Central Monitor Model CNS-9701 Service Manual Rev C

Model:

CNS-9701

Manual code no.: 0634-001842C

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CONTENTS

Contents GENERAL HANDLING PRECAUTIONS ... i WARRANTY POLICY ... ii EMC RELATED CAUTION ... iii Conventions Used in this Manual and Instrument ... v Warnings, Cautions and Notes ... v Explanations of the Symbols in this Manual and Instrument... v

Section 1

General ... 1C.1 Introduction ... 1.1 General Information on Servicing ... 1.2 Service Policy, Service Parts and Patient Safety Checks ... 1.4 Service Policy ... 1.4 Service Parts ... 1.4 Maintenance Equipments and Tools ... 1.4 Important Safety Information ... 1.5 General ... 1.5 Installation ... 1.6 UPS ... 1.6 Network ... 1.7 Turning the Power On/Off ... 1.8 Discharge and Receiving Channel Change ... 1.8 Temporary Discharge ... 1.9 Patient Transfer ... 1.9 Alarm ... 1.9 ECG Monitoring ... 1.10 NIBP Measurement ... 1.10 Maintenance ... 1.11 Specification ... 1.12 Display ... 1.12 Waveform Display Items ... 1.12 Alphanumeric Display Items ... 1.12 Sound ... 1.12 Alarm Function ... 1.12 Trend ... 1.13 Waveform Sensitivity ... 1.13 Overview ... 1.13 Remote Setting ... 1.13 Full Disclosure ... 1.13 File Saving ... 1.13 2-ch recorder, WS-971R (option) ... 1.14 Laser Printer (local purchase) ... 1.14 Power Requirements ... 1.14 Environment ... 1.15 Electromagnetic Compatibility ... 1.15

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C.1

CONTENTS Safety ... 1.15 Dimensions and Weight ... 1.15 Panel Descriptions... 1.16 Central Monitor Main Unit MU-971RA/RJ/RK ... 1.16 Front Panel ... 1.16 Rear Panel ... 1.17 LCD Unit VL-971R/RK ... 1.18 Front ... 1.18 Rear ... 1.18 Recorder Unit WS-971R ... 1.19 Composition ... 1.20 Options ... 1.20 Connection Diagram ... 1.21

Section 2

Troubleshooting ... 2C.1 General ... 2.1 System ... 2.3 Network ... 2.4 Measurement Value ... 2.5 Alarm ... 2.5 Admitting/Discharging ... 2.6 All Beds Screen/Individual Bed Screen ... 2.7 Trend Window ... 2.8 Tabular Trend Window ... 2.8 Hemodynamics List Window ... 2.8 Arrhythmia Recall Window ... 2.9 ST Recall Window ... 2.9 Full Disclosure Window ... 2.10 ECG 12 Lead Analysis Window ... 2.10 Report Window ... 2.11 Recording ... 2.11 Overview Bed Screen ... 2.12 Parameter Setup ... 2.12 Power Problem ... 2.13 Display Problem ... 2.14 Touch Screen Problem ... 2.16 Sound Problem ... 2.16 Keyboard Problem ... 2.17 Mouse Problem ... 2.17 Hard Disk Problem ... 2.17 CD-ROM Drive or Floppy Disk Drive Problem ... 2.18 2-channel Recorder Unit Problem ... 2.18 Error Messages ... 2.19 Messages From Bedside Monitors/Multiple Patient Receiver ... 2.19 Messages about Measurement Conditions of Each Parameter ... 2.19 Other ... 2.24 Messages From Central Monitor ... 2.25 WS-971R Recorder Unit ... 2.25

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Service Manual CNS-9701

CONTENTS Laser Printer ... 2.25 Other ... 2.25 Hard Disk Replacement Flow ... 2.26 How to Recover the BIOS Initial Settings ... 2.27 BIOS Default Setting (Vorax5000) ... 2.28 BIOS Default Setting (Vorax5001) ... 2.30

