Welch Allyn Connex Service Manual

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Welch Allyn Connex Wall System

Integrated

Service manual

Software version 2.3X

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© 2018 Welch Allyn. All rights are reserved. To support the intended use of the product described in this publication, the purchaser of the product is permitted to copy this publication, for internal distribution only, from the media provided by Welch Allyn. No other use, reproduction, or distribution of this publication, or any part of it, is permitted without written permission from Welch Allyn. Welch Allyn assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that may result from failure to use this product in accordance with the instructions, cautions, warnings, or statement of intended use published in this manual. Welch Allyn, Connex, SureTemp, and SureBP are registered trademarks of Welch Allyn. Oridion is a registered trademark of Oridion Medical 1987 Ltd. No implied license. Possession or purchase of this device does not convey any express or implied license to use the device with unauthorized CO2 sampling products which would, alone, or in combination with this device, fall within the scope of one or more of the patents relating to this device and/or CO2 sampling products. RRa is a trademark of; and SET, SpHb, rainbow, and Masimo are registered trademarks of Masimo Corporation. Possession or purchase of a Masimo-equipped device does not convey any express or implied license to use the device with unauthorized sensors or cables which would, alone or in combination with this device, fall within the scope of one or more of the patents relating to this device. Nellcor is a registered trademark of Covidien, PLC. Braun and ThermoScan are registered trademarks of Braun GmbH. Nonin is a registered trademark of Nonin Medical, Inc. Bluetooth is a registered trademark of Bluetooth SIG. Welch Allyn has provided Clinical Dynamics of CT, LLC, the calibration tables (CALTables) for use in its AccuPulse and AccuSim NIBP Simulators. For more information, Software in this product is Copyright 2018 Welch Allyn or its vendors. All rights are reserved. The software is protected by United States of America copyright laws and international treaty provisions applicable worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with this instrument as intended in the operation of the product in which it is embedded. The software may not be copied, decompiled, reverse-engineered, disassembled, or otherwise reduced to human-perceivable form. This is not a sale of the software or any copy of the software; all right, title, and ownership of the software remain with Welch Allyn or its vendors. This product may contain software known as “free” or “open source” software (FOSS). Welch Allyn uses and supports the use of FOSS. We believe that FOSS makes our products more robust and secure, and gives us and our customers greater flexibility. To learn more about FOSS that may be used in this product, please visit our FOSS website at www.welchallyn.com/opensource. Where required, a copy of FOSS source code is available on our FOSS website. For patent information, please visit www.welchallyn.com/patents. For information about any Welch Allyn product, contact your local Welch Allyn representative:

www.welchallyn.com/about/company/locations.htm.

DIR 80021577 Ver. A Revision date: 2018-02

click this link.

Welch Allyn, Inc. 4341 State Street Road Skaneateles Falls, NY 13153 USA

www.welchallyn.com

Regulatory Affairs Representative Welch Allyn Limited Navan Business Park Dublin Road Navan, County Meath Republic of Ireland

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Symbols ................................................................................................... 1

Safety ....................................................................................................... 5

Overview .................................................................................................. 9

iii

Warnings and cautions ......................................................................................... 5

General safety considerations .............................................................................. 6

Electrostatic discharge (ESD) ............................................................................... 6

Purpose and scope .............................................................................................. 9

Technical support services ................................................................................. 10

Recommended service intervals ........................................................................ 14

The Welch Allyn Service Tool ............................................................................ 14

Battery performance .......................................................................................... 16

Controls, indicators, and connectors ................................................... 19

Service menu ......................................................................................... 23

Access the Service screens ............................................................................... 23

General tab ......................................................................................................... 23

Self-tests tab ...................................................................................................... 26

Logs tab ............................................................................................................. 26

Device tab .......................................................................................................... 27

Licensing tab ...................................................................................................... 27

Power-up sequence ............................................................................... 29

Troubleshooting .................................................................................... 31

Symptoms and solutions ................................................................................... 31

Technical alarm messages ................................................................................. 45

Disassembly and repair ........................................................................ 59

Required tools and equipment ........................................................................... 61

Disassembly overview ....................................................................................... 62

Section A ................................................................................................ 63

Power down the device ..................................................................................... 63

Exploded view, front exterior ............................................................................. 64

Exploded view, rear interior ............................................................................... 71

Section B .............................................................................................. 103

Power down the device ................................................................................... 103

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iv Contents Welch Allyn Connex® Integrated Wall System

Exploded view, front exterior ........................................................................... 105

Exploded view, rear interior ............................................................................. 112

Functional verification and calibration .............................................. 145

Functional verification tests ............................................................................. 145

Basic functional verification checks ................................................................. 148

Electrical safety testing ....................................................................... 163

Ground stud connector .................................................................................... 164

Options, upgrades, and licenses ........................................................ 165

Available options, upgrades, and licenses ....................................................... 166

Install options ................................................................................................... 168

Host firmware requirements ............................................................................ 170

Masimo parameter upgrades ........................................................................... 171

Configure options ............................................................................................. 171

Field replaceable units ........................................................................ 173

Front housing, handle module assembly, and modules - front exterior exploded

view ................................................................................................................. 173

Front housing, handle housing, and chassis - rear interior exploded view ....... 177

Miscellaneous parts ......................................................................................... 185

Licenses ........................................................................................................... 186

Partners in Care service and support agreements ........................................... 186

Service and repair training ................................................................................ 186

Appendices .......................................................................................... 187

Decontamination and cleaning requirements .................................................. 187

Configuration options ....................................................................................... 188

Factory defaults ............................................................................................... 190

Disassembly and repair reference ................................................................... 201

Connex Integrated Wall System interconnect diagram ................................... 209

Service record .................................................................................................. 211

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Symbols

For information on the origin of these symbols, see the Welch Allyn symbols glossary:

www.welchallyn.com/symbolsglossary.

Documentation symbols

WARNING The warning statements in this manual identify conditions or practices that could lead to illness, injury, or death.

Power symbols

CAUTION The caution statements in this manual identify conditions or practices that could result in damage to the equipment or other property, or loss of data. This definition applies to both yellow and black and white symbols.

WARNING Hot surface. Do not touch.

Follow the operating instructions/directions for use (DFU) — mandatory action.

A copy of the DFU is available on this website.

A printed copy of the DFU can be ordered from Welch Allyn for delivery within 7 days.

Power on/Display power-saving [recent models]

Power on/Display power-saving [older models]

Equipotential terminal

(on the display) monitor is plugged into Alternating Current power

Battery absent or faulty

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2 Symbols Welch Allyn Connex® Integrated Wall System

(on the monitor, green indicator) Alternating Current power present, battery fully charged

(on the monitor, amber indicator) Alternating Current power present, battery is charging

Alternating Current (AC) Rechargeable battery

Li-ion battery AC input power

Connectivity symbols

USB

Wireless signal strength

• Best (4 bars)

• Good (3 bars)

• Fair (2 bars)

• Weak (1 bar)

• No signal (no bars)

• No connection (blank)

Battery charge level

Battery cover

Ethernet RJ-45

Nurse call [recent models]

Nurse call [older models]

Connected to central station Disconnected from central station

Miscellaneous symbols

CO2 sampling input

Manufacturer Limited rotation/Turn completely to

Reorder number Serial number

Do not reuse China RoHS markings for control of

CO2 sampling output/exhaust

right

pollution caused by electronic information products. XX indicates Environmentally Friendly Use Period in years.

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Service manual Symbols 3

Nonionizing electromagnetic radiation

Restrictions for use of wireless device in Europe. European Community's Class 2 radio equipment.

Defibrillation-proof Type BF applied parts

Atmospheric pressure limitation Not for injection

Transport and storage temperature range

Maximum safe working load limits (specific values presented with

symbol)

Recycle the product separate from other disposables

Call for maintenance

Defibrillation-proof Type CF applied parts

Authorized Representative of the European Community

Mass in kilograms (kg)

Recycle

Do not expose to open flame

IPX1

(Vital Signs Monitor)

IPX0

(Integrated Wall System)

Degree of protection provided by the enclosure with respect to harmful ingress of liquids

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4 Symbols Welch Allyn Connex® Integrated Wall System

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Safety

All users of the system must read and understand all safety information presented in this manual before using or repairing the system.

United States federal law restricts this device to sale, distribution, or use by or on the order of a licensed medical practitioner.

Warnings and cautions

WARNING Safety risk. Make frequent electrical and visual checks on cables, sensors, and electrode wires. All cables, sensors, and electrode wires must be inspected and properly maintained and in proper working order to allow the equipment to function properly and to protect patients.

WARNING Safety risk. Place the system and accessories in locations where they cannot harm the patient should they fall from a shelf or mount.

WARNING Fire and explosion hazard. Do not operate the system in the presence of a flammable anesthetic mixture with air, oxygen, or nitrous oxide; in oxygen-enriched environments; or in any other potentially explosive environment.

WARNING Inaccurate measurement risk. Dust and particle ingress can affect the accuracy of blood pressure measurements. Use the system in clean environments to ensure measurement accuracy. If you notice dust or lint build-up on the system’s vent openings, have the system inspected and cleaned by a qualified service technician.

CAUTION Before disassembling the device or installing options, disconnect the patient from the system, power down the device, and disconnect the AC power and any attached accessories (for example, SpO2 sensors, blood pressure hoses and cuffs, and temperature probes) from the device.

CAUTION To ensure that the system meets its performance specifications, store and use the system in an environment that maintains the specified temperature and humidity ranges.

CAUTION The system may not function properly if dropped or damaged. Protect it from severe impact and shock. Do not use the system if you notice any signs of damage.

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6 Safety Welch Allyn Connex® Integrated Wall System

CAUTION Do not connect more than one patient to a system or connect more than one system to a patient.

CAUTION Do not operate the system in the presence of magnetic resonance imaging (MRI) or hyperbaric chambers.

CAUTION Do not autoclave the system. Autoclave accessories only if the manufacturer’s instructions clearly approve it.

General safety considerations

• If the system detects an unrecoverable problem, it displays an error message. For more information see “Troubleshooting.”

• To ensure patient safety, use only accessories recommended or supplied by Welch Allyn. (See the accessories list in the Welch Allyn Connex Integrated Wall System Directions for use on the user documentation CD or http://www.welchallyn.com. Always use accessories according to your facility’s standards and according to the manufacturer’s recommendations and instructions. Always follow the manufacturer’s directions for use.

• Welch Allyn recommends that only Welch Allyn service personnel or an authorized repair center perform warranty service. Performing unauthorized service on a device that is within warranty may void the warranty.

Electrostatic discharge (ESD)

CAUTION Electrostatic discharge (ESD) can damage or destroy electronic components. Handle static-sensitive components only at static-safe workstation.

CAUTION Assume that all electrical and electronic components of the system are static-sensitive.

Electrostatic discharge is a sudden current flowing from a charged object to another object or to ground. Electrostatic charges can accumulate on common items such as foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging material, and untreated plastic bags and work folders, to name only a few.

Electronic components and assemblies, if not properly protected against ESD, can be permanently damaged or destroyed when near or in contact with electrostatically charged objects. When you handle components or assemblies that are not in protective bags and you are not sure whether they are static-sensitive, assume that they are staticsensitive and handle them accordingly.

Perform all service procedures in a static-protected environment. Always use

• techniques and equipment designed to protect personnel and equipment from electrostatic discharge.

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Service manual Safety 7

• Remove static-sensitive components and assemblies from their static-shielding bags only at static-safe workstations—a properly grounded table and grounded floor mat— and only when you are wearing a grounded wrist strap (with a resistor of at least 1 megohm in series) or other grounding device.

• Use only grounded tools when inserting, adjusting, or removing static-sensitive components and assemblies.

• Remove or insert static-sensitive components and assemblies only with system power turned off.

• Insert and seal static-sensitive components and assemblies into their original staticshielding bags before removing them from static-protected areas.

• Always test your ground strap, bench mat, conductive work surface, and ground cord before removing components and assemblies from their protective bags and before beginning any disassembly or assembly procedures.

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8 Safety Welch Allyn Connex® Integrated Wall System

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Overview

Purpose and scope

This manual is a reference for periodic preventive maintenance and corrective service procedures for the Welch Allyn Connex Integrated Wall System, firmware version 2.3X. It is intended for use only by trained and qualified service personnel.

Corrective service is supported to the level of field-replaceable units. These include circuit-board assemblies and some subassemblies, case parts, and other parts.

Find instructions for functional testing and performance verification in the Welch Allyn Service Tool help files.

This manual applies only to this device. For servicing of any other device, see the service manual for the specific device.

Service work not described in this manual must be performed by qualified service personnel at the factory or at an authorized Welch Allyn service center.

Technical support services

Welch Allyn offers the following technical support services:

• Telephone support

• Loaner equipment

• Service agreements

• Service training

• Replacement service parts

• Product service

For information on any of these services, go to www.welchallyn.com.

