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BeneVision N1 Service Manual

Patient monitor
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Patient Monitor
Service Manual

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Summary of Contents for BeneVision N1

  • Page 1 BeneVision N1 Patient Monitor Service Manual...
  • Page 3 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.
  • Page 4 Preface Manual Purpose This manual provides detailed information about the assembling, dissembling, testing and troubleshooting of the equipment to support effective troubleshooting and repair. It is not intended to be a comprehensive, in-depth explanation of the product architecture or technical implementation. Observance of the manual is a prerequisite for proper equipment maintenance and prevents equipment damage and personnel injury.

  • Page 5: Table Of Contents

    Contents 1 Safety ....................................1-1 1.1 Safety Information ......................................1-1 1.1.1 DANGER ........................................ 1-1 1.1.2 WARNING ......................................1-1 1.1.3 CAUTION ......................................1-2 1.1.4 NOTE ........................................1-2 1.2 Equipment Symbols ....................................... 1-2 2 Theory of Operation ................................2-1 2.1 Overview ..........................................2-1 2.1.1 Front View ......................................
  • Page 6 5.1.1 Test Equipment ....................................5-1 5.1.2 Test Report ......................................5-1 5.1.3 Preventative Maintenance ................................5-1 5.1.4 Recommended Frequency ................................5-2 5.2 Preventative Maintenance ................................... 5-2 5.2.1 Visual Inspection ....................................5-2 5.2.2 NIBP Tests ......................................5-3 5.2.3 Sidestream and Microstream CO Modules Tests and Calibration ..................
  • Page 7 8.3.8 Removing the NIBP Pump ................................8-11 8.3.9 Removing the CO Module ................................8-13 8.3.10 Removing the CO Module Assembly ...........................8-15 8.3.11 Removing the Interface Board..............................8-16 8.4 Disassembling the N1 Main Unit with Two Batteries ........................8-17 8.4.1 Removing the Battery Door and Battery ..........................8-17...
  • Page 8 8.5.5 Removing the Port Module .................................8-30 8.5.6 Removing the Interface Board and Power Board ........................8-31 8.5.7 Removing the LED Indicator ...............................8-32 8.6 Removing the N1 Modular Rack ................................8-33 8.6.1 Removing the Rear Housing ...............................8-33 8.6.2 Removing the Unlock Rod ................................8-34 8.6.3 Removing the Infrared Backboard ............................8-34...

  • Page 9: Safety

    Safety 1.1 Safety Information DANGER 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 ...

  • Page 10: Caution

    Protect the monitor from damage caused by drop, impact, strong vibration or other mechanical force.  1.1.4 NOTE NOTE Refer to Operator's Manual for detailed operation and other information.  1.2 Equipment Symbols For equipment symbols of the monitor, refer to BeneVision N1 Ops Manual (P/N: 046-011407-00).

  • Page 11: Theory Of Operation

    Theory of Operation 2.1 Overview This monitor is intended for monitoring, displaying, reviewing, storing, alarming, and transferring of patients' physiological parameters, including electrocardiogram (ECG), respiration (RESP), temperature (TEMP), pulse oxygen saturation (SpO ), pulse rate (PR), non-invasive blood pressure (NIBP), invasive blood pressure (IBP), continuous cardiac output (CCO) for adults, carbon dioxide (CO ), and oxygen (O The monitor is to be used in healthcare facilities.

  • Page 12: Left View

    Multi-pin connector: connects N1 to the Dock or the Modular Rack. External DC power input connector: connects N1 to the external AC adapter. NOTE Dry the multi-pin connector of N1 before connecting N1 to the Modular Rack or Dock in case of water  spray.

  • Page 13: Right View

    2.1.3 Right View Power switch and LED On: Press this button to turn on the monitor.  Off: Press and hold this button for 3 seconds to turn off the monitor.  Forcible shutdown: If the monitor cannot be turned off normally, press and hold this button for 10 seconds to ...

  • Page 14: Bottom View

    Clip: fastens N1 when N1 is in use with the host monitor. Latch: locks N1 when N1 is in use with the host monitor. Press the latch to release N1 so that you can remove N1 from the host monitor.

  • Page 15: System Composition

    2.2 System Composition The N1 monitor system consists of the N1 main unit, Dock, Modular Rack, single-slot module, external display, AC adapter, Transport Dock and the peripherals such as keyboard, mouse, scanner, and printer, as shown in the figure below:...

  • Page 16: Main Unit System Structure

    Transport Dock: secures N1 in airplanes and ambulances and supplies power to N1.  2.2.1 Main Unit System Structure The figure below shows the system structure of the N1 main unit. One should be selected from the battery B and CO related components. In the figure: Battery B exists only in the N1 main unit (without CO ...
  • Page 17 2.2.1.1 Main Board The main board is the control core of the entire system. Its main functions are as follows: display driver and backlight control  touchscreen driver  external display VGA drive  audio driver  integrating the alarm lamp ...

