manual is written for the use of Edward’s-qualified service personnel to troubleshoot and repair Edwards Vigileo monitors. This manual was written assuming the service person(s) are familiar with the operation of the monitor as described in the Vigileo Operator’s manual (part number 195075001).

1.3

PRODUCT DESCRIPTION The Vigileo monitor is a minimally invasive monitoring platform that measures APCO (arterial pressure cardiac output), oximetry (ScvO2 – central venous oxygen saturation and Oximetry – mixed venous oxygen saturation), SV (stroke volume), SVV (stroke volume variation), as well as derived continuous SVR (System Vascular Resistance) when interfaced with the appropriate bedside monitors. Calibration for oximetry is required, whereas APCO is self-calibrating. The monitor, in conjunction with other bedside monitors and clinical assessment, assists in assessing the patient’s status, and determining the need of and adequacy of therapy in the management of critically ill patients. The Vigileo monitor is suitable for use in the patient environment as indicated in IEC 60601-1-1. Refer to Chapters 1 and 2 of the Vigileo Operator’s manual for component, connector, and control identification

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Vigileo Monitor - Service Manual

1.4

MONITOR BLOCK DIAGRAM. ScvO2

Analog I/O

RS232

USB

Keypad

Power Entry Module with Fuses

AC Harness

Main PCB Assembly

Encoder Assembly Processing and Control

Audio Amplifier

+15V Power Supply

Speaker Assembly Display Cable

Display Assembly

DC Harness

Main Board Power Supplies

Patient Isolated FloTrac

Backlight Supply

Lamp Bulb

Figure 1-1: Monitor Block Diagram

1.5

GENERAL SAFETY This unit uses Mains power to perform its function and all reasonable precautions that are appropriate for an AC powered device should be taken. Reasonable care must be maintained to ensure there is no risk of electrical shock during diagnostic testing and repair procedures. Circuit Boards and other electronic components are static electricity sensitive and so must be “handled” using good ESD practices (see section “1.10.2 ESD Procedures ” on page 1-23 and see section “7.3.1 ESD Procedures ” on page 7-2).

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Chapter 1 - Overview

1.6

SYMBOLS AND ICONS The text includes a number of symbols that appear as markings on the Vigileo monitor front and Rear Case panels.In addition to the safety warnings, cautions and notes in the manual are printed with standard symbols/icons. WARNING: A WARNING advises against certain actions or situations that could result in personal injury or death. CAUTION: A CAUTION advises against actions or situations that could damage equipment, produce inaccurate data, or invalidate a procedure. NOTE: A NOTE draws attention to useful information regarding a function or procedure. WARNING: An indication of risk of potential Electrostatic Discharge (ESD) damage to Boards.

1.6.1

Warnings The following warnings are used in the Vigileo monitor Operator's Manual. They are introduced in the manual where relevant to the function or procedure being described. Table 1-1 Operational Safety Requirements

S S S S

WARNING Read this manual carefully before attempting to use the Edwards Lifesciences Vigileo monitor. (Chapter 1 - Vigileo Operator’s manual) WARNING Use of the Vigileo monitor is restricted to one patient at a time. (Chapter 1 - Vigileo Operator’s manual) WARNING Improper use of the Vigileo monitor could present a hazard to the patient. Carefully read the “Warnings” section of this manual before using the instrument. (Chapters 3 and 4 - Vigileo Operator’s manual) WARNING The Vigileo monitor is intended for use only as an adjunct in patient assessment. This instrument must be used in conjunction with patient clinical signs and symptoms. Read this Operator's Manual carefully before attempting to use the Vigileo monitor. (Chapters 3 and 4 - Vigileo Operator’s manual)

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Vigileo Monitor - Service Manual Table 1-1 Operational Safety Requirements (Continued)

