Mindray H-046-011261-00-N17-15-12-Service-Manual-FDA-5.0 Building a charger

BeneVision N17/BeneVision N15/
BeneVision N12

Patient Monitor

Service Manual

Copyright 2018-2019 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. All rights reserved.

Release time: January 2019

Revision 5.0

BeneVision N17/BeneVision N15/BeneVision N12 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.

Mindray intends to maintain the contents of this manual as confidential information. Disclosure of the

information in this manual in any manner whatsoever without the written permission of Mindray is strictly

forbidden. Release, amendment, reproduction, distribution, rent, adaption and translation of this manual

in any manner whatsoever without the written permission of Mindray is strictly forbidden.

, is the trademark, registered or otherwise, of Mindray in China and other countries. All

other trademarks that appear in this manual are used only for editorial purposes without the intention of

improperly using them. They are the property of their respective owners.

This posting serves as notice under 35 U.S.C.§287(a) for Mindray patents:

http://www.mindrayna.com/patents.

WARNING

 Federal Law (USA) restricts this device to sale by or on the order of a physician or other

practitioner

licensed by U.S. state law to use or order the use of this device.

NOTE

 This manual describes all features and options. The equipment may not have all of them. Contact

Mindray Technical Support department for any questions.

II BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Manufacturer’s Responsibility

Contents of this manual are subject to changes without prior notice.

Mindray is responsible for safety, reliability and performance of this product only on the condition that:

 All installation operations, expansions, changes, modifications and repairs of this product are

conducted by Mindray authorized personnel;

 The electrical installation of the relevant room complies with the applicable national and local

requirements;

 This product is operated under strict observance of the operator’s manual.

Return Policy

In the event that it becomes necessary to return a unit to Mindray, follow the instructions below.

1. Obtain a return authorization.

Contact the Mindray Service Department and obtain a Mindray Customer Service Authorization

Number. The Mindray Customer Service Authorization Number must appear on the outside of the

shipping container. Return shipments will not be accepted if the Mindray Customer Service

Authorization Number is not clearly visible. Please provide the model number, serial number, and a

brief description of the reason for return.

2. Freight policy

The customer is responsible for freight charges when this product is shipped to Mindray for service

(including any relevant customs fees or other freight related charges).

3. Return address

Please send the part(s) or equipment to the address offered by Customer Service Department.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual III

Service

Mindray maintains a network of service representatives and factory-trained distributors. Prior to

requesting service, perform a complete operational check of the instrument to verify proper control

settings. If operational problems continue to exist, contact Mindray service.

In North America contact the Service Department at [phone], ext: 8116 for Technical Support or

[phone] for assistance in determining the nearest field service location.

Please include the instrument model number, the serial number, and a description of the problem with all

requests for service.

Any questions regarding the warranty should be directed to your local sales or service representative.

NOTE

 Upon request, Mindray provides circuit diagrams, component part lists, descriptions, calibration

instructions, or other information which assist the user’s appropriately qualified technical

personnel to repair those parts of the equipment which are designated by Mindray DS USA, Inc. as

repairable.

Contact Information

Manufacturer:

Address:

Tel:

Fax:

Website:

Distributor:

Address:

Tel:

Website:

Shenzhen Mindray Bio-Medical Electronics Co., Ltd.

Mindray Building, Keji 12th Road South, High-tech Industrial Park, Nanshan, Shenzhen

518057 P.R. China

[phone]

[phone]

www.mindray.com

Mindray DS USA, Inc.

800 MacArthur Boulevard, Mahwah, New Jersey 07430 USA

1.800.288.2121, 1.201.995.8000

www.mindray.com

IV BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Preface

Manual Purpose

This manual provides detailed information about the assembly, disassembly, 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. Use of the

manual is necessary for proper equipment maintenance and will help to eliminate equipment damage

and personal injury.

This manual is based on the maximum configuration; therefore, some contents may not apply to your

monitor. If you have any question, please contact our Customer Service Department.

Intended Audience

This manual is for biomedical engineers, authorized technicians or service representatives responsible for

troubleshooting, repairing and maintaining the patient monitors.

Contact your local Mindray Service Organization for information on product courses which address service

and support for this product.

Passwords

A password may be required to access different modes within the monitor. The passwords are listed below:

 User maintenance: MIN888 (User adjustable)
 Configuration mode: MIN315 (User adjustable)

It is recommended that the user should change the passwords for user maintenance and configuration

mode once they take ownership of the equipment.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual V

FOR YOUR NOTES

VI BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Contents

1 Safety ................................................................................................................................................................................. 1-1

1.1 Safety Information .......................................................................................................................................................................................... 1-1

1.1.1 DANGER ................................................................................................................................................................................................ 1-1

1.1.2 Warnings .............................................................................................................................................................................................. 1-2

1.1.3 Cautions ............................................................................................................................................................................................... 1-2

1.1.4 Notes ..................................................................................................................................................................................................... 1-2

1.2 Equipment Symbols ....................................................................................................................................................................................... 1-2

2 Operation Theory .............................................................................................................................................................. 2-1

2.1 Overview ............................................................................................................................................................................................................ 2-1

2.2 Product System Architecture ...................................................................................................................................................................... 2-1

2.2.1 Main Control Board .......................................................................................................................................................................... 2-2

2.2.2 Internal Module Rack COM Board ............................................................................................................................................... 2-3

2.2.3 Power Architecture ........................................................................................................................................................................... 2-3

2.2.4 Independent Display Board (for the N17 Only) ..................................................................................................................... 2-4

2.2.5 iView Module (for the N17 Only) ................................................................................................................................................. 2-4

2.2.6 Alarm LAMP Board ........................................................................................................................................................................... 2-4

2.2.7 Power Switch Board ......................................................................................................................................................................... 2-4

2.3 Data Logic Flow ............................................................................................................................................................................................... 2-4

3 Testing and Maintenance .................................................................................................................................................. 3-1

3.1 Introduction ...................................................................................................................................................................................................... 3-1

3.1.1 Test Equipment .................................................................................................................................................................................. 3-1

3.1.2 Preventative Maintenance ............................................................................................................................................................. 3-1

3.1.3 Recommended Frequency ............................................................................................................................................................ 3-2

3.1.4 Visual Inspection ............................................................................................................................................................................... 3-3

3.1.5 NIBP Tests ............................................................................................................................................................................................. 3-4

3.1.6 Sidestream and Microstream CO2 Tests .................................................................................................................................... 3-6

3.1.7 AG Tests ................................................................................................................................................................................................ 3-8

3.2 Power On Test ................................................................................................................................................................................................ 3-11

3.3 Module Performance Tests ....................................................................................................................................................................... 3-11

3.3.1 ECG Tests ........................................................................................................................................................................................... 3-11

3.3.2 Resp Performance Test ................................................................................................................................................................. 3-12

3.3.3 SpO2 Test ........................................................................................................................................................................................... 3-12

3.3.4 NIBP Tests .......................................................................................................................................................................................... 3-13

3.3.5 Temp Test .......................................................................................................................................................................................... 3-13

3.3.6 IBP Tests ............................................................................................................................................................................................. 3-13

3.3.7 C.O. Test ............................................................................................................................................................................................. 3-15

3.3.8 Sidestream and Microstream CO2 Tests .................................................................................................................................. 3-15

3.3.9 AG Tests ............................................................................................................................................................................................. 3-15

3.3.10 EEG Test ........................................................................................................................................................................................... 3-16

3.3.11 BIS Test ............................................................................................................................................................................................. 3-17

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 1

3.3.12 CCO/SvO2 Tests .............................................................................................................................................................................. 3-18

3.3.13 NMT Tests ........................................................................................................................................................................................ 3-18

3.4 Nurse Call Relay Performance Test ......................................................................................................................................................... 3-20

3.5 Analog Output Performance Test ........................................................................................................................................................... 3-20

3.6 Electrical Safety Tests .................................................................................................................................................................................. 3-20

3.7 Recorder Check ............................................................................................................................................................................................. 3-21

3.8 Network Print Test ........................................................................................................................................................................................ 3-21

3.8.1 Device Connection and Setup ................................................................................................................................................... 3-21

3.9 Battery Check ................................................................................................................................................................................................. 3-22

3.10 Mounting Check ......................................................................................................................................................................................... 3-22

3.10.1 Safety check ................................................................................................................................................................................... 3-22

3.10.2 Overall Test and Check of Installed System ........................................................................................................................ 3-22

4 Troubleshooting ................................................................................................................................................................ 4-1

4.1 Introduction ..................................................................................................................................................................................................... 4-1

4.2 Part Replacement ........................................................................................................................................................................................... 4-1

4.3 Check before Powering on the Monitor ................................................................................................................................................. 4-1

4.4 Software Version Check ................................................................................................................................................................................ 4-1

4.5 Technical Alarm Check .................................................................................................................................................................................. 4-2

4.6 Troubleshooting Guide ................................................................................................................................................................................ 4-2

4.6.1 Power On/Off Failures ..................................................................................................................................................................... 4-2

4.6.2 Display Failures .................................................................................................................................................................................. 4-3

4.6.3 Module Rack Failures ...................................................................................................................................................................... 4-4

4.6.4 Alarm Failures .................................................................................................................................................................................... 4-5

4.6.5 Output Interface Failures ............................................................................................................................................................... 4-6

4.6.6 Power Supply Failures ..................................................................................................................................................................... 4-7

4.6.7 Network Related Problems ........................................................................................................................................................... 4-7

4.6.8 Device Integration Failures ........................................................................................................................................................... 4-8

4.6.9 Recorder Failures .............................................................................................................................................................................. 4-9

5 Hardware Configuration Options .................................................................................................................................... 5-1

5.1 Overview ........................................................................................................................................................................................................... 5-1

5.2 Optional Parameter Function Modules .................................................................................................................................................. 5-2

5.3 Optional Functional Assemblies ............................................................................................................................................................... 5-3

5.3.1 Installing an SMR .............................................................................................................................................................................. 5-3

5.3.2 Setting up Wireless Network Functions ................................................................................................................................... 5-3

5.3.3 Upgrading Recorder ........................................................................................................................................................................ 5-4

5.3.4 Upgrading iView System ................................................................................................................................................................ 5-4

5.3.5 Upgrading Independent Display Function ............................................................................................................................. 5-4

6 Repair and Disassembly .................................................................................................................................................... 6-1

6.1 Tools..................................................................................................................................................................................................................... 6-1

6.2 Preparations for Disassembly ..................................................................................................................................................................... 6-1

6.3 Main Unit Disassembly ................................................................................................................................................................................. 6-2

6.3.1 Basic Disassembly............................................................................................................................................................................. 6-2

6.3.2 Disconnecting the Base ................................................................................................................................................................. 6-3

2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.3.3 Separating the Front and Rear Half of the Monitor .............................................................................................................. 6-4

6.4 Further Disassembly of the Front Case Assembly ............................................................................................................................... 6-7

6.4.1 Removing the Power Switch Board ............................................................................................................................................ 6-7

6.4.2 Removing the Alarm Lamp and Light Sensor Board............................................................................................................ 6-7

6.4.3 Removing the Screen Assembly Cables ................................................................................................................................... 6-8

6.5 Further Disassembly of the Rear Case Assembly ................................................................................................................................ 6-9

6.5.1 Removing the Recorder .................................................................................................................................................................. 6-9

6.5.2 Further Disassembly of the Recorder ........................................................................................................................................ 6-9

6.5.3 Removing the Bluetooth Board ................................................................................................................................................ 6-11

6.5.4 Removing the Wi-Fi Module ...................................................................................................................................................... 6-12

6.5.5 Removing the Internal Module Rack Assembly .................................................................................................................. 6-13

6.5.6 Removing the Main Support Assembly (N12& N15) ......................................................................................................... 6-16

6.5.7 Removing the iView Board Assembly (N17) ......................................................................................................................... 6-20

6.5.8 Removing the Independent Display Board Assembly (N17 Series)............................................................................. 6-22

6.5.9 Removing the Handle .................................................................................................................................................................. 6-23

6.6 Further Disassembly of the Base Assembly ........................................................................................................................................ 6-24

6.7 Disassembling the Module Rack ............................................................................................................................................................ 6-25

6.8 Disassembling the MPM Module ........................................................................................................................................................... 6-28

7 Parts ................................................................................................................................................................................... 7-1

7.1 N12 Parts ............................................................................................................................................................................................................ 7-1

7.1.1 N12 Whole Unit .................................................................................................................................................................................. 7-1