  • Page 18: Modular Rack And Dock System Composition

    The above figure shows the connection and system composition relationships between the N1, Modular Rack, and Dock. The three can be interconnected through the pluggable 54-pin connector. N1 functions as the system core. The Modular Rack and Dock expand the functions of N1.

  • Page 19: Extended Parameter Module Composition

    Rack NIOS board. The parameter module is a one-slot parameter module of thehigh-end monitor. When N1 is in use with the Dock, it can be connected to the Dock interface power board through the Dock adapter board. In this way, the Dock interface board supplies power to N1. N1 connects the USB, external device connector (Mini DB15), VGA and wired network port to the Dock response interface to implement external interface connection and extension.
  • Page 20 FOR YOUR NOTES 2-10...

  • Page 21: Wlan Installation

    WLAN Installation 3.1 Introduction This chapter describes how to install the Mindray patient monitor that uses the wireless local area network (WLAN). 3.2 Network Deployment Process The figure below shows the network deployment process when a WLAN is available in the hospital: Figure 3-1 Network deployment process...

  • Page 22: Output List

    3.2.1 Output List Operation Output Requirement Template Wireless network requirements of Determine the wireless network Wireless network the Mindray patient monitor deployment requirements of the requirement table Mindray patient monitor. Network acceptance report Check if the customer's network meets Wireless network the requirements of the Mindray patient acceptance table monitor through questionnaire survey...

  • Page 23: Network Requirements

    Operation Output Requirement Template Wireless network Determine the wireless network deployment Wireless network requirements of the requirements of the Mindray patient monitor. requirement table Mindray patient monitor Network design documents and materials list Installation confirmation Confirm the actual operation of the Mindray Patient monitor installation report patient monitor after installation.

  • Page 24: Network Acceptance

    After network acceptance, individuals cannot build APs without permission. Otherwise, the Wi-Fi channel  interference will increase. If WPA2-PSK or WPA2-Enterprise is not used, N1 may not operate properly or patient information may  leaks out. Timeout disconnection means functional failures of waveforms, parameters, patient information, ...

  • Page 25: Wi-Fi Signal Calibration

    3.4.2 Wi-Fi Signal Calibration Before using the wireless network survey tool (running on a laptop) to test the network coverage, use the patient monitor to calibrate the RSSI of the tool as follows: Keep the patient monitor close to the tool. The distance between the patient monitor and the tool is not greater than 30 cm.
  • Page 26 Item Requirements Verification Method Check Result than 50% of the AP capacity. For Obtain the AP data manual according to the example, the number of devices model to confirm the AP-related capabilities. normally connected to an AP is 16 in the coverage of the AP. Then the nominal number of devices that can be connected to the AP at the same time must be greater than...

  • Page 27: Using The Patient Monitor To Evaluate Network Coverage

    Item Requirements Verification Method Check Result The required bandwidth is 6.14 Mbps. Important settings DHCP The DHCP server needs to reserve Check if this requirement is satisfied together with enough IP addresses to ensure the IT department of the hospital. that the patient monitor can obtain the IP address.

  • Page 28: Recommended Network Devices

    Table 3-3 Patient monitor installation confirmation table Test or Observation Item Result (Pass, Fail or NA) Execute the Ping command on the central monitoring system for the patient monitor. Make sure that the average delay is less than 250 milliseconds, and the packet loss rate is less than 1%.
  • Page 29 Parameter Recommended Setting Description Authentication Options: ACS and SBR server type ACS refers to the Cisco access control server. SBR refers to the server different from ACS. This is applicable only when the security type is Enterprise. BG channel Specified channel Options: all, specified channel You can limit the channels that can be connected to the monitor, so as to improve stability and roaming performance.

  • Page 30: Troubleshooting

    When you select the EAP authentication method, the system displays the corresponding configuration items. The following table lists the configuration items of different EAP methods. User Identity Anonymous Password Certificate Certificate Certificate Password PEAP-MSCHAPV2 PEAP-GTC PEAP-TLS TTLS FAST LEAP NOTE Y means "Yes", N means "No,"...
  • Page 31 Symptom Possible Cause Recommended Measures The SSID, IP address obtaining mode and Reconfigure the information as instructed in this manual. safe mode are not properly configured on the patient monitor. The patient monitor fails. Check if another patient monitor can be connected online. If yes, restart this patient monitor and ensure that the two patient monitors have the same configuration.
  • Page 32 Symptom Possible Cause Recommended Measures There is radio interference. Use the network survey tool to check if there is any radio interference. Remove obvious interference sources or adjust the WLAN deployment to meet the requirements of Mindray. 3-12...