S S S S S S S S S S 1-4

WARNING Explosion Hazard! Do not use the monitor in the presence of flammable anesthetic mixture with air or with oxygen or nitrous oxide. (Chapter 4 - Vigileo Operator’s manual) WARNING The analog and digital communication ports of the monitor share a common ground that is isolated from the catheter interface electronics. When connecting multiple devices to the Vigileo monitor, all devices should be provided with isolated power to avoid compromising the electrical isolation of any of the connected devices. (Chapter 4 - Vigileo Operator’s manual) WARNING Make sure the Vigileo monitor is securely mounted, and that all cords and accessory cables are appropriately arranged to minimize the risk of injury to patients, users or the equipment. (Chapter 4 - Vigileo Operator’s manual) WARNING To prevent injury, do not use a damaged Vigileo monitor or accessory. (Chapter 4 - Vigileo Operator’s manual) WARNING Do not use a damaged catheter or one with exposed electrical contacts. (Chapters 4, 7 - Vigileo Operator’s manual) WARNING Do not use any catheter that has been used previously. (Chapter 4 - Vigileo Operator’s manual) WARNING Do not use extension cords or multiple socket devices to connect power to the monitor. Do not use any other detachable power cords other than the power cord provided. (Chapter 4 - Vigileo Operator’s manual) WARNING Do not use the Vigileo monitor as a pulse rate or blood pressure monitor. (Chapter 6 - Vigileo Operator’s manual) WARNING Do not turn off the alarms in situations in which patient safety could be compromised. (Chapters 5, 6, 7 - Vigileo Operator’s manual) WARNING The Vigileo monitor contains no user-serviceable parts. Removing the cover or any other disassembly will expose you to hazardous voltages. (Appendix E - Vigileo Operator’s manual)

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Chapter 1 - Overview Table 1-1 Operational Safety Requirements (Continued)

S S S

WARNING Shock or fire hazard! Do not immerse the Vigileo monitor or cables in any liquid solution. Do not allow any fluids to enter the instrument. (Appendix E - Vigileo Operator’s manual) WARNING The Vigileo monitor should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the Vigileo monitor should be observed to verify normal operation in the configuration in which it is used. (Appendix F - Vigileo Operator’s manual) WARNING There are minimum amplitudes for the Vigileo monitor to measure physiological signals. Operation of the equipment below the minimum amplitudes may cause inaccurate results. (Appendix F - Vigileo Operator’s manual)

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Vigileo Monitor - Service Manual Table 1-1 Operational Safety Requirements (Continued) Accessories Usage Requirements

S S S S S S S S S S 1-6

WARNING Do not use a defibrillator while the monitor is connected to the patient. (Chapters 1, 4, 6 - Vigileo Operator’s manual) WARNING Do not use any FloTrac sensor that has been used previously. (Chapter 4 - Vigileo Operator’s manual) WARNING Refer to the directions for use provided with each catheter for specific instructions on catheter placement and use, and for relevant WARNINGS, CAUTIONS and NOTES. (Chapter 4 - Vigileo Operator’s manual) WARNING Use of accessories, sensors, and cables other than those specified may result in increased emission and/or decreased immunity of the Vigileo monitor. (Chapter 4, Appendix F - Vigileo Operator’s manual) WARNING Make sure all equipment and accessories connected to the monitor are properly grounded. (Chapter 4 - Vigileo Operator’s manual) WARNING Refer to the directions provided with each accessory for specific instructions on accessory placement and use, and for relevant WARNINGS, CAUTIONS, and SPECIFICATIONS. (Chapters 4, 7 - Vigileo Operator’s manual) WARNING Refer to the directions for use provided with each FloTrac sensor for specific instructions on placement and use, and for relevant WARNINGS, CAUTIONS and NOTES. (Chapter 4 - Vigileo Operator’s manual) WARNING Do not use a damaged FloTrac sensor or one with exposed electrical contacts.(Chapter 4 - Vigileo Operator’s manual) WARNING Make sure that alarm volume is set to a level that allows alarms to be adequately monitored. Failure to do so could result in a situation where patient safety is compromised.(Chapter 8 - Vigileo Operator’s manual) WARNING Perform New Patient or clear the patient data profile whenever a new patient is connected to the Vigileo monitor. Failure to do so may result in previous patient data in the historical displays.(Chapter 8 - Vigileo Operator’s manual)

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Chapter 1 - Overview Table 1-1 Operational Safety Requirements (Continued)

S S S

WARNING Make sure that Demo Mode is not activated in a patient setting to ensure that simulated data is not mistaken for clinical data.(Chapter 8 - Vigileo Operator’s manual) WARNING All IEC/EN 60950 equipment, including printers, must be positioned no closer than 1.5 meters to the patient's bed. Printers must have an ITE Class II power supply.(Chapter 11 - Vigileo Operator’s manual) WARNING Connect only accessories that have been qualified as part of the Vigileo monitoring system. (Appendix A - Vigileo Operator’s manual)

Monitor Maintenance

S

WARNING The Vigileo monitor contains no user-serviceable parts. Removing the cover or any other disassembly will expose you to hazardous voltages. (Appendix E - Vigileo Operator’s manual)

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Vigileo Monitor - Service Manual