7.1.2 N12-NLT Front Housing Assembly .............................................................................................................................................. 7-2

7.1.3 N12-Sharp Front Housing Assembly .......................................................................................................................................... 7-3

7.1.4 N12 Rear Housing ............................................................................................................................................................................. 7-4

7.1.5 N12 Rear Housing Assembly (FRU)(115-044499-00) ............................................................................................................ 7-6

7.1.6 N12 Battery Cavity Assembly (FRU)(115-044504-00) ........................................................................................................... 7-7

7.1.7 N12 Module Rack Body Assembly (FRU) (115-044507-00) ................................................................................................ 7-8

7.2 N 15 Parts ........................................................................................................................................................................................................... 7-9

7.2.1 N15 Whole Unit .................................................................................................................................................................................. 7-9

7.2.2 N15-NLT Front Housing Assembly ........................................................................................................................................... 7-10

7.2.3 N15-Sharp Front Housing ........................................................................................................................................................... 7-11

7.2.4 N15 Rear Housing .......................................................................................................................................................................... 7-12

7.2.5 N15 Rear Housing Assembly (FRU) (115-044541-00) ..................................................................................................... 7-14

7.2.6 N15 Base Assembly (FRU)(115-044543-00) .......................................................................................................................... 7-15

7.2.7 N15N17 Module Rack Body Assembly (FRU) (115-044546-00) ..................................................................................... 7-16

7.3 N17 Parts ......................................................................................................................................................................................................... 7-17

7.3.1 N17 Whole Unit ............................................................................................................................................................................... 7-17

7.3.2 N17-NLT Front Housing Assembly ........................................................................................................................................... 7-18

7.3.3 N17-Sharp Front Housing ........................................................................................................................................................... 7-19

7.3.4 N17 Rear Housing .......................................................................................................................................................................... 7-20

7.3.5 N17 Rear Housing Assembly (FRU)( 115-044548-00) ........................................................................................................ 7-22

7.3.6 N17 Base Assembly (FRU) (115-044550-00) ......................................................................................................................... 7-23

7.3.7 Independent Display Upgrade Package (115-044554-00) .............................................................................................. 7-24

7.3.8 Independent Display Assembly ................................................................................................................................................ 7-25

7.3.9 iView Module Assembly (115-050002-00) ............................................................................................................................ 7-26

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3

7.4 External Satellite Module Rack (SMR) ................................................................................................................................................... 7-27

7.4.1 Exploded View ................................................................................................................................................................................. 7-27

7.4.2 Parts List ............................................................................................................................................................................................. 7-27

7.5 M51C Module ................................................................................................................................................................................................. 7-28

7.5.1 Exploded View ................................................................................................................................................................................. 7-28

7.5.2 Parts List ............................................................................................................................................................................................. 7-28

A Electrical Safety Inspection .............................................................................................................................................. A-1

A.1 Power Cord Plug ............................................................................................................................................................................................. A-1

A.2 Device Enclosure and Accessories ........................................................................................................................................................... A-1

A.3 Device Labelling ............................................................................................................................................................................................. A-2

A.4 Scheduled Electrical Safety Inspection .................................................................................................................................................. A-2

A.5 Electrical Safety Inspection after Repair ................................................................................................................................................ A-2

A.6 Electrical Safety Inspection Tes t ................................................................................................................................................................ A-3

4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

DANGER

1 Safety

1.1 Safety Information

 Indicates an imminent hazard that, if not avoided, will result in death or serious injury.

WARNING

 Indicates a potential hazard or unsafe practice that, if not avoided, could result in death or

serious injury.

CAUTION

 Indicates a potential hazard or unsafe practice that, if not avoided, could result in minor

personal injury or product/property damage.

NOTE

 Provides application tips or other useful information.

1.1.1 DANGER

There are no dangers that refer to the product in general. Specific “Danger” statements may be given in the

respective sections of this manual.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 1-1

1.1.2 Warnings

WARNING

 All installation operations, expansions, changes, modifications and repairs of this product

should be conducted by Mindray authorized personnel.

 There is high voltage inside the equipment. Never disassemble the equipment before it is

disconnected from the AC power source.

 When you disassemble/reassemble a parameter module, a patient leakage current test must

be performed before it is used again for monitoring.

 The equipment must be connected to a properly installed power outlet with protective earth

contacts only. If the installation does not provide for a protective earth conductor, disconnect

it from the power line and operate it on battery power, if possible.

 Dispose of the package material, observing the applicable waste control regulations and

keeping it out of children’s reach.

1.1.3 Cautions

CAUTION

 Make sure that no electromagnetic radiation interferes with the performance of the

equipment when preparing to carry out performance tests. Mobile phone, X-ray equipment

or MRI devices are a possible source of interference as they may emit higher levels of

electromagnetic radiation.

 Before connecting the equipment to the power line, verify the voltage and frequency ratings

of the power line are the same as those indicated on the equipment’s label or in this manual.

 Protect the equipment from damage caused by drop, impact, strong vibration or other

mechanical force during servicing.

1.1.4 Notes

NOTE

 Refer to Operation Manual for detailed operation and other information.

1.2 Equipment Symbols

See the N series Operator’s Manual (P/N: 046-011259-00) for information about the symbols used on this

product and its packaging.

1-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

2 Operation Theory

2.1 Overview

As a bedside workstation for multi-parameter monitoring, the N series can provide the complete patient

management, abundant physiological parameter monitoring and physiological alarm functions, as well

the powerful data review function and the flexible wired and wireless network configuration and

application capabilities. The third-party application can be accessed easily through the iView application,

meeting the increasingly common information requirements of hospitals. The provided series of CAA

applications can help doctors to make auxiliary diagnosis for patients. Meanwhile, the N series provide the

hospital management personnel with more excellent monitor management applications, rendering

assistance in fixing the efficiency and quality problems during monitor equipment management of

hospitals.

The N series provide the product models with display screens of different sizes according to the demand

of clinical application. In addition to touch screen operations, the user can use the mouse and keyboard to

operate the monitor. The N series can connect to multiple display screens to function as mirror screens or

extension screens.

The series of products are compatible with the BeneView T series plug-in modules and related accessory

products. They can work together with the TDS to implement the intra-hospital transfer application of

patients.

In comparison with the BeneView T series products, the N series boast better human-computer

interaction design and clinical applicability, more complete IT solution capability of hospitals, and more

abundant CDS applications.

2.2 Product System Architecture

All the N17/N15/N12 monitors have only one main unit:



The N12 main unit uses the 12.1” TFT WXGA display screen.



The N15 main unit uses the 15.6” TFT FHD display screen.

 The N17 main unit uses the 18.5”TFT FHD display screen.
 All of them use the touch screen as an input device and can extend the mouse, keyboard and

remote control.



An internal module rack is integrated, with 4 slots (N12) or 6 slots (N15/N17).

 The MPAN and WiFi modules are optional.
 The built-in recorder is optional.


The N15/N17 can connect to the external module rack and TDS; the N12 can connect to the

TDS.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 2-1

Main control board

LCD

iView assembly

（N17 Optional）

DVI

RJ45

2*USB

2*USB

Power switch

board

Alarm lamp

board

MPAN module

(Optional)

TP control

board

AC/DC

module

Battery interface

board

(N15/N17)

Recorder

(Optional)

Speaker

Battery

Front

shell

Back
shell

AC/DC

interface

2*USB 2*USB DVI RJ45

WiFi module

(Optional)

Independent display board

（N17 Optional）

DVI

Internal module com board（4slots/6slots）

4/6*Module

communication

interface

Nurse call

interface

SMR

interface

Bottom

shell

Battery interface

board

(N12/N12C)

Battery

Main Processor

DDR3

Program

Memory

Data Memory

E2ROM

USB hub

Touch-

controller

SPI

USB

Audio

codec/AMP

Speaker

Touch panel

Power M0

PHY

WiFi

（optional）

Internal Module

Rack communication

board

RTC

Photo

senseor

Power key board

RJ-45

DVI

interface

USB 4*port

MMC

MMC

RMII1

PHY

Independent

display

board/iView

MPAN Module

E2ROM(funnct

ion cfg)

Nursecall
interface

Alarm light

controller

SMR

Interface

FPGA

（N15/N17）

LCD

Back light

driver

DVI

transfer

SPI

UART

LCDC

I2C

I2C

Main
Control
board

Figure 2-1 System block diagram of the N17/N15/N12/N12C

2.2.1 Main Control Board

There are the main control CPU, program memory, data memory, system configuration memory, system

FPGA, WiFi module (optional), power management MCU, battery charging circuit, and DC-DC circuit on

the main control board. The internal interface and external interfaces are also provided on the board. The

internal interface is an interface between the recorder, internal module rack COM board, AC-DC, and the

battery. The external interfaces refer to the DVI display interface, USB interface, and Ethernet interface.

2-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Figure 2-2 Diagram of the main control board

AC

/

DC

module

100

～

240

V AC

AC-DC in

Battery

BAT

charger

switch

M0

DC/DC

+12

V

DC/

DC

LDO

+3.3V_1

VBUS：

9.6～11.1V,
+15

V

ON/OFF

ON/

OFF

+5V

Power switch

board

+5V/+3.3V

+3.3V

Alarm lamp

board

Photo

senseor

Led driver

Recorder

+

12V

LCD&TP

+12V

Internal module rock COM

board

iView module

+12V

Independent display

board

+

5V

+

5V

ON/OFF

+3

.3V

DC/

DC

DC

/

DC

+

3.

3V

_

2

MPAN module

2.2.2 Internal Module Rack COM Board

Two models of internal module rack COM boards are available. The N12 uses the 4-slot COM board, and

the N15/N17 uses the 6-slot COM board. The internal module rack COM board is used to provide the

interface for communication with the parameter module, the SMR interface and nurse call interface, and

the MPAN module interface. Besides, the data forwarding FPGA and corresponding power circuit are also

provided on the internal module rack COM board.

2.2.3 Power Architecture

Figure 2-3 Diagram of power architecture

The AC/DC power module outputs 15V to the main control board, and 3.3V, 5V and 12V can be generated

through the internal DC-DC conversion circuit in the main control board to provide a power supply to

other modules or boards in the main unit. The battery charging circuit is powered by 15V, and the AC

power supply and battery power supply can be switched according to AC on-line detection.

The +12V power supply is provided to the power supply, including the external module rack, and the

DC-DC isolation design is implemented at the module end.

The iVIew assembly uses the power rail Vbus, which is the switching output between the AC-DC output

and battery and aims to avoid abnormal power failure of the iView module and running exception of the

Windows OS running on other modules due to an unexpected power failure of the AC power supply. The

battery supports the main unit to stop the iView module in the normal power-off mode. In the case of

battery power supply, the iView module cannot start.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 2-3

Data

collection

Data

forwarding

System

application

Display and

user interface

Data

output

Data storage

2.2.4 Independent Display Board (for the N17 Only)

It is used to connect the main unit to a display and extend the main screen display. It adopts the DVI

interface. Moreover, the external display with a touch screen can be supported through the USB interface

of the main unit. At present, the supported display with a touch screen is Elo 1919LM.

2.2.5 iView Module (for the N17 Only)

As an embedded computer module, it provides the following external interfaces: the network interface,

DVI interface, and the USB interface. It can connect to the keyboard, mouse, network cable, and display

independently. The configuration of the iView module is mutually exclusive with that of the independent

display module.

2.2.6 Alarm LAMP Board

The LED alarm lamp and light sensor are provided on the board. The light sensor implements the ambient

light detection and is used to adjust brightness of the LCD background light.

2.2.7 Power Switch Board

There are the power switch and three indicators on the power switch board, which are the AC on-line

indicator, battery indicator, and the power-on indicator.

2.3 Data Logic Flow

Figure 2-4 Data flow diagram

The monitoring parameters are collected and analyzed through the module, and then forwarded to the

system software through the internal or external module rack. The system software displays the waveform,

numerical value and alarm information, and the data, alarm information and numerical value are also

stored in the internal data memory at the same time. Meanwhile, they can also be sent to the central

station or other monitors through the wired or wireless network.

2-4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3 Testing and Maintenance

3.1 Introduction

To ensure the patient monitor always functions properly, qualified service personnel should perform

regular inspection, maintenance and test. This chapter provides a checklist of the testing procedures for

the patient monitor with recommended test equipment and frequency. The service personnel should

perform the testing and maintenance procedures as required and use appropriate test equipment.

The testing procedures provided in this chapter are intended to verify that the patient monitor meets the

performance specifications. If the patient monitor or a module fails to perform as specified in any test,

repairs or replacement must be done to correct the problem. If the problem persists, contact our

Customer Service Department.