Service loaners

For warranty or non-warranty repairs not covered under a support agreement, loaners are available for a nominal charge, subject to availability. Payment is required prior to shipment for all loaners not covered under a support agreement.

Welch Allyn Service Centers that provide repair service for this product can, on request, loan a device for use while the device is being repaired. Loaned devices are provided free of charge for products repaired while under a support agreement that includes a free loaner provision.

Loaner equipment for the individual component modules is not available.

Service options

Partners in Care service agreements

While product warranties provide basic assurance of Welch Allyn hardware quality, they may not include the full range of services and support you need. Welch Allyn offers premium service and support through our Partners in Care program. Whether you service your own devices and require a minimum of support or rely on us to service your device, Welch Allyn provides a program that will meet your needs. A list of available service and support agreements is presented in the "Field replaceable units" section of this manual. For more information, visit our web site at www.welchallyn.com or call your sales representative.

Warranty service

All repairs on products under warranty must be performed or approved by Welch Allyn. Refer all warranty service to Welch Allyn Product Service or another authorized Welch Allyn Service Center. Obtain a Return Material Authorization (RMA) number for all returns to Welch Allyn Product Service.

Non-warranty service

Welch Allyn product service and authorized service centers support non-warranty repairs. Contact any Welch Allyn regional service center for pricing and service options.

CAUTION Unauthorized repairs will void the product warranty.

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Service manual Overview 11

Welch Allyn offers modular repair parts for sale to support non-warranty service. This service must be performed only by qualified end-user biomedical/clinical engineers using this service manual.

Service training is available from Welch Allyn for biomedical/clinical engineers. Follow this link for more information.

Repairs

A Welch Allyn Service Center must perform all repairs on products under warranty, unless you have purchased a Welch Allyn Partners in Care Biomed agreement allowing you to service the device while under warranty.

CAUTION Unauthorized repairs will void the product warranty.

Qualified service personnel or a Welch Allyn Service Center should repair products out of warranty.

If you are advised to return a product to Welch Allyn for repair or routine maintenance, schedule the repair with the service center nearest you.

Welch Allyn Technical Support

If you have a problem with the device that you cannot resolve, call the Welch Allyn Technical Support Center nearest you for assistance. A representative will assist you in troubleshooting the problem and will make every effort to solve the problem over the phone, potentially avoiding an unnecessary return.

To expedite response to your issue, be prepared to provide details on how (steps executed) and when (time and date) the problem occurred. Also, log and configuration files captured on the device can assist with diagnosis and troubleshooting. You can easily save these files from the device to a flash drive using controls on the Service tab. See the "Service menu" section of this manual for details.

If your product requires warranty, extended warranty, or non-warranty repair service, a Welch Allyn Technical Support representative will record all necessary information to issue an RMA number. The support representative will provide you with the address of the Welch Allyn Service Center to send your device to.

Technical support is available during local business hours.

Returning products

When returning a product to Welch Allyn for service, ensure that you have the following information:

Product name, model number, and serial number. This information may be found on

• the product and serial number labels on the bottom of the device.

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12 Overview Welch Allyn Connex® Integrated Wall System

• A complete return shipping address.

• A contact name and phone number.

• Any special shipping instructions.

• A purchase order number or credit card number if the product is not covered by a warranty.

• A Partners in Care contract number if product is covered under a service agreement.

• A full description of the problem or service request.

Unless noted in the RMA, the device will be updated to the current software version. If you prefer that the device not be updated, please state "Do not update software" in the service request.

Note When requesting an upgrade, check the "Options, upgrades, and licenses"

section to determine if a software upgrade is required.

1. Obtain an RMA number:

• Visit us on the web at www.welchallyn.com/customer-self-service.htm, or

• Contact Welch Allyn to make a request.

Note Welch Allyn does not accept returned products without an

RMA.

2. Ship the device to Welch Allyn, observing these rules:

a. Remove from the package the battery, all hoses, connectors, cables, sensors,

power cords, and other ancillary products and equipment, except those items that might be associated with the problem.

b. Follow shipping and handling requirements regarding Lithium-ion batteries to

comply with new IATA regulations.

Requirements for returning Lithium-ion batteries

• Remove the Lithium-ion battery from the device. You cannot ship these devices with batteries installed.

• Follow packaging requirements (presented next in this section)

• Do not ship any battery that has been physically damaged or shows signs of leakage.

• Do not ship any battery that has been recalled by the supplier or manufacturer.

• Do not ship any waste batteries that should be recycled or discarded.

• Do not ship multiple batteries together.

• Use ground transportation only to ship Lithium-ion batteries.

Packaging requirements for Lithium-ion batteries and associated devices

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Service manual Overview 13

• Use packaging provided by Welch Allyn or the battery manufacturer to pack the battery. Seal the battery in the anti-static bag and place it in the shipping box. Return shipments without approved packing materials will not be accepted.

Note If the original shipping carton or replacement battery

shipping box is unavailable, consult the manufacturer website for information regarding shipping Lithiumion batteries:

http://www.iata.org/lithiumbatteries

• If returning both the battery and the device, pack the battery and the device separately.

• If returning multiple batteries, pack and ship each battery individually. Do not consolidate multiple batteries in a single package.

c. Clean the device.

Note To ensure safe receipt of your device by the service

center and to expedite processing and return of the device to you, thoroughly clean all residues from the device before you ship it to Welch Allyn. For decontamination and cleaning requirements, see the appendices. If a returned device is found to be contaminated with bodily fluids, it will be returned at the owner’s expense. United States federal regulations prohibit the processing of any device contaminated with blood-borne pathogens. Welch Allyn thoroughly cleans all returned devices on receipt, but any device that cannot be adequately cleaned cannot be repaired.

d. Pack the device. Put the device, enclosed in a plastic bag with a packing list,

into the original shipping carton with the original packing materials or into another appropriate shipping carton, and seal appropriately for shipping. Remember that the device and any batteries must be packed and shipped separately.

e. Write the Welch Allyn RMA number with the Welch Allyn address on the outside

of the shipping carton.

WARNING Safety risk. Do not ship any battery that has been physically damaged or shows signs of leakage unless you receive specific instructions which meet the requirements for the shipment of Lithium batteries. Dispose of damaged or leaking batteries in an environmentally safe manner consistent with local regulations.

WARNING Safety risk. Do not pack a defective battery in checked or carry-on baggage if traveling by air.

Note In the United States, the applicable regulations can be

found in the Code of Federal Regulations (CFR). Refer to 49 CFR 173.185 for shipping lithium batteries by air or ground. Use 49 CFR 172.102 sections 29, 188, 189, A54, A55, A100, A101, A103, and A104 to find the special provisions for shipping lithium batteries.

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Overview Welch Allyn Connex® Integrated Wall System

Recommended service intervals

To confirm that the device is functioning within the design specifications, perform periodic service as indicated in the following table. Customers who have the Standard unlicensed edition of the Welch Allyn Service Tool can perform the basic functional verification and calibration procedures referenced in the table by following the instructions in this manual. If you have the Gold licensed edition of the service tool, use the tool to perform a complete functional verification and calibration of the device in lieu of performing the basic tests.

Component Service interval Service procedure

NIBP module Annually Basic functional verification

SpO2 module Annually Basic functional verification

SpHb parameter Annually Basic functional verification

RRa parameter N/A N/A

SureTemp Plus Annually Basic functional verification

ECG N/A N/A

Braun ThermoScan PRO 6000 Annually Basic functional verification

Braun ThermoScan PRO 4000 Annually Basic functional verification

Battery 300 charge cycles Replace the battery

Use the service tool, Gold licensed edition, to perform a complete functional verification and calibration of the device whenever any of the following conditions exist:

•

• The device has been dropped or otherwise damaged

• The device is malfunctioning

• The case has been opened

• An internal part has been replaced (battery excluded)

Note For instructions on using the Gold licensed edition, see the service tool

Maintenance

Based on the basic functional verification, the device does not meet specifications

help files.

For device maintenance information, see “Maintenance and service” in the wall system's directions for use. Covered topics include the following:

Inspecting and cleaning the system and accessories

•

• Changing the battery

The Welch Allyn Service Tool

The Welch Allyn Service Tool is available in the following editions:

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Service manual

Overview 15

• Standard unlicensed: Download from http://www.welchallyn.com/service tool.

• Gold licensed: Required to perform complete functional verification and calibration.

This edition requires an additional license. For more information about acquiring this license, contact Welch Allyn.

Note To qualify for the Gold license, you must attend the

Welch Allyn technical training course or complete online training for the device.

Clinicians and technical service personnel can use the service tool to manage and maintain supported Welch Allyn products. You can use the service tool to do the following:

• Review device information. When connected to the device, the service tool lists

installed modules, installed firmware and hardware versions, warranty and repair information, status, and usage history.

• Receive notifications when periodic maintenance is needed. The service tool can

help you manage and maintain your entire inventory of supported Welch Allyn products. Through the remote service function, the service tool can connect to Welch Allyn Customer Service. With this functionality you can automatically receive firmware updates and feature upgrades for your supported products, including software upgrades for the service tool.

• Install updates and upgrades. The service tool can read the firmware version for

each module and check for available updates or upgrades.

• Create a work list. The work list provides information about service actions—

referred to as work orders—that are waiting for you to perform on your maintained devices. Work orders may include periodic calibrations, upgrades, or license installations.

• Schedule periodic maintenance. You can use the service tool to set the service

interval for each maintained device.

• View and save logs. You can download and save log files from the device for

analysis to help diagnose and identify reported issues.

• Create user accounts. Administrators can create user accounts and set permission

levels to control access to the features, allowing one group to perform administrative tasks and another to perform service tasks. Restricting access prevents the service tool from being used to make unauthorized changes on a connected device.

• Perform functional verification and calibration. The service tool can check any

device requiring calibration and, if necessary, calibrate the device to match the design specifications. This feature is not supported for all products and requires the service tool, Gold licensed edition, for each supported product.

• Recover devices. In the rare case where a device can no longer boot because of

corrupted firmware, the service tool can connect the device to Welch Allyn Technical Support to reinstall the firmware.

• Extensible. The service tool software accepts new plug-ins to support future Welch

Allyn products.

Some of these features are enabled for any user (Standard unlicensed edition). Others require special user account privileges or a Welch Allyn service contract (Gold licensed edition). If you require gold-level support for a Welch Allyn product, please contact Welch Allyn technical support.

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16 Overview Welch Allyn Connex® Integrated Wall System

Battery performance

About the battery

Note The battery in the wall system provides backup power during a power

outage, not power for normal use. Except during cleaning and maintenance activities, the wall system should remain connected to AC power at all times.

The device uses a rechargeable Lithium-ion smart battery. Internal circuitry enables the battery to report its condition to the device. The device displays the battery status via the LED power indicator, icons on the screen, and status messages appearing in the Device Status area of the display. Battery information may be collected using the service tool.

New batteries are shipped from the manufacturer with a 30 percent charge to extend shelf life. When installing a new battery in the device, you must plug the device into AC power to wake up the battery. If the AC power is not applied to the device, the new battery will appear discharged.

The Device Status area displays a low-battery status message when 30 minutes of power remain and again when 5 minutes remain.

Battery charging is provided by the device’s internal power supply.

For a complete list of battery specifications, see the device’s directions for use.

Best practices

The following practices help to extend the life of the battery and the device.

• Whenever possible, keep the monitor plugged in to charge the battery.

• Remove the battery when storing the device for an extended amount of time.

• Replace batteries that trigger a low battery status message when fully charged.

• Do not use damaged or leaking batteries.

• Store batteries with a 30 to 50 percent charge.

• Store batteries within the temperature range indicated for each period:

• Recycle batteries where ever possible. In the United States call 1-877-723-1297 for

• When recycling is not an option dispose of batteries in an environmentally safe

WARNING Safety risk. When handling and storing Lithium batteries: Avoid mechanical or electrical abuse. Batteries may explode or cause burns, if disassembled, crushed or exposed to fire or high temperatures. Do not short or install with incorrect polarity.

○

For storage less than 30 days: Maintain temperature between –4 °F and 122 °F (–20 °C and 50 °C).

○

For storage between 30 days and 90 days: Maintain temperature between –4 °F and 104 °F (–20 °C and 40 °C).

○

For storage more than 90 days up to 2 years: Maintain temperature between –4 °F and 95 °F (–20 °C and 35 °C).

information about recycling your Lithium-ion battery or go to the Call2Recycle website at http://www.call2recycle.org for additional information.

manner consistent with local regulations.

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Service manual Overview 17

Factors affecting battery operating time

The following settings and conditions affect the battery operating time:

• The display brightness setting

• The display power-saver setting

• The device power-down setting

• Frequency and duration of alarms and alerts

• Amount of motion artifact during NIBP measurements

• Radio searching for an access point

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18 Overview Welch Allyn Connex® Integrated Wall System

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Controls, indicators, and connectors

Note Your model might not contain all of these features.