1.6.2

Cautions

The following cautions are used in the Vigileo monitor Operator’s Manual. They are introduced in the manual where relevant to the function or procedure being described. Table 1-2 Monitor Operation

U

U U U U U 1-8

CAUTION Inaccurate cardiac output measurements can be caused by factors such as: Improperly zeroed and/or leveled sensor/transducer Over or under damped pressure lines Excessive variations in blood pressure. Some examples that cause BP variations include, but are not limited to: Post cardiopulmonary bypass surgery status Intra-aortic balloon pumps Any clinical situation where the arterial pressure is deemed inaccurate or not representative of aortic pressure; including but not limited to Extreme peripheral vasoconstriction Hyperdynamic conditions as seen in compensated sepsis or post liver transplant Excessive patient movement Electrocautery or electrosurgical unit interference (Chapter 3 - Vigileo Operator’s manual) CAUTION The effectiveness of the APCO algorithm in pediatric patients has not been evaluated. (Chapter 3 - Vigileo Operator’s manual) CAUTION The only way to remove power from the monitor is to unplug the power cord from its power source. (Chapters 3, 4 - Vigileo Operator’s manual) CAUTION Performing an In vitro calibration after the catheter has been inserted into the patient will yield erroneous calibration. (Chapters 3, 7 - Vigileo Operator’s manual) CAUTION The catheter and the calibration cup must be dry for an accurate oximetry In vitro calibration. Flush the catheter lumen only after the In vitro calibration has been completed. (Chapters 3, 7 - Vigileo Operator’s manual) CAUTION Do not use the Vigileo monitor during MRI procedures; refer to the catheter’s “directions for use” for catheter MRI compatibility. (Chapter 4 - Vigileo Operator’s manual)

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Chapter 1 - Overview Table 1-2 Monitor Operation (Continued)

U U U U U U U U U U

CAUTION Do not expose the Vigileo monitor to extreme temperatures. (Chapter 4 - Vigileo Operator’s manual) CAUTION When connecting the Vigileo monitor to any external device, refer to the device's Instruction Manual for complete instructions. Verify proper operation of the system before clinical use. (Chapter 4 - Vigileo Operator’s manual) CAUTION Do not use the Vigileo monitor in environments where strong lighting makes the LCD screen difficult to view. (Chapter 4 - Vigileo Operator’s manual) CAUTION Prior to catheter insertion, refer to directions for use provided with each catheter for complete description, instructions, warnings, cautions and specifications. (Chapter 4 - Vigileo Operator’s manual) CAUTION Do not use the monitor as a handheld device. (Chapter 4 - Vigileo Operator’s manual) CAUTION Use Edwards-compatible accessories only to avoid damage to the monitor and to ensure accuracy of patient information. (Chapter 4 - Vigileo Operator’s manual) CAUTION Prior to connection of the FloTrac sensor, refer to directions for use provided with each FloTrac sensor for complete description, instructions, warnings, cautions and specifications. (Chapter 4 - Vigileo Operator’s manual) CAUTION Always grasp the connector, not the cable, when connecting or disconnecting the cable. (Chapter 6 - Vigileo Operator’s manual) CAUTION Do not twist or bend the connectors. (Chapter 6 - Vigileo Operator’s manual) CAUTION Do not disconnect the optical module while calibration and patient data are being transferred from the Vigileo monitor. (Chapter 7 - Vigileo Operator’s manual)

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Vigileo Monitor - Service Manual Table 1-2 Monitor Operation (Continued)

U U

U

CAUTION The SQI signal is sometimes affected by the use of electrosurgical units. Attempt to distance electrocautery equipment and cables from the Vigileo monitor and plug the power cords into separate AC circuits if possible. If signal quality problems persist, call your local Edwards Representative for assistance. (Chapter 7 - Vigileo Operator’s manual) CAUTION The accuracy of continuous SVR depends upon the quality and accuracy of the CVP data transmitted from the external monitors. Since CVP analog signal quality from the external monitor cannot be validated by the Vigileo monitor, actual values and the values (including all derived parameters) displayed by the monitor may not be consistent. Refer to the external input device Operator's Manual for detailed information regarding accuracy, calibration, and other variables which may impact the analog output signal from the external monitor. (Chapter 8 - Vigileo Operator’s manual) CAUTION The Default Settings option replaces all settings with factory defaults. Any settings changes or customizations will be permanently lost. (Chapter 8 - Vigileo Operator’s manual)