Section 3

Board/Unit Description ... 3C.1 Power Supply Unit (by NIPRON) ... 3.1 Motherboard (by A-OPEN) ... 3.1 CPU (1 GHz Pentium 3 or 2.4 GHz Pentium 4) Box ... 3.1 256 MB Memory DIMM S-DRAM or DDR266 ... 3.2 40 GB Hard Disk (by IBM) ... 3.2 CD-ROM Drive (by SAMSUNG) ... 3.2 Graphic Board RADEON 32 or RADEON 7000 (by ATI) ... 3.2 PC Chassis IW-V500 or IW-V500G ... 3.3 Fan for Chassis ... 3.3 Mouse ... 3.3 RS232C Interface Board CYBER SERIAL ... 3.3

Section 4

Disassembly and Assembly ... 4C.1 Before You Begin ... 4.1 Warnings and Caution ... 4.1 Required Tools ... 4.1 Disassembling the Main Unit ... 4.2 Replacing the Motherboard ... 4.2 Replacing the Lithium Battery on the Motherboard ... 4.10 Replacing the CPU ... 4.10 Replacing the Internal Memory ... 4.10 Replacing the Hard Disk ... 4.11 Replacing the Graphic Board ... 4.11 Replacing the Fans ... 4.11 Replacing the Floppy Disk Drive ... 4.12 Replacing the Power Supply Unit ... 4.12 Replacing the CD Drive ... 4.12 Disassembling the Optional VL-971R Display Unit ... 4.13 Replacing the LCD Assembly ... 4.13 Removing the Display Unit Chassis ... 4.15 Replacing the Touch Screen ... 4.19 Disassembling the Optional WS-971R Recorder Unit ... 4.20 Removing the Recorder Sub Assy ... 4.20 Removing the AC Inlet Socket ... 4.21 Removing the RS232C Interface Board ... 4.22 Removing the Power Supply Unit ... 4.22 Removing the Front Panel ... 4.22 Replacing the LED ... 4.23 Replacing the Platen Roller/Bushings/Gear ... 4.24

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C.3

CONTENTS Cleaning the Thermal Array Head/Paper Sensor ... 4.25 Operation Check after Assembling the Recorder Unit ... 4.25

Section 5

Maintenance ... 5C.1 To Be Replaced Periodically ... 5.1 Maintenance Check Items and Schedule ... 5.1 External and Connection ... 5.2 Display ... 5.2 Sound ... 5.2 Operation ... 5.3 Data Storage ... 5.3 Network Communication ... 5.4 Recorder ... 5.4 Laser Printer ... 5.4 UPS ... 5.5 Safety ... 5.5

Section 6

Adjustment... 6C.1 Adjusting the VL-971R Display Unit ... 6.1 Automatic Adjustment ... 6.1 Manual Adjustment ... 6.2

Section 7

Replaceable Parts List... 7C.1 MU-971RA/RJ/RK Main Unit (Vorax5000) ... 7.2 MU-971RA/RJ/RK Main Unit (Vorax5001) ... 7.4 VL-971R/RK Optional Display Unit ... 7.6 WS-971R Optional Recorder Unit ... 7.8

Section 8

Network Settings ... 8C.1 Network Setting Flowchart ... 8.2 Setting the IP Address on Each Instrument ... 8.3 Manually Setting the IP Address of the Central Monitor ... 8.3 Installing the Laser Printer (Network Printer) ... 8.6 Connecting the Network System ... 8.12 Start the System ... 8.12 Checking the Network Connection on the Central Monitor ... 8.13 Assigning the Group Name and Bed Name ... 8.14 Assigning a Bed Name/CNS Name ... 8.15 Assigning a CNS Name to a Central Monitor ... 8.15 Registering Group Names in the Central Monitor ... 8.15 Assigning a Group Name ... 8.16 Checking the Bed Name and Group Name Setting ... 8.16 Selecting the Monitored Beds ... 8.17 Changing Settings of System Setup, Patient Setting and Setup ... 8.19 Adding an Instrument to the Network During System Operation ... 8.20

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Service Manual CNS-9701

CONTENTS

Section 9

Connector Pin Assignment ... 9C.1 Sockets at the Rear of the Main Unit ... 9.1 SOUND Socket ... 9.1 TOUCH1/TOUCH2 Socket ... 9.1 VIDEO1/VIDEO2 Socket ... 9.2 RECORDER Socket ... 9.2 PROTECT KEY Socket ... 9.2

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CONTENTS

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Service Manual CNS-9701

GENERAL HANDLING PRECAUTIONS This device is intended for use only by qualified medical personnel. Use only Nihon Kohden approved products with this device. Use of non-approved products or in a non-approved manner may affect the performance specifications of the device. This includes, but is not limited to, batteries, recording paper, pens, extension cables, electrode leads, input boxes and AC power. Please read these precautions thoroughly before attempting to operate the instrument. 1. To safely and effectively use the instrument, its operation must be fully understood. 2. When installing or storing the instrument, take the following precautions: (1) Avoid moisture or contact with water, extreme atmospheric pressure, excessive humidity and temperatures, poorly ventilated areas, and dust, saline or sulphuric air. (2) Place the instrument on an even, level floor. Avoid vibration and mechanical shock, even during transport. (3) Avoid placing in an area where chemicals are stored or where there is danger of gas leakage. (4) The power line source to be applied to the instrument must correspond in frequency and voltage to product specifications, and have sufficient current capacity. (5) Choose a room where a proper grounding facility is available. 3. Before Operation (1) Check that the instrument is in perfect operating order. (2) Check that the instrument is grounded properly. (3) Check that all cords are connected properly. (4) Pay extra attention when the instrument is in combination with other instruments to avoid misdiagnosis or other problems. (5) All circuitry used for direct patient connection must be doubly checked. (6) Check that battery level is acceptable and battery condition is good when using battery-operated models. 4. During Operation (1) Both the instrument and the patient must receive continual, careful attention. (2) Turn power off or remove electrodes and/or transducers when necessary to assure the patient’s safety. (3) Avoid direct contact between the instrument housing and the patient. 5. To Shutdown After Use (1) Turn power off with all controls returned to their original positions. (2) Remove the cords gently; do not use force to remove them. (3) Clean the instrument together with all accessories for their next use. 6. The instrument must receive expert, professional attention for maintenance and repairs. When the instrument is not functioning properly, it should be clearly marked to avoid operation while it is out of order. 7. The instrument must not be altered or modified in any way. 8. Maintenance and Inspection: (1) The instrument and parts must undergo regular maintenance inspection at least every 6 months. (2) If stored for extended periods without being used, make sure prior to operation that the instrument is in perfect operating condition.

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i

(3) Technical information such as parts list, descriptions, calibration instructions or other information is available for qualified user technical personnel upon request from your Nihon Kohden distributor. 9. When the instrument is used with an electrosurgical instrument, pay careful attention to the application and/or location of electrodes and/or transducers to avoid possible burn to the patient. 10. When the instrument is used with a defibrillator, make sure that the instrument is protected against defibrillator discharge. If not, remove patient cables and/or transducers from the instrument to avoid possible damage.

WARRANTY POLICY Nihon Kohden Corporation (NKC) shall warrant its products against all defects in materials and workmanship for one year from the date of delivery. However, consumable materials such as recording paper, ink, stylus and battery are excluded from the warranty. NKC or its authorized agents will repair or replace any products which prove to be defective during the warranty period, provided these products are used as prescribed by the operating instructions given in the operator’s and service manuals. No other party is authorized to make any warranty or assume liability for NKC’s products. NKC will not recognize any other warranty, either implied or in writing. In addition, service, technical modification or any other product change performed by someone other than NKC or its authorized agents without prior consent of NKC may be cause for voiding this warranty. Defective products or parts must be returned to NKC or its authorized agents, along with an explanation of the failure. Shipping costs must be pre-paid. This warranty does not apply to products that have been modified, disassembled, reinstalled or repaired without Nihon Kohden approval or which have been subjected to neglect or accident, damage due to accident, fire, lightning, vandalism, water or other casualty, improper installation or application, or on which the original identification marks have been removed. In the USA and Canada other warranty policies may apply.

