TrioTMSer vi ceManual0070-01-0591.indd 1 10/28/08 3:17:30 PM0070-10-0591-01 Trio Service ManualTrio is a U.S. trademark of Mindray DS USA, Inc.Velcro is a registered trademark of Velcro Industries B.V.Navigator is a U.S. trademark of Mindray DS USA, Inc.Masimo SET is a U.S. registered trademark of Masimo Corp.Copyright Mindray DS USA, Inc., 2008. Printed in U.S.A. All rights reserved. Contents of this publication may not be reproduced in any form without permission of Mindray DS USA, Inc.Trio Service Manual 0070-10-0591-01 iTable of ContentsForeword....................................................................................................................................................... iiiWarnings, Precautions And Notes .................................................................................................................... iiiWarning........................................................................................................................................................ iiiTheory of Operation ......................................................................................................... 1 - 1Introduction.................................................................................................................................................... 1 - 1Hardware Overview ....................................................................................................................................... 1 - 3Power Supply Board (Lead Acid Battery) .................................................................................................... 1 - 3Power Supply Board (Lithium Ion Battery) .................................................................................................... 1 - 5CPU Board (Main Control Board) .............................................................................................................. 1 - 6Keypad Board......................................................................................................................................... 1 - 9Keypad Board......................................................................................................................................... 1 - 10Keypad Board......................................................................................................................................... 1 - 11TR60-C Recorder ..................................................................................................................................... 1 - 12Serial Interface Converter Board....................................................................................................................... 1 - 14Parameter Circuit Descriptions .......................................................................................................................... 1 - 15ECG...................................................................................................................................................... 1 - 15Respiration ............................................................................................................................................. 1 - 15NIBP ...................................................................................................................................................... 1 - 16SpO2..................................................................................................................................................... 1 - 16Temperature............................................................................................................................................ 1 - 17IBP (optional) .......................................................................................................................................... 1 - 17Calibration/Maintenance .................................................................................................. 2 - 1Calibration Introduction ................................................................................................................................... 2 - 1Warnings and Guidelines................................................................................................................................ 2 - 1Test Equipment and Special Tools Required........................................................................................................ 2 - 1Calibration and System Checks ........................................................................................................................ 2 - 2Device Appearance and Installation Checks................................................................................................ 2 - 2Maintenance Menu.................................................................................................................................. 2 - 2Safety Tests............................................................................................................................................. 2 - 11Testing Each Parameter.................................................................................................................................... 2 - 12ECG and RESP........................................................................................................................................ 2 - 12NIBP ...................................................................................................................................................... 2 - 12SpO2..................................................................................................................................................... 2 - 13TEMP ..................................................................................................................................................... 2 - 14IBP......................................................................................................................................................... 2 - 14Parts ................................................................................................................................ 3 - 1Exploded Views of the Trio Monitor................................................................................................................... 3 - 1Parts Listing.................................................................................................................................................... 3 - 12Repair Information ........................................................................................................... 4 - 1Introduction.................................................................................................................................................... 4 - 1Single Temp Cable Assembly ........................................................................................................................... 4 - 10ECG Cable Assembly...................................................................................................................................... 4 - 10Troubleshooting.............................................................................................................................................. 4 - 11Module-level Troubleshooting.................................................................................................................... 4 - 11Disassembly Instructions................................................................................................................................... 4 - 14Tools Needed ......................................................................................................................................... 4 - 14Removal of the Front Housing.................................................................................................................... 4 - 14Removal of Display.................................................................................................................................. 4 - 14Removal of Thermal Printhead Recorder...................................................................................................... 4 - 14Removal of PCB Chassis Assembly............................................................................................................. 4 - 15Removal of Display Mounting Plate............................................................................................................ 4 - 15Replacement of 3V Lithium Cell Battery....................................................................................................... 4 - 15Table of Contentsii 0070-10-0591-01 Trio Service ManualRemoval of Power Supply Assembly........................................................................................................... 4 - 15Removal of PCB Chassis Rear Panel Plate ................................................................................................... 4 - 15Removal of NIBP/IBP PCB Mounting Plate .................................................................................................. 4 - 16Removal of Handle .................................................................................................................................. 4 - 16ECG Cable ESIS and Non ESIS ........................................................................................................................ 4 - 17ECG Shielded Lead Wires ............................................................................................................................... 4 - 18Trio Wall Mounts and Rolling Stand.................................................................................................................. 4 - 20Appendix ......................................................................................................................... 5 - 1System Alarm Prompts ..................................................................................................................................... 5 - 1Trio Service Manual 0070-10-0591-01 iiiForeword IntroductionForewordThis service manual gives a detailed description of the Trio Portable Patient Monitor, including, circuit descriptions, test procedures and a spare part listing. This manual is intended as a guide for technically qualified personnel during repair, testing or calibration procedures.Warnings, Precautions And NotesPlease read and adhere to all warnings, precautions and notes listed here and in the appropriate areas throughout this manual.A WARNING is provided to alert the user to potential serious outcomes (death, injury, or serious adverse events) to the patient or the user.A CAUTION is provided to alert the user to use special care necessary for the safe and effective use of the device. They may include actions to be taken to avoid effects on patients or users that may not be potentially life threatening or result in serious injury, but about which the user should be aware. Cautions are also provided to alert the user to adverse effects on this device of use or misuse and the care necessary to avoid such effects.A NOTE is provided when additional general information is applicable.WarningWARNING: The NIBP pneumatic test (specified in the EN 1060-1 standard) is used to determine if there are air leaks in the NIBP airway. If the system displays the prompt that the NIBP airway has air leaks, please contact the manufacturer for repair.CAUTION: To ensure continued use of the Factory Defaults when the unit is powered off and on, save the Factory Defaults as the User Default Configuration after reassembly.Introduction Warningiv 0070-10-0591-01 Trio Service ManualThis page intentionally left blank.Trio Service Manual 0070-10-0591-01 1 - 11.0 Theory of Operation1.1 IntroductionThe Trio portable patient monitor uses a parameter module as the basis for acquiring patient data. The results are transmitted to the main control board to process and display the data and waveforms. CPU board commands and status messages of modules are transmitted via databus. The structure of the entire system is shown in the figure below.FIGURE 1-1 System Structure DiagramDisplay Recorder KeyboardMaincontrolboardPowerNetworkinterface(future)ECG/RESP/TEMP NIBP SpO2 IBPMedical StaffPatientIntroduction Theory of Operation1 - 2 0070-10-0591-01 Trio Service ManualAs shown in the above figure, the four parameter modules execute real-time monitoring of NIBP, SpO2, ECG/RESP/TEMP and IBP through the use of blood pressure cuffs and patient cables. The patient data is transmitted to the CPU board for display. When required, data may be printed out via the recorder. Trio Service Manual 0070-10-0591-01 1 - 3Theory of Operation Hardware Overview1.2 Hardware OverviewFIGURE 1-2 Connection Diagram1.2.1 Power Supply Board (Lead Acid Battery) P/N 0671-00-0235Trio power supply board specifications: AC input voltage:100~250 VAC AC input current: