BeneVision N22 User manual

BeneVision N22/N19
Patient Monitor
Service Manual

I
Intellectual Property Statement
SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. (hereinafter called Mindray) owns the
intellectual property rights to this product and this manual. This manual may refer to information
protected by copyrights or patents and does not convey any license under the patent rights of Mindray,
nor the rights of others. Mindray does not assume any liability arising out of any infringements of patents
or other rights of third parties.
, , and are the registered trademarks or trademarks owned by
Mindray in China and other countries.
Revision History
This manual has a revision number. This revision number changes whenever the manual isupdated due
to software or technical specification change. Contents of this manual aresubject to change without prior
notice.
Version number: 8.0
Release time: 2021-03
© 2016 - 2021 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. All rights reserved.

II
Preface
Manual Purpose
This manual provides detailed information about the assembling, dissembling, testing and
troubleshooting of the equipment to support effective troubleshooting and repair. It is not intended to be
a comprehensive, in-depth explanation of the product architecture or technical implementation.
Observance of the manual is a prerequisite for proper equipment maintenance and prevents equipment
damage and personnel injury.
Intended Audience
This manual is for biomedical engineers, authorized technicians or service representatives responsible for
troubleshooting, repairing and maintaining the monitors
Passwords
A password may be required to access different modes. The passwords are listed below:
User maintenance: 888888
Manage Configuration: 315666
Factory maintenance: 332888
Demo mode: 2088

1
Contents
1 Safety ................................................................................................................................................................................. 1-1
1.1 Safety Information..........................................................................................................................................................................................1-1
1.1.1 Dangers ................................................................................................................................................................................................1-1
1.1.2 Warnings ..............................................................................................................................................................................................1-2
1.1.3 Cautions ...............................................................................................................................................................................................1-2
1.1.4 Notes .....................................................................................................................................................................................................1-3
1.2 Equipment Symbols ......................................................................................................................................................................................1-3
2 Operation Theory .............................................................................................................................................................. 2-1
2.1 Overview............................................................................................................................................................................................................2-1
2.2 Product System Architecture......................................................................................................................................................................2-1
2.2.1 Functions of the Main Control Module.....................................................................................................................................2-3
2.2.2 AC-DC Module ...................................................................................................................................................................................2-4
2.2.3 Functions and Socket Definitions of the DCDC Board........................................................................................................2-4
2.2.4 Front Housing Interface Board ....................................................................................................................................................2-7
2.2.5 iView Substrate..................................................................................................................................................................................2-7
2.3 Power System...................................................................................................................................................................................................2-8
2.3.1 Power Diagram of the Main Unit and the Module Rack ..................................................................................................... 2-8
2.3.2 The Secondary Screen of N22/N19 Uses Independent AC Adapter for Power Supply............................................ 2-9
2.4 Signal Logic Flow............................................................................................................................................................................................2-9
2.4.1 Startup Signal Flow..........................................................................................................................................................................2-9
2.4.2 Display Signal Flow ........................................................................................................................................................................2-10
2.4.3 Display Brightness Control..........................................................................................................................................................2-11
2.4.4 Module Initialization......................................................................................................................................................................2-12
3 WLAN Installation ............................................................................................................................................................. 3-1
3.1 Introduction......................................................................................................................................................................................................3-1
3.2 Network Deployment Process ...................................................................................................................................................................3-1
3.2.1 List of outputs....................................................................................................................................................................................3-2
3.3 Network Requirements ................................................................................................................................................................................3-3
3.4 Network Verification......................................................................................................................................................................................3-4
3.4.1 Tools and Resources.........................................................................................................................................................................3-4
3.4.2 Wi-Fi Signal Calibration...................................................................................................................................................................3-4
3.4.3 Network Verification Process........................................................................................................................................................3-5
3.5 Network Coverage Assessment with Patient Monitors ....................................................................................................................3-7
3.6 Recommended Devices for WLAN ...........................................................................................................................................................3-8
3.7 Setting Wireless Parameters for Patient Monitors ..............................................................................................................................3-8
3.8 Troubleshooting............................................................................................................................................................................................3-11
4 Testing and Maintenance ................................................................................................................................................. 4-1
4.1 Introduction......................................................................................................................................................................................................4-1

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4.1.1 Test Equipment..................................................................................................................................................................................4-1
4.1.2 Test Report ..........................................................................................................................................................................................4-1
4.1.3 Preventative Maintenance ............................................................................................................................................................4-1
4.1.4 Recommended Frequency............................................................................................................................................................4-2
4.2 Preventative Maintenance Procedures...................................................................................................................................................4-3
4.2.1 Visual Inspection...............................................................................................................................................................................4-3
4.2.2 NIBP Tests.............................................................................................................................................................................................4-4
4.2.3 Sidestream and Microstream CO2Tests ....................................................................................................................................4-6
4.2.4 AG Tests ................................................................................................................................................................................................4-8
4.3 Power On Test ................................................................................................................................................................................................4-11
4.4 Module Performance Tests........................................................................................................................................................................4-11
4.4.1 ECG Tests............................................................................................................................................................................................4-11
4.4.2 Resp Performance Test..................................................................................................................................................................4-12
4.4.3 SpO2Test ............................................................................................................................................................................................4-12
4.4.4 NIBP Tests...........................................................................................................................................................................................4-13
4.4.5 Temp Test...........................................................................................................................................................................................4-13
4.4.6 IBP Tests..............................................................................................................................................................................................4-13
4.4.7 C.O. Test ..............................................................................................................................................................................................4-15
4.4.8 Mainstream CO2Tests....................................................................................................................................................................4-16
4.4.9 Sidestream and Microstream CO2Tests ..................................................................................................................................4-17
4.4.10 AG Tests............................................................................................................................................................................................4-17
4.4.11 EEG Test............................................................................................................................................................................................4-17
4.4.12 BIS Test .............................................................................................................................................................................................4-18
4.4.13 RM Test .............................................................................................................................................................................................4-19
4.4.14 CCO/SvO2 Tests ..............................................................................................................................................................................4-20
4.4.15 PiCCO Test .......................................................................................................................................................................................4-20
4.4.16 NMT Tests ........................................................................................................................................................................................4-23
4.4.17 ANI Test ............................................................................................................................................................................................4-23
4.5 Nurse Call Relay Performance Test .........................................................................................................................................................4-25
4.6 Analog Output Performance Test ...........................................................................................................................................................4-26
4.7 Electrical Safety Tests...................................................................................................................................................................................4-26
4.8 Touchscreen Calibration (Resistive Touchscreen) .............................................................................................................................4-26
4.9 Recorder Check .............................................................................................................................................................................................4-27
4.10 Network Print Test......................................................................................................................................................................................4-27
4.10.1 Device Connection and Setup.................................................................................................................................................4-27
4.11 Device Integration Check........................................................................................................................................................................4-28
4.12 Battery Check...............................................................................................................................................................................................4-28
4.13 Mounting Check .........................................................................................................................................................................................4-29
4.13.1 Overall Test and Check of Installed System ........................................................................................................................4-29
4.14 Factory Maintenance ................................................................................................................................................................................4-29
4.14.1 Accessing Factory Maintenance Menu.................................................................................................................................4-29
4.14.2 Monitor Information ...................................................................................................................................................................4-30
4.14.3 Production Test .............................................................................................................................................................................4-31
4.14.4 Setup.................................................................................................................................................................................................4-31

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4.14.5 Debug...............................................................................................................................................................................................4-32
4.14.6 Power Info.......................................................................................................................................................................................4-32
4.14.7 ClinicalData ....................................................................................................................................................................................4-33
4.14.8 Transferring Clinical Data ..........................................................................................................................................................4-33
4.14.9 Software Version...........................................................................................................................................................................4-33
4.14.10 Monitor Information.................................................................................................................................................................4-33
5 Hardware Upgrade............................................................................................................................................................ 5-1
5.1 Overview............................................................................................................................................................................................................5-1
5.2 Upgrade of Parameter Function Modules .............................................................................................................................................5-1
5.3 Upgrade of Functional Assemblies ..........................................................................................................................................................5-3
5.3.1 Upgrading SMR .................................................................................................................................................................................5-3
5.3.2 Upgrading Secondary Display .....................................................................................................................................................5-4
5.3.3 Upgrading Split Unit........................................................................................................................................................................5-4
5.3.4 Upgrading Wireless Network Functions...................................................................................................................................5-4
5.3.5 Upgrading Handle Assembly .......................................................................................................................................................5-4
5.3.6 Upgrading Main Unit Battery .......................................................................................................................................................5-4
5.3.7 Upgrading iView System Functions...........................................................................................................................................5-4
6 Software Upgrade ............................................................................................................................................................. 6-1
6.1 Tool Software Installation Method ...........................................................................................................................................................6-1
6.2 PC and Monitor Connection Method......................................................................................................................................................6-2
6.3 How to enter the upgrade mode:.............................................................................................................................................................6-2
6.4 Software Tool Upgrade Operations..........................................................................................................................................................6-2
6.5 Guide to Software Upgrade Operations.................................................................................................................................................6-4
6.5.1 System Software Upgrading Method........................................................................................................................................6-4
6.5.2 Upgrading Module Rack Software .............................................................................................................................................6-4
6.6 Upgrading Secondary Display Software................................................................................................................................................6-5
6.7 Upgrading Module Software......................................................................................................................................................................6-6
6.8 Guide to Upgrade through a USB Disk ...................................................................................................................................................6-6
6.8.1 Directory Structure Preparation for Upgrade through a USB Disk................................................................................. 6-6
6.8.2 Inserting the USB Disk into the USB port of the Monitor...................................................................................................6-7
6.8.3 Entering Upgrade through the USB Disk .................................................................................................................................6-7
6.8.4 Selecting the File for Upgrade through the USB Disk .........................................................................................................6-7
6.8.5 Upgrade Completed through the USB Disk............................................................................................................................6-8
6.9 Upgrading CAA license function ..............................................................................................................................................................6-9
7 Troubleshooting................................................................................................................................................................ 7-1
7.1 Blank Screen upon Startup .........................................................................................................................................................................7-1
7.1.1 Software Version Check..................................................................................................................................................................7-2
7.2 Technical Alarm Check..................................................................................................................................................................................7-2
7.3 Troubleshooting Guide.................................................................................................................................................................................7-5
7.3.1 Power On/Off Failures .....................................................................................................................................................................7-5
7.3.2 Display Failures..................................................................................................................................................................................7-6