Front View

No. Feature Description

1 Physical assessment instruments - Handles

and handle cradles

2 Rheostat Light output adjustment located on each handle. Turn clockwise

3 Exhaust vents Provide openings for heat to escape and cool the device.

4 LCD screen 1024 x 600 color touchscreen provides a graphical user interface.

5 Storage compartment Provides covered storage for additional probe covers and other

6 Expansion slots Provide space to add modules.

7 SureTemp® Plus thermometer probe cover

storage area

8 SureTemp® Plus thermometer probe Supports temperature measurements from oral, axillary, and

Handles accept any 3.5V Welch Allyn instrument head. Handle cradles support using one handle at a time. A handle

turns on automatically when you remove it from a cradle and turns off when you return it.

to increase light output; turn counterclockwise to decrease light output.

small accessories.

Provides storage for thermometer probe covers.

rectal sites.

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20 Controls, indicators, and connectors Welch Allyn Connex® Integrated Wall System

No. Feature Description

9 Braun ThermoScan® PRO thermometer and

dock

10 SureTemp® Plus thermometer connector Secures the probe connection to the wall system.

11 Blood pressure and pulse oximetry See front underside view for more detail.

12 Power switch and LED Power-on/Standby switch.

13 USB/Comms cover Houses light bar.

14 Light bar Provides a visual alarm with red and amber LEDs.

15 Speaker Provides tones. A piezo beeper inside the monitor provides

16 Specula dispenser Dispenses KleenSpec® disposable specula in pediatric (2.75 mm)

Support temperature measurements from the ear. Dock charges the thermometer battery.

The LED indicates the charging status when connected to AC power:

• Green: The battery is charged.

• Amber: The battery is charging.

Provides access to host USB connections for optional accessories and some routing for cords and cables.

backup.

and adult (4.25 mm) sizes.

Front underside views

(Left: USB/Comms cover attached; Right: USB/Comms cover removed)

No.

Feature Description

1 Retention screws Attach USB/Comms cover.

2 Blood pressure Self-contained module for easy replacement. Supports dual-

3 Pulse oximetry Optional Nellcor (SpO2) or Masimo Rainbow SET (SpO2 or

4 USB-to-computer connector Provides a connection to an external computer for testing, data

lumen or single-lumen hoses.

combined SpO2/SpHb) in a self-contained module for easy replacement.

transfer, and software upgrades.

5 Power connection Provides an external AC power connection.

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Service manual Controls, indicators, and connectors 21

No. Feature Description

6 Ground lug (equipotential terminal) Supports electrical safety testing; terminal for connecting a

potential equalization conductor.

7 USB connectors Provides access to host USB connections for optional

accessories.

8 USB cable retainer Reduces strain on USB cables and connectors; helps prevent

cables from disconnecting.

Back view

No. Feature Description

1 Recess for mounting bracket Secures the monitor when mounted on the wall.

2 Ethernet RJ-45 Provides a hardwired connection to the computer network.

3 Li-ion battery Provides backup power to wall system.

4 Nurse call Provides a connection to the hospital nurse call system.

Accessory bin

Feature Description

No.

1 Accessory bin Stores accessories and organizes cables.

2 SpO2 holder Provides location to wrap SpO2 cable and attach SpO2 finger clip.

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22 Controls, indicators, and connectors Welch Allyn Connex® Integrated Wall System

Mounting materials

No. Feature Description

1 Wall mounting rail bracket and hardware Secures the wall system to the wall.

2 Accessory bin mounting bracket and

hardware

Secure accessory bin to the wall and provide routing and strain relief for power cord.

Page 27

Service menu

The Service tab is located inside Advanced settings. The Advanced tab provides password-protected access to the monitor's Advanced settings (or Admin mode), enabling nurse administrators, biomedical engineers, and/or service engineers to configure specific features. The Advanced tab also presents read-only information about the monitor.

Access the Service screens

Note You cannot access Advanced settings if sensors or physiological alarms are

active or if vital sign measurements are displayed.

1. Access the Advanced settings.

a. Touch the Settings tab.

b. Touch the Advanced tab.

c. Touch Enter password.

d. Enter your password and touch OK.

Note The default password is 6345, but your facility or

department might have a different password configured on your device.

Note If you lose or forget your Advanced settings password,

contact Customer Service, who will guide you through the password reset process.

The General tab appears.

2. Touch the Service tab.

The General tab appears.

3. Perform service tasks by navigating to the desired tabs and making selections.

4. When you finish your service tasks, touch Exit.

The Home tab appears.

General tab

Restore factory default settings

Note This process deletes the custom data file. All custom data will be lost.

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Service menu Welch Allyn Connex® Integrated Wall System

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the General tab.

3. Restore factory default settings:

• To restore radio settings to factory default values, touch Radio settings.

• To restore all current settings to factory default values, touch All settings.

A confirmation dialog appears.

4. Touch OK.

The factory default settings are restored.

If you selected Radio settings, the radio reboots, and the device remains powered on.

If you selected All settings, the device reboots.

Save the device configuration or custom data to a drive

You can save the device configuration or custom data (custom modifiers and custom scoring) to a USB flash drive. You can use the saved configuration to restore the device’s configuration or to copy this configuration to use on other devices. You can use the saved custom data to restore custom modifiers or custom scores or you can copy them to another device.

Note Not all flash drives are supported.

Note When saving the device configuration, the location ID and asset tag

information is not included in the configuration file.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the General tab.

4. Touch Save to USB.

A confirmation dialog appears. You can save the device configuration or custom data if either custom scores or custom modifiers are present.

5. Touch OK.

If the selected file or files already exist on the USB flash drive, a popup dialog appears with the message Device configuration file already exists. Select OK to continue with save and overwrite existing file or cancel.

6. Touch OK to save the data to the USB drive or touch Cancel to exit without saving.

A save confirmation message appears.

Note If the USB drive is incompatible, an information message Unable to save

configuration to USB message appears. Touch OK to continue.

Note The configuration file is saved as CONFIG.PMP. The custom data file is

saved as CUSTOMDATA.XML.

Load a device configuration or custom data

You can load a configuration from a USB flash drive to the device.

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Service manual Service menu 25

Note Not all flash drives are supported.

Note If your configuration includes radio parameters, make sure the radio is

enabled. The radio must be enabled before you can import radio parameters.

Note If a device setting is not available in the configuration file, the setting

returns to the factory default. This might be the case when the configuration file was saved from a device with a different firmware version.

Note Configuration files cannot be cloned between devices with different host

software, except where the version change is minor.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the General tab.

4. Select Configure from USB.

A confirmation dialog appears.

5. Select Device configuration and/or Custom data XML.

A confirmation dialog appears to confirm overwriting the existing configuration.

6. Select OK to proceed, or Cancel to quit.

The configuration from the USB flash drive overwrites the configuration on the device, and the device reboots.

Note If device configuration data is not present on the USB drive, that option will

Note If custom modifiers are not present on the USB drive, that option will be

Note If the configuration file is incompatible, an Unable to read configuration

Delete custom data

To delete custom data, you must restore the monitor to factory defaults. Restoring the monitor to factory defaults also deletes all configuration settings.

To restore the custom configuration settings, save the configuration file to a drive and reload the file after restoring factory defaults.

To determine if custom data is loaded on the device, complete these steps:

be disabled.

disabled.

from USB message appears. This might be the case if the configuration file was cloned from a device with different software version.

Go to the Service screens as described in "Access the Service screens."

2. Touch the Device tab.

A Custom file line displays the configuration name and the CRC in the Firmware version column.

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26 Service menu Welch Allyn Connex® Integrated Wall System

Enter an asset tag

You can enter an alpha-numeric identifier in the data field to serve as an asset tag for device identification.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the General tab.

3. Touch and enter up to 20 characters.

4. Touch OK.

Note If the device language changes, the asset tag remains

unchanged.

Send device information to PartnerConnect

The device sends technical information, such as log files, to PartnerConnect periodically. You can also manually send this information at any time by following this procedure.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the General tab.

3. Touch Sync with server.

Self-tests tab

Calibrate the touchscreen

This tab calibrates the touchscreen, if needed.

Go to the Service screens as described in “Access the Service screens.”

2. Touch the Self-tests tab.

3. Touch Start.

a. Touch the location indicated by the device. The device checks the current

calibration. If the location coordinates and touched location match, a Calibration Confirmation dialog appears. Touch OK to finish.

b. If the locations do not match, a calibration failure dialog appears. Touch

Calibrate, and then touch the screen as indicated. When calibration is complete, a Calibration Confirmation dialog appears. Touch OK to finish.

Logs tab

View an error or event log

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the Logs tab.

3. View a log report.

• To view an error log, select Error.

• To view an event log, select Event.

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Service manual Service menu 27

Save error and event logs to a USB flash drive

This feature is available in software versions 1.71.03 and later.

You can save a copy of the error and event logs to a USB flash drive.

Note Not all flash drives are supported.

1. Connect a flash drive to the USB port.

2. Go to the Service screens as described in “Access the Service screens.”

3. Touch the Logs tab.

4. Touch Save to USB.

A confirmation dialog appears.

5. Touch OK.

Copies of both log files are saved to the drive.

Device tab

View device and module information

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the Device tab.

Device and module information appears for you to view.

Licensing tab

View device licenses

Note After activating a new license, make sure to restart the device to complete

the activation process.

1. Go to the Service screens as described in “Access the Service screens.”

2. Touch the Licensing tab.

A list of available licenses appears. Checks indicate installed licenses.

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28 Service menu Welch Allyn Connex® Integrated Wall System

Page 33

Power-up sequence

The system performs a power-on self test (POST) each time the device is powered on. During power up, the device performs a comprehensive self test of the software. If software testing is successful, the device then tests internal hardware. If all tests are successful, the system completes power up and the Home tab appears.

To perform the POST:

1. Disconnect any patient cables connected to the device.

2. Insert a fully charged battery into the device.

3. Upon each power up, confirm the following:

a. The light bar flashes amber.

b. The Welch Allyn startup screen appears.

c. A beep sounds, followed by one chime.

Note If no chimes sound, replace the speaker as specified in

“Replace the speaker.”

d. The product line logo appears at the bottom of the screen.

e. The Home tab appears.

WARNING Equipment failure risk. The device includes a fan that circulates air through the device. If the fan does not run when you power up the device, remove it from use and inform qualified service personnel immediately. Do not use the device until the problem is corrected.

If the internal self-check is successful, the device shows its normal functions with all values blank and the device is ready for operation. If the self-check fails, an error message appears in the Device status area at the top of the screen. If a fault that could adversely affect the product is detected, the device enters a safe mode and stops monitoring patients. The device remains in safe mode until it is turned off or until it shuts down automatically after a period of inactivity.

If a system error is detected, the device becomes inactive until you press or until the device shuts down automatically. The device displays a system fault message that

contains a wrench icon( ) and a system fault code to aid service personnel and engineers in diagnosing the problem.

While in safe mode, the red LED bar and the piezo buzzer cycle on and off.

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30 Power-up sequence Welch Allyn Connex® Integrated Wall System

Page 35

Troubleshooting

This section provides the following tables to help you troubleshoot the system.

• Symptoms and solutions: These tables list symptoms you might observe, list

possible causes, and suggest actions that might eliminate the problem.

• Technical alarm messages: These tables list messages generated by the system

software when a problem is detected. The tables explain possible causes and suggest actions that can resolve the problem.

These tables can help you diagnose and fix a problem. They do not replace basic troubleshooting skills. You must still trace the source of the problem to the board or module level to decide the best course of action.

Welch Allyn does not support component-level repair to the board or module.

For available replacement parts, see “Field Replaceable Units.”

WARNING Do not perform troubleshooting on a system that is emitting smoke or exhibits other signs of excessive overheating. Disconnect the system from AC power and call Welch Allyn Technical Support immediately.

CAUTION Replace parts, components, or accessories only with parts supplied or approved by Welch Allyn. The use of any other parts can lead to inferior performance and will void the product warranty.

Symptoms and solutions

Power

Symptom Possible cause Suggested action

The device does not power up A new battery was installed Connect AC power to wake up

the battery.

The AC power is disconnected Connect AC power.

The power cord is defective Replace the power cord.

The battery is discharged Charge the battery.

The power button is defective Replace the power button.

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32 Troubleshooting Welch Allyn Connex® Integrated Wall System

Symptom Possible cause Suggested action

An internal connection is faulty Check the power-flex cable

connection at J6 on the main board.

Check the AC power harness connections from the IEC connector to the power supply.

Check the power harness from the power supply J2 to J30 on the main board.

Check the battery power harness from J2 on the battery connector board to J29 on the main board.

The power supply is defective Check the output voltage on the

power supply. The voltage should be 15 V ± 0.45V DC. If it is not, replace the power supply.