CAUTION

 All tests should be performed by qualified service personnel only.

 Care should be taken when changing the settings in Maintenance and Configuration menus to

avoid loss of data.

 Service personnel should possess a working knowledge of the test tools and make sure that

test equipment and cables are applicable.

3.1.1 Test Equipment

Required Test Equipment is listed in the specific test procedure.

3.1.2 Preventative Maintenance

The following sections provide a list of recommended preventative maintenance procedures. It is

recommended to verify accuracy and calibrate the patient monitor as needed at least once every two

years (and once a year for CO

and contents.

and AG modules). See the following sections for detailed test procedures

2

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-1

3.1.3 Recommended Frequency

Check/Maintenance Item Frequency

Preventative Maintenance Tests

Visual inspection When first installed or reinstalled.

NIBP tests

Sidestream and

Microstream CO

2

tests

AG tests

Performance Tests

ECG tests

Resp test

SpO2 test

NIBP test

Temp test

IBP tests

C.O. test

Sidestream and

Microstream CO

2

tests

AG tests

Pressure check

Leakage test

Leakage test

Performance test

Calibration

Performance test

Calibration

Performance test

Calibration

Pressure check

Leakage test

Performance test

Pressure calibration

Leakage test

Performance test

Calibration

Leakage test

Performance test

1. If the user suspects that the measurement is incorrect.

2. Following any repair or replacement of relevant module.

3. For NIBP module, at least once every two years; for CO

and

2

AG modules, once a year.

4. AG leakage test should be performed before AG

measurement.

1. If the user suspects that the measurement is incorrect.

2. Following any repair or replacement of relevant module.

3. At least once every two years. For CO

AG and NMT

2,

modules, at least once a year.

4. AG leakage test should be performed before AG

measurement.

Calibration

EEG test

BIS test

Interconnecting

CCO/SvO2 tests

function

Output calibration

Performance test

NMT tests

Sensor check

3-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Nurse call relay performance test

Analog output performance test

If the user suspects that the nurse call or analog output does

not function properly.

Electrical Safety Tests

Earth impedance

Electrical safety

tests

Earth leakage test

Patient leakage current

1. Following any repair or replacement of the power module.

2. When the patient monitor is dropped.

3. At least every two years or as required.

Patient auxiliary current

Other Tests

1. When first installed or reinstalled.

Power on test

2. Following any maintenance or the replacement of any

main unit parts.

Recorder check Following any repair or replacement of the recorder.

Network print test

1. When first installed.

2. Whenever the printer is serviced or replaced.

1. When first installed.

Device integration check

2. Following any repair or replacement of the external device.

1. When first installed.

Function test

2. Whenever a battery is replaced.

Battery check

Performance test

Once every two months or when the battery run time is

reduced significantly.

1. When first installed.

Mounting check

2. At least every two years or as required.

Note: Performance test is not required for the rSO

perform self tests, and the ScvO

needs to be calibrated prior to use.

2

, and ScvO2 modules, because the rSO2, modules

2

3.1.3.1 Preventative Maintenance Procedures

3.1.4 Visual Inspection

Inspect the equipment for obvious signs of damage. The test is passed if the equipment has no obvious

signs of damage. Follow these guidelines when inspecting the equipment:

 Carefully inspect the case, display screen, buttons, knobs, and handle for obvious signs of damage.
 Inspect the SMR and parameter modules for obvious signs of damage.
 Inspect the power cord, bracket and module accessories for obvious signs of damage.
 Inspect all external connections for loose connectors, bent pins or frayed cables.
 Inspect all connectors on the equipment for loose connectors or bent pins.
 Make sure that safety labels and data plates on the equipment are clearly legible.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-3

3.1.5 NIBP Tests

3.1.5.1 Leakage Test

Tools required:

 NIBP cuff for adult patient
 NIBP hose
 Cylinder

Follow this procedure to perform the test:

1. Set Patient Category to Adult.

2. Connect the NIBP cuff to the NIBP connector on the patient monitor.

3. Wrap the cuff around the rigid cylinder as shown below.

Monit

Hose

NIBP connector

4. Select Main Menu → Maintenance → enter the required password → Module → NIBP → NIBP

Leakage Test. The message NIBP Leakage Test is displayed in the NIBP parameter area.

5. The cuff automatically deflates after 20s, which means NIBP leakage test is completed.

6. If no message is displayed in the NIBP parameter area, it indicates that the system has no leak. If the

message NIBP Airway Leak is displayed, it indicates that the system may have a leak. In this case,

verify the connections and make sure that the NIBP cuff, hose, and connectors are not leaking. Then,

perform the test again.

You can also perform a manual leakage test:

1. Perform steps 1-4 in the1.1.5.2 NIBP Accuracy Test section.

2. Raise the pressure in the rigid vessel to 250 mmHg with the squeeze bulb. Then, wait for 5 seconds

until the measured values become stable.

Cylinder

Cuff

3. Record the current pressure value and meanwhile count time with a timer. Then, record the pressure

value after counting to 60 seconds.

4. Compare the two values and make sure the difference is not greater than 6 mmHg.

3-4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3.1.5.2 NIBP Accuracy Test

Squeeze bulb

Tools required:

 T-shape connector
 Tubing
 Squeeze bulb
 Rigid vessel with 500 ± 25 ml internal volume
 Reference manometer (calibrated with accuracy equal to or greater than 1 mmHg)

Follow this procedure to perform the test:

1. Connect the equipment as shown below.

Monitor

Tubing

NIBP connector

2. Before inflation, the reading on the manometer should be zero. If not, open the valve of the squeeze

bulb to let the whole airway open to the atmosphere. Close the valve after the reading turns to zero.

3. Select Main Menu → Maintenance → enter the required password → Module → NIBP → NIBP

Accuracy Test.

4. Check the reading of the manometer and the reading of the patient monitor. Both should be 0

mmHg.

5. Raise the pressure in the rigid vessel to 50 mmHg with the squeeze bulb. Then, wait for 10 seconds

until the measured values become stable.

6. Compare the reading of the manometer with the reading of the patient monitor. The difference

should be 3 mmHg or less. If it is greater than 3 mmHg, contact your service personnel.

Manometer

Rigid vessel

7. Raise the pressure in the rigid vessel to 200 mmHg with the squeeze bulb. Then, wait for 10 seconds

until the measured values become stable. Repeat step 6.

NOTE

 You can use an NIBP simulator to replace the squeeze bulb and the reference manometer to

perform the test.

 You can use an appropriate cylinder and a cuff instead of the rigid vessel.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-5

3.1.6 Sidestream and Microstream CO

Leakage Test

1. Plug the module into the module rack.

Tests

2

2. Wait until CO

trap (by using your finger or a pinched sample line). The sidestream and microstream CO

will behave as follows:

 Sidestream: Plug the sidestream CO

 Microstream: After 3 seconds, the alarm message "CO

Accuracy Test

Tools required:

2 warmup is finished and then completely block the gas inlet of the module or water

2 modules

module into the module rack of the main unit. Wait one

2

minute until the module warmup is finished and then completely block the gas inlet of the

module (you may use a pneumatic plug or your finger to manually occlude the port). An alarm

message CO2 Airway Occluded will appear on the screen. Block the gas inlet for another 60

seconds. Select Main Menu → Maintenance → enter the required password → Module →

CO2 → Calibration. If the flow rate is less than 10 ml/min and the alarm message continues, it

indicates that the module does not leak. If the alarm message CO2 Airway Occluded disappears,

or the flow rate is greater than or equal to 10 ml/min, it indicates that the module leaks.

Purging" is displayed on the screen.

2

Block the gas inlet for another 30 seconds. If the alarm message "CO

Airway Occluded" is

2

displayed, it indicates that the module does not leak.

 For microstream CO

module and sidestream CO2 module without O2 module, a gas cylinder with

2

5±0.03% CO2, 21.0% O2 and balance gas N2 (P/N 0075-00-0033-01) o r a st e e l g a s cylin d e r wit h : 

 CO2 concentration 3% - 7% 
 a/c ≤ 0 .01 (wh e r e a = a b so lu t e ga s co nc e nt rat io n ac c u racy, c = g a s co n c e nt rat io n ) 
 balance gas N2

 For sidestream CO

module with O2 module equipped, a steel gas cylinder (P/N 0075-00-0048-01)

2

with 6% CO2, 4% Desflurane, 45% N2O, and 45% O2,

 T-shape connector
 Tubing
 Flowmeter

1. Plug the module into the module rack.

2. Wait until the CO2 module warmup is finished. Check the airway for leak and perform a leakage test

as well to make sure that the airway has no leak.

3. Select Main Menu → Maintenance → enter the required password → Module → CO2.

4. Connect the test system as follows:

3-6 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Flowmeter

Tubing

Relief valve

T-shape connector

Monitor

Gas cylinder

5. Open the relief valve, and adjust it until the flowmeter has a stable reading between

10 ml/min and 50 ml/min.

6. Verify that the real-time CO

CO

, the value is 45±2 mmHg).

2

value is within 6±0.2% in the CO2 Maintenance menu (for microstream

2

7. Replace the cylinder to the steel gas cylinder with >40% O2 and balance gas N2(applicable to

sidestream CO

within ±2% (when O

module with O2 module equipped) and verify that the real-time O2 value error is

2

≤80%) or ±3% (80%≤O2≤100%).

2

Calibration

Tools required:

 For microstream CO

module and sidestream CO2 module without O2 module, a gas cylinder with

2

5±0.03% CO2, 21.0% O2 and balance gas N2 (P/N 0075-00-0033-01) o r a st e e l g a s cylin d e r wit h : 

 CO2 concentration 3% - 7% 
 a/c ≤ 0 .01 (wh e r e a = a b so lu t e ga s co nc e nt rat io n ac c u racy, c = g a s co n c e nt rat io n ) 
 balance gas N2

 For sidestream CO

module with O2 module equipped, a steel gas cylinder (P/N 0075-00-0048-01)

2

with 6% CO2, 4% Desflurane, 45% N2O, and 45% O2,

 T-shape connector
 Tubing
 Flowmeter

1. Make sure that the sidestream or microstream CO

module has been warmed up or started up.

2

2. Check the airway for leaks and perform a leakage test as well to make sure that the airway has no

leakage.

3. Select Main Menu → Maintenance → enter the required password → Module → CO2.

4. In the CO2 Maintenance menu, select Zero.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-7

5. After the zero calibration is finished successfully, connect the equipment as follows:

Flowmeter

Tubing

Relief valve

Monitor

T-shape connector

Gas cylinder

6. Open the relief valve, and adjust it until the flowmeter has a stable reading between

10 ml/min and 50 ml/min.

7. In the Calibrate CO2 menu, select 6% (the CO

concentration) for CO2 calibration. The measured CO2

2

concentration is displayed.

8. After the measured CO

concentration becomes stable, select Calibrate CO2 to calibrate the CO

2

module.

9. Replace the cylinder to the steel gas cylinder with >40% O2 and balance gas N2(applicable to

sidestream CO2 module with O2 module equipped) and calibrate O2.

If the calibration is finished successfully, the message Calibration Completed! is displayed in the Calibrate

CO2 menu. If the calibration failed, the message Calibration Failed! is displayed. In this case, check

whether the operations are correct and perform another calibration. If the calibration fails several times,

return the module to Mindray for repair.

3.1.7 AG Tests

Leakage Test

1. Plug the AG module into the module rack.

2. Wait until the AG module warmup is finished and then completely block the gas inlet of the AG

module (you may use a pneumatic plug or your finger to manually occlude the port). An alarm

message AG Airway Occluded will appear on the screen.

2

3. Block the gas inlet for another 60 seconds. Select Main Menu → Maintenance → enter the

required password → Module → AG → Calibration. Check that the flow rate is less than 10

ml/min. If the alarm message continues, it indicates that the module does not leak.

If the alarm message disappears, or the flow rate is greater than or equal to 10 ml/min, it indicates that the

module leaks.

3-8 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Accuracy Test

Tools required:

 Gas cylinder with a certain standard gas (such as 6±0.05% CO2, Bal N

) or standard gas mixture. Gas

2

concentration should meet the following requirements: AA > 1.5%, CO2 > 1.5%, N2O > 40%, O2 > 40%,

of which AA represents an anesthetic agent. Precision requirement: a/c ≤ 0.01 (a is the gas absolute

concentration accuracy; c is the gas concentration)

 T-shape connector
 Tubing
 Flowmeter

1. Plug the AG module into the module rack.

2. Wait at least 10 min and then perform a leakage test to make sure that the airway has no leakage.

3. Connect the test system as follows:

Flowmeter

Tubing

Relief valve

T-shape connector

Monitor

Gas cylinder

4. Open the relief valve, and adjust it until the flowmeter has a stable reading between 10 ml/min and

50 ml/min.