  • Page 33: Unpacking And Installation

    Check whether a network connector is available if the monitor needs to connect to the wired network. WARNING When using the N1 Dock, use only the power cord supplied by the manufacturer to connect the AC power  supply. When using the monitor alone, use only the DC adapter supplied by the manufacturer to connect the external power supply.
  • Page 34 Relative Humidity (Non-condensing) Atmospheric Pressure (kPa) Working 10~40 15%~75% 57.0~107.4 environment Storage and –20~60 10%~90% 16.0~107.4 transport environment N1 Dock and N1 Modular Rack Item Temperature (°C) Relative Humidity (Non-condensing) Atmospheric Pressure (kPa) Working 0~40 15%~95% 57.0~107.4 environment Storage and –20~60 10%~95% 16.0~107.4...
  • Page 35 4.2.1.2 Electrical Requirements The monitor can be powered by an AC power supply through the N1 Dock, or it can be directly connected to an external power supply using an adapter. The power cord must be connected only to a power socket with protective grounding.
  • Page 36 FOR YOUR NOTES...

  • Page 37: Testing And Maintenance

    Testing and Maintenance 5.1 Introduction To ensure the monitor always functions properly, qualified service personnel should perform regular inspection, maintenance, and test. This chapter describes the procedures for testing the monitor with recommended test tools and frequency. The service personnel should perform testing and maintenance as required and use appropriate test tools. The procedures are intended to verify that the monitor meets the performance specifications.

  • Page 38: Recommended Frequency

    5.1.4 Recommended Frequency Check/Maintenance Item Frequency Visual inspection When the monitor is installed for the first time or is reinstalled. Power-on test When the monitor is installed for the first time or is reinstalled. Following any repair or parts replacement. EGG test and Performance test When the user suspects that the measurement is incorrect.

  • Page 39: Nibp Tests

    5.2.2 NIBP Tests 5.2.2.1 NIBP Leakage Test NOTE You should perform the NIBP leakage test before any other NIBP concerned test and calibration.  Tools required: NIBP cuff for adult patient  Air tubing  Cylinder  Follow this procedure to perform the test: Patient Category Adult Connect the NIBP cuff to the NIBP connector on the monitor.

  • Page 40: Sidestream And Microstream Co 2 Modules Tests And Calibration

    T-shape connector  Air tubing  Balloon pump  Rigid vessel with volume 500±25 ml  Standard manometer (calibrated with accuracy greater than or equal to 0.75 mmHg)  Follow this procedure to perform the test: Connect the monitor and the test tools as shown below. Monitor Standard manometer Air tubing7...
  • Page 41 Calibrate to check that the current CO flow rate is less than 10 ml/min. If the alarm message remains on the screen, it indicates that the module does not leak. Purging Microstream: After 3 seconds, the alarm message " " is displayed on the screen. Block the gas ...

  • Page 42: Power-On Test

    Main Menu Maintenance >> User Maintenance >> Select → enter the user maintenance →System→ → password →Module→CO →Calibrate. Zero In the Calibrate menu, select After the zero calibration succeeds, connect the monitor and the test tools as follows: Flowmeter Tubing Relief valve T-shape connector Monitor...

  • Page 43: Module Performance Tests

    The monitor automatically performs a self-test upon startup. During the self-test, you can hear the alarm tone, and the alarm lamp glows yellow and red. This indicates that the visible and audible alarm indicators operate properly. 5.4 Module Performance Tests 5.4.1 ECG Test and Calibration 5.4.1.1 ECG Performance Test Tools required:...

  • Page 44: Temp Test

    Patient Category Adult PR Source Connect the SpO sensor to the SpO connector on the monitor. Set on the monitor. Apply the SpO sensor to your ring finger (it is assumed that you are healthy). Check the Pleth wave and PR reading on the screen and make sure that the displayed SpO is within 95% and100%.
  • Page 45 Set the patient simulator to separately output 120/80 mmHg ART signals and 120/0 mmHg LV signals to the IBP channel and check that the IBP wave is displayed correctly. Repeat the preceding steps to test all IBP channels. 5.4.6.2 Pressure Calibration Method 1: Tools required: Patient simulator Medsim300B, MPS450, or equivalent equipment...

  • Page 46: Mainstream Co Module Test

    Main Menu Maintenance >> User Maintenance >> Cal. IBP Press. >> Select . Set the calibration value. → → → Use the balloon pump to inflate until the reading of the sphygmomanometer approximates to the preset calibration value. Adjust the calibration value in the Maintain IBP menu until it is equal to the reading of sphygmomanometer. Calibrate Select the button next to the target IBP channel to start calibration.

  • Page 47: Sidestream And Microstream Co 2 Modules Tests And Calibration

    Relief valve Flowmeter N2 gas cylinder Mainstream sensor T-shape connector T-shape Monitor Relief connector valve cylinder Separately turn on the relief valves of N gas cylinder and CO cylinder to ensure that only one gas cylinder is connected to the T-shape connector at a time. Separately adjust the relief valves to ensure a stable flow by maintaining the reading on the flowmeter at a value between 2 L/min and 5 L/min.
  • Page 48 Set the patient simulator to output ART signal to the pArt channel and CVP signal to the pCVP channel. Check whether the IBP waveform is correctly displayed. 5.4.9.2 Pressure Calibration Method 1: Tools required:  Patient simulator: Medsim300B PiCCO IBP test cable (P/N: 040-001300-00) ...

