Mediana YM6000 Service Manual Download Page 94

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88 System Processing Description

IBP

unit:

measures

Invasive

blood

pressure

waveform

data.

Figure

42.

IBP

Unit

Block

Diagram

Analog

control

unit:

analog

circuit

control,

PIC16C74B

–

selection

ECG

channels

and

filter,

size

adjustment,

verification

lead

off,

QRS,

heart

rate,

etc.

Isolation DC/DC

Photocoupler

DC +5V

Serial Communication

Isolation DC +/-5V

PIC16F74

ECG Filter Selection

ECG Gain Control

ECG Lead Off

ECG Signal Saturation

Pace Pulse Detection

Respiration Gain Control

Patient Isolation

Figure

43.

Analog

Control

Unit

Block

Diagram

External

Interface

TCP/IP

Network

connector

Serial

I/O

female

sub

‐

miniature

shell

connector

Summary of Contents for YM6000

Page 1: ...cturer Mediana Co Ltd Wonju Medical Industry Park 1650 1 Donghwa ri Munmak eup Wonju si Gangwon do Korea Tel 82 2 542 3375 82 33 742 5400 Fax 82 2 542 7447 82 33 742 5483 YM6000 Service Manual Revised...

Page 2: ...nties or merchantability and fitness for a particular purpose Mediana shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing perfo...

Page 3: ...35 Service Menu 35 Demo Mode 40 EtCO2 Calibration 40 Factory Default Settings 40 Firmware Download 45 Troubleshooting 47 General 47 How to Use This Section 47 Who Should Perform Repairs 47 Replacemen...

Page 4: ...se Disassembly Knob LCD window Encoder assembly and Connectors 70 Figure 23 Rear case disassembly EtCO2 module 72 Figure 24 Rear case disassembly Speaker 73 Figure 25 Rear case disassembly SMPS case S...

Page 5: ...e 64 Table 19 Part Descriptions Monitor 65 Table 20 Part Descriptions Side connector holder and Main board 66 Table 21 Part Descriptions CPU module SpO2 module and IBP board 67 Table 22 Part Descripti...

Page 6: ...iv Contents YM6000 Service Manual This page is intentionally left blank...

Page 7: ...or WARNING Chemicals from a broken LCD display panel are toxic when ingested Use caution when handling a monitor with a broken display panel WARNING The use of accessories transducers and cables other...

Page 8: ...TION If any problem with the monitor built in an optional printer check a printer s door is closed well Operating error may be caused if the cover is not closed correctly CAUTION If internal battery c...

Page 9: ...functional arterial oxygen saturation invasive blood pressure respiration capnography EtCO2 and InCO2 and temperature for adult pediatric and neonate patients in all areas of a hospital and hospital t...

Page 10: ...tery charging status indicator B 6 AC indicator 7 Power button 8 Print button 9 Alarm silence suspension button 10 Trend button 11 NIBP start stop button 12 Return button 13 Trim knob 14 ECG connector...

Page 11: ...5 YM6000 Service Manual Rear Panel Components 1 Air ventilation 5 Battery cover 2 Equipotential terminal 6 Thermal Printer option 3 Ac power connector 7 Handle 4 Speaker Figure 2 Rear Panel Components...

Page 12: ...6 Introduction YM6000 Service Manual Right Panel Components 1 LAN connector 2 RS 232 interface connector Figure 3 Right Panel Components and Symbols...

Page 13: ...Introduction 7 YM6000 Service Manual Left Panel Components Figure 4 Left Panel Components and Symbols 1 Thermal printer option 2 Battery cover...

Page 14: ...8 Introduction YM6000 Service Manual This page is intentionally left blank...

Page 15: ...ersonnel for checking Periodic Safety and Functional Checks The monitor requires no routine service or calibration other than cleaning and battery maintenance The following performance verification te...

Page 16: ...eplace or remove the battery refer to Disassembly Guide section Recharging the battery is strongly recommended when the battery has not been recharged for 2 or more months CAUTION If the battery shows...

Page 17: ...cuff hose NIBP cuff Mediana cuff Durable NIBP rigid PVC vessel 9cm diameter SpO2 extension cable Nellcor DOC 10 SpO2 sensor durable Nellcor DS 100A Temperature probes YSI 400 series SpO2 simulator Nel...

Page 18: ...trim knob twice to exit Pass Fail Results When the color of the test screen changes in the order from Red Green Blue White to Black the LCD display is in a normal state Alarm Audible Test This tests t...

Page 19: ...will change automatically There are three pitches High Med and Low 3 Press Cancel to finish the test 4 Rotate the trim knob to select Key Beep The key beep sounds intermittently as the level goes up...

Page 20: ...n Backup RAM Clear is set to Yes all settings of the monitor including the service settings return to the factory defaults from the next cycle Figure 7 Backup RAM Clear Note Set the monitor to appropr...