5. Verify that the concentration of each composition meets the specification stated in the Operator's

Manual.

Calibration

Tools required:

 A supply of medical grade 100% O2 and an anesthetic calibration gas (4% Desflurane, 6% CO2, 45%

N2O, Bal O2, P/N: 0075-00-0048-01 and flow regulator P/N: 0119-00-0235). Gas concentration should

meet the following requirements:

 AA ≥ 1.5%, CO2 ≥ 1.5%, N2O ≥ 40%, O2 ≥ 40%, of which AA represents an anesthetic

agent.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-9

 a/c ≤ 0.01 (a is the gas absolute concentration accuracy; c is the gas concentration)

 T-shape connector
 Tubing

Follow this procedure to perform a calibration:

1. Select Main Menu → Maintenance → enter the required password → Module → AG.

2. Check the airway and make sure that there are no occlusions or leaks.

 Vent the sampling tubing to the air and check if the Current Flow Rate and Set Flow Rate are

approximately the same. If the deviation is great, it indicates that there is an occlusion in the

tubing. Check the tubing for an occlusion.

 Perform a leakage test to make sure that the airway has no leakage.

3. Connect the test system as follows:

4. Open the relief valve and vent a certain standard gas or gas mixture. Adjust the relief valve until the

flowmeter has a stable reading between 10 ml/min and 50 ml/min.

Flowmeter

Tubing

Relief valve

T shape connector

Monitor

Gas cylinder

5. In the Calibrate AG menu, the concentration and flowrate of each measured gas are displayed.

 If the difference between the measured gas concentration and the actual one is within tolerance,

a calibration is not needed.

 If the difference is not within tolerance, a calibration should be performed. Select Calibrate.

6. Enter the vented gas concentration. If you use only one gas for calibration, set other gases'

concentration to 0. If the calibration is performed for all gases, the gas with an entered

calibration value of 0 is not calibrated.

7. Select Calibrate to start a calibration.

8. If the calibration is finished successfully, the message Calibration Completed! is displayed. If the

calibration failed, the message Calibration Failed! is displayed. In this case, perform another

calibration. If the calibration fails several times, return the module to Mindray for repair.

3-10 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

CAUTION

 Calibrate the O

module, if it has been transported for long distance.

2

3.2 Power On Test

This test is to verify that the patient monitor can power up correctly. The test is passed if the patient

monitor starts up by following this procedure:

1. Connect the patient monitor to the AC mains. The AC mains LED and battery LED light up.

2. Press the power on/off switch to switch on the patient monitor. The system sounds a beep indicating

the self test on alarm sounds is passed. The alarm lamps light red, yellow and cyan respectively, and

then go off, indicating the self test on alarm sound is passed.

3. The patient monitor enters the main screen and start-up is finished.

3.3 Module Performance Tests

3.3.1 ECG Tests

ECG Performance Test

Tools required:

 Medsim300B patient simulator or other equivalent simulator

1. Connect the patient simulator with the ECG module using an ECG cable.

2. Set the patient simulator as follows: ECG sinus rhythm, HR = 60 bpm with the amplitude as 1 mV.

3. Verify that the ECG waves are displayed correctly without noise and the displayed HR value is within

60±1 bpm.

4. Disconnect each of the leads in turn and observe the corresponding lead off message displayed on

the screen.

5. Set the output of the simulator to deliver a paced signal and set Paced to Yes on the monitor. Check

the pace pulse marks on the monitor screen.

ECG Verification

Tools required: vernier caliper

1. Select the ECG parameter window or waveform area →Filter→Diagnostic.

2. Select

3. Select Calibration. A square wave appears on the screen and the message "ECG Calibrating" is

Main Menu →Maintenance → enter the required password → Module..

displayed.

4. Compare the amplitude of the square wave with that of the scale. The difference should be with 5%.

5. After completing the calibration, select Stop Calibration.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-11

If necessary, you can print out the square wave and wave scale through the recorder and then measure

the difference.

3.3.2 Resp Performance Test

Tools required:

 Medsim300B patient simulator or other equivalent simulator

1. Connect the patient simulator to the module using a non ESU-proof cable and set lead II as the

respiration lead.

2. Configure the simulator as follows: lead II as the respiration lead, base impedance line as 500 Ω; delta

impedance as 1 Ω, respiration rate as 20 rpm.

3. Verify that the Resp wave is displayed without any distortion and the displayed Resp value is within

20±1 rpm.

3.3.3 SpO

Tools required:

Test

2

 None.

1. Connect SpO2 sensor to the SpO2 connector of the monitor. Set Patient Category to Adult and PR

Source to SpO2 on the monitor.

2. Apply the SpO

sensor to the ring finger of a healthy person.

2

3. Check the Pleth wave and PR reading on the screen and make sure that the displayed SpO2 is within

95% and100%.

4. Remove the SpO

sensor from your finger and make sure that an alarm of SpO2 Sensor Off is

2

triggered.

Measurement accuracy verification:

The SpO

accuracy of the MPM module has been verified in human experiments by comparing with

2

arterial blood sample reference measured with a CO-oximeter. Pulse oximeter measurements are

statistically distributed and about two-thirds of the measurements are expected to come within the

specified accuracy range compared to CO-oximeter measurements.

NOTE

 A simulator cannot be used to assess the accuracy of a pulse oximeter monitor or a SpO

2

sensor. Instead, it can only verify that whether the monitor is functional. The accuracy of a

pulse oximeter monitor or a SpO2 sensor needs to be verified by clinical data.

3-12 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3.3.4 NIBP Tests

See section 3.1.5NIBP Tests.

3.3.5 Temp Test

Tools required:

 Resistance box (with accuracy above 0.1 Ω)

1. Connect the two pins of any Temp connector of a module to the two ends of the resistance box using

two wires.

2. Set the resistance box to 1354.9 Ω (corresponding temperature is 37ºC).

3. Verify each Temp channel of the monitor and make sure that the displayed value is within 37±0.1ºC.

4. Repeat steps 1 to 3 to verify each Temp channel of the monitor.

3.3.6 IBP Tests

Performance Test

Tools required:

 Patient simulator Medsim300B, MPS450, or other equivalent equipment
 Dedicated IBP adapter cable (P/N 00-002199-00 for 300B, P/N 00-002198-00 for MPS450)

1. Connect the patient simulator to the monitor's IBP connector.

2. Set the patient simulator output to the IBP channel to 0 mmHg.

3. Press the Zero key on the module to make a zero calibration.

4. Set static pressure to 200 mmHg on the patient simulator.

5. The displayed value should be within 200±2 mmHg.

6. If the error is beyond ±2 mmHg, calibrate the IBP module. If the IBP module was calibrated with a

dedicated reusable IBP sensor, check the calibration together with this IBP sensor.

7. Make the patient simulator outputs 120/80 mmHg ART signals and 120/0 mmHg LV signals

respectively to each IBP channel and check that the IBP wave is displayed correctly.

8. Repeat the preceding steps to test all IBP channels.

Pressure Calibration

Method 1:

Tools required:

 Medsim300B patient simulator, MPS450, or other equivalent equipment
 Dedicated IBP adapter cable (300B, P/N 00-002199-00) (use P/N 00-002198-00, if the simulator is

MPS450)

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-13

1. Connect the patient simulator to the monitor's IBP connector.

2. Set the patient simulator to 0 pressure for the desired IBP channel.

3. Press the Zero key from the IBP menu.

4. Set static pressure to 200 mmHg on the patient simulator.

5. Select Main Menu → Maintenance → enter the required password → Module → IBP.

6. Set the calibration value to 200 mmHg.

7. Select the Calibrate button next to the desired IBP channel to start a calibration.

8. If the calibration is completed successfully, the message Calibration Completed! will be displayed.

Otherwise, a corresponding message will be displayed.

Method 2:

Tools required:

 Standard sphygmomanometer
 Squeeze bulb
 Tubing
 T-shape connector

1. Connect the 3-way stopcock, the sphygmomanometer and the squeeze bulb through a T-shape

connector, as shown below.

2. Zero the transducer, and then open the stopcock to the sphygmomanometer.

Pressure transducer

3-way stopcock

Pressure adapter cable

T-shape connector

Sphygmomanometer

3. Select Main Menu→ Maintenance → enter the required password → Module → IBP. In the

displayed interface, set the target calibration value of the target channel. Value range: 80 to 300

mmHg.

IBP

module

4. Inflate using the squeeze bulb until the reading of sphygmomanometer approximates the preset

calibration value.

5. Adjust the calibration value in the IBP Maintenance menu until it is equal to the reading of

sphygmomanometer

3-14 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6. Select the Calibrate button next to the desired IBP channel to start a calibration.

If the calibration is completed successfully, the message Calibration Completed! will be displayed.

Otherwise, a corresponding message will be displayed.

3.3.7 C.O. Test

Tools required:

 Medsim300B patient simulator or other equivalent simulator
 C.O. adapter box (for 300B)

1. Connect the patient simulator to the C.O. module using a C.O. main cable.

2. Set the blood temperature (BT) to 37ºC on the patient simulator and check the temperature value is

37±0.1ºC.

3. Switch off Auto TI and adjust TI (IT) to 24ºC. Select C.O. Measure to enter the C.O. measurement

window and set Comp. Const. to 0.595.

4. Set the injectate temperature to 24ºC and the C.O. to 5 L/min on the C.O. simulator. Select Start in

the C.O. measurement window to start C.O. measurements, and press the run key on the simulator

after 3-10 seconds.

6. Verify that the C.O. value is 5±0.25 L/min.

3.3.8 Sidestream and Microstream CO

See section 3.1.6Sidestream and Microstream CO2 Tests.

3.3.9 AG Tests

See section 3.1.7AG Tests.

Tests

2

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-15

3.3.10 EEG Test

You can choose either of the following methods to perform the test:

Method 1:

Tools required:

 ECG simulator with Sine wave output function.

1. Connect pins of EEG lead wires to an ECG simulator.

Set the ECG simulator to output Sine wave and frequency to between 0.5 and 30Hz. The range is 2mV. The

GND pin of EEG module connects to RL of ECG simulator. The A+ pin of EEG module connects to LA of ECG

simulator. The other pins of EEG lead wires connect to any ECG lead as you wish.

2. Open the EEG setting menu on monitor, Set the Scale of EEG to be 2000uV. Then you can find a Sine

wave on screen of Patient Monitor.

Method 2:

Tools required:

 None.

Connect all the pins of EEG lead wire together, for example, you can connect them to some metal

materials. Then check the EEG module resistance test, if all the leads are green then pass.

Method 3:

Tools required:

 Resistance box
 Multimeter

Connect the EEG module/cable to the EEG simulator and the monitor.

1. Set Montage Type: Bipolar Mode.

2. Adjust the resistance box to 1 kΩ, verify the resistance value displayed on the monitor is 1kΩ.

3. Test the lead type of the monitor to B+, C+ and D+ respectively instead of lead A+.

4. Set Montage Type: Monopolar Mode , then repeat the step 3~4.

3-16 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3.3.11 BIS Test

You can choose either of the following methods to perform the test:

Method 1:

Tools required:

 None.

1. Connect the BIS sensor to a healthy, wide-awake adult as directed in the Operator's Manual.

2. Check the EEG wave and BIS numerics displayed on the screen and make sure the BIS value is within

80 and 100.

Method 2:

Tools required:

 BIS simulator (Covidien PN: 186-0137)

1. Connect the BIS sensor with the BIS simulator. Select BIS area parameter or waveform to access BIS

Setup. Then, select Sensor Check to perform a cyclic impedance check.

2. After the cyclic impedance check is finished, check that the result for each electrode is passed.

Method 3:

Tools:

 Signal generator, （Maker: NF, Model:WF1946B）
 Covidien Signal simulator (Covidien PN:189-0137)

1. Insert the BIS module to the monitor, connect the BIS module/cable to the Covidien Signal

simulator, signal generator.

2. Adjust the signal generator to produce a 90Hz, 35.4mV(RMS) sine signal to the Convidien Signal

simulator.

3. Set the time length of the review window to the shortest.

4. Verify the EMG value range from 65 to 75, and SQI value should be 100 displayed on Graphic

Trends.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-17

3.3.12 CCO/SvO

Tests

2

Interconnecting Function

Tools required:

 None.