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7.3.3 Module Rack Failures.......................................................................................................................................................................7-7
7.3.4 Alarm Failures.....................................................................................................................................................................................7-8
7.3.5 Output Interface Failures...............................................................................................................................................................7-9
7.3.6 Power Supply Failures .....................................................................................................................................................................7-9
7.3.7 Network Related Problems .........................................................................................................................................................7-10
7.3.8 Software Upgrade Problems ......................................................................................................................................................7-11
7.3.9 Technical Alarm Messages...........................................................................................................................................................7-11
8 Parts ................................................................................................................................................................................... 8-1
8.1 Main Unit ...........................................................................................................................................................................................................8-1
8.1.1 Exploded View....................................................................................................................................................................................8-1
8.1.2 Parts List ...............................................................................................................................................................................................8-1
8.2 D22/D19 Display Assembly (Capacitive Screen).................................................................................................................................8-2
8.2.1 Exploded View....................................................................................................................................................................................8-2
8.2.2 Parts List ...............................................................................................................................................................................................8-3
8.3 D22/D19 Display Assembly (Resistive Screen)..................................................................................................................................... 8-4
8.3.1 Exploded View....................................................................................................................................................................................8-4
8.3.2 Parts List ...............................................................................................................................................................................................8-4
8.4 Display Cover Assembly ...............................................................................................................................................................................8-6
8.4.1 Exploded View....................................................................................................................................................................................8-6
8.4.2 Parts List ...............................................................................................................................................................................................8-6
8.5 Module Rack.....................................................................................................................................................................................................8-7
8.5.1 Exploded View....................................................................................................................................................................................8-7
8.5.2 Parts List ...............................................................................................................................................................................................8-7
8.6 iVIEW Module(Win7/win10 system) ........................................................................................................................................................8-8
8.6.1 Exploded View....................................................................................................................................................................................8-8
8.6.2 Parts List ...............................................................................................................................................................................................8-8
8.7 Main Unit Separated Installation Auxiliary Accessories....................................................................................................................8-9
8.7.1 Exploded View....................................................................................................................................................................................8-9
8.7.2 Parts List ...............................................................................................................................................................................................8-9
8.8 MPM module (M51A) ..................................................................................................................................................................................8-10
8.8.1 Exploded View..................................................................................................................................................................................8-10
8.8.2 Parts List .............................................................................................................................................................................................8-10
8.9 M51C Module (Platinum)...........................................................................................................................................................................8-11
8.9.1 Exploded View..................................................................................................................................................................................8-11
8.9.2 Parts List .............................................................................................................................................................................................8-11
8.10 Others.............................................................................................................................................................................................................8-13
9 Disassembly and Repair ................................................................................................................................................... 9-1
9.1 Tools.....................................................................................................................................................................................................................9-1
9.2 Preparations for Disassembly.....................................................................................................................................................................9-1
9.3 Whole Unit Disassembly ..............................................................................................................................................................................9-1
9.3.1 Disassembling Display and Main Unit (Main Unit and Display Integrated Installation)......................................... 9-2
9.3.2 Removing Handle/Encoder (Optional Encoder)....................................................................................................................9-3