Hardware

The battery is defective Charge the battery for 5 hours. If

the battery icon on the display still shows an empty battery symbol, replace the battery.

The main board is defective Replace the main board.

The battery doesn’t charge or run time is low

The battery is defective Charge the battery for 5 hours. If

the battery icon on the display still shows an empty battery symbol, replace the battery.

The battery connector board is defective Check the battery connector

board for an open short or broken connector and replace if necessary.

The battery has reached the end of its useful life Use the service tool to check

cycle count. If the cycle count exceeds 300, replace the battery.

Mechanical Symptom Possible cause Suggested action

Noisy fan Dust build up Use canned air to blow dust out

of fan.

Fan is out of balance Replace fan.

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Service manual Troubleshooting 33

Mechanical Symptom Possible cause Suggested action

Cracks in housing Non-approved cleaning agents Replace plastic housing as

necessary.

Use only approved cleaning agents.

Display

Symptom Possible cause Suggested action

The touchscreen does not respond Software error Reboot the device. Press and

hold the power button until the device shuts down.

Note Any configuration settings not saved as default will be lost. Press the power button to restart.

The display is blank when the power is on

The touchscreen is out of calibration In Advanced Settings, touch the

Service > Self-tests tabs, then recalibrate the screen.

The touchscreen lock is activated To unlock the touchscreen, touch

at the bottom of the screen.

To disable the touchscreen lock, touch the Settings > Device tabs, then uncheck Allow display lock timeout.

An internal connection is faulty Check the connection at J48 on

the main board with display flex cable.

A display flex cable is broken Replace the touchscreen and

display assembly.

The main board has a faulty touchscreen controller

Excessive force or prolonged rubbing in an area of the touchscreen

The device is in Power-Saver mode Wake the display by touching the

Replace the main board.

Replace the touchscreen.

screen or the power button.

The device powered down after a period of inactivity

An internal connection is faulty Check the display harness

Turn on the device by pressing the power button. In Advanced Settings, touch the General >

Display tabs, then set Device power down to the desired

interval.

connections at the display and

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34 Troubleshooting Welch Allyn Connex® Integrated Wall System

Symptom Possible cause Suggested action

J19 on the main board. Replace the cable if damaged.

A cable is damaged Replace the cable.

The display is dim The brightness setting is too low Increase the brightness setting.

Touch the Settings > Device tabs, touch Defaults, then set Display brightness to the desired level.

The display has reached the end of its useful life Replace the display.

User interface

Symptom Possible cause Suggested action

Unable to access advanced settings or enter the advanced settings code

Desired profile does not appear in the Profiles tab

Communication

Symptom Possible cause Suggested action

Cannot communicate through the USB client connection

Patient monitoring is active or being simulated Discontinue patient monitoring or

stop the simulation.

The parameter alarm is on Dismiss the alarm.

Intervals are turned on Stop intervals.

The profile license is not installed In Advanced settings, touch the

Service > Licensing tabs. Verify that the profile license box is checked. If not, purchase the license and install it using the service tool.

The profile is not enabled In Advanced settings, touch the

Device tab, then check the profile(s) you want to enable.

The battery charge is low Connect the device to AC power

and allow the battery to fully charge.

The communications board does not receive power

The USB client is defective Test the connection by

Check the voltage from J49 on the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

connecting a PC running the service tool. Verify that the service tool is configured properly on the PC to

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Service manual Troubleshooting 35

Symptom Possible cause Suggested action

communicate with the device. See the service tool help files.

Replace the power cable to the communications board.

USB accessories do not communicate with the monitor

The device does not communicate via Ethernet with the computer network

The accessory is defective Replace with a known good

accessory.

The communications board is not receiving power Check the voltage from J49 on

the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

One or more USB host connections are defective Test the connection with a USB

thumb drive. If no power or enumeration is present, such as an LED on a thumb drive, replace the communications board.

A USB connection from the communications board to the main board is faulty

The device is not configured properly Check the settings with your

The communications board is not receiving power Check the voltage from J49 on

Verify that the USB cables are connected correctly.

Replace the USB cables.

network administrator.

the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

The radio does not connect to the network

The Ethernet connection from the main board is faulty

The network Ethernet switches are not set to the correct speed to work with the device

The cable run to the switch is too long Use a shorter patch cable.

The device is out of range of the access point Check the network status

The device is not configured properly Check the settings with your

The antenna is defective Check the antenna cable and

Test the internal Ethernet cable. Replace if necessary.

Verify that the shim is installed, if required, on the Ethernet cable connector at J11. See the reassembly notes for the main board.

Set the switches to 10 Mbps full duplex.

screen’s RSSI value.

network administrator.

antenna connection. Replace the cable and antenna if necessary.

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36 Troubleshooting Welch Allyn Connex® Integrated Wall System

Symptom Possible cause Suggested action

The communications board is not receiving power Check the voltage from J49 on

the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

Alarms

Symptom Possible cause Suggested action

The light bar does not turn on No alarm was triggered Verify that the light bar flashes

when the system starts.

Verify that the alarm is triggered by a visual indicator in the message status area and an audio alarm occurs.

There is a faulty connection Check the light-bar harness and

connections at the light bar and J46 on the main board. Replace the defective cable if necessary.

The light-bar board is defective Apply +3.3V to pin 1 of the

harness and ground to pin 2. Verify that the amber LEDs illuminate. Connect the ground to pin 3. Verify that the red LEDs illuminate. If one or both do not illuminate, replace the LED light bar.

The main board is defective Verify that there are +3.3V at pin

1 of J46 on the main board.

No audible alarm occurs No alarm was triggered Verify that the alarm is triggered

by a visual indicator in the message status area and light bar. Listen for audible sounds on start up.

The alarm audio is set to Off

The alarm audio is set too low

Touch the Alarms > General tabs, then select Alarm audio on.

In Advanced settings, touch the General > Alarms tabs, then disable Allow user to turn off general audio.

Touch the Alarms > General tabs, then set Volume to the desired level.

In Advanced settings, touch the General > Alarms tabs, then

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Service manual Troubleshooting 37

Symptom Possible cause Suggested action

set Minimum alarm volume to the desired level.

There is a faulty connection Check the speaker harness and

connections at the speaker and J12 on the main board. Replace the defective cable if needed.

The speaker is defective Replace the speaker.

The main board is defective Test speaker output using an

oscilloscope on J12.

NIBP

Symptom Possible cause Suggested action

SpO2

The NIBP frame on the display is blank

The USB cable is defective Replace the USB cable.

The NIBP module is not connected Check the internal USB

connection.

The NIBP module is not functional Check the error logs for NIBP

errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

If no NIBP error is logged, the main board might be defective

Replace the main board if necessary.

Symptom Possible cause Suggested action

The SpO2 frame on the display is blank

The USB cable is defective Replace the USB cable.

The SpO2 module is not connected Check the internal USB

connection.

The SpO2 module is not functional Check the error logs for SpO2

errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

If no SpO2 error is logged, the main board might be defective

Replace the main board if necessary.

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38 Troubleshooting Welch Allyn Connex® Integrated Wall System

SpHb

Symptom Possible cause Suggested action

ECG

The SpHb frame on the display is blank

The SpHb frame is unavailable The selected profile does not support SpHb. Change the profile to Intervals

The UI license is not installed. Purchase a license and install the

license using the service tool.

The wrong sensor is connected. Use a sensor that supports the

SpHb parameter.

The sensor or cable expired. Replace the sensor or cable.

The sensor or cable is defective. Replace the sensor or cable.

The Masimo SpO2 module does not have the SpHb parameter enabled.

Purchase the parameter and install using the service tool.

Monitoring or Continuous Monitoring.

Symptom Possible cause Suggested action

No LTA alarm associated with patient injury or death

LTA license not installed Remove device from service,

contact Welch Allyn Technical

V-Tach, V- Fib, Asystole detection disabled

Invalid data

Support, and return to Welch Allyn for service.

No LTA or ECG tile shows Arrhythmia detection off

No ECG pane Module not connected Check ECG module LED.

ECG tile disabled Patient type set to Neonate Change patient type to Adult or

Alarms off in advanced settings Turn on alarms.

No license Install license.

ECG module unable to detect arrhythmias Contact Welch Allyn Technical

Support.

Replace the module if necessary.

Faulty patient cable Check cable.

Faulty module cable

CVSM software does not support ECG Update software.

Profile not set to Continuous Monitoring Set profile to Continuous

Monitoring.

Pediatric.

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Service manual Troubleshooting 39

Symptom Possible cause Suggested action

No waveform Start button not activated

ECG gain too high Reduce ECG gain.

Patient type set to Neonate Change patient type to Adult or

Noisy waveform 50 or 60 Hz filter disabled Enable filter.

Wrong mains filter value selected (50 Hz versus 60 Hz)

Poor lead placement See DFU for proper placement.

No pacer or ECG tile shows pacer detection off

No alarming snapshot was autoprinted

Pacer detection Off

ECG module unable to detect pacer Contact Welch Allyn Technical

Automatic print on ECG alarm disabled In Advanced settings, touch the

Touch Start on ECG tile to begin waveform streaming.

Pediatric.

Set the filter to the correct mains frequency for your location.

Touch the Settings > Setup tabs, then touch the ECG vertical tab. Enable Patient has a pacemaker.

Support.

Replace the module if necessary.

Parameters tab, then touch the ECG vertical tab. Enable Automatic print on ECG alarm.

See printer section for print failures.

Device is not capable of printing Review ECG snapshots on the

device.

Snapshot button is disabled An alarming snapshot is in progress Wait for up to one minute for the

button to enable.

Less than one minute has elapsed between snapshots

Module LED off Module is not receiving power Replace cable.

Module LED yellow Internal error Power cycle device or disconnect

and then reconnect cable.

Module LED steady green Module powered on Working as designed.

Module LED flashing green Sending data Working as designed.

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40 Troubleshooting Welch Allyn Connex® Integrated Wall System

Weight scale

Symptom Possible cause Suggested action

Weight does not appear in manual parameter frame

Temperature

Symptom Possible cause Suggested action

The temperature frame on the display is blank

The weight was not selected in Advanced settings

The weight scale is not licensed Purchase a license and install the

The weight scale is not connected Check cables and connections.

The weight scale is not configured Consult the scale directions for

The USB cable is defective Replace the USB cable.

The temperature module is not connected Check the internal USB

In Advanced settings, touch the

Parameters tab, then select Weight.

Note You can select only four

manual parameters.

license using the service tool.

Use the service tool to test connectivity. Replace cables.

use.

connection.

The temperature module is not functional Check the error logs for

If no temperature error is logged, the main board might be defective

Braun ThermoScan PRO 4000 thermometer

Symptom Possible cause Suggested action

The thermometer batteries don’t charge

The dock LED is green, but the battery is low or depleted

The rechargeable battery pack no longer takes a charge

Primary AA batteries are installed in the thermometer

The dock is defective Replace the dock.

temperature errors. See the service tool help files for details on specific errors and suggested actions.

Replace the main board if necessary.

Replace the rechargeable battery pack.

Replace the batteries with a rechargeable battery pack.

Page 45

Service manual Troubleshooting 41

Symptom Possible cause Suggested action

Thermometer readings do not transfer to the device

The external USB cable is unplugged Check the external USB

The USB bus has stopped communicating with the Braun dock. (The device displays wrench error #00000014.)

Note For additional troubleshooting tips for the thermometer, see the

manufacturer’s product documentation.

Braun ThermoScan PRO 6000 thermometer

Symptom Possible cause Suggested action

Braun measurements are inaccurate Probe lens is displaced Examine lens for displacement. If you

Use inconsistent with DFU See DFU for proper operation. Perform

connection.

Reboot the host device.

observe a gap in the seam between the bezel and the lens, replace the thermometer.

the Braun functional verification test using the service tool or the manual test described in this manual. Replace as necessary.

Ingress of cleaning solutions has corroded the electronics

Temperature tile displays ++

Braun displays HI

Temperature tile displays - -

Braun displays LO

Braun displays “POS” error The infrared monitor cannot find a

Temperature taken is not within typical human temperature range. HI will be displayed when temperature is higher than 108°F (42.2°C).

Temperature taken is not within typical human temperature range. LO will be displayed when temperature is lower than 68°F (20°C).

temperature equilibrium and allows no measurement.

Replace the thermometer. Review cleaning procedures in the DFU.

Change probe cover to reset. Then, make sure thermometer is properly inserted and take a new temperature.

Change the probe cover to reset. Restrict patient movement and ensure that the positioning of the probe is correct and remains stable while taking new temperature.

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42 Troubleshooting Welch Allyn Connex® Integrated Wall System

Symptom Possible cause Suggested action

Braun displays “Err” error Ambient temperature is not within the

allowed operating range (50 – 104 °F or 10 – 40 °C) or changing too rapidly.