1. Connect and set the patient monitor and Vigilance monitor per the procedures in the Operator's

Manual.

2. Set the Vigilance monitor to Demo mode. Start the CCO and SvO2 tests in Demo mode.

3. Verify that the CCO/SvO2 numerics displayed on the patient monitor and Vigilance monitor are

consistent.

Output Performance

Tools required:

Multimeter

1. Connect the signal output end of the connecting cables of the CCO/SvO

module to the oscilloscope.

2

2. Select CCO Setup → Signal Output Setup and then select Simulated High Value from the pop-up

menu. Check that the amplitude of electrical level at the signal output port of ECG, MAP, CVP and

SpO

are 5±0.015 V, 5±0.25 V, 5±0.25 V and 10±0.5 V respectively.

2

3.3.13 NMT Tests

Performance Test

Method 1:

Tools required:

 Resistance box
 Multimeter

1. Set the resistance value to 1kOhm. Connect the stimulation electrodes to the two wiring terminals.

2. Set the multimeter to operate in DC mode. Connect the multimeter sensors to the NMT stimulation

electrodes, making sure that the sensor and electrode connected have the same polarity.

3. Insert the NMT module into the module rack of the monitor. Select the NMT parameter area of the

monitor to access the NMT Setup menu. Set the Stimulation Current to Supra(60mA). Set the Pulse

Width to 300μs. Perform a PTC measurement.

4. Check the voltage change detected by the multimeter and verify normal output of NMT stimulation.

Method 2:

Tools required:

 Resistance box (0~9999.9 Ω)
 Oscilloscope (Agilent DS0-X3014A)

3-18 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

1. Set resistance box to 1kOhm, connect stimulation electrodes to the resistance box.

2. Insert the NMT module to monitor. Set [Stimulation current] to [Supra (35mA)], [Pulse width] to

200μs. Select [ST Mode] in NMT setup menu to start a ST measure.

3. Measure the voltage wave of the resistance box by oscilloscope, verify the pulse width is range

from 180 to 220us, and calculate the Stimulation Current according stimulation voltage should

be range from 33 to 37mA.

Sensor Check

Tools required: None.

1. Connect the patient monitor, NMT module, and NMT accessories.

2. Select Main Menu → Maintenance → enter the required password → Module → NMT.

3. Follow the on-screen instructions to check the NMT sensor.

If sensor check completes successfully, the message Test passed. The function of NMT sensor is OK is

displayed, indicating a functional sensor. If the check fails, check whether the sensor is placed correctly as

instructed, and perform the sensor check again.

NOTE

 Stop NMT measurement or calibration before starting NMT sensor check.

 Avoid forcefully striking the sensor.

3.4 Nurse Call Relay Performance Test

Tools required: Multimeter

1. Connect the nurse call cable to the Nurse Call Connector of the patient monitor.

2. Enter Demo mode. Then, select Main Menu → Maintenance >> → enter the required password

→ Alarm to access the Nurse Call setup menu.

3. In Nurse Call menu, select all options of Alarm Priority and Alarm Type. and set Contact Type to

Normally Open.

4. In Nurse Call menu, set Signal Type to Pulse. Cause the monitor to generate an alarm and verify the

output are pulses of 1s width and the relay contacts are closed (can be measured with a multimeter)

when there is an alarm.

5. In Nurse Call menu, set Signal Type to Continuous. Cause the monitor to generate an alarm and verify

the output is continuous high level and the relay contacts are closed (can be measured with a

multimeter) when there is an alarm.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-19

3.5 Analog Output Performance Test

Tools required:

 Patient simulator
 Oscilloscope

1. Connect the patient simulator to the monitor using an ECG or IBP cable and connect the oscilloscope

to the Auxiliary Output Connector of the MPM module of the patient monitor.

2. Verify that the waves displayed on the oscilloscope are identical with those displayed on the monitor.

3.6 Electrical Safety Tests

WARNING

 Electrical safety tests are a proven means of detecting abnormalities that, if undetected, could

prove dangerous to either the patient or the operator.

 All tests can be performed using commercially available safety analyzer test equipment.

Maintenance personnel shall ensure the adaptability, functional completeness and safety of

these pieces of test equipment, and be familiar with their usage.

 Electrical safety tests shall comply with the following standards: IEC 60601-1 and ANSI/AAMI

ES60601-1.

 In case of other stipulations in local laws and regulations, implement electrical safety tests by

following relevant stipulations.

 All devices driven by AC power and connected to medical instruments in patient zones must

comply with the IEC 60601-1 standard. And electrical safety tests on these devices must be

implemented in accordance with the test interval of the patient monitor.

 Use certified safety analyzer (for example, UL, CSA or AMAI) as instructed to perform relevant

tests.

NOTE

 Electrical safety check shall be performed after repair or routine maintenance. Ensure that all

cover boards, panels and screws are correctly installed before implementing electrical safety

tests.

 Electrical safety tests are used to timely detect potential electrical safety risks that might cause

damage to patients, operators or maintenance personnel. Electrical safety tests must be

carried out under normal environmental conditions (that is, normal temperature, humidity and

barometric pressure).

See Appendix A Electrical Safety Inspection for electrical safety tests.

3-20 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3.7 Recorder Check

Tools required:

 None.

1. Print ECG waveforms. The recorder should print correctly and the printout should be clear.

2. Set the recorder to some problems such as out of paper, etc. the patient monitor should give

corresponding prompt messages. After the problem is removed, the recorder should be able to work

correctly.

3. Switch automatic alarm recording for each parameter ON and then set each parameter's limit outside

set alarm limits. Corresponding alarm recordings should be triggered when parameter alarms occur.

3.8 Network Print Test

NOTE

 HP LaserJet Pro M202dw laser printer is recommended for BeneVision patient monitor series

3.8.1 Device Connection and Setup

1 Connect the patient monitor and network printer to a network switch using common network cables

as follows:

BeneVision

monitor

Network cable

Switch

2 Select Main Menu → Maintenance → enter the required password →Network Setup and set the

IP address of the patient monitor in the same network segment with that of the network printer. (See

the instructions for use accompanying the printer)

3 Select Main Menu → Maintenance → enter the required password → Print and set the IP address

of the printer to the actual IP address, and set the paper size to the actual size.

4 Set the print resolution to 300dpi or 600dpi as required.

5 Click Print Test Page to check whether the output of the printer's test page is normal. If not, recheck

the connection and configuration of the printer.

Network

printer

Network cable

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 3-21

3.9 Battery Check

Tools required:

 None.

Function Test

1. Verify that the patient monitor works properly when running on AC power.

2. Remove the AC power cord and verify that the patient monitor still works properly.

Performance Test

Perform the test procedure in the Battery section in the Operator's Manual and verify the operating time

of the battery meets the product specification.

3.10 Mounting Check

Tools required: None.

3.10.1 Safety check

Check the mounting of Patient Monitor is safe.

3.10.2 Overall Test and Check of Installed System

Implement installation test:

The following tests and checks need to be performed after a patient monitor is installed, or reinstalled

after being disassembled and repaired:

 Check that the screws fastening the bracket and guide rail are not loose.
 Check that the five installation screws on the bottom side of the N12 monitor are not loose.(six

installation screws for N15 and N17)

 Check that the four installation screws on the transfer metal and monitor bottom side are not loose.
 Check that it can be installed in place and locked when N12 monitor use fast lock installed way
 Check that it can be installed in place and locked when the monitor use on the cart installed way
 Check that the modules can be normally and securely inserted into the module rack.
 Check that the trim strip is properly installed after the display is disassembled and repaired.
 Check that the monitor handle is not loose.
 Check that the VHM bracket can place the monitor at any height as required.

3-22 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

4 Troubleshooting

4.1 Introduction

This chapter lists the problems that may occur during use of the monitor and recommended measures.

Refer to the table in this chapter to check the monitor, confirm and fix these problems. For more

information about the troubleshooting, please contact Mindray service.

4.2 Part Replacement

For the monitor, the PCB, main parts and components can be replaced. For the LCD or touch screen fault,

only the front case assembly can be replaced. Once the faulty PCB is confirmed, replace the PCB according

to the operation guide in Chapter 6 Repair and Disassembly. Then, confirm that the monitor can operate

normally and has passed all the performance tests. For the information about replaceable parts, refer to

Chapter 7 Parts.

4.3 Check before Powering on the Monitor

After the AC power supply is connected, check whether the AC indicator is turned on. If not, confirm

whether the AC cable is connected to the socket and monitor reliably. If both the AC external power

supply and power cord are connected normally, but the AC indicator is off, the AC-DC power module or

main control board of the main unit may be damaged. Now, you need to run the monitor on battery

powered on. If the monitor cannot be powered on, the main control board may be damaged or the

internal board is abnormal, resulting in power supply protection. If the monitor can be run on battery

power, the AC-DC power module is damaged.

In addition, check the appearance for damages before powering on. Particularly, when the touch screen of

the screen assembly is damaged, stop using the monitor immediately.

4.4 Software Version Check

Some troubleshooting tasks may involve software version compatibility. For information about the

configuration and software version of your patient monitor, contact Mindray service. To check the

software version, do as follows:

 Select Main Menu quick key, from the System column, select Version. You can check the version

information of the system software.

 Select Main Menu quick key, from the System column, select Maintenance >> → enter required

password → select Version. In the displayed menu, you can check the version information of the

system software and modules.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-1

4.5 Technical Alarm Check

AC mains not

connected or

insufficient battery

power or battery

Cable defective or

Verify the connecting cable connectors and

witch and

Power module

Main control board

Before troubleshooting the patient monitor, check for technical alarm message. If an alarm message is

presented, eliminate the technical alarm first. For detailed information on technical alarm messages,

possible causes and countermeasures, refer to N series Operator’s Manual (P/N: 046-011259-00).

4.6 Troubleshooting Guide

4.6.1 Power On/Off Failures

Failure Symptom Possible Cause Countermeasure

Power on failure

damaged

improperly connected

Power s

indicator board

damaged

defective

failure

 Verify the AC mains is properly connected.
 Verify the battery capacity is sufficient and the

batter is not damaged.

 Verify the cable connecting the power-on/off

button board to the main control board.



corresponding sockets are not damaged.

Replace the power switch and indicator board.

Replace the power module.

Replace the main control board.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-2

4.6.2 Display Failures

monitor.

Failure Description Possible Cause Troubleshooting

The display screen

does not function or

the display is

abnormal, but the

main unit can

operate

The touch screen

does not respond

Cable defective or

improperly connected



Verify the cables (screen cable and backlight

cable) connecting the display screen to the main

control board are correctly connected.

Verify the connecting cable connectors and



corresponding sockets are not damaged.

LCD screen defective Replace the front case assembly.

Main control board

software abnormal

Backlight driver

defective

Upgrade the software of the main control board.

Replace the main control board.

Display driver defective Replace the main control board.

Touchscreen disabled

Cable defective or

improperly connected

Check if there is a symbol shown above the Main

Menu QuickKey. If yes, press Main Menu for more than

3s to enable the touchscreen.

Verify the cable connecting the touch screen to



the main control board is properly connected.

Verify the connecting cable connectors and



corresponding sockets are not damaged.

Touch screen defective Replace the front case assembly.

Main control board

software abnormal

Main control board

failure

Touch controller’s

firmware is running

wrong.

Upgrade the software of the main control board.

Replace the main control board.

Touch the screen stably for 20 seconds. If the touch

screen still does not work, please restart the

If the touch screen could not work yet, replace the

front case assembly.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-3

4.6.3 Module Rack Failures

Failure Description Possible Cause Troubleshooting

SMR



The cable connecting SMR and the main unit

of the monitor is not connected properly or

External cable defective

or poorly connected

Defective parameter

module

already damaged. Verify the connecting

cables and connectors are not damaged.

Verify that contact screws on SMR or module



are tightly fastened and well connected.

Replace the malfunctioning parameter module

with a known good module. If the patient

monitor identifies the replacement module and

can start measurement, it indicates that the

original module is faulty.

SMR cannot identify

parameter modules

Internal module rack

Wrong communication

board software version

Upgrade the module and/or the SMR software to

a compatible level.

 Check whether the SMR interface output

voltage of the main unit is 12 V. If it is

abnormal, the internal module rack COM

SMR power supply

abnormal

board or main control board fails.