CAUTION United States law restricts this device to sale by or on the order of a physician.

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Service Manual CNS-9701

EMC RELATED CAUTION This equipment and/or system complies with the International Standard IEC 60601-1-2 for electromagnetic compatibility for medical electrical equipment and/or system. However, an electromagnetic environment that exceeds the limits or levels stipulated in the IEC 60601-1-2, can cause harmful interference to the equipment and/or system or cause the equipment and/or system to fail to perform its intended function or degrade its intended performance. Therefore, during the operation of the equipment and/or system, if there is any undesired deviation from its intended operational performance, you must avoid, identify and resolve the adverse electromagnetic effect before continuing to use the equipment and/or system. The following describes some common interference sources and remedial actions: 1. Strong electromagnetic interference from a nearby emitter source such as an authorized radio station or cellular phone: Install the equipment and/or system at another location if it is interfered with by an emitter source such as an authorized radio station. Keep the emitter source such as cellular phone away from the equipment and/or system. 2. Radio-frequency interference from other equipment through the AC power supply of the equipment and/or system: Identify the cause of this interference and if possible remove this interference source. If this is not possible, use a different power supply. 3. Effect of direct or indirect electrostatic discharge: Make sure all users and patients in contact with the equipment and/or system are free from direct or indirect electrostatic energy before using it. 4. Electromagnetic interference with any radio wave receiver such as radio or television: If the equipment and/or system interferes with any radio wave receiver, locate the equipment and/or system as far as possible from the radio wave receiver. If the above suggested remedial actions do not solve the problem, consult your Nihon Kohden Corporation subsidiary or distributor for additional suggestions.

The CE mark is a protected conformity mark of the European Community. The products herewith comply with the requirements of the Medical Device Directive 93/42/EEC. The CE mark only applies to the CNS-9701K series central monitors. This equipment complies with EUROPEAN STANDARD EN-60601-1-2 (1993) which requires EN-55011, class A. Class A EQUIPMENT is allowed in domestic establishments when used under the jurisdiction of a health care professional.

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In IEC 60601-1-2 Medical Electronic Equipment, Part 1: General Requirements for Safety, 2. Collateral Standard: Electromagnetic compatibility-Requirements and test. Section 36. 202. 2 Radiated radiofrequency electromagnetic fields, PATIENT COUPLED EQUIPMENT and/or SYSTEMS applicable IMMUNITY test methods are under consideration at SC62A/WG13. The 3 V/m IMMUNITY level may be inappropriate especially when measuring SpO2 because physiological signals can be much smaller than those induced by a 3 V/m electromagnetic field. When measuring SpO2, various interference may produce false waveforms which look like pulse waveforms. SpO2 value and pulse rate may be measured from these false waveforms, causing the alarm to function improperly. When installing the monitor, avoid locations where the monitor may receive strong electromagnetic interference such as radio or TV stations, cellular phone or mobile two-way radios.

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Service Manual CNS-9701

Conventions Used in this Manual and Instrument Warnings, Cautions and Notes Warnings, cautions and notes are used in this manual to alert or signal the reader to specific information.

WARNING A warning alerts the user to possible injury or death associated with the use or misuse of the instrument.

CAUTION A caution alerts the user to possible injury or problems with the instrument associated with its use or misuse such as instrument malfunction, instrument failure, damage to the instrument, or damage to other property.

NOTE A note provides specific information, in the form of recommendations, prerequirements, alternative methods or supplemental information.

Explanations of the Symbols in this Manual and Instrument The following symbols found in this manual/instrument bear the respective descriptions as given. On MU-971RA/RJ/RK central monitor main unit

Symbol

Description

Symbol

Description

Power ON

Hard disk lamp

Power OFF

Reset

Attention, consult operator’s manual

Mouse socket

System start/shutdown

Keyboard socket

Power lamp (Power ON)

(Only for CNS-9701K) The CE mark is a protected conformity mark of the European Community. The products herewith comply with the requirements of the Medical Device Directive 93/42/EEC.