Braun display is blank or displays all icons

Braun displays Alert icon with “1” in lower right corner

System error

Technique Compensation (PerfecTemp) technology is not functioning or disabled

Wait 20 seconds until thermometer turns off automatically, then turn on again. Ensure thermometer and patient are in an environment for 30 minutes where the temperature is between 50 °F and 104 °F or 10 °C and 40 °C.

Wait 20 seconds until the thermometer turns off automatically, then turn on again. If error persists, reset the thermometer by removing the batteries and putting them back in.

If error still persists, batteries are dead. Insert new batteries.

If error still persists, contact local Welch Allyn Service Center or representative.

Open the temperature tab in Advanced settings to configure PerfecTemp*.

Braun displays Alert icon with “U” in lower right corner

C/F button is not functional Celsius only enabled Open the temperature tab in Advanced

Pulse timer button is not functional Pulse timer disabled Open the temperature tab in Advanced

Braun displays lock icon and is unresponsive

Braun display is blank after performing upgrade

*Host device Braun 6000 settings override configuration settings from Welch Allyn Service Tool.

Unadjusted Operating Mode is enabled

Security mode enabled and anti-theft timer has expired

Software upgrade was interrupted Remove and replace the battery while

Open the temperature tab in Advanced settings to configure Unadjusted Operating Mode*.

settings to disable Celsius only selection*.

settings to enable pulse timer*.

Return Braun thermometer to dock to unlock. Security mode is set on temperature tab in Advanced settings.

holding the C/F button or return to the dock while holding the C/F button. Retry upgrade.

Note For additional troubleshooting tips for the thermometer, see the

manufacturer’s product documentation.

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Service manual Troubleshooting 43

Manual parameters

Symptom Possible cause Suggested action

The manual parameter frame does not appear on the Home tab

BMI is not displayed The BMI parameter is not selected Select the BMI parameter in the

Barcode reader

Symptom Possible cause Suggested action

The barcode reader powers on but does not transfer data

No manual parameters are selected in Advanced settings

Height or weight was changed Adjusting the height or weight

Weight scale not connected BMI is available only from a

No license is installed Purchase a license and install

The barcode reader is not programmed to use USB Com Port Emulation mode

In Advanced settings, touch the Parameters tab, then select the desired manual parameters.

Note You can select only four manual parameters.

advanced settings.

clears BMI.

weight scale with height.

the license using the service tool.

Refer to the manufacturer's documentation to program the barcode reader to USB COM Port Emulation mode.

Handles

The barcode reader is not supported For Honeywell model 4600g

barcode readers, verify that the PID is set to 020A.

The barcode scanner did not enumerate properly Power cycle the Connex

device.

The patient ID or clinician ID do not match

The barcode scanner is not programmed to properly interpret the barcode

Program the barcode scanner to turn on required symbology and to also add or delete characters to form correct ID.

Symptom Possible cause Suggested action

The lamp does not illuminate There is no lamp in the handle head Install a lamp in the handle head.

The lamp is burned out Install a new lamp.

The other handle is off the cradle Place the other handle in the cradle.

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44 Troubleshooting Welch Allyn Connex® Integrated Wall System

Symptom Possible cause Suggested action

The system is not powered up Power up the system.

The PCBA is defective Replace the PCBA.

The handle assembly is defective Replace the handle assembly.

The lamp is too dim The rheostat setting is too low Increase the rheostat setting.

The PCBA is defective Replace the PCBA.

The handle assembly is defective Replace the handle assembly.

The lamp is too bright The rheostat setting is too high Decrease the rheostat setting.

The PCBA is defective Replace the PCBA.

The handle assembly is defective Replace the handle assembly.

The lamp brightness does not adjust The PCBA is defective Replace the PCBA.

Errors

The handle assembly is defective Replace the handle assembly.

The handle becomes very hot to the touch

The lamp has been on for an extended period of time

Return the handle to the cradle.

Note The GS 777 Wall Transformer will accommodate instrument heads of the Welch Allyn approved

Halogen and LED type bulbs without any manual adjustment. For information about instrument heads, follow the instructions provided in their directions for use.

Symptom Possible cause Suggested action

#000000001 An internal software error Power down and restart. If the

error persists, call Welch Allyn

#000000002 An unclassified hardware error

#000000003 Graphics RAM POST

#000000004 System RAM POST

#000000005 Watchdog POST

Technical Support for service.

#000000006 FLASH initiation failed

#000000007 A display system error

#000000008 A real-time clock error

#000000009 An audio system error

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Service manual Troubleshooting 45

Symptom Possible cause Suggested action

#000000010 An Ethernet system error

#000000011 The touchscreen controller failed

#000000012 Five or more SMBUS errors over a 1-minute period

occurred

#000000013 The communications module or main board failed

#000000014 Main board USB hub failure

#000000015 Software watchdog timer reset

Technical alarm messages

This section presents tables of technical alarm and information messages to help you troubleshoot issues on the device. For information about physiological, dialog, or informational messages, see the device’s directions for use.

When the device detects certain events, a message appears in the Device Status area at the top of the screen. Message types include the following:

•

Information messages appear on a blue background.

• Very low-priority alarms appear on a cyan background.

• Low- or medium-priority alarms appear on an amber background.

• High-priority alarms appear on a red background.

Technical alarm messages are low priority or very low priority unless noted in the Message column.

You can dismiss a message by touching the message on the screen, or, for some messages, you can wait for the message to time out.

To use these tables, locate the message that appears on the device in the left column of the table. The remainder of the row explains possible causes and suggests actions that can resolve the issue.

If you cannot resolve the issue, use the service tool to read the error log files or use the service tool to perform a functional test1 on the module reporting the message.

NIBP messages

Message Possible cause Suggested action

Alarm

NIBP air leak; check cuff and tubing connections.

Requires the service tool, Gold licensed edition.

The NIBP module has an air leak Check the cuff, tubing, and

connections for leaks. If no leaks are found, retake the measurement. If the message reappears, replace the NIBP module.

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46 Troubleshooting Welch Allyn Connex® Integrated Wall System

Message Possible cause Suggested action

NIBP not functional. Call for service.

Unable to determine NIBP; check connections; limit patient movement.

Unable to determine NIBP; check connections and tubing for kinks.

Incorrect NIBP cuff size; check patient type.

Internal errors or messaging errors occurred Check the error logs for NIBP

errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

The ambient temperature is out of range Use the monitor in the specified

temperature range.

Pressure exceeded the maximum limit for this patient mode

NIBP tubing on the outside of the device is kinked Check the connections and tubing

The NIBP module needs to be calibrated Perform NIBP calibration.

Tubing inside the NIBP module is kinked Replace the NIBP module.

A neonate cuff is in use with the monitor in adult or pediatric mode

Check connections; limit patient movement.

Clear the alarm and retry NIBP.

for kinks. Clear the alarm and retry NIBP.

Check the patient type and cuff size.

Clear the alarm and retry NIBP.

Inflation too quick; check NIBP cuff and tubing connections.

Unable to determine NIBP; check inflation settings.

Information

User cancelled NIBP reading. Blood pressure reading cancelled by user

Tube type does not match device configuration.

(NIBP measurement is available)

NIBP inflation was too quick Check the connections and tubing

Target pressure was too low Check inflation settings and

Too many attempts Change the inflation setting.

The tube type connected to the monitor does not match the NIBP configuration.

The single lumen switch on the NIBP connection is stuck

for kinks. Clear the alarm and retry NIBP.

change as necessary. Clear the alarm and retry NIBP.

Change the inflation setting.

Touch OK to dismiss. Touch NIBP Start button to

dismiss and restart the NIBP reading.

Touch OK to dismiss. Configure the NIBP advanced

settings to match the tube type, patient type, and algorithm.

Use a small screw driver to press the switch in and release until the spring returns the switch to the dual-lumen position.

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Service manual Troubleshooting 47

Message Possible cause Suggested action

Excessive patient movement. The NIBP reading was deemed not precise

SpO2 and SpHb messages

Message Possible cause Suggested action

Alarm

SpO2 not functional. Call for service.

Touch OK to dismiss. Limit patient movement and

restart the NIBP measurement.

The sensor is defective Replace the SpO2 sensor with a

known good sensor.

An internal error occurred Update the host software to the

current version.

Check the error logs for SpO2 errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

Attach SpO2 sensor to monitor. The sensor was not detected Check the sensor connection.

Replace the sensor.

Replace the SpO2 sensor. The sensor is faulty Replace the sensor.

Searching for SpO2. (High-priority alarm)

The sensor expired (applies only to SpO2 / SpHb sensors)

No sensor is connected Connect the sensor.

The patient cable is faulty Replace the cable.

The SpO2 module is faulty Verify module functionality by

The SpO2 sensor is not attached to the patient’s finger

Replace the sensor.

replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

Touch the alarm icon or the SpO2 frame to dismiss the alarm.

Set the SpO2 Alarm limits to Off.

Reattach the SpO2 sensor to the patient's finger.

Low SpO2 signal quality. Check sensor.

Poor sensor placement on the patient. Remove the sensor from the

patient and reapply.

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48 Troubleshooting Welch Allyn Connex® Integrated Wall System

Message Possible cause Suggested action

Low SpHb signal quality. Check sensor.

Low perfusion. Check sensor.

SpO2 mode only. Check sensor or cable.

SpO2 sensor expires in... Note This message appears only

on devices configured with SpHb.

Replace the SpO2 cable. The cable is not functioning properly Replace the cable.

The patient cable or sensor is defective Replace the patient cable or

sensor.

The SpO2 module is faulty Verify module functionality by

replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

The sensor is operating as an SpO2-only sensor because it failed to calibrate properly

The sensor will expire soon Replace the sensor.

The SpO2 module is faulty Verify module functionality by

Reattach the cable to the monitor.

Remove the sensor from the patient and reapply.

replacing the sensor with the applicable SpO2 tester. If the message persists after you have installed the SpO2 tester, replace the module.

Temperature messages (SureTemp)

Message Possible cause Suggested action

Alarm

Connect temperature probe. No probe is connected Connect a temperature probe and

The probe is faulty Replace the temperature probe.

The temperature module returned a connect probe message

The SureTemp temperature module is faulty Verify module functionality by

Insert correct color-coded probe well.

The probe well is missing Insert a temperature probe well.

The SureTemp temperature module is faulty Verify that the lever arm on the

retry.

Connect a temperature probe and try again. If a probe is already connected, replace the probe.

replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

back of the probe well housing is

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Service manual Troubleshooting 49

Message Possible cause Suggested action

engaging switch SW1 on the temperature PCBA. If the problem persists, replace the module.

Replace temperature probe. The probe is faulty Replace the temperature probe.

The SureTemp temperature module is faulty Verify module functionality by

replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

Retry temperature measurement. Note This message often

accompanies other temperature messages.

Temperature time limit exceeded. Retry temperature measurement.

Information

Tissue contact lost. Lost tissue contact while attempting to acquire

A probe heater or data error occurred Retry the temperature

User settings require adjustment Adjust the user settings and

The ambient temperature is out of range Operate the monitor within the

The SureTemp temperature module is faulty Verify module functionality by

The direct mode timed out Return the temperature probe to

temperature reading or acquired reading was performed with limited tissue contact

measurement. If the problem persists, replace the probe.

retry.

specified temperature range. Retry patient temperature measurement.

replacing the temperature probe with the CAL-KEY assembly. If the message persists after you have installed the CAL-KEY assembly, replace the module.

the probe well and retry measurement.

Touch OK to dismiss the message. Start a new temperature reading.

Temperature messages (Braun ThermoScan PRO)

Message Possible cause Suggested action

Alarm

Unable to detect temperature. Retry measurement.

Measurement was not taken

Measurement recalled from memory

Loose or broken USB cable

Retry measurement.

Check USB connection and cable.

Replace as necessary.

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50 Troubleshooting Welch Allyn Connex® Integrated Wall System

Message Possible cause Suggested action

Thermometer might be docked improperly.

Dead battery

Braun display is blank or battery icon shows one bar

Braun displays “POS” error

Braun displays “Err” error

Ambient temperature is outside the allowed operating range (50–104°F or 10–40°C) or changes too rapidly

Thermometer is not properly docked Re-dock thermometer.

Thermometer has dirty contacts Clean dock and thermometer

Recharge or replace battery.

Change the probe cover to reset.

Restrict patient movement and ensure that the positioning of the probe is correct and remains stable while taking new temperature.

Wait 20 seconds until thermometer turns off automatically, then turn on again.

Ensure thermometer and patient are in an environment for 30 minutes where the temperature is between 50ºF and 104ºF or 10ºC and 40ºC.

contacts with 70 percent isopropyl alcohol. See Cleaning Instructions for Braun ThermoScan PRO 6000.

Braun temperature not functional. Call for service.