  • Page 49: Analog Output Test

    Use the balloon pump to inflate until the reading of the sphygmomanometer approximates to the preset calibration value. Adjust the calibration value in the Maintain IBP menu until it is equal to the reading of sphygmomanometer. Cal. IBP Press. Calibrate In the menu, select the button next to the target IBP channel to start calibration.

  • Page 50: Enclosure Leakage Current Test

    Device connection is shown in the following figure. E U T A : A C pow er supply (program m able, frequency control) B : Isolation transform er on leakage current test tooling C : S afety tester Tools required: Bio-Tek 601 Pro series safety analyzer ...

  • Page 51: Patient Auxiliary Current Test

    Network cable Set the IP address: Combination 1: N1+Dock Use current Dock net setting: Select Main Menu→Maintenance→User Maintenance→ enter the password →Dock Setup. Set Net Setting Type to Use current Dock net setting. Select the IP setup tab, and set the IP address of the...

  • Page 52: Print Function Test

    Use current N1 net setting: Select Main Menu→Maintenance→User Maintenance→ enter the password → Dock Setup. Set Net Setting Type to Use current N1 net setting. Select Main Menu → Maintenance >>→ User Maintenance >>→ enter the password → Network Setup. Set the IP address of the monitor to one in the same network segment as that of the network printer (refer to the instructions for use of the printer).

  • Page 53: Factory Maintenance

    → select OK→ select Factory Maintenance. 5.9.2 Monitor Information (Log Export) Note: Ensure that N1 is installed on the Dock. Make sure the file format of the USB drive is FAT32. Then insert the USB drive into the USB port on the Dock.

  • Page 54: Production Test

    5.9.3 Production Test Access the Production Test menu. Then you can perform basic function tests related to hardware connectors of the monitor. The production test includes the interaction test and single test. Interaction test: After you select Interaction Test, the system automatically completes all tests in sequence. ...

  • Page 55: Software Licensing

    5.9.4 Software Licensing Access the License menu to install or uninstall the license. 5.9.5 Settings Access the Setup menu to perform the ECG alarm setting or other settings. 5.9.6 Debugging Access the Debug menu to perform debugging related settings. 5.9.7 Power Information Access the Power Info menu to view the power status of the monitor.

  • Page 56: Battery Information

    5.9.8 Battery Information Access the Battery1 and Battery2 menus to view the battery status of the monitor. 5.9.9 Clinical Data Access the Clinical DataCollection menu to perform settings related to clinical data collection. When Clinical Data Location is set to None, the clinical data is stored on the monitor. You can export the data to the USB drive in the way of log export.

  • Page 57: Maintenance Test Report

    5.9.12 Maintenance Test Report (See the above sections for detailed test procedures and contents) Customer name Customer address Servicing person Servicing company Equipment under test (EUT) Model of EUT SN of EUT Hardware version Software version Test equipment Model/No. Effective date of calibration Test results Test items Test records...
  • Page 58 Power-on test The power-on test is passed. The power indicator and alarm system work correctly, and the monitor starts up properly. Performance test ECG performance test and calibration ECG waves are displayed correctly without noise and the displayed HR value is within 80±1 bpm.
  • Page 59 The C.O. measurement result is normally displayed. The displayed static pressure value of pArt is within 200±4 mmHg. The displayed static pressure value of pCVP is within 20±1 mmHg. The waveforms of pArt and pCVP are displayed correctly. Analog output test The waves displayed on the oscilloscope are identical with those displayed on the monitor.
  • Page 60 FOR YOUR NOTES 5-24...

  • Page 61: Troubleshooting

    Troubleshooting 6.1 Overview In this chapter, monitor problems are listed along with possible causes and recommended corrective actions. Refer to the tables to check the monitor and identify and eliminate these problems. The recommended solutions given in this chapter address most of the equipment problems you encounter, but do not include any problems that may arise.

  • Page 62: Technical Alarm Check

    Select Main Menu→Maintenance>>→ enter the user maintenance password →Version >>. In the displayed menu, you can check the version information of the system software and modules. 6.4 Technical Alarm Check Before troubleshooting the monitor, check whether the monitor displays technical alarm information. If yes, eliminate the technical alarm first.
  • Page 63 The N Series system software version is too low. In order for the N Series monitor to connect to the N1 which connects to the external IBP module and perform IBP monitoring, the system software of N 1 and N series monitor should V02.25 and above.
  • Page 64 If the problem persists, accessing Factory Maintenance Menu to format dock EEPROM. Then, perform crossmatching on dock, Rack and N1/T1 main unit to locate the fault. Power Board Cannot be cleared Restart the monitor. If the alarm High...

  • Page 65: Troubleshooting Guide

    Message Severity Alarm Clearing Causes and Countermeasures discharged patients. 6.5 Troubleshooting Guide 6.5.1 Power-On/Off Failures Failure Description Possible Cause Troubleshooting You cannot turn on the The battery is not activated. Use the AC adapter or Dock to supply external power to monitor powered only activate the battery.

  • Page 66: Alarm Failures

    The connection sequence Connect the display and the Dock first, and then install or start black. is incorrect. The touchscreen of the The USB connection is Reinstall or restart N1. external display cannot abnormal. be used.

  • Page 67: Operation Failures

    Failure Description Possible Cause Troubleshooting Historical data and The data storage device is Restart N1. If the failure persists, enter the EMMC tab in the holographic waveforms faulty. Factory Maintenance menu to format the data storage device cannot be stored.

  • Page 68: Wi-Fi Failures

    The system reports a The battery connection Verify that the battery connection cable is properly connected battery communication cable is faulty. and the plug is not damaged. error. The power supply is faulty. Replace the main board. The system reports that The battery is aged.

  • Page 69: Wired Network Failures

    6.5.9 Wired Network Failures Failure Description Possible Cause Troubleshooting The monitor fails to The network cable fails Make sure that the network cable is properly connected and is not connect to a wired to be connected close to the power cord of high power equipment, and the length network.
  • Page 70 FOR YOUR NOTES 6-10...

  • Page 71: Hardware And Software Upgrade

    2.4 GHz and 5 GHz Wi-Fi modules supporting IEEE 802.11a/b/g/n and a dual-band Wi-Fi antenna need to be added for Wi-Fi module upgrade. Follow this procedure: Separate the main board from the main frame according to section 8.3 Disassembling the N1 Main Unit with the CO2 Module or section 8.4 Disassembling the N1 Main Unit with Two Batteries.
  • Page 72 Insert the antenna through the wire hole on the main frame Use three M2X4 cross recessed pan head screws to secure the Wi-Fi module to the main board. Three M2X4 cross recessed pan head screws Wi-Fi module Insert the antenna plug into the Wi-Fi receptacle as shown in the figure below. Make sure the outlet direction is correct and the main board does not crush the antenna.

  • Page 73: Software Upgrade

    The programs of this monitor can also be upgraded using a specially authorized USB drive (which contains the USB  drive upgrade BIOS program P/N: 110-004854-00). Software Name and Specification Remarks System software N1 system package package Handle software Handle RACK software M4 software Parameter related software Built-in M02D...

  • Page 74: Description Of Network Upgrade Tool

    7.2.1 escription of Network Upgrade Tool 7.2.1.1 Tool Software Installation Method Click the executive program "SystemUpdateTool.exe". Click to enter the interface for entering the SN. Enter the SN, and click to enter program installation location interface. Select the corresponding folder for installation, and click as instructed to complete the installation.
  • Page 75 Connect the hub to the network upgrade tool component (P/N: 115-020584-00) through a network cable, and  then insert the network upgrade tool component to the main unit interface of N1 in the same way as the above. The hub has multiple slots. Therefore, multiple (at least 5) monitors can be connected and upgraded at the same time.
  • Page 76 Select Phecda from the Select Product Type drop-down list. The following interface is displayed on the PC:...

  • Page 77: Guide To Software Upgrade Operations

    7.2.2 Guide to Software Upgrade Operations 7.2.2.1 System Software Upgrade Method Enter the main interface of downloading for system upgrade, and click Select the prepared system software upgrade package through browsing. Check that the selected content (including the upgrade item, check sum, version and note) is correct, and then click OK. At this time, the Start quick key of the main menu is enabled.

  • Page 78: Guide To Upgrade Through A Usb Drive

    7.2.2.2 Module Software Upgrade Upgrade the module program files according to the "System Software Upgrade Method". When the upgrade is completed, click the Stop button on the upgrade menu to stop the upgrade, unplug the network cable, turn off the monitor, and then restart the monitor.
  • Page 79 upper limit cannot be exceeded. You can use the up, down, left and right keys to switch and select the required upgrade package.  on the touchscreen or press the  arrow key on the keyboard to switch the upgrade program downward.

  • Page 80: Caa License Function Upgrade

    NOTE After upgrading the BIOS program, you need to upgrade the system program and other programs to  ensure their compatibility. Before upgrade, make sure the version of the upgrade package is the required one. To obtain the latest  upgrade package, contact Mindray Customer Service Department.

  • Page 81: Repair And Disassembly

    Small Phillips screwdriver (used to remove and install M2 screws; the head model is PH0)  Phillips screwdriver (used to remove and install M3 screws; when the N1 main unit face plate needs to be removed,  the rod length of the screwdriver must be greater than or equal to 115 mm) Tweezers ...

  • Page 82: Disassembling The N1 Main Unit With The Co Module

    8.3 Disassembling the N1 Main Unit with the CO Module 8.3.1 Removing the Battery Door and Battery Remove the screw cover and loosen the screw. Hold the screw with your hand and open the battery door. Pull out the battery connection cable and remove the battery.

  • Page 83: Removing The Display Assembly

    8.3.2 Removing the Display Assembly Use the small Phillips screwdriver to remove the two screen pins fixing the display assembly. Use one hand to support the display assembly, and use the screwdriver to press the hole in the battery housing and push out the display assembly, as shown below.

  • Page 84: Removing The Rear Housing

    NOTE If the light pipe of theindicator is released after the display assembly is removed, install the light pipe at  the position shown in the figure below. NOTE When assembling the display assembly, press the two corners shown in the figure below, and press the ...
  • Page 85  lay the N1 main unit flatwise, and turn the four screws by 2-3 circles for preliminary fixing; place the N1 main unit vertically, and use one hand to press the main unit and the other to tighten the screws.

  • Page 86: Removing The Infrared Backboard

    Loosen the two M3×5 screws fixing the infrared backboard. Remove the infrared backboard. Tilt the N1 main unit as shown below, and remove the two terminal nuts shown in the figure below. 8.3.5 Removing the Main Board Remove the four M3×5 screws fixing the main board.
  • Page 87 Check that the waterproof jacket and connection cable are installed properly when reassembling the DC-  in connection cable. Loosen the Wi-Fi antenna (when the N1 main unit is configured with the Wi-Fi function). NOTE To prevent the board from crushing the Wi-Fi antenna, route the Wi-Fi antenna according to the direction ...
  • Page 88 Loosen the connection cable of the CO module. Loosen the connection cable of the power switch on the main unit. Loosen the connection cable of the speaker.

  • Page 89: Removing The Parameter Board

    Loosen the connection cable of the analog output (when the N1 main unit is configured with analog output), and remove the main board. 8.3.6 Removing the Parameter Board Loosen the four M3×5 screws fixing the main board. Remove the block fixing the parameter board.

  • Page 90: Removing The Nibp Gas Circuit And Nibp Valve

    Loosen the NIBP pump connection cable and NIBP valve connection cable. Loosen the NIBP air tubing on the parameter board, and remove the parameter board. 8.3.7 Removing the NIBP Gas Circuit and NIBP Valve Loosen the connection between the NIBP gas circuit and interface board. Loosen the connection between the NIBP gas circuit and integrated pump pipe.

  • Page 91: Removing The Nibp Pump

    NOTE When installing the NIBP valve, place the cables upwards with the quick release valve of the red cable on  the left and the slow release valve of the blue cable on the right. Lead the NIBP pump connection cable through under the valve plate.
  • Page 92 Loosen the air inlet pipe of the CO module. Loosen the zero calibration pipe of the CO module. NOTE After reassembling the exhaust pipe, air inlet pipe and zero calibration pipe, clamp them in the tie mount  according to the sequence shown in the figure, and arrange them in order. Loosen the four M3×5 screws fixing the CO module sheet.

  • Page 93: Removing The Co Module

    Remove the CO module sheet. Remove the NIBP pump. 8.3.9 Removing the CO Module Loosen the mushroom head with a silicone cover on the CO module. Loosen the silicone cover head on the CO module. Loosen the connection cable between the CO module and water trap.
  • Page 94 Loosen the slot position of the connection cable. Use a pair of tweezers to remove the two CO module rings. NOTE When reinstalling the module rings, keep the ring side with a gap upward, and clamp the inverted  fastener of the ring into the hole in the silicone cover. Remove the CO module.

  • Page 95: Removing The Co Module Assembly

    8.3.10 Removing the CO Module Assembly Loosen the three M2.5×4 countersunk head screws on the cover plate of the CO module. Remove the cover plate of the CO module. Remove the end cap of the CO module gas circuit. Press the latch of the CO module connection cable, and remove the connection cable.

  • Page 96: Removing The Interface Board

    8.3.11 Removing the Interface Board Loosen the three M3×5 screws fixing the main frame. Remove the main frame. Loosen the M3×5 countersunk head screw fixing the power button. Remove the power keypad. Use one hand to loosen the latch fixing the CO water trap and the other to remove the CO water trap.

  • Page 97: Disassembling The N1 Main Unit With Two Batteries

    8.4 Disassembling the N1 Main Unit with Two Batteries 8.4.1 Removing the Battery Door and Battery Remove the screw cover and loosen the screw. Remove the screw, and then remove the battery door. Remove the battery from the primary battery housing, and remove the battery connection cable.

  • Page 98: Removing The Display Assembly

    8.4.2 Removing the Display Assembly Use the small Phillips screwdriver to remove the two screen pins fixing the display assembly. Use one hand to support the display assembly, and use the screwdriver to press the hole in the battery housing and push out the display assembly, as shown below.
  • Page 99 Use one hand to hold the display assembly as shown below, and the other to loosen the FPC plug wire on the display assembly, and remove the display assembly. NOTE If the light pipe of theindicator is released after the display assembly is removed, install the light pipe at ...

  • Page 100: Removing The Rear Housing

     lay the N1 main unit flatwise, and turn the four screws by 2-3 circles for preliminary fixing; place the N1 main unit vertically, and use one hand to press the main unit and the other to tighten the screws.