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v

On Screen

Symbol

Description

Symbol

Description

Overview

Adjust setting/Scroll data

Help

Alarm

Print Stop

Speaker

Delayed recording start

Electrocardiogram

Print mark/Print

Alarm suspend/silence with remaining minutes at the central monitor

Menu (System Setup)

Alarm suspend at the transmitter

Previous

All alarm off, vital sign alarm off

All Beds

Alarm recording off

Deletion mark

QRS sync mark

Close a window

On VL-971R/RK LCD unit

Symbol

Description

Symbol

Description Attention, consult operator’s manual

Power on

Power off

On WS-971R Recorder Unit Symbol

Description

Symbol

Description

Power on

Fuse

Power off

Type B applied part

For the symbol marks on the locally purchaced LCD display, laser printer and UPS, refer to each instruction manual.

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Service Manual CNS-9701

Section 1 General

Introduction ... 1.1 General Information on Servicing ... 1.2 Service Policy, Service Parts and Patient Safety Checks ... 1.4 Service Policy ... 1.4 Service Parts ... 1.4 Maintenance Equipments and Tools ... 1.4 Important Safety Information ... 1.5 General ... 1.5 Installation ... 1.6 UPS ... 1.6 Network ... 1.7 Turning the Power On/Off ... 1.8 Discharge and Receiving Channel Change ... 1.8 Temporary Discharge ... 1.9 Patient Transfer ... 1.9 Alarm ... 1.9 ECG Monitoring ... 1.10 NIBP Measurement ... 1.10 Maintenance ... 1.11 Specification ... 1.12 Display ... 1.12 Waveform Display Items ... 1.12 Alphanumeric Display Items ... 1.12 Sound ... 1.12 Alarm Function ... 1.12 Trend ... 1.13 Waveform Sensitivity ... 1.13 Overview ... 1.13 Remote Setting ... 1.13 Full Disclosure ... 1.13 File Saving ... 1.13 2-ch recorder, WS-971R (option) ... 1.14 Laser Printer (local purchase) ... 1.14 Power Requirements ... 1.14 Service Manual CNS-9701

1C.1

Environment ... 1.15 Electromagnetic Compatibility ... 1.15 Safety ... 1.15 Dimensions and Weight ... 1.15 Panel Descriptions... 1.16 Central Monitor Main Unit MU-971RA/RJ/RK ... 1.16 Front Panel ... 1.16 Rear Panel ... 1.17 LCD Unit VL-971R/RK ... 1.18 Front ... 1.18 Rear ... 1.18 Recorder Unit WS-971R ... 1.19 Composition ... 1.20 Options ... 1.20 Connection Diagram ... 1.21

1C.2

Service Manual CNS-9701

1. GENERAL

Introduction This service manual provides useful information to qualified service personnel to understand, troubleshoot, service, maintain and repair the CNS-9701A/J/K Central Monitor (referred to as “monitor” in this service manual). All replaceable parts or units of this monitor and its optional units are clearly listed to help you locate the parts quickly. The “Maintenance” section in this service manual only describes the maintenance that should be performed by qualified service personnel. The Maintenance section in the operator’s manual describes the maintenance that can be performed by the user. The information in the operator’s manual is primarily for the user. However, it is important for service personnel to thoroughly read the operator’s manual and service manual before starting to troubleshoot, service, maintain or repair this monitor. This is because service personnel need to understand the operation of the monitor in order to effectively use the information in the service manual.

Service Manual CNS-9701

1.1

1. GENERAL

General Information on Servicing Note the following information when servicing the monitor.

WARNING To avoid the possibility of injury to yourself or damage to the monitor, do not install or remove any component while the power is on. When disassembling, make sure that the monitor is turned off and the power cord is disconnected from the monitor and AC outlet. There is a high voltage circuit on the power unit.

CAUTIONS Safety • There is the possibility that the outside surface of the monitor, such as the operation keys, could be contaminated by contagious germs so disinfect and clean the monitor before servicing it. When servicing the monitor, wear rubber gloves to protect yourself from infection. • There is the possibility that when the lithium battery or LCD unit is broken, a solvent could flow out or a toxic substance inside it could come out. If the solvent or toxic substance contacts the eyes or skin, wash immediately and thoroughly with water and see your physician. Never rub your eyes, otherwise you may lose your eyesight.