Communication timeout

BDD transfer took longer than expected

POST did not complete or failed within the expected time period

POST failure

Braun display is all icons or blank

Unsupported parameter

Sensor data definition error (occurs when the proxy is unable to set parameters to the sensor using local DDS)

WACP serialization failure

Braun maximum battery voltage exceeded

Battery voltage is too high

Braun BDD compatibility

Braun BDD unexpected compatibility

Braun send message failure

Remove and replace battery to reset, then return thermometer to dock. If error persists, return for service.

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Service manual Troubleshooting 51

Message Possible cause Suggested action

Braun bridge failure

Temperature is not functional. Call for service.

ECG messages

Message Possible cause Suggested action

Alarm

Electrodes off: Device is configured for 5 leads, but

An internal error occurred

The USB cable is disconnected Check the USB cable.

The battery is depleted or missing Replace the batteries.

you are using 3 leads

Check the error logs for temperature errors. See the service tool help files for details on specific errors and suggested actions.

Check with Welch Allyn for software updates.

Ensure that the device is configured for the appropriate number of leads in Advanced settings.

IEC electrodes (N, F, R, L, C) (N, F, R, L, C) disconnected Connect (N, F, R, L, C) lead.

AHA electrodes (RA, LA, LL, V) (RA, LA, LL, V) disconnected Connect (RA, LA, LL, V)

lead.

Electrode x off. One lead is disconnected Check the connections of

all leads.

ECG not functional. ECG module error, WACP error, Data

failure

ECG module has not transmitted ECG data for the past 30 seconds

Check the USB cable and connections.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

Check the USB cable and connections.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

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52 Troubleshooting Welch Allyn Connex® Integrated Wall System

Message Possible cause Suggested action

ECG module disconnected Check the ECG module

connection to Connex device.

Unexpected alarm compatibility bits Restart the Connex device

and the ECG module; if the error persists, contact Customer Care.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

Cannot analyze ECG. Module unable to analyze the ECG

signal for V-Tach, V-Fib, and/or asystole

Cannot measure ECG. ECG module has been unable to detect

and ECG waveform for the past 30 seconds

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

Searching for respiration. ECG unable to measure patient

respirations

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

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Service manual Troubleshooting 53

Message Possible cause Suggested action

Respiration alarm limits changed. Respiration physiological alarm limits

Weight scale messages

Message Possible cause Suggested action

You are not using Lead II to view respiration

Attempting to acquire ECG/Impedance respiration

were modified because the respiration source changed

Ensure that you are viewing Lead II for respiration.

Check electrodes and leads, and replace as needed.

Check the patient cable connection to the ECG module.

Perform functional test. If the test fails, contact Customer Care and replace the ECG module if necessary.

Reset alarm limits.

Weight scale not functional. Call for service.

The weight scale is not operating properly Check the scale.

Communications module messages

Message Possible cause Suggested action

Communications module did not power on properly. Power down the device. (High-priority alarm)

The communications board is not connected properly to the main board

The communications board malfunctioned Replace the communications

Use the service tool to check connectivity with adapter.

Replace cables.

Replace adapter.

Check the USB connection at J4. Check the Power connection at J50. Check the voltage from J49 on the main board for +5.0V ±0.5V DC. Replace the main board if necessary.

board.

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54 Troubleshooting Welch Allyn Connex® Integrated Wall System

Radio messages

Message Possible cause Suggested action

Alarm

Radio not functional. Call for service.

Radio error. Power down and restart.

Unable to establish network communications. Radio out of network range.

A hardware failure occurred Replace the radio.

The radio has the wrong software Update the radio software.

The monitor and the radio failed to establish communication with each other

The radio is no longer communicating with the access point

Power down and restart the monitor.

If the problem persists, check the following:

• The USB and power connections from the main board to the communications board.

• The connection from the radio board to the communications board.

• Monitor and radio software compatibility.

Replace the radio if necessary.

Verify that the monitor is within the radio coverage area. Verify that the radio is correctly configured to the network. If this message appears intermittently, check the RSSI value.

Unable to establish network communications. Call for service.

Radio Software upgrade failed. The connection with the host was broken Re-establish the connection and

Information

Radio software upgrade in progress. Do not shut down.

Radio card rebooting; please wait. The radio is restarting as part of the software

Unable to get an IP address from the DHCP server Verify that a DHCP sever is

available on the network. The monitor requires an IP address from a DHCP server.

try again.

The radio was not provisioned correctly Reset radio to factory defaults

and try again.

Hardware error Replace the radio.

Radio software is being written to the radio Do not interrupt the upgrade until

complete.

Do not interrupt the upgrade until

upgrade

complete.

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Service manual Troubleshooting 55

Ethernet messages

Message Possible cause Suggested action

Alarm

Network not found; check network cable connection.

USB messages

Message Possible cause Suggested action

Alarm

External device not recognized. An unrecognized external device is connected Reconfigure the external device.

USB Communication failure. Call for service

A network cable is unplugged Check the network cable

connection.

A network connection is broken elsewhere Check network wiring.

Replace the external device.

Disconnect the unsupported device.

An internal or external device is connected but failed enumeration

Power down and restart.

Check the external device.

Check external and internal USB connections.

Information

External device not licensed for use.

Unable to save configuration to USB.

Unable to read configuration from USB.

USB accessory disconnected. The USB cable between an external device and

A device requiring a license has been connected to the USB connection

There was a problem writing the configuration file to the USB flash drive

There was a problem reading the configuration file to the USB flash drive

the monitor is disconnected

Obtain an authorization code from Welch Allyn to activate the license.

Use a Welch Allyn approved flash drive.

Verify that the flash drive is not locked.

Verify that there is space available on the flash drive.

Restart and try again.

Confirm that the USB cable is connected to the device and the monitor.

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56 Troubleshooting Welch Allyn Connex® Integrated Wall System

System messages

Message Possible cause Suggested action

Alarm

Set date and time. The date or time is not set Set the date and time.

The date or time is not set properly Reset the date or time.

Incompatible Welch Allyn device. A known USB device enumerates, but fails The device may be faulty. Test a

known good device.

Unexpected restart occurred. Call for service.

Information

Device shutdown is not available at this time.

A system error caused the monitor to restart Check Event and Error logs. Run

The device cannot perform an immediate shutdown

Battery power manager messages

Message Possible cause Suggested action

Alarm

Low battery 5 minutes or less remaining. (High-priority alarm)

Battery power is extremely low Plug the monitor into AC power.

the service tool verification test.

Touch OK to dismiss message. If any process is active, wait for it to complete before attempting shutdown.

If the device is unresponsive, hold down the power button until device shuts down.

Note Any configuration changes not saved as default are lost.

If not plugged in, the monitor automatically powers off.

Battery is absent or faulty. There is no battery in the monitor Insert a battery.

Battery is absent or faulty. Call for service.

Low battery 30 minutes or less remaining.

Information

Device is operating in battery mode.

The battery is faulty Replace the battery.

The battery power is low Touch the alarm icon to dismiss

or plug the monitor to AC power.

The AC power cord has been disconnected Touch the alarm icon to dismiss

or plug the monitor to AC power.

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Service manual Troubleshooting 57

Configuration Manager messages

Message Possible cause Suggested action

Alarm

Unable to load configuration; using factory defaults.

Functional error. Call for service. A critical configuration load error occurred Replace the main board.

Information

No connection for send. The monitor is not configured to the network

A configuration load error occurred Restore factory defaults. If the

Patient data management messages

Message Possible cause Suggested action

Alarm

error persists, replace the main board.

In Advanced settings, touch the

Data Management > Clinical Data tabs, then disable Automatically send on manual save if you only want to

store readings on the device.

If your want to send readings, then configure the device to the network.

Maximum number of patient records saved. Oldest record overwritten.

Information

No data saved. No patient data is available Take or enter vital signs before

Patient ID required to save data. The configuration requires a patient ID to save

Clinician ID required to save data. The configuration requires a clinician ID to save

Patient ID required to send data. The configuration requires a patient ID to send

Patient list is full. Delete some patients to add more.

The maximum number of patient records has been saved on the device

data

The maximum number of patients was exceeded Delete a patient from the list to

Go to the Review tab and delete old records to prevent the alarm from appearing when new records are saved.

saving.

In Advanced settings, touch the

Data management > Patient tabs, then disable Require patient ID to save readings.

In Advanced settings, touch the

Data management > Clinician tabs, then disable Require clinician ID to save readings.

Add a patient ID.

add a new patient.

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58 Troubleshooting Welch Allyn Connex® Integrated Wall System

Message Possible cause Suggested action

Stop intervals to select new patient.

No connection for send. No connectivity is available to support sending

Unable to identify clinician. The clinician ID or password is incorrect Confirm the clinician ID and

Unable to retrieve list. The device is unable to retrieve a patient list

Network messages

Message Possible cause Suggested action

Lost connectivity with host. The central station or other host

The device is set to take interval readings Stop intervals before changing

the patient.

Check the network connection. data manually or automatically sending data on manual save

from the network

application has stopped running or is not operating properly

Check the Radio Configuration

settings.

password (if applicable), and

retry.

Check the network connection.

Check the Radio Configuration

settings.

Verify that the server is available.

Confirm that the host application is running properly.

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Disassembly and repair

This chapter is divided into two major subsections, defined in the table below.

Section A Section B

(IEC 60601 3rd-edition compliant)

Devices meeting these criteria:

• Manufactured before 12/2017*

• MCE hardware version P3 or earlier (see the right pane on the Settings tab)

• Built before serial number* 100023374817

* See "Device serial number and model label" in the Appendix for serial number format and meaning.

Examine your device to determine which subsection you should follow to complete disassembly and repair procedures.

This overview includes exploded views of the front externior and rear interior that include callouts referencing the parts. These exploded views apply to both Section A and Section B, though certain parts are labeled as specific to one section or set of devices and not the other. In the instructions, numbers in parentheses refer to callouts in the exploded drawings. Except where otherwise noted, the reassembly procedure is the reverse of the disassembly procedure.

Each part’s disassembly instructions may include one or both of the following subsections:

•

Reassembly notes: This contains information specific to reassembly not addressed in the disassembly instructions, especially when reassembly is not a simple reverse of disassembly.

• When replacing the component: This contains information specific to installing a new option or replacement part.

Devices meeting these criteria:

• Manufactured after 12/2017*

• MCE hardware version P5 or later (see the right pane on the Settings tab)

• Built after serial number* 100023374817

WARNING Electrical shock hazard. Disconnect AC power before opening the device. Disconnect and remove the battery before opening the main chassis. Failure to do this can cause serious personal injury and damage to the device.

WARNING Risk of fire, explosion and burns. Do not short-circuit, crush, incinerate, or disassemble the battery pack.

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Disassembly and repair Welch Allyn Connex® Integrated Wall System

WARNING Safety risk. Do not attempt to service the device when the device is connected to a patient.

CAUTION Before disassembling the device or installing options, disconnect the patient from the monitor, power down the device, disconnect the AC power cord and any attached accessories (SpO2 sensors, blood pressure hoses and cuffs, temperature probes, ECG modules, Braun docks, and barcode scanners) from the device.

CAUTION Remove the probe well in the temperature module prior to disassembly.

CAUTION Perform all repair procedures at a static-protected station.

CAUTION When the device case is opened, regard all parts as extremely

fragile. Execute all procedure steps with care and precision.

CAUTION Observe screw torque specifications, especially with screws that secure directly into plastic standoffs.

CAUTION To avoid mismatching screws and holes, keep the screws for each piece with that piece as you remove modules and circuit assemblies. It is possible to mistakenly install machine screws in locations intended for plastite screws. Plastite screws in this device have a Torx-pan head.

CAUTION After performing any of these procedures and prior to returning the device to service, you must use the service tool, Gold licensed edition, to complete the full suite of functional tests to ensure that all systems are operating within the design specifications. For more information about these tests and the service tool, see “Functional verification and calibration.” If you do not have the service tool, contact Welch Allyn Technical Support.

For information about screws or connectors used in the device, see the Appendix.

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Service manual Disassembly and repair 61

Required tools and equipment

• #1 Phillips bit

• #2 Phillips bit

• #10 Torx bit

• Torque driver calibrated for 6.0 in-lb ±1.0 in-lb

• Torque driver calibrated for 7.5 in-lb ±0.5 in-lb

• Slotted screwdriver

• Tweezers

• Needle-nose pliers

• Spudger

• Tie-wrap tool calibrated for torque specification 5 INT

• Tie-wrap cutter

• Soft lens wipes

• Scissors or other cutting device

• Canned air

• Adhesive tape

• Pro Gaff tape

For information about screws and connectors used in the device, see the Appendix.

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62 Disassembly and repair Welch Allyn Connex® Integrated Wall System

Disassembly overview

The following chart provides an overview of the complete disassembly of the device. Most disassembly activities require that you complete a subset of the steps detailed here. The flow chart indicates the steps that must be completed in sequence to remove a particular component. Because a different sequence of preliminary steps might be required to remove certain components, you should use this flow chart as a reference at the start of every disassembly and component replacement procedure. A list of preliminary steps presented at the start of each disassembly topic provides the prerequisites for that disassembly task. (Some tasks in the flowchart are optional, depending on the scope of disassembly.)

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Section A

This section applies to devices manufactured before 12/2017, serial numbers before 100023374817, and MCE hardware version P3 or earlier.

Note If your device does not meet these criteria, see Section B for the correct

If the MCE hardware version is P2 or P3, DO NOT replace any components with service kits with the "3rd Ed" suffix. IEC 3rd Edition service kits are not compatible with hardware versions P2 and P3.

disassembly and repair instructions.

Power down the device

You can power down the device as follows: 1) on devices with 2.X software, briefly press the power button on the housing and then following the onscreen prompts, or 2) on all devices, use onscreen controls alone.

Option 1. After the device is powered up, briefly press of the power button to open an onscreen dialog with the following options:

•

Power down. Device behavior varies based on the active profile, whether or not patient trend data is stored, and whether or not patient context is established. While servicing the device, you need not be concerned about these details. They only matter to clinicians who are monitoring patients and storing patient data.

• Sleep. The Sleep button clears the display and puts the device into Display power-

saving mode.

• Cancel. The Cancel button dismisses the dialog.

Touch Power down and complete the power-down procedure.

Option 2. To use onscreen controls alone to power down the device, follow these steps:

Touch the Settings tab.

2. Touch the Device tab.

3. Touch Power down.

Note The next three sections address disassembly and repair steps you can

complete without removing the device from the wall or removing the battery. All steps presented after “Remove the system from the wall and remove the battery” require powering down as well as removing the device from the wall and removing the battery.

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64 Section A Welch Allyn Connex® Integrated Wall System

Exploded view, front exterior

No. Item No. Item

4 Side housing 23 Power button

5 SureTemp module 30 Blue insert

8 CIWS handle module assembly 41 NIBP module

9 Braun housing 42 SpO2 module

10 Platform module, blank 43 Braun dock

16 Module cover 44 Strain relief, comms, PW

17 Communications cover housing 45 Ear speculum dispenser, small

18 Cubby door 50 Screw, M3 x 0.5, Pan Phillips

20 Side mounting bracket/Module retaining plate

Replace modules in the bottom housing

1. Power down the system and disconnect the AC power cord.

2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

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Service manual Section A 65

4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Note The modules fit tightly in the housing but can become loose

5. Remove the module you want to replace.

Slide the module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cable from the rear of the module.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the left.

• The NIBP module must always be in the front-most slot.

over time. Support the modules to prevent them from falling out as you remove the module cover.

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66 Section A Welch Allyn Connex® Integrated Wall System

Replace modules in the main housing

Note Check how the end cap or Braun thermometer housing are attached to the

device. If bushings with captive screws attach the end cap or Braun thermometer housing to the side of the main housing as shown in step 1, proceed with the instructions as presented. If you don't see bushings with captive screws on the end cap or the Braun thermometer housing, then these parts are attached to the back of the chassis, not the right side. To remove these parts and access any front-facing modules, first remove the device from the wall. (See "Remove the system from the wall and remove the battery.")

1. Power down the system and disconnect the AC power cord.

2. Loosen the two captive #2 Phillips screws that hold the end cap or the Braun thermometer housing in place.

3. Remove the end cap or thermometer housing by sliding the piece away from the wall and then to the right.

4. Disconnect the USB cable from the Braun dock, which you can access from the rear of the Braun housing.

5. Locate and remove the module retaining plate by removing the four #2 Phillips screws.

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Service manual Section A 67

6. If SureTemp is installed, remove the module and the probe cover storage together, sliding them out the open end, and disconnect the USB cable.

7. Slide any blank face plates or modules to be removed toward the open end.

Note When removing any connected modules, disconnect the

USB cables before you remove the module.

Note If you are replacing a Braun 4000 thermometer with a Braun

6000 thermometer, you must also replace the dock.

Remove the Braun dock from the housing

1. Hold the Braun housing with your right hand and the dock with your left hand as shown. With your right-hand fingers inside the housing, gently press the housing toward you and away from the dock. At the same time, gently push the dock away from you until the dock unsnaps from the housing.

2. When the dock is completely loose, remove it from the housing.

Reassembly notes

• When aligning the module with the housing, the USB connection is on the bottom.

• The temperature module must always take up the last two spots closest to the end.

• The blank cover's beveled edge must be on the right when facing the device for proper alignment.

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68 Section A Welch Allyn Connex® Integrated Wall System

• When replacing the Braun dock, insert the bottom of the dock into the housing, align the molded ridges in the top of the dock with the slots in the top of the housing, and snap the dock into the housing.

Remove the system from the wall and remove the battery

1. Power down the system and disconnect the AC power cord.

2. Disconnect any detachable sensors and cables:

• Blood pressure cuffs and hoses

• Temperature probes and cables

• Braun thermometer

• SpO2 sensors and cables

• 3.5V instrument heads

3. Remove any items in the storage area and any other loose items before attempting to remove the system from the wall.

4. Close the storage area door and seal it with a piece of adhesive tape to prevent the door from opening.

5. Remove the speculum holder by lifting it up and away from the handle housing.

6. Remove the AC power cord.

7. Remove the communications connection cover.

Loosen the two captive screws, using a #2 Phillips screwdriver, until the cover is free from the housing.

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Service manual Section A 69

8. Remove the wall anchor screws using a #2 Phillips screwdriver.

9. Hold the bottom and top of the system and push it up to remove the system from the wall mounting bracket.

10. Place the wall system on a table or flat work surface so that the back of the wall system faces up. Ensure that the display is protected from pressure or getting scratched.

11. Locate the battery, indicated by

12. Remove the battery.

Remove the light-bar board

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Remove the two torx screws from the light-bar cover.

2. Remove the light bar and cover.

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3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. Remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

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Exploded view, rear interior

No. Item No. Item

1a LCD with touchscreen 31 LCD bezel

2a Main board 32 LCD frame

3 Main housing 33 Chassis

6 Platform fan assembly 34 Cable, USB client

7 Platform speaker assembly 35 Handle assembly

11 Module well assembly 36 PCBA: Platform 767 controller, pattern E

12 Light bar 37 Handle, cradle, and opticals assembly, cool blue

13 Power panel 38 Housing, front handle

14 Battery housing 39 Housing, rear handle

15 Module track 40 IR connector and wire assembly

19 Light-bar cover 50 Screw, M4 x 10, Pan head with nyloc (Large

Phillips screw)

21 Light-bar board 51 Screw, M3 x 0.5, Pan Phillips (Small Phillips screw)

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No. Item No. Item

22 Battery connector 52 Screw, Plastite #4-20 x .500 Pan head (Torx screw)

23 Power button and flex cable 53 CCH44-S10 P-clamp, 0.437

30 Blue insert

Remove the handle module assembly

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

1. Cut and remove the cable tie that holds the USB ferrite in place.

2. Disconnect the USB cable.

3. Remove the ferrite from the USB cable by pulling apart the two clips and lifting up.

4. Remove the four large Phillips screws while supporting the end of the handle module assembly.

5. Lift the handle module assembly up and away from the main assembly while guiding the USB cable through the slotted opening.

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Service manual Section A 73

Remove the handles

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

1. Remove the six large Phillips screws on the back of the assembly, then lift and remove the rear handle housing.

2. Disconnect the handle connector wires from the 767 Controller PCBA.

3. Lift and remove the handle cables from the front handle housing.

Reassembly note

When reconnecting the handle connection wires to the handle PCBA, the connecting wires must be facing up and away from the PCBA.

Remove the 767 controller PCBA

Complete the following preliminary steps:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

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• Remove the handle module assembly.

• Remove the handles.

1. Disconnect the two IR wire connectors from the handle PCBA.

2. Remove the three Torx screws.

3. Lift and remove the PCBA.

Reassembly note

When reconnecting the IR wire connectors to the handle PCBA, the connecting wires must be facing down and toward the cradle assemblies.

Remove the handle cradle and optical assemblies

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Remove the handles.

• Remove the 767 Controller PCBA.

1. On the rear of the assembly, disconnect both IR wires from the optical sensors.

2. Push in the snap tabs and remove the cradle assembly by pushing outward.

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Reassembly notes

• For ease of assembly, connect the IR wire assemblies to the optical sensors before attaching the handle cradle to the handle assembly housing.

• Attach the connector with the black and white wires to the optical detector (indicated by the letter "B" molded into the cradle plastic). Attach the connector with the red and white wires to the optical emitter. The wires should face inward once the handle cradle is assembled.

• Snap the handle cradle assembly into the front housing. Make sure that the cradle assembly tab and the beveled edge are at the top of the housing.

Open the chassis

Complete the following preliminary steps:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• If the Braun option is accessible from the side, remove it as described in "Replace modules from the main housing."

1. Complete one of the two substeps below based on your system details.

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• For systems built before July 15, 2011 with the Braun thermometer option

or end cap mounted to the rear chassis:

a. Remove the 6 screws as shown.

b. Disconnect the USB cable from the rear of the Braun housing. c. Remove the two large Phillips screws that hold the end cap or the

thermometer housing in place, and remove the end cap or thermometer housing.

• For systems built after July 15, 2011 with the Braun thermometer option or

end cap mounted to the side mounting bracket:

a. Remove the Braun module if present as described in "Remove modules from

the main housing."

b. Remove the 8 screws as shown.

2. Remove the two Torx screws securing the client USB connector to the housing, and then disconnect and remove the cable.

CAUTION Multiple wire connections are still connected between the front housing and the chassis. These must be disconnected before it is safe to completely separate the two pieces.

3. Carefully lift the top of the chassis away from the front housing while leaving slack in all cable connections.

From the communications board, disconnect the following in the order presented:

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Service manual Section A 77

Number Item

1 Small 4-pin connector

2 Mini USB cable

3 USB cable

4 Ethernet cable

4. Disconnect the power supply cable from the power supply.

5. Separate the chassis from the front housing.

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Exploded view, chassis

No. Item No. Item

33 Chassis 56 Radio board

51 Screw, M3 x 0.5, Pan Phillips (Small Phillips screw) 57 Antenna board

52 Screw, Plastite #4-20 x .500 Pan head (Torx screw) 58 Ground lug

54a Power supply, 60W 59 IEC connector

55 Communications board

Remove the power supply

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the green ground cable and the AC power harness from the power supply.

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Service manual Section A 79

2. Remove the four torx screws.

3. Remove the power supply.

Reassembly note

When reinstalling the power supply, orient the board so that the end of the board with the AC-to-power-supply (J1) connection is closest to the IEC connector.

Remove the ground lug, AC power harness assembly, and IEC connector

Note Do not disconnect the AC power harness from the IEC connector unless

you are replacing it. Once your disconnect the AC power harness, you cannot reuse it.

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the AC power harness and ground from the power supply.

2. To remove the ground lug:

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a. Remove the 10mm hex nut and slide out the star lock washer and the ground

wire (power supply) ring terminal.

b. Remove the next 10 mm hex nut and slide out the star lock washer, the ground

wire (mains) ring terminal, and the flat washer.

c. Remove the bare ground lug by pulling it out from the outside of the chassis.

3. To remove the IEC connector:

a. Disconnect the three power wires: blue neutral (N), green ground (G), and brown

line (L).

Note You must now replace the AC power harness. It cannot

be reused.

b. Push in on the three plastic release tabs to release the IEC connector.

Remove the communications board

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the mini-USB connection on the outside of the chassis.

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Service manual Section A 81

2. Turn over the chassis to access the communications board.

3. Remove the four Torx screws.

4. Lift the communications board from the chassis.

5. For systems with the radio option, remove the tape securing the antenna cable, and rotate the communications board counter-clockwise to clear the chassis. Make sure not to pull on the antenna cable. Turn the board over and place it inside the chassis.

6. If replacing the communications board, remove the radio board as described in "Remove the radio board and antenna."

Remove the radio board and antenna

Note Do not remove the radio antenna from the chassis unless you are replacing

the radio and antenna or the chassis.

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the ground lug, AC power harness, and IEC connector.

• Remove the communications board.

1. Remove the radio board:

a. Turn the communications board over to access the radio board, taking care to

avoid straining the antenna cable.

b. Remove the four small Phillips (machine) screws securing the radio board to the

communications board.

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c. Hold the communications board with one hand while grasping the radio board at

the opposite end from the antenna connection and pull the radio board away from the communications board.

2. Remove the antenna and antenna cable.

a. Remove the Pro Gaff tape securing the antenna cable to the housing.

b. Carefully disconnect the antenna cable by lifting up on the wire neck just before

c. Use a soft tool such as a spudger to separate the adhesive from the inside of the

Reassembly notes

If the antenna is removed:

•

Clean the chassis and mounting surface with 70 percent isopropyl alcohol.