Monitor Maintenance

U U U U

1-10

CAUTION Do not obstruct the Vigileo monitor ventilation openings. (Chapter 4 - Vigileo Operator’s manual) CAUTION Conduct periodic inspections of all cables for defects. Do not coil cables tightly when storing. (Appendix E - Vigileo Operator’s manual) CAUTION You can lightly wipe the top, bottom and front surfaces with the cloth, but the monitor screen and its accessories MUST NOT have liquid poured or sprayed directly on them. (Appendix E - Vigileo Operator’s manual) CAUTION DO NOT: allow any liquid to come in contact with the power connector, fuse holder, or switches allow any liquid to penetrate connectors or openings in the case. clean the monitor's rear panel If any liquid does come in contact with any of the above mentioned items, DO NOT attempt to operate the monitor. Disconnect power immediately and call your local Edwards Representative. (Appendix E - Vigileo Operator’s manual)

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Chapter 1 - Overview Table 1-2 Monitor Operation (Continued)

U U U U U U 1.7 1.7.1

CAUTION DO NOT attempt to clean the rear panel of the monitor. (Appendix E - Vigileo Operator’s manual) CAUTION Do not steam, radiate, or EO sterilize the Optical Module. Do not immerse. (Appendix E - Vigileo Operator’s manual) CAUTION If any electrolytic solution (e.g. NaCl, Lactated Ringers) is introduced into the sensor connector of the cable while it is connected to the monitor and the monitor is turned on, the excitation voltage can cause electrolytic corrosion and rapid degradation of the electrical contacts. (Appendix E - Vigileo Operator’s manual) CAUTION Do not immerse the connector in detergent, isopropyl alcohol, or glutaraldehyde. (Appendix E - Vigileo Operator’s manual) CAUTION Do not immerse the cable connector in these cleaning agents. (Appendix E - Vigileo Operator’s manual) CAUTION Do not use a hot air gun to dry the cable connector. (Appendix E - Vigileo Operator’s manual)

Monitor Case Symbols Notes The following are NOTES that are used in the Vigileo Monitor’s Service Manual. They are placed where a function or procedure is described.

NOTE: All measuring equipment must be within calibration and the calibration must be performed on a periodic schedule.

NOTE: The Operator must verify that they have the correct software and equipment per service center policy. Software changes must be recorded per institutional policy and device history records must be maintained.

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Vigileo Monitor - Service Manual

NOTE: The Vigileo monitor is suitable for use in the patient environment as indicated in EN 60601-1-1.

NOTE: This equipment may be used in continuous operation.

NOTE: The pictures in this section are for reference only. They do not necessarily represent or convey practices found in the typical manufacturing environment. They exist here as a supplement to the step-by-step instructions for dis-assembling the Vigileo monitor. Rules and practices, such as safety and ESD precautions, should be adhered to when servicing the monitor.

NOTE: Removal of the Right Rear Label is not required for the disassembly of the monitor.

NOTE: Only one of the three KEPS Nuts are shown.

NOTE: Only three of the four KEPS Nuts are shown.

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Chapter 1 - Overview

NOTE: Only required when replacing Fuses.

NOTE: Hex Nut removal will damage the Adhesive Locking Ring underneath it. This is normal because the adhesive ring is intended to be used only once.

NOTE: Ensure all mating surfaces for adhesive backed components to be attached to the unit (for example: Labels, Speaker Mesh, Keypad, Display Window), are clean and free of foreign matter.

NOTE: Ensure dust free surfaces during Display to Window installation.

NOTE: Ensure a smooth operation for both rotational and push button functions of the Encoder after replacement.

NOTE: Do not overstretch the Extruded Tube Gasket while seating it inside the groove of the Rear Case.

NOTE: Only remove one layer of the protective backing from the Adhesive Locking Ring at this time.

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Vigileo Monitor - Service Manual

NOTE: DO NOT OVERTIGHTEN.

NOTE: Ensure that the flat of the shaft is aligned with the corresponding flat on the hub of the Knob.

NOTE: After replacement, ensure a smooth operation of the encoder for both rotational and push button functions.

NOTE: Note the top (B - active) and bottom (C - inactive) Backlight Harnesses. See appendix D for manufacturer’s instructions on Backlight Lamp replacement.

NOTE: The Cable orientation. The top of the Display is covered by metal and the bottom has the Board Assembly exposed.

NOTE: Note top of Display (with active Backlight - B) and bottom of Display (with inactive Backlight - C).

NOTE: Proper positioning of both Cable Clamps.

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