• To avoid accidental electrostatic discharge which could damage the components of the monitor, use a grounded wrist strap when installing or removing any component of the monitor. • Use a pair of clean cotton gloves when replacing the LCD unit. If it is damaged, your hand may get injured. Liquid ingress The monitor is not waterproof, so do not install the monitor where water or liquid can get into or fall on the monitor. If liquid accidentally gets into the monitor or the monitor accidentally falls into liquid, disassemble the monitor, clean it with clean water and dry it completely. After reassembling, do the patient safety checks and function/performance checks to verify that there is nothing wrong. If there is something wrong with the monitor, contact your Nihon Kohden representative for repair.

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Service Manual CNS-9701

1. GENERAL Environmental Safeguards Depending on the local laws in your community, it may be illegal to dispose of the lithium battery in the regular waste collection. Check with your local officials for proper disposal procedures. Disinfection and cleaning To disinfect the outside surface of the monitor, wipe it with a nonabrasive cloth moistened with any of the disinfectants listed below. Do not use any other disinfectants or ultraviolet rays to disinfect the monitor. - Chlorohexidine gluconate solution: 0.5% - Benzethonium chloride solution: 0.2% - Glutaraldehyde solution: 2.0% - Benzalkonium chloride: 0.2% - Hydrochloric alkyl diaminoethylglycine: 0.5% Transport • Use the specified shipment container and packing material to transport the monitor. If necessary, double pack the monitor. Also, put the monitor into the shipment container after packing so that the buffer material does not get inside the monitor. • When transporting a board or unit of the monitor, be sure to put it in a conductive bag. Never use an aluminum bag to transport a board or unit. Also, never use a styrene foam or plastic bag which generates static electricity to wrap the board or unit of the monitor. Handling the monitor • Because the outside surface of the monitor is made of resin, the outside surface of the monitor is easily damaged. So when handling the monitor, remove clutter from around the monitor and be careful to not damage the monitor or get it dirty. • Because most of the boards in the monitor are multilayer boards with surface mount electrical devices (SMD), a special tool is required to remove and solder the electrical devices on it. To avoid damaging other electrical components, do not remove and solder SMD components yourself. Measuring and Test Equipment Maintain the accuracy of the measuring and test equipment by checking and calibrating it according to the check and calibration procedures. Lithium Battery • Before disposing of the battery, check with your local solid waste officials for details in your area for recycling options or proper disposal. The battery is recyclable. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream.

Service Manual CNS-9701

1.3

1. GENERAL

Service Policy, Service Parts and Patient Safety Checks Service Policy

Our technical service policy for this monitor is to replace the faulty unit, board or part or damaged mechanical part with a new one. Do not perform electrical device or component level repair of the multilayer board or unit. We do not support component level repair outside the factory for the following reasons: • Most of the boards are multilayer boards with surface mount electrical devices, so the mounting density of the board is too high. • A special tool or high degree of repair skill is required to repair the multilayer boards with surface mount electrical devices.

Only disassemble the monitor or replace a board or unit in an environment where the monitor is protected against static electricity. As background knowledge for repair, pay special attention to the following: • To reduce the repair time, consider the problem before starting repair. • To clarify the source of the troubles, use the information from the diagnostic check function of the monitor and the information described in the troubleshooting section.

Service Parts

Refer to “Replaceable Parts List” of this manual for the service parts for technical service that we provide.

NOTE When ordering parts or accessories from your Nihon Kohden representative, please quote the NK code number and part name which is listed in this service manual, and the name or model of the unit in which the required part is located. This will help us to promptly attend to your needs. Always use parts and accessories recommended or supplied by Nihon Kohden Corporation to assure maximum performance from your monitor.

Maintenance Equipments and Tools

1.4

Test equipment When repairing or calibrating the monitor, the following test equipment is required. • Digital voltmeter: standard type (An oscilloscope can be used instead of the digital voltmeter.)

Service Manual CNS-9701