 Check whether the contact screw output

voltage of the external module rack is 12 V. If

it is abnormal, the communication module

8-slot Module rack

communication board

defective

Internal module rack

COM board defective

Main control board

failure

on the SMR fails.

Replace 8-slot the module rack communication

board.

Replace the internal module rack COM board.

Replace the main control board.

Defective parameter

module

Replace the malfunctioning parameter module

with a known good module. If the patient

monitor identifies the replacement module and

can start measurement, it indicates that the

original module is faulty.

The parameter module

Verify the cable connecting the internal

does not respond

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-4

Cable defective from the

main control board to

the internal module rack

COM board



module rack COM board to the main control

board is connected reliably.

Verify the connecting cables and connectors



are not damaged.

Failure Description Possible Cause Troubleshooting

The parameter module

does not respond

Logic version error of

the internal module rack

COM board

Power supply to the

internal module rack is

not correct

Main control board

failure

Upgrade the logic version of the internal module

rack COM board.

The internal module rack COM board or main

control board may fail, and 12 V cannot be

output.

Replace the main control board.

4.6.4 Alarm Failures

Failure Description Possible Cause Troubleshooting

 Verify the cable connecting the alarm LED

board to the main control board is properly

connected.

 Verify the connecting cables and connectors

are not damaged.

Alarm LED off or cannot

be turned off while the

audible alarm is

sounding

Cable defective or

improperly connected

Alarm LED board failure Replace the alarm LED board.

No audible alarm sounds

emitted while the alarm

LED is normal

Main control board

failure

Replace the main control board.

Select the

Main Menu quick key, from the

System column, select Maintenance → enter

required password → select

Audible alarm disabled

Speaker failure Replace the speaker.

Cable defective or

improperly connected

Main control board

failure

Minimum Alarm Volume to a proper value.

Select the

column, select

proper value.

Verify the cable connecting the speaker to the

main control board is properly connected.

Replace the main control board.

Main Menu quick key, from the Alarm

Setup, adjust the alarm volume to a

Alarm, set

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-5

4.6.5 Output Interface Failures

Failure Description Possible Cause Troubleshooting

No output for the nurse

call signal

USB Device Unusable.

Network interface failure

DVI interface failure

Internal module rack

COM board defective

Main control board

defective

Cable defective or

improperly connected

Logic exception of the

internal module rack

COM board

Main control board

failure

Main control board

failure

Display not matched

with the DVI interface

time sequence

Replace the internal module rack COM board.

Replace the main control board.

Verify the cable connecting the main control



board to the internal module rack COM

Verify the connecting cables and connectors



are not damaged.

board is connected reliably.

Upgrade the logic of the internal module rack

COM board.

Replace the main control board.

Replace the main control board.

Use the recommended display.

Main control board

defective

External display model

not specified in the

manual

Touch screen failure of

the external display

Touch pad damage of

the external display

Touch pad firmware of

the external display

inconsistent with the

system software

Replace the main control board.

Use the display model recommended in the user

manual.

Replace the display.

Contact the display manufacturer to fix the

problem.

4-6 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

4.6.6 Power Supply Failures

Failure Description Possible Cause Troubleshooting

Battery damaged Replace the battery.

Verify the cable connecting the main control



Battery cannot supply

power

Battery cannot be

recharged or cannot be

fully recharged

Cable defective or

improperly connected

Battery damaged Battery change

Cable defective or

improperly connected

board to the battery interface board is

correctly connected.

Verify the connecting cables and connectors



are not damaged.

 Verify the cable connecting the main control

board to the battery interface board is

correctly connected.

Verify the connecting cables and connectors



are not damaged.

Main control board

failure

Replace the main control board.

4.6.7 Network Related Problems

Failure Description Possible Cause Troubleshooting

The patient monitor

cannot be connected

to iView system

Frequent dropouts

The patient monitor is

connected to a

network but cannot

view other patients in

the View Others mode

Improper network cable

connection

Incorrect network settings

Improper network cable

connection

Too many simultaneous

requests for viewing the

patient monitor

Check for network cable connection and

length (which should not exceed 50 m), or

check whether the laid network cable is too

near to the power supply for large power

equipment.

Check for IP conflict in the network. If conflict

is found, reset the network.

Check for network cable connection and

length (which should not exceed 50 m), or

check whether the laid network cable is too

near to the power supply for large power

equipment.

Confirm the maximum number of

simultaneously connected monitors

according to the user manual.

Incorrect network settings

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-7

Check for IP conflict in the network. If conflict

is found, reset the network.

Failure Description Possible Cause Troubleshooting

Failure to connect to a

wireless network

MPAN failure

Incorrect network settings

Antenna not installed

properly

Verify the wireless network settings are

correct.

Verify the antenna for the wireless network

card is connected to the wireless module

reliably.

Wireless module damaged Replace the wireless module.

Main control board failure Replace the main control board.

Antenna not installed

properly

Verify the antenna for the MPAN module is

installed properly.

MPAN module damaged Replace the MPAN module.

 Verify the cable connecting the MPAN

MPAN module not connected

to the internal module rack

COM board properly

module to the internal module rack COM

board is connected properly.

Verify the connecting cables and



connectors are not damaged.

Internal module rack COM

board defective

Replace the module rack COM board.

Wrong software version for

the MPAN module

Upgrade the MPAN module software.

4.6.8 Device Integration Failures

Failure Description Possible Cause Troubleshooting



Replace the ID adapter.

Upgrade the ID of the ID adapter in



"Factory Maintenance" menu.

Replace the serial port adapter cable.

Verify the protocol version and software

version are supported by the ID adapter.

Upgrade or update the software

application of the BeneLink module with

the network upgrading tool.

The "Devices

Integrated" window

displays nothing after

connection

Generate the alarm:

"BeneLink Comm Stop"

The ID adapter is not compatible

with the external device

The serial port adapter cable not

compatible with the external

device

Wrong software version or

wrong protocol version of the

external device

The BeneLink module

application software is corrupted

The patient monitor

has no response when

loading the ID adapter

The BeneLink module

application software is corrupted

Upgrade or update the software

application of the BeneLink module with

the network upgrading tool.

BeneLink module damaged Replace the module.

4-8 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

4.6.9 Recorder Failures

Failure Description Possible Cause Troubleshooting

Recorder module

disabled

Printing paper jam Reinstall the paper roll properly.

No printout

Cable defective or

improperly connected

Recorder failure Replace the recorder.

Main control board

failure

Printing paper thermal

coating failure

Poor printing effect

Thermal head dirty Clean the thermal head.

Recorder failure Replace the recorder.

Verify the recorder status LED is lit.

If it is lit, recover its function in "Factory

Maintenance".

 Verify the cable connecting the recorder and

the main control board is properly

Verify the connecting cables and connectors



are not damaged.

connected.

Replace the main control board.

Replace the printing paper.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 4-9

FOR YOUR NOTES

4-10 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

5 Hardware Configuration Options

5.1 Overview

This monitor supports optional monitoring parameter function modules, optional functional assemblies,

and network upgrade of software.

NOTE

 For function upgrade involving disassembly of the monitor, eliminate static electricity before

the disassembly. When removing some parts with the electrostatic sensitive mark, wear

protective devices such as electrostatic ring or anti-electrostatic gloves, lest the parts would be

damaged.

 Properly connect and route the cables and wires when reassembling the equipment to avoid

pinched hoses and electrical short circuits.

 Use specified screws to reassemble the equipment. If the incorrect screws are forcefully

tightened, the equipment may be damaged and the screws or part may fall off during use,

causing unpredictable equipment damage or human injury.

 Be sure to follow the correct sequence when disassembling the monitor.
 Before removing assemblies, make sure that all the connection lines have been unplugged.

During removal, note to avoid breaking the connection line by pulling or damaging the

connector.

 Place the removed screws and other parts separately by category so that they can be used in

the re-installation. Do not drop, contaminate or lose them.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 5-1

5.2 Optional Parameter Function Modules

You can install the following external modules:

Parameter Module Part No. Description

MPM module 115-056534-00

115-056535-00

115-056536-00

115-056537-00

115-056538-00

115-056539-00

IBP module 115-047286-00 IBP module

C.O. module 115-047285-00 C.O. upgrade package, no accessory

CO2 module 115-013201-00 ORIDION CO2 (package, no accessory)

115-056530-00 1-Slot CO2 module

115-056531-00 1-Slot CO2/O2 module

AG module 115-056533-00 2-Slot AG/O2 module

115-056532-00 2-Slot AG/O2/BIS module

BIS module 115-013194-00 BIS module (Package, no accessory)

RM module 115-047015-00 RM module

SPO2 module 115-056529-00 Masimo SpO2 module

115-034088-00 Nellcor SpO2 module (package, no accessory)

CCO/SvO2 module 115-013196-00 CCO/SvO2 module (Package, no accessory)

ScvO2 module 115-013199-00 SCVO2 module (Package, no accessory)

EEG module 115-018353-00 EEG module (Package, no accessory)

NMT module 115-020916-00 NMT module (Package, no accessory)

Benelink module 115-053710-00 BeneLink module package

rSO2 module 115-037264-00 rSO2module

TEMP module 115-039492-00 Temp module (package, no accessory)

Recorder module 115-053716-00 Recorder module

You can insert and remove all the external modules during patient monitoring. Refer to the BeneVision N

Series Patient Monitor Operator's Manual (P/N: 046-011259-00) for the use of parameter modules.

MPM-2 module (Masimo SpO2/3/5 lead ECG/IBP, FRU)

MPM-3 module (Nellcor SpO2/3/5 lead ECG/IBP, FRU)

MPM-8 module (Nellcor SpO2/3/5 lead, FRU)

MPM-9 module (Nellcor SpO2/3/5 lead, FRU)

MPM-14 module (Nellcor SpO2/12 lead ECG/IBP/Analog,

FRU)

MPM-15 module (Masimo SpO2/12 lead ECG/IBP/Analog

output, FRU)

5-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

5.3 Optional Functional Assemblies

NOTE

 When upgrading the wireless network, analog output and CIS function for a patient monitor

with standard configuration, you have to replace old PCBAs in the patient monitor with

corresponding PCBAs included in the upgrade kit and remove the covers of related connectors

in addition to installing the corresponding functional assemblies in the monitor.

Available functional upgrade options are:

Functional Assembly PN Name and Specification

SMR 115-033887-00

Recorder 115-044523-00 Recorder upgrade package

Wi-Fi 115-044521-00 2.4G/5G Wifi upgrade package

MPAN 115-044522-00 MPAN upgrade package

iView 115-050002-00

Independent Display 115-044554-00 ID upgrade package (Without MainBoard)

115-039575-00 2D Barcode scanner (USB) kit

2D barcode scanner

115-039635-00 2D Barcode scanner (support RFID) kit

This monitor is configured with wireless network functions and can be connected to network through

wireless AP. Contact Mindray Technical Support for assistance in connecting to a network.

5.3.1 Installing an SMR

The SMR can be connected to the patient monitor through the SMR connector via the SMR cable.

For details, see BeneVision N Series Patient Monitor Operator's Manual (P/N: 046-011259-00).

5.3.2 Setting up Wireless Network Functions

Installation and connection to a Wireless Network should be performed by Mindray Service

8-slot satellite module rack (SMR), with handle,

hook, and 2 m cable

iView upgrade package（Win 10）

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 5-3

The wireless signal can be affected by incorrect inaccuracy installation location of the antenna.

5.3.3 Upgrading Recorder

Refer to the corresponding section of this manual to install the recorder in your patient monitor.

5.3.4 Upgrading iView System

Refer to the corresponding section of this manual to install the related boards of the iView upgrade

package in your patient monitor.

NOTE

 During installation, use a blade to cut off the seals for the USB, DVI and network interface at

the rear case so that the interface can stretch out from the rear case.

5.3.5 Upgrading Independent Display Function

Refer to the corresponding section of this manual to install the related boards of the independent display

upgrade package in your patient monitor.

NOTE

 During installation, use a blade to cut off the DVI seal at the rear case so that the interface can

stretch out from the rear case.

5-4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 5-5

FOR YOUR NOTES

5-6 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6 Repair and Disassembly

6.1 Tools

During disassembly and repair, the following tools may be required:

 Phillips screwdrivers
 Small flat-bladed screwdriver (specification 101 or 102)
 Contact spanner (6800-J95)
 Tweezers
 Needle nose pliers
 M3 sleeve

6.2 Preparations for Disassembly

Before disassembling the monitor, make following preparations:

 Stop monitoring the patient, turn off the monitor and disconnect all the accessories and peripheral

devices.