Page 21: ...indicator is lit 3 Charge the battery fully until Battery charging status indicator A and B is no more flashing It takes for at least 12 hours 4 To check for a full charge perform the procedure in pa...

Page 22: ...the check sum completed the bar is filled and then Mediana logo appears for a few seconds with version numbers of the software and the copyright in lower left corner of display c The monitor emits th...

Page 23: ...ible alarm is temporarily silenced 7 Verify the following a An audible alarm remains silenced b Alarm silence icon appears in SpO2 numerical area on display c SpO2 display continues flashing d Audible...

Page 24: ...ication that the microprocessor is in proper control of LED intensity 10 Press Power button to turn off the monitor Restoring Power On Default Settings The following test procedures will verify that a...

Page 25: ...n default setting via the service menu see Service Menu and Factory Defaults section Turn off the monitor 7 Press Power button to turn on the monitor 8 Verify alarm limits are set to the current chang...

Page 26: ...d waveforms are printed out 10 Test 6 Auto List Record a Set Auto List Record to On via Setup menu b Set Save Time Interval to 0 5 minutes via Tabular trend menu c Verify that the monitor automaticall...

Page 27: ...r to complete POST Note The monitor should indicate a SpO2 alarm of 75 5 Verify an output voltage at pins 5 and 1 between 5 to 12 DC 6 Press Alarm silence suspension button With no active audible alar...

Page 28: ...40 3 bpm b Verify that audible alarm sounds and that HR Upper limit violated message displays c Verify that the HR PR numerical area flashes and that the heart rate is above default high alarm limit m...

Page 29: ...as injury could result These tests verify the functionality of the monitor s pneumatic system The monitor must be placed in Service menu For a detailed explanation to access the service menu refer to...

Page 30: ...essure on the simulator for 250 150 50 and 0 mmHg 6 Press Start Pump button on simulator The simulator will begin to pressurize Allow 15 20 seconds for pressure to stabilize 7 Compare the pressure of...

Page 31: ...Rotate the trim knob to select NIBP Test in the service menu and then press the trim knob 4 Rotate the trim knob to select Air Leakage Test and then press the trim knob 5 The result will be displayed...

Page 32: ...The monitor will display 90 SpO2 60 bpm no alarm 7 Test 2 Pulse rate bpm a Press PULSE RATE selection button on the SpO2 simulator The PULSE RATE 200 LED on the SpO2 simulator will light b The monitor...

Page 33: ...erify that the monitor displays the respiration rate of 20 3 breaths per minute Note The accuracy of Respiration rate measurements is 3 breaths per minute In the procedure below add the tolerance of t...

Page 34: ...eted the POST 6 The monitor will display IBP waveform s baseline on the screen 7 Select IBP waveform menu or IBP menu then set Pressure Zero Setting to Yes to perform the zero calibration 8 If zero ca...

Page 35: ...g 6 Test 4 Occlusion a Block the sample input The module should enter the occlusion state Verify that it does correctly enter this occlusion state b Unblock the input Verify that after the modules occ...

Page 36: ...a pressure between 5 and 7 psi f Introduce a steady stream of CO2 gas Set and monitor the flow rate to approximately 1 liter minute 10 To verify flow place the bleed line of the calibration sample lin...

Page 37: ...lectrical safety analyzer as recommended by the analyzer operating instructions 2 Perform the test as recommended by analyzer operating instructions Table 3 Earth Leakage Current Values Test Condition...

Page 38: ...r and the appropriate input connector on the analyzer 4 Turn on the monitor 5 Perform the patient leakage current test as recommended by the analyzer operating instructions 6 Repeat the patient leakag...

Page 39: ...measured from any individual patient connection to earth Note Keep the patient test cable length as short as possible during the leakage test Note This test requires the same test cables for each pat...

Page 40: ...analyzer as recommended by the electrical analyzer s operating instructions 3 Connect the patient test lead combination in Table 7 to the appropriate input connector on the electrical analyzer 4 Turn...

Page 41: ...the settings in effect each time the monitor is powered on Once the Service menu is entered physiological monitoring is terminated The screen layouts do not display any information associated with no...

Page 42: ...ce Menu 8 The Service Menu will now be present The available Service Menu items are explained in Figure 6 and Table 9 Make changes to these menu items as desired by rotating and pressing the trim knob...

Page 43: ...Detail System Test LCD Test Alarm Audible Test Tone Audible Test Backup RAM Clear NIBP Test Pressure Sensor Accuracy Test Air Leakage Test Inflation Speed Test Deflations Speed Test Demo Mode On Off...

Page 44: ...1 1 8 Table 10 Audible Alarm Characteristics Tone Pitch Beep Rate Alarm Category GN924 IEC60601 1 8 GN924 IEC60601 1 8 High priority 976 Hz 976 Hz 7 beeps in 2 sec 10 beeps in 15 sec Medium priority 6...