  • Page 101: Removing The Infrared Backboard

    Use your hand to press the battery housing to separate the main frame, and then remove the rear housing. 8.4.4 Removing the Infrared Backboard Loosen the two M3×5 screws fixing the infrared backboard. Remove the infrared backboard. Tilt the N1 main unit as shown below, and remove the two terminal nuts shown in the figure below. 8-21...

  • Page 102: Removing The Main Board

    8.4.5 Removing the Main Board Remove the four M3×5 screws fixing the main board. Remove the DC-in connection cable. NOTE Check that the waterproof jacket and connection cable are installed properly when reassembling the DC-  in connection cable. 8-22...
  • Page 103 Loosen the Wi-Fi antenna (when the N1 main unit is configured with the Wi-Fi function). NOTE To prevent the board from crushing the Wi-Fi antenna, route the Wi-Fi antenna according to the direction  shown in the figure when reassembling the Wi-Fi antenna.

  • Page 104: Removing The Parameter Board

    Loosen the connection cable of the speaker. Loosen the connection cable of the analog output (when the N1 main unit is configured with analog output), and remove the main board. 8.4.6 Removing the Parameter Board Loosen the four M3×5 screws fixing the main board.

  • Page 105: Removing The Nibp Gas Circuit And Secondary Battery Housing

    Use one hand to loosen the latch and the other to take the parameter board. Loosen the connection between the NIBP gas circuit and parameter board U26 sensor. Loosen the connection between the NIBP gas circuit and parameter board U23 sensor. Loosen the NIBP pump connection cable and NIBP valve connection cable, and remove the parameter board.
  • Page 106 Loosen the three M3×5 screws fixing the secondary battery housing. Use your hand to push the secondary battery housing to remove it from the latch. NOTE After reassembling the secondary battery housing, confirm that the pump connection cable and valve ...

  • Page 107: Removing The Nibp Pump And Valve

    Use a pair of tweezers to press the pump head, and remove the secondary battery housing. 8.4.8 Removing the NIBP Pump and Valve Remove the NIBP pump. Loosen the two clamping positions of the NIBP valve cable, and remove the valve. NOTE When reassembling the valve, place the quick release valve of the red cable on the left and the slow ...

  • Page 108: Removing The Interface Board

    Remove the main frame. Loosen the M3×5 countersunk head screw fixing the power button. Remove the power keypad. 8.5 Removing the N1 Dock 8.5.1 Removing the Bottom Housing Remove the four M3×8 screws from the bottom housing. Remove the bottom housing.

  • Page 109: Removing The Right Shell Assembly

    8.5.2 Removing the Right Shell Assembly Remove the four screw covers from the right shell. Remove the four M3×8 screws from the right shell. Remove the right shell module. 8.5.3 Removing the Rotatable Plate Remove the four M3×8 screws with pad from the rotatable plate. Remove the rotatable plate.

  • Page 110: Removing The Port Module

    Remove the transition board, and loosen the connection cable. NOTE During reassembly, route the connection cable as shown below. Do not press any cables.  8.5.5 Removing the Port Module Remove the two M3×6 screws from the port module. Remove the port module, and loosen the indicator connection cable. 8-30...

  • Page 111: Removing The Interface Board And Power Board

    NOTE During reassembly, the sheet metal of the port module is clamped on the latch as shown below. Be sure  to properly assemble the silicone cover of the network cable connector. 8.5.6 Removing the Interface Board and Power Board Remove the plug wire from the interface board.

  • Page 112: Removing The Led Indicator

    Remove the four M3×6 screws from the power board. Remove the power board. Loosen the latch on the power outlet, and remove the power connection cable. 8.5.7 Removing the LED Indicator Remove the LED bracket. Remove the LED indicator. NOTE During reassembly, the indicator with the yellow cable is installed on the left, and the indicator with the ...

  • Page 113: Removing The N1 Modular Rack

    8.6 Removing the N1 Modular Rack 8.6.1 Removing the Rear Housing Remove the five screw covers from the rear housing. Loosen the five M3×8 screws on the rear housing. Remove the rear housing. NOTE After reinstalling the rear housing, check that the unlocking button works well.

  • Page 114: Removing The Unlock Rod

    8.6.2 Removing the Unlock Rod Loosen the M2.5×8 screw on the unlock rod. Remove the unlock rod. Remove the unlocking button and spring. 8.6.3 Removing the Infrared Backboard Loosen the connection cable on the infrared backboard. Loosen the M3×8 screw on the infrared backboard. Remove the infrared backboard.

  • Page 115: Removing The Contact Screws

    Loosen the M3 self-locking nuts from the contact screws, and then remove the contact screws, contact springs and spring plates. 8.7 Removing N1 Transport Dock 8.7.1 Removing the Transition Board Loosen and remove the four M3×5 countersunk head screws from the bottom of bottom plate.

  • Page 116: Removing The Power Adapter

    Remove the bottom plate. 8.7.2 Removing the Power Adapter Remove the power cable from the power adapter. Loosen the plug on the power adapter. Remove the power adapter. NOTE Before reassembling the adapter, use a ruler to measure the position or refer to the position of the original ...
  • Page 117 66±1 mm NOTE When placing the cable into the Transport Dock, align the left edge of the foam with the position shown  in the figure below. 8-37...
  • Page 118 FOR YOUR NOTES 8-38...