 Disconnect the AC power supply and take out all the batteries.
 Remove all the parameter modules in the integral module rack;
 if the SMR is connected, disconnect the SMR from the monitor and then remove all the parameter

modules in it.

CAUTION

 Eliminate static electricity before the disassembly. When removing some parts with the

electrostatic sensitive mark, wear protective devices such as electrostatic ring or

anti-electrostatic gloves, lest the parts would be damaged.

 Properly connect and route the cables and wires when reassembling the equipment to avoid

pinched hoses and electrical short circuits.

 Use specified screws to reassemble the equipment. If the incorrect screws are forcefully

tightened, the equipment may be damaged and the screws or part may fall off during use,

causing unpredictable equipment damage or human injury.

 Be sure to follow the correct sequence when disassembling the monitor.
 Before removing assemblies, make sure that all the cables have been unplugged. During

removal, note to avoid breaking the cable by pulling or damaging the connector.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-1

CAUTION

 Place the removed screws and other parts separately by category so that they can be used in

the re-installation. Do not drop, contaminate or lose them.

6.3 Main Unit Disassembly

6.3.1 Basic Disassembly

1. Remove the power plug anti-pull hook from the rear case of the monitor.

2. Use a pair of tweezers to pry up the four screw covers at the four corners of the rear case and loosen and

remove the four M3×8 screws under them.

(Screw covers) (Screws)

6-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.3.2 Disconnecting the Base

NOTE

 When laying the monitor face down on, ensure the surface is static free and non-abrasive in

order to avoid damaging the touch screen.

 Be sure to remove the base first before proceeding with other parts.

1. As shown in the figure below, place the monitor face up, unscrew the M4×8 screws (5 for the N12

series and 6 for the N15N17 series) from the bottom case;

2. Pull out the base.

 For the N12 series machines, the base assembly can be removed when the base is pulled out.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-3

 For the N15N17 series machines, the base assembly can be removed when the cable connected

to the battery interface board of main board is pulled out.

J24

J20

NOTE

 Use caution when removing the Base so as not to damage the connectors and cables.

6.3.3 Separating the Front and Rear Half of the Monitor

1. After the base assembly is removed, carefully place the monitor face down.

NOTE

 When laying the monitor face down on, ensure the surface is static free and non-abrasive in

order to avoid damaging the touch screen.

 Release the clip (if any) on the cable socket before disconnecting the cable. Be sure to pull out

the base with proper force, without damaging the cables and connectors.

 For the N12 series machines, remove the cable for the LCD screen and the cable for the small

board of front case.

6-4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

 For the N15N17 series machines, remove the cable for the touch screen, cable for the LCD screen

and the cable for the small board of front case.

2. Lift the rear case assembly to separate it from the front case assembly.

NOTE

 As shown in the following figure, there are two types of front case assemblies (NLT or SHARP).

Cable connections differ between NLT and SHARP.

 N12

(N12 rear case assembly)

(N12-NLT front case assembly) (N12-SHARP front case assembly)

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-5

 N15

(N15 rear case assembly)

(N15-NLT front case assembly) (N15-SHARP front case assembly)

 N17

(N17 rear case assembly)

(N17-NLT front case assembly) (N17-SHARP front case assembly)

6-6 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.4 Further Disassembly of the Front Case Assembly

6.4.1 Removing the Power Switch Board

1. Remove the cable on the power switch board.

2. Remove the two PT3×8 screws and take out the power switch board.

2 pcs

NOTE

 Use care when disconnecting the cable to avoid damage. During installation, press the

board to the silicone keypad direction by aligning with the front case board positioning rib.

 Use care to avoid overtightening the screws and stripping the holes when remounting the

board.

6.4.2 Removing the Alarm Lamp and Light Sensor Board

1. Remove the cable on the alarm lamp and light sensor board.

2. Remove the two PT3×8 screws and take out the alarm lamp and light sensor board.

2 pcs PT3X8

Cable socket

NOTE

 Use care when disconnecting the cable to avoid damage.
 During installation, press the board to the alarm lamp shade direction by aligning with the

front case board positioning rib.

 Use care to avoid overtightening the screws and stripping the holes when remounting the

board.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-7

6.4.3 Removing the Screen Assembly Cables

1. Cut the cable tie and disconnect the cables connected to the display screen and touch screen control

board. All the cables can be removed by releasing the cable clamps on the front case.

Cable tie

(N12-NLT ) (N12-SHARP)

Cable tie

(N15-NLT ) (N15-SHARP)

Cable tie

(N17-NLT ) (N17-SHARP)

CAUTION

 Prevent pressure on the front face of display screen during disassembly.
 Remove the LCD screen assembly in an environment as dust-free as possible; the display screen

and touch screen are integrated materials and cannot be disassembled.

6-8 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

NOTE

6.5 Further Disassembly of the Rear Case Assembly

6.5.1 Removing the Recorder

1. First open the recorder door on the right of the machine, and then unscrew the two M3×6 screws.

2. Pull the two clips in as indicated in the figure below to separate it from the rear case, and pull out the

recorder at the same time.

3. After the recorder is pulled out, remove the Recorder Cable from the Positioning Rib and disconnect the

cable from the Recorder. The Recorder can now be removed.

M3X6

Clips

 Use care when disconnecting the cable to avoid damage.

6.5.2 Further Disassembly of the Recorder

1. First remove one PT2X6 screw, and remove the grounding piece at the same time.

Positioning rib

M2X6

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-9

Connector cable

2. Release the two clips backward and take out the recorder drive board. Pay attention to the snap in

the front.

Snap

3. First pull up the connector cable lock by about 1 mm to remove the flexible cable; remove the cable

from the drive board to the button board; unscrew one PT2×6 screw, and remove the ground cable

of the drive board. Remove the recorder drive board.

4. Remove the other PT2×6 screw and take out the thermal printhead.

5. Loosen and remove the two PT2×6 screws and remove the button board of recorder.

Recorder button

Thermal print head

NOTE

 Use care when disconnecting the cable to avoid damage.

6-10 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.5.3 Removing the Bluetooth Board

1. Pull out the MPAN board cable at the end of internal module rack communication board; then pull

out the MPAN antenna connector inserted on the Bluetooth board; unscrew one M3×6 screw to

remove the MPAN board.

2. Tear the MPAN antenna fixing piece. Then, the MPAN antenna can be removed.

NOTE

 Use care when disconnecting the cable to avoid damage.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-11

6.5.4 Removing the Wi-Fi Module

1. Press the clips at two sides of the Wi-Fi socket, and take out the Wi-Fi module from the socket.

2. Remove the adhesive tape fixing the antenna, and tear off the Wi-Fi sticker antenna.

3. Pull out the Wi-Fi antenna plug from the board; unscrew the three M2X4 screws, and separate the

Wi-Fi module from the Wi-Fi support board.

Wi-Fi module

Wi-Fi support board

6-12 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

NOTE

 Use care when disconnecting the cable to avoid damage.
 Use care when removing the Wi-Fi Module from the Wi-Fi Support board to avoid

damage to the connector.

that you maintain your product better.

Provides application tips or other useful information to ensure

6.5.5 Removing the Internal Module Rack Assembly

NOTE

 Release the cable clips on the socket before attempting to disconnect the cable. Failure to do

so will damage the cable.

 N12

1. Disconnect the battery interface cable from the main board, then disconnect the internal module

rack COMM board cable. Remove four M3x6 screws and lift up to remove the battery holder

assembly.

Cable of battery interface board

J10

J20

Cable of internal module

rack COMM board

2. Loosen and remove the two M3X6 screws, and remove the battery interface board.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-13

3. Loosen and remove the five M3X6 screws, and lift upward to remove the internal module rack

assembly as indicated in the figure.

4. Place the face of the removed module rack assembly board up. First unscrew the two M2.5X6 screws

on the SMR interface, the two PT3X8 screws, and the six M3X6 screws in turn, and then remove the

internal module rack COMM board.

M3X6

M2.5X

SMR interface sheet metal

5. Turn over the removed internal module rack COMM board, and remove the four POGO PIN silicon

cases.

PT3X8

6-14 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

 N15N17

1. First remove the cable of internal module rack COMM board; unscrew the four M3X6 screws

according to the positions shown below, and loosen one captive screw; force upward to remove the

module rack assembly as indicated in the figure.

Cable of internal module rack COMM board

One captive screw

2. Place the face of the removed module rack assembly board up. First unscrew the two M2.5X6 screws

on the SMR interface, the two PT3X8 screws, and the seven M3X6 screws in turn, and then remove

the internal module rack COMM board.

M2.5X

M3X6

PT3X8

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-15

3. Turn over the removed internal module rack COMM board, and remove the six POGO PIN silicon

cases.

6.5.6 Removing the Main Support Assembly (N12& N15)

 N12

1. Disconnect the Speaker cable, unscrew the two M3X6 screws, and remove the speaker assembly.

Speaker cable

2. Loosen and remove the five M3X6 screws, and vertically take out the main support assembly.

6-16 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

3. As shown in the figure below, after removing the main support assembly, place the main control

board with face upwards. Remove the cable between the main control board and the ACDC power

supply board., Unscrew the two DVI stud screws and four M3X6 screws, and then take out the main

control board.

Cable from the main

control board to the

ACDC Power Supply

4. Turn over the main support assembly with the ACDC power supply board facing up. Disconnect the

other end of the cable between the main board and the ACDC power supply board. Then disconnect

the cable between the AC input to the ACDC power supply board. . Unscrew four M3X6 screws, and

remove the power board.

DVI stud screw

Cable between the AC

input to the ACDC power

supply board

Cable from the main

control board to the

ACDC Power Supply

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-17

5. Loosen and remove two M3X6 screws and take out the recorder cover. Unscrew one M3X6 screw, and

remove the cable from the AC input to ACDC power supply board.

Recorder cover

Cable from the AC input to

 N15/N17

1. Disconnect the speaker cable. Loosen and remove the two M3X6 screws, and remove the speaker

assembly.

ACDC Power Supply

Speaker cable

2. As shown below, for the N15 series machine, loosen and remove the five M3X6 screws, and lift out the

main support assembly.

(N15)

6-18 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

As shown below, for the N17 series machine, loosen and remove the six M3X6 screws, and lift out the

main support assembly.

(N17)

3. As shown in the figure below, after removing the main support assembly, place the main control

board with face upwards. Remove the cable between the main control board and the ACDC power

supply board. Unscrew the two DVI stud screws and four M3X6 screws, and then take out the main

control board.

Cable from the main control board

to the ACDC

4. Turn over the main support assembly with the ACDC power supply board facing up. Disconnect the

other end of the cable between the main board and the ACDC power supply board. Then disconnect

the cable between the AC input to the ACDC power supply board. Unscrew and remove the four

M3X6 screws, and remove the power board.

Cable from the main control board

to the ACDC

Power board

AC input to ACDC power cord

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-19

5. Cut off the cable tie on the cable. Unscrew and remove the two M3X6 screws, and take out the

recorder cover. Unscrew and remove one M3X6 screw, and remove the cable from the AC Input

Connector to the ACDC Power Supply.

NOTE

 Use care not to damage the cable when cutting the tie.

Cable tie

6.5.7 Removing the iView Board Assembly (N17)

1. First unscrew the two DVI stud screws.

6-20 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

2. Remove the two iView board cable and the internal module rack cable. Loosen and remove the four

M3X6 screws, and then take out the iView board assembly.

Two iView board cables

3. Place the face of the removed iView board assembly board up, and remove the SSD hard disk by

pressing the SSD hard disk clips; loosen and remove the four M3X6 screws, and remove the iView

board.

SSD hard disk clips

4. As shown below, place up the face of the iView board side with the computer module. Loosen and

remove the four M2X6 screws, and separate the computer module from the iView support board.

Computer

module

iView support

board

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-21

6.5.8 Removing the Independent Display Board Assembly (N17 Series)

1. First unscrew the two DVI stud screws.

2. Remove the independent display board cable and the internal module rack cable. Loosen and

remove the four M3X6 screws, and then remove the independent display board assembly.

3. Loosen and remove the four M3X6 screws, and remove the independent display board.

6-22 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.5.9 Removing the Handle

1. Place the face of the rear case handle down. Loosen and remove the two PT 3X8 screws, forcibly

release the four clips on the top cover of rear case, and push down to take out the top cover of rear

case.

2. Pry the two handle pins towards the center of the case, then remove the handle.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-23

6.6 Further Disassembly of the Base Assembly

 N12

Remove the battery door connecting belt from the through hole, and remove the battery door.