• Peel the backing off the double-stick tape and affix it to the chassis antenna plate.

• Mount the antenna to the antenna plate. Make sure the PG terminal on the antenna board is facing outwards.

Antenna cable connection:

Attach the antenna cable to terminal G on the radio board. Attach the other end of

• the cable to the antenna on terminal PG.

the connection point.

chassis of the antenna plate.

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Service manual Section A 83

• Once the antenna, radio, and communications board are mounted and secure, secure the antenna cable to the housing with Pro Gaff tape.

Replace the chassis

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power supply.

• Remove the communications board.

• For systems with the radio option, remove the radio board and antenna.

Remove the USB client cable from the outer side of the chassis by removing the two Torx screws.

Disconnect or remove the light bar

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Remove the two Torx screws from the light-bar cover.

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2. Remove the light bar and cover.

3. Remove the light bar from the light-bar cover.

4. Disconnect the light-bar harness from the light-bar board.

5. If replacing the light-bar board, remove the light-bar board from the light bar by sliding the board out from the connector end.

Reassembly notes

• Insert the light-bar board by placing the end without the connector into the open end of the light bar.

• Slide the light-bar board into the light bar until the connector end is flush with the end of the light bar.

• Feed the light-bar harness wires through the slot so they do not get pinched during reassembly.

Disconnect or remove the fan

Complete the following preliminary steps:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

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Service manual Section A 85

• Open the chassis.

1. Disconnect the power cable from the fan harness connector.

2. Press the flanges on the sides of the fan harness connector and separate the fan connector from the power panel.

3. If you are removing the fan, slide the fan up and remove.

Reassembly note

Install the fan with the label facing the power panel.

Disconnect or remove the power panel

Complete the following preliminary steps:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

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• Remove the fan.

1. If you haven't done so already, disconnect the power cable from the fan harness connector.

2. Disconnect the two harness connectors from the battery board.

3. Disconnect the speaker connector wire.

4. Remove the two Torx screws that attach the power panel to the front housing and slide the power panel out of the housing.

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5. Pull the module handle assembly USB cable through the access hole in the power panel.

Reassembly notes

• Pull the module handle assembly USB cable through the access hole in power panel before securing the power panel to the housing.

• When installing the power panel in the housing, do not obstruct the channel or allow the battery board or battery housing to push the LCD flex sideways.

• Reconnect the speaker, battery board, and fan harnesses.

Remove the speaker

Complete the following preliminary steps:

• Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Carefully pry the speaker and adhesive away from the power panel.

2. Remove any remaining gasket material and clean the surface with 70 percent isopropyl alcohol.

3. Remove the paper on the speaker to expose the adhesive on the gasket.

4. Apply pressure to the outer radius of the speaker assembly to assure good adhesion with the power panel.

Replace the battery board

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the power panel.

1. Remove the battery compartment from the power panel by pushing in on the four plastic tabs.

2. Remove the two Torx screws from the battery compartment and remove the battery board.

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3. Secure the new battery board to the battery compartment with two Torx screws.

Disconnect or remove the power wire harness and main wire harness

Note If removing the main board or LCD, it is not necessary to cut wire ties

attaching the harness to the housing unless you are replacing the harness or the housing.

Note When replacing the main harness, you must disconnect the light-bar board

from the main harness.

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Disconnect the USB connections from the main board in positions 1 through 8 and 10 and 11. Remove the USB cables from the cable separator to clear the work area.

2. Disconnect the connectors as follows:

• To disconnect the power harness, disconnect the connectors at J29 and J30.

• To disconnect the main harness, disconnect the connectors at J34, J12, J49,

J46, and J45.

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3. If you are replacing the power harness, carefully cut the two wire ties and remove the harness.

4. If you are replacing the main harness, disconnect the main harness from the power panel, carefully cut the two wire ties, and remove the harness.

Reassembly notes

When replacing the harness standoff:

• Orient the harness standoff so that the main harness communications power, light bar, and fan wires run parallel to the top of the main board.

• Mount the harness standoff to the frame, aligning the edge of the standoff with the edge of the main board directly beneath the screw and securing the upper left-hand corner of the frame.

Section A 89

When replacing the main harness:

•

Align the shrink-wrapped sections and their wire tie anchors with the light-bar wires on the left.

• Feed the light-bar wires through the rectangular opening in the bottom of the housing to the right of the module well.

• Attach the harness to the main housing using the wire tie anchors closest to the display or front of the housing.

When replacing the power harness:

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• Align the shrink-wrapped sections with the wire tie anchors.

• Align the end with the wire tie closest to the end on the left to connext with the main board.

• Attach to the main housing using the wire tie anchors closes to the back of the housing.

• Route the connections from the main harness to the main board (communications power, light bar, fan) over the last USB cable, under the remaining USB cables, and through the harness standoff. Twist to lock the harness in the standoff.

Remove the main board

Complete the following preliminary steps:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

1. Disconnect the following on the main board:

a. The power button flex cable at J6.

b. The LCD harness at J19.

c. The LCD flex cable at J48.

2. Remove the Ethernet cable:

a. Disconnect the Ethernet cable from the Ethernet cable connector at J11 on the

main board.

b. Remove the screw that secures the Ethernet cable P-clamp to the main board.

c. Remove the Ethernet cable.

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3. Remove the seven small Phillips screws that secure the main board to the LCD frame.

4. Remove the main board.

Reassembly notes

• Ensure that the LCD flex cable is not under the main board.

• Route the Ethernet cable outside the PEM stud and not underneath the main board.

• Connect the Ethernet cable to the main board:

○

CAUTION The solder joint of the LCD connector (J48) is fragile. When inserting or removing the flex cable, do not stress the solder joint.

Verify whether your model contains PCBA 407574 revision B, C, or D. Revisions B and C have no logo on the top surface of the Ethernet port. Revision D has a logo on the top surface of the Ethernet port. See the figure below.

For PCBA 407574 revisions B and C, confirm that the Ethernet cable has a shim on one connector. Insert the connector with the shim into the Ethernet port.

For PCBA 407574 revision D, you can use either an Ethernet cable with a shim or an Ethernet cable without a shim. Insert the connector into the Ethernet port.

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Revisions B and C Revision D

• When securing the main board, install the screw near J30 after you install the Ethernet cable.

• If the light bar is not installed, install the light-bar harness into the housing, positioning the ferrite bead near the main board.

When replacing the main board

• When ordering the replacement main board, order the standard license for the model being serviced. You will receive an authorization code to enter in the service tool to reactivate the licenses included with the original configuration.

• Before installing the main board, record the serial number of the main board.

• After reassembling the system, use the service tool to provision the system as follows:

○

Enter the device’s serial number. This can be found on the bottom of the device.

○

Enter the main board (host controller) serial number.

○

Select the Connex Integrated Wall System from the device model dropdown menu.

○

Restore any previously licensed features by entering the authorization code in the service tool. Use the authorization codes that accompanied the replacement board, along with any additional license authorization codes previously installed. Record the device serial number on the license authorization code cards received with the replacement board and retain for future use. If the license is lost, you can reuse the authorization code on the same device.

○

Update the host controller software to the current version or version in use at your facility. If the required version of the host software is not available after connecting the device to the service tool, contact Welch Allyn Technical Support.

Remove the LCD

Complete the following preliminary steps:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Disconnect the power wire harness and the main harness.

• Remove the main board.

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Note Do not remove the LCD harness from the frame unless you are replacing

the harness or frame.

1. Remove the tape and disconnect the LCD harness from the LCD. For easier access to the connector, you can slide the ferrite bead closest to the connector up the harness.

2. Remove the four large Phillips (shoulder) screws that secure the LCD frame.

3. Remove the LCD frame.

Note Be sure to support the LCD if you are removing it with the

4. Remove the LCD.

Reassembly notes

• Ensure that the LCD flex cable is not under the LCD frame.

• Insert the display into the bezel in the front housing with the LCD flex cable on the lower right as shown. Verify that the LCD flex cable feeds through the bezel’s clearance feature. (The image on the left applies to older displays while the one on the right applies to newer displays.)

1st generation displays 2nd generation displays

frame. The foam strips on the LCD might cause the LCD to stick to the frame.

CAUTION The solder joint of the LCD connector (J48) is fragile. When inserting or removing the flex cable, do not stress the solder joint. Do not cause creases that may break the connections.

• Place the LCD frame over the LCD. Verify that the LCD frame does not cover the LCD flex cable.

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• Center the LCD and bezel in the main housing's molded channel with the bottom near the screw bosses.

• Replace the Pro Gaff tape in the frame opening under the display harness as shown.

• After connecting the display harness to the LCD, secure the harness to the LCD frame with Pro Gaff tape as shown.

When replacing the LCD frame

• Install a 3-inch strip of Pro Gaff tape over the top part of the LCD harness cutout to protect the LCD harness from abrasion.

• Install the LCD harness. Use isopropyl alcohol to clean the area in the scribed boxes where you will mount the harness's ferrite beads. Expose the sticky backing on the ferrite beads and mount them in the scribed rectangles.

Note If you don't place the ferrites correctly in marked areas, they

will obstruct the placement of other components like the MCE board.

• Replace the Pro Gaff tape in the frame opening under the display harness.

• After connecting the display harness to the LCD, secure it to the LCD frame with Pro Gaff tape as shown.

• After reconnecting the main harness, mount the harness standoff to the frame (see main harness reassembly notes).

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When replacing the LCD

• Peel the protective sheet from the LCD.

• Verify that the foam strips are installed on the back of the LCD near the top and bottom edges. On 1st generation displays (see image on the left), the foam strip extends halfway up from the bottom on both sides of the LCD. On 2nd generation displays, the foam strips are only on the top and bottom of the LCD (see image on the right).

1st generation displays 2nd generation displays

• Verify that the LCD flex cable feeds through the bezel's clearance feature.

• Insert the LCD into the bezel in the front housing with the LCD flex cable on the lower right as shown.

Remove modules in the bottom housing

Note These instructions are similar to "Replace modules in the bottom housing"

presented earlier, but this topic assumes that you are not simply replacing the modules. Instead, you have taken the wall system off the wall and are removing modules to replace the power button or the front housing. If you have already removed these modules, proceed to "Remove the module well." Otherwise, choose one of the two following options:

Option 1. Complete the following preliminary steps if your goal is to replace the front housing:

•

Power down the system and disconnect the AC power cord.

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

• Remove the light bar.

• Remove the power panel.

• Remove the power wire harness and the main wire harness.

Option 2. Complete the following preliminary steps if your goal is to replace the power button:

Power down the system and disconnect the AC power cord.

•

• Remove the system from the wall and remove the battery.

• Remove the handle module assembly.

• Open the chassis.

1. Power down the system and disconnect the AC power cord.

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2. Disconnect the NIBP hose and the SpO2 cable if present.

3. Remove the communications cover housing.

Loosen the two captive screws using a #2 Phillips screwdriver to remove the communications cover.

4. Remove the module cover.

Loosen the captive screw using a #2 Phillips screwdriver to remove the module cover.

Note The modules fit tightly in the housing but can become loose

over time. Support the modules as you remove the module cover.

5. Remove the modules.

Slide each module out of the housing by inserting a finger in the slot at each end of the module and gently pull the module away from the housing until you completely remove it.

6. Disconnect the USB cables from the rear of each module.

Welch Allyn Connex Service Manual

Contents

Symbols

Documentation symbols

Power symbols

Connectivity symbols

Miscellaneous symbols

Safety

Warnings and cautions

General safety considerations

Electrostatic discharge (ESD)

Overview

Purpose and scope

Related documents

Technical support services

Service loaners

Service options

Partners in Care service agreements

Warranty service

Non-warranty service

Repairs

Returning products

Recommended service intervals

Maintenance

The Welch Allyn Service Tool

Battery performance

About the battery

Best practices

Factors affecting battery operating time

Controls, indicators, and connectors

Front View

Front underside views

Back view

Accessory bin

Mounting materials

Service menu

Access the Service screens

General tab

Restore factory default settings

Save the device configuration or custom data to a drive

Load a device configuration or custom data

Delete custom data

Enter an asset tag

Send device information to PartnerConnect

Self-tests tab

Calibrate the touchscreen

Logs tab

View an error or event log

Save error and event logs to a USB flash drive

Device tab

View device and module information

Licensing tab

View device licenses

Power-up sequence

Troubleshooting

Symptoms and solutions

Power

Hardware

Display

User interface

Communication

Alarms

NIBP

SpO2

SpHb

Weight scale

Temperature

Braun ThermoScan PRO 4000 thermometer

Braun ThermoScan PRO 6000 thermometer

Manual parameters

Barcode reader

Handles

Errors

Technical alarm messages

NIBP messages

SpO2 and SpHb messages

Temperature messages (SureTemp)

Temperature messages (Braun ThermoScan PRO)

ECG messages

Weight scale messages