  • Page 119: Parts

    "Part Number" columns of all parts lists are used only to assist the maintenance personnel in searching for the corresponding FRU part numbers. Please provide the FRU parts numbers if you want to purchase the spare parts. The figure below shows the hardware architecture of the N1 main unit: In te rfa ce b o a rd...

  • Page 120: Main Unit (Without Co )

    6660 Power Button PCBA 115-051287-00 Main board assembly FRU(CE) 051-002742-00 6660 Infrared backboard PCBA 115-050780-00 N1 Rear panel assembly（FRU） 115-066546-00 N1 Parameter Plate(MS-NO IBP-NO MP1) 115-056971-00 N1 Parameter Plate(MR Spo2-IBP-MP1) 115-056969-00 N1 Parameter Plate(NC Spo2-IBP-MP1) 115-066548-00 N1 Parameter Plate(MS-NO IBP-NO MP1) 115-056972-00...
  • Page 121 Order Number Part Description Remarks Not for CO2 043-007704-00 N1 main frame configuration 043-007866-00 battery door （rubber） Battery Not for CO2 082-002707-00 Valve 2-2ways NO DC12V Wire length 145mm configuration 051-004798-00 M51C5L-SE,MR/NC-SPO2,NO IBP,NO AO(N1) 051-004799-00 M51C5L-FE,3-SPO2,IBP,AO(N1) 051-004800-00 M51C12L-FE,3-SPO2,IBP,AO(N1) 115-059415-00 Parameter PCBA (Ext_Arr 12L_ST glasgow)

  • Page 122: Main Unit (With Co )

    Main board assembly FRU(CE) 009-003698-00 Cable for AC input receptable 051-002742-00 6660 Infrared backboard PCBA 115-050780-00 N1 Rear panel assembly（FRU） 115-066546-00 N1 Parameter Plate(MS-NO IBP-NO MP1) 115-056971-00 N1 Parameter Plate(MR Spo2-IBP-MP1) 115-056969-00 N1 Parameter Plate(NC Spo2-IBP-MP1) 115-066548-00 N1 Parameter Plate(MS-NO IBP-NO MP1) 115-056972-00...

  • Page 123: N1/T1 Handle

    Order Number Part Description Remarks 082-002751-00 Valve 2-2ways NO DC12V Wire length 50mm CO2 configuration 051-004798-00 M51C5L-SE,MR/NC-SPO2,NO IBP,NO AO(N1) 051-004799-00 M51C5L-FE,3-SPO2,IBP,AO(N1) 051-004800-00 M51C12L-FE,3-SPO2,IBP,AO(N1) 115-059415-00 Parameter PCBA (Ext_Arr 12L_ST glasgow) 051-002353-00 M51C-9008V3.0 SPO2 PCBA 101-000469-00 Nellcor SPO2 PCBA 101-000468-00 Masimo SPO2 PCBA (MS-2040)

  • Page 124: N1/T1 Docking Station

    9.5 N1/T1 Docking Station 9.5.1 Maun Unit 9.5.1.1 Exploded View 9.5.1.2 Parts List Order Number Part Description Remarks 115-050764-00 DOCK Top Shell Module(ESM)(FRU) Compatible with 115-021128-00 051-001368-00 T1 DOCK connector Board PCBA 115-018066-00 right shell module of DOCK 043-003180-00 Dock Bottom Housing 9.5.2 Dock Top Housing Assembly...

  • Page 125: Dock Connector Assembly

    9.5.2.2 Parts List Order Number Part Description Remarks 043-003181-00 Rack Latch 009-003299-00 CABLE，LED，INDICATOR 9.5.3 Dock Connector Assembly 9.5.3.1 Exploded View 9.5.3.2 Parts List Order Number Part Description Remarks 009-003698-00 Cable for AC input receptable 022-000137-00 POWER SUPPLY BOARD 12V 40W for DOCK 051-001369-00 T1 Dock interface board PCBA 051-001509-00...

  • Page 126: Other Maintenance And Repair Parts

    6660 mainboard to Key board wire cable 009-008383-00 DCin wire for N1 cable 009-007326-00 6660 mainboard multifunction wire cable 115-049131-00 IBP Upgrade Kit(Mindray SPO2) Upgrade package 115-049132-00 IBP Upgrade Kit (nellcor spo2) Upgrade package 115-049130-00 5G WIFI upgrade package (N1) Upgrade package...

  • Page 127: Terminology

    Dock: secures and extends T1/N1 accessories and supplies power to them. Its model is Dock. The online T1 Dock is used. Modular Rack: used to carry T1/N1 accessories. Its model is Rack. A one-slot module can be inserted in it. The online T1 Handle is used.
  • Page 128 FOR YOUR NOTES 10-2...
  • Page 130 PN:046-011464-00 (6.0)

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