 N15/N17

1. Loosen and remove the two M3X6 screws, and remove the battery interface board.

2. As shown below, open the battery door, insert a pad between the battery door and the base and

press down firmly to remove the battery door.

6-24 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

6.7 Disassembling the Module Rack

M3X8 screw

1. Removing the handle and hooks

 As shown in the following figure, loosen and remove the eight M3X10 cross recessed screws, and

remove the hooks.

M3X10

 As shown in the following figure, loosen and remove the three M3×8 cross recessed screws, and

remove the handle.

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-25

2. Removing the rear case of module rack

As shown in the following figure, use a tweezer to take out the six screw covers on the rear case.

Loosen and remove the six M3X16 cross recessed pan head screws, and separate the front case from

the rear case.

Screw cover

M3X16 screw

3. Removing the module rack interface board

Loosen and remove the two M3X8 cross recessed pan head screws, disconnect the cable between the

interface board and the internal module rack COMM board, and then remove the interface board.

M3X8 screw

Cable from the interface board of

external module rack to the 8-slot board

6-26 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

4. Removing the internal module rack COMM board.

Disconnect the cable between the module rack antenna and the internal module rack COMM board.

Loosen and remove the seven M3X8 cross recessed pan head screws on the internal module rack

COMM board, and remove the eight POGO PIN silicon cases from the module rack.

Module rack antenna

M3X6 screw

POGO PIN silicon cases of

module rack

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-27

6.8 Disassembling the MPM Module

1. Removing the front panel assembly

 As shown in the figure, use a contact wrench to remove the screw for the back end terminal of

the module; use a small flat-bladed screwdriver to remove the module retention tabs. Use a

Phillips screwdriver to remove the front panel screw. Then, the front panel of module can be

removed.

Use a contact wrench to

remove the terminal screw

 As shown in the following figure, loosen and remove the screw between the front panel and the

bracket, and unplug the air tube at the air nozzle. Then the front panel can be removed.

Remove the module

retention tabs

Remove the screw

Remove the

bracket screw

2. Remove the parameter board

As shown in the following figure, loosen and remove the board screws. Remove pull out the pump

and valve cable and NIBP air tube. Then, the parameter board can be removed.

Parameter board screws and

cable

Remove along this direction

6-28 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

Cut the
cable tie

Release the clips

Disconnect power lines

3. Removing the blood oxygen board

As shown in the following figure, remove the blood oxygen board screws, and then remove the blood

oxygen board.

Remove the screws here

4. Removing the infrared board

As shown in the following figure, remove the infrared board cable and then remove the infrared

board.

Remove from this end

5. Removing the pump and valve

Cut the cable tie, disconnect the pump power cable and NIBP air tube, and then remove the pump.

Disconnect the valve power cable and NIBP air tube, use a flat-bladed screwdriver to release the clips

on the sides of the valve, and then remove the valve assembly.

s

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 6-29

FOR YOUR NOTES

6-30 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

7 Parts

This chapter lists the exploded views and material codes of the parts including the monitor's main unit,

SMR and parameter module. It helps the engineer to identify the parts during disassembly of the patient

monitor and spare parts replacement.

7.1 N12 Parts

7.1.1 N12 Whole Unit

7.1.1.1 Exploded View

7.1.1.2 Parts List

ITEM No. Description Qty FRU Part No.

1

2 N12rear housing assembly (with TDS/BNC, with DVI) 1 /

3 N12 screw cover / 049-001226-00

4 Cross recessed pan head screw, GB/T818-2000 M4X30 / /

5 AC inlet hook 1 9211-20-87369

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-1

N12-NLT front housing assembly (FRU) 1 115-044502-00

N12-Sharp front housing assembly (FRU) 1 115-044503-00

7.1.2 N12-NLT Front Housing Assembly

7.1.2.1 Exploded View

7.1.2.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12-NLT front housing assembly (FRU) 1 115-044502-00

2 Screen clip 2 033-000636-00*

3 Light guild pillar 1 043-007582-00

4 MK hood 1 049-001214-00

5 MK alarm cap 1 049-001135-00

6 Alarm LED and Light Sensor Board PCBA 1 051-002693-00

7 Cross recessed pan head screws, PT3X8 4 /

8 N12 front shell plate cable 1 009-006396-00*

9 N12 Mainboard to LCD cable (NLT) 1 009-006410-00*

10 Power Switch and Indicate LED Board PCBA 1 051-002711-00

7-2 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

ITEM No. Description Qty FRU Part No.

11 MK power button (P+R) 1 043-007956-01

12 Conductive cloth pad 0.08m /

13 Earth plate (N12) 1 042-018667-00*

14 CORE O.D=21.5mmI.D=9.5mm 1 /

*: included in No.1 N12-NLT front housing assembly (FRU) (115-044502-00).

7.1.3 N12-Sharp Front Housing Assembly

7.1.3.1 Exploded View

7.1.3.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12-Sharp front housing assembly (FRU) 1 115-044503-00

2 Screen clip 2 033-000636-00*

3 Light guild pillar 1 043-007582-00

4 MK hood 1 049-001214-00

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-3

ITEM No. Description Qty FRU Part No.

5 MK alarm cap 1 049-001135-00

6 Alarm LED and Light Sensor Board PCBA 1 051-002693-00

7 Cross recessed pan head screws PT3X8 4 /

8 N12 front shell plate cable 1 009-006396-00*

9 N12 Mainboard to LCD cable (NLT) 1 009-006409-00*

10 Power Switch and Indicate LED Board PCBA 1 051-002711-00

11 MK power button (P+R) 1 043-007956-01

12 Earth plate (N12) 1 042-018667-00*

13 Conductive cloth pad 0.08m /

14 CORE O.D=21.5mmI.D=9.5mm 1 /

*: included in No.1 N12-Sharp front housing assembly (FRU) (115-044503-00)

7.1.4 N12 Rear Housing

7.1.4.1 Exploded View

7-4 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

7.1.4.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12 handle 1

2 Cushion pad /

3 N12 top cover 1 043-007578-01

4 Waterproof strip N12 1 048-006308-00

5 Handle Left Damping Block, N12 1 /

6 N12 rear housing (silk screen) 1 043-008005-01

7 N12 internal module rack assembly (with TDS/BNC) 1 /

8 Speaker bracket 1 115-044509-00

9 Speaker 2W 4ohm 500Hz 1

10 MK speaker foam 1

11 Cross recessed pan head screw, M3X6 with pad / /

12 N12 main bracket assembly (with DVI) 1 /

13 TR6F recorder 1 /

14 Handle Right Damping Block, N12 1 /

15 Self-Clinching Pilot Pins.TPS-3-18 / /

16 Screw cap 2(T8) / 049-000650-00

17 Cross recessed pan head crews,PT3X8 / /

18 Conductive foam 2.0*7.0mm / /

115-044501-00

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-5

7.1.5 N12 Rear Housing Assembly (FRU)(115-044499-00)

7.1.5.1 Exploded View

7.1.5.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12 rear housing (silk screen) 1 043-008005-01

2 Handle Right Damping Block, N12 1 049-001250-00

3 Screw cap 2(T8) 3 /

4 Waterproof strip N12 1 048-006308-00

5 Handle Left Damping Block, N12 1 049-001249-00

6 Conductive foam 2.0*7.0 mm 0.11m /

7-6 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

7.1.6 N12 Battery Cavity Assembly (FRU)(115-044504-00)

7.1.6.1 Exploded View

7.1.6.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12 battery cavity 1 /

2

3 Battery bar 1 9211-20-87256

4 Battery bar sleeve 1 /

5 Cushion pad.Bumpon SJ5302, white and transparent 1 /

Cross recessed pan head screw GB/T818-2000 M4X30

plated with green color zinc

1 /

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-7

7.1.7 N12 Module Rack Body Assembly (FRU) (115-044507-00)

7.1.7.1 Exploded View

7.1.7.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N12 module rack (four slots) 1 /

2 Infrared lens 4 047-005213-00

3 Contact screw 8 6800-21-51100

4 Contact spring 8 6800-20-50261

5 Spring 8 6800-20-50388

6 Flat washer 8 /

7 Hex nut and taper lock washer assembly, M3 8 /

7-8 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

7.2 N 15 Parts

7.2.1 N15 Whole Unit

7.2.1.1 Exploded View

7.2.1.2 Parts List

ITEM No. Description Qty FRU Part No.

1

2 N15 rear housing assembly (with SMR/BNC) 1 /

3 N15 base assembly (FRU) 1 115-044543-00

4 Screw / /

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-9

N15-NLT front housing assembly (FRU) 1 115-044544-00

N15-Sharp front housing assembly (FRU) 1 115-044545-00

7.2.2 N15-NLT Front Housing Assembly

7.2.2.1 Exploded View

7.2.2.2 Parts List

ITEM No. Description Qty FRU Part No.

1

2 Screen clip 4 033-000636-00*

3 Light guild pillar 1 043-007582-00

4 MK alarm cap 1 049-001135-00

5 MK hood 1 049-001214-00

6

7

8 N15N17 front shell plate cable 1 009-006736-00*

9 CORE O.D=21.5mmI.D=9.5mm 1 1 /

10 N15 Mainboard to LCD cable (NLT) 1 009-006408-00*

11 N15N17 touch screen cable (NLT) 1 009-006397-00*

12 Power Switch and Indicate LED 1 051-002711-00

N15-NLT Front Housing Assembly

(FRU)

Alarm LED and Light Sensor Board

PCBA

Cross recessed pan head

thread-cutting tapping screws

PT3X8 plated with green color zinc

1 115-044544-00

1 051-002693-00

4 /

7-10 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

ITEM No. Description Qty FRU Part No.

Board PCBA

13 MK power button (P+R) 1 043-007956-01

14 Conductive cloth pad 0.08m /

15 Earth plate (NLT) 1 042-017398-00*

*: included in No.1 N15-NLT front housing assembly (FRU) (115-044544-00)

7.2.3 N15-Sharp Front Housing

7.2.3.1 Exploded View

7.2.3.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N15-Sharp front housing assembly (FRU) 1 115-044545-00

2 Screen clip 4 033-000636-00*

3 Light guild pillar 1 043-007582-00

4 MK alarm cap 1 049-001135-00

5 MK hood 1 049-001214-00

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-11

ITEM No. Description Qty FRU Part No.

6 Alarm LED and Light Sensor Board PCBA 1 051-002693-00

7 Cross recessed pan head screws,PT3X8 4 /

8 N15N17 front shell plate cable 1 009-006736-00*

9 CORE O.D=21.5mmI.D=9.5mm 1 1 /

10 N15 Mainboard to LCD cable (Sharp) 1 009-006407-00*

11 N15N17 touch screen cable (Sharp) 1 009-006730-00*

12 Power Switch and Indicate LED Board PCBA 1 051-002711-00

13 MK power button (P+R) 1 043-007956-01

14 Conductive cloth pad 0.08m /

15 Earth plate (N15-Sharp) 1 042-018592-00*

*: included in No.1 N15-Sharp front housing assembly (FRU) (115-044545-00)

7.2.4 N15 Rear Housing

7.2.4.1 Exploded View

7-12 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual

7.2.4.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N15 rear housing 1 043-008003-01

2 Handle left damping block, N15 1 /

3 N15 top cover 1 043-007566-01

4 N15 handle 1

5 Cushion pad 1

6 Blind rivet hole BSO-3.5M3-28 ZC 2

7 Handle right damping block, N15 1 /

8 Cross recessed pan head thread-cutting tapping

screws PT3X8 plated with green color zinc

9 Recorder door 1 043-008499-00

10 MK speaker foam 1 115-044547-00

11 Speaker 2W 4ohm 500Hz 1

12 Speaker bracket 1

13 N 15 main bracket assembly (with DVI) 1 /

14 N15N17 module rack assembly (with SMR/BNC) 1 /

15 Screw / /

16 Conductive foam 2.0*7.0mm / /

/ /

115-044542-00

BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual 7-13

7.2.5 N15 Rear Housing Assembly (FRU) (115-044541-00)

7.2.5.1 Exploded View

7.2.5.2 Parts List

ITEM No. Description Qty FRU Part No.

1 N15 rear housing (silk screen) 1 043-008003-01

2 Waterproof foam (N15) 1 048-006291-00

3 N15 Handle Right Damp 1 049-001283-00

4 N15 Handle Left Damp 1 049-001284-00

5 Conductive foam 2.0*7.0 mm 3 /

7-14 BeneVision N17/BeneVision N15/BeneVision N12 Patient Monitor Service Manual