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9.3.3 Removing Handle Cover ................................................................................................................................................................9-4
9.3.4 Removing Main Unit Housing/Main Unit Interface Adapter Board (Main Unit and Display
Separated Installation) ..............................................................................................................................................................................9-4
9.3.5 Removing Display Interface Adapter Board (Main Unit and Display Separated Installation)............................... 9-5
9.4 Disassembling Display (Resistive Touchscreen) .................................................................................................................................. 9-6
9.4.1 Removing Display Rear Housing Assembly (D19) ................................................................................................................ 9-7
9.4.2 Removing Display Rear Housing Assembly (D22..................................................................................................................9-7
9.4.3 Removing Switch Keypad Board.................................................................................................................................................9-8
9.4.4 Removing Display Interface Board/Touchscreen Panel...................................................................................................... 9-8
9.4.5 Removing USB Board ......................................................................................................................................................................9-9
9.4.6 Removing Display Screen............................................................................................................................................................9-10
9.4.7 Removing LED Board/Indicator Board....................................................................................................................................9-11
9.5 Disassembling Display (Capacitive Touchscreen) .............................................................................................................................9-11
9.5.1 Removing Display Rear Housing Assembly (D19) ..............................................................................................................9-12
9.5.2 Removing Display Rear Housing Assembly (D22) ..............................................................................................................9-12
9.5.3 Removing Switch Keypad Board...............................................................................................................................................9-13
9.5.4 Removing Display Interface Board/Touchscreen Panel....................................................................................................9-13
9.5.5 Removing USB Board ....................................................................................................................................................................9-14
9.5.6 Removing LED Board/Indicator Board....................................................................................................................................9-15
9.6 Disassembling Main Unit...........................................................................................................................................................................9-15
9.6.1 Removing iView Assembly (iView Assembly Optional) ....................................................................................................9-15
9.6.2 Removing iView Assembly Support Board/USB Interface Board (iView Assembly Optional) ............................9-16
9.6.3 Removing Battery...........................................................................................................................................................................9-16
9.6.4 Removing ACDC Power Board ...................................................................................................................................................9-17
9.6.5 Removing DCDC Power Management Board.......................................................................................................................9-18
9.6.6 Removing Antenna Module and Antenna Cable................................................................................................................9-18
9.6.7 Removing SSD Hard Disk.............................................................................................................................................................9-19
9.6.8 Removing Main Control Board ..................................................................................................................................................9-19
9.6.9 Removing Battery Backplane .....................................................................................................................................................9-20
9.7 Disassembling the Module Rack.............................................................................................................................................................9-20
9.7.1 Disasembling the Handle and Hooks......................................................................................................................................9-20
9.7.2 Disassembling the Rear Case of Module Rack .....................................................................................................................9-21
9.7.3 Disassembling the Module Rack Interface Board...............................................................................................................9-22
9.7.4 Disassembling the Infrared Backplane of Module Rack ...................................................................................................9-22
9.8 Disassembling the M51C Module...........................................................................................................................................................9-23
9.8.1 Disassembling the Front Panel Assembly..............................................................................................................................9-23
9.8.2 Disassembling the Parameter Board .......................................................................................................................................9-24
9.8.3 Disassembling the SpO2board..................................................................................................................................................9-24
9.8.4 Disassembling the Infrared Board ............................................................................................................................................9-24
9.8.5 Removing the Pump and Valve .................................................................................................................................................9-25
A Electrical Safety Inspection..............................................................................................................................................A-1
A.1 Power Cord Plug .............................................................................................................................................................................................A-1
A.1.1 The Power Plug .................................................................................................................................................................................A-1

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A.2 Device Enclosure and Accessories ...........................................................................................................................................................A-2
A.2.1 Visual Inspection...............................................................................................................................................................................A-2
A.2.2 Contextual Inspection ....................................................................................................................................................................A-2
A.3 Device Labeling ..............................................................................................................................................................................................A-2
A.4 Protective Earth Resistance ........................................................................................................................................................................A-2
A.5 Earth Leakage Test .........................................................................................................................................................................................A-4
A.6 Patient Leakage Current ..............................................................................................................................................................................A-6
A.7 Mains on Applied Part Leakage ................................................................................................................................................................A-8
A.8 Patient Auxiliary Current ..........................................................................................................................................................................A-10
A.9 Scheduled Electrical Safety Inspection ...............................................................................................................................................A-11
A.10 Electrical Safety Inspection after Repair...........................................................................................................................................A-14