Page 45: ...on level of the system software The revision level is also shown on the LCD as part of the Copyright screen Module Version This menu displays information for each module or board version Print Value o...

Page 46: ...e refer to Performance Verification section Factory Default Settings Factory default settings are divided into three groups adult pediatric and neonatal as described in Table 13 The patient mode is pr...

Page 47: ...mHg 9 3 kPa 40 mmHg 5 3 kPa IBP 1 DIA High Alarm Limits adult pediatric neonatal 45 to 300 mmHg 6 to 40 kPa 5 mmHg 0 7kPa steps 90 mmHg 12 0 kPa 70 mmHg 9 3 kPa 60 mmHg 8 0 kPa IBP 1 DIA Low Alarm Lim...

Page 48: ...m Limits 4 to 150 BPM 1 BPM steps 30 BPM 30 BPM 100 BPM RESP Low Alarm Limits 3 to 149 BPM 1 BPM steps 8 BPM 8 BPM 30 BPM Capnography CAPNO Sweep Speed 6 25 12 5 25 0 mm s 12 5 mm s 12 5 mm s 12 5 mm...

Page 49: ...e Interval Off 0 5 1 2 2 5 5 10 15 20 30 60 120 min 1 min Graphical Display On Off On Off for each parameter On Save Setting on Power Off Custom Back up Default Back up Audible Alarm Silence Period 30...

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Page 51: ...download Table 14 Required Equipments for Firmware download Equipment Description Firmware Downloading Cable LAN Cable Firmware Downloading Software YM6000 Field Utility Personal Computer PC With TCP...

Page 52: ...the screen as shown Figure 14 Refer to Table 15 Figure 14 Firmware downloading display Table 15 Completion codes Code Description S 1 3 Boot download completed S 2 3 Main download completed Note If a...

Page 53: ...orted The replacement level supported for this product is to the printed circuit board PCB assembly and major subassembly level Once you isolate a suspected PCB assembly follow the procedures in Disas...

Page 54: ...appropriate AC outlet of voltage and frequency 1 2 Replace the power supply assembly 1 3 Ensure the key wire is connected to the key board assembly and the main board If the connection is good replac...

Page 55: ...battery charging is completed then the red LED is lit continuously Replace the power supply assembly if the LEDs are not lit Display The followings are symptoms of problems relating to non functionin...

Page 56: ...ists replace the main board 2 Audible alarm does not sound 2 1 Check alarm silence status 2 2 Check alarm volume setting in Setup menu 2 3 Ensure the speaker is connected to the power supply assembly...

Page 57: ...knob presses 3 1 Ensure the encoder wire is plugged into the main board If connection is good change encoder assembly 3 2 If problem persists replace the main board NIBP The following are symptoms of...

Page 58: ...e action requires replacement of a PCB or module refer to Disassembly Guide 1 The measurement values are too low 1 1 Check the temperature probe is properly located at patient s body 2 TEMP 1 or 2 Int...

Page 59: ...ro setting at IBP menu 2 5 If the problem persists replace the IBP accessories 2 6 If the problem persists replace the IBP board EtCO2 The following are symptoms of problems and recommended actions re...

Page 60: ...rea or informative message area Table 17 Alarm Messages and Check Items Alarm Messages Check Items NIBP Check cuff C11 Cuff pressure did not increase enough even after activating the pump for more tha...

Page 61: ...ufficient pressurizing caused by calcified pseudohypertension NIBP Cuff time out over 160 pulses C18 Pulse waveform signal more than 160 beats are detected during measurement There is possibility that...

Page 62: ...wered off If the problem persists reboot the monitor SpO2 Loss of pulse Signal obtained from sensor is weak SpO2 could not be measured There may be a problem with fitting of the SpO2 sensor or blood f...

Page 63: ...G size via the setup menu RESP Check Resp leads electrodes Electrodes or lead wires may not be correctly attached or a circuit is possibly saturated due to offset voltage Check whether electrodes are...

Page 64: ...cuff pressure might be detected wrongly due to noise patient movement or external vibrations Check whether cuffs are not wrapped around thick clothing whether the patient is moving and whether there...

Page 65: ...ains at rest and measure again SYSTEM No recorder paper In case the recorder door is open close the door In case the recorder paper is empty insert new paper and close the door SYSTEM Abnormally shut...

Page 66: ...60 Troubleshooting YM6000 Service Manual This page is intentionally left blank...

Page 67: ...describes disassembly procedures with detailed disassembly instructions and illustrations Disassembly Sequence Flow Chart that is used to access replaceable parts of the monitor is illustrated in Figu...

Page 68: ...y SMPS Case AC Inlet A B Battery Handle C1 C2 C5 C6 D1 D2 D5 C2 1 C2 2 Bracket C3 Knob LCD Window C7 LCD C3 1 C4 Key Board C8 C9 Encorder LCD Guide Speaker D3 Printer Module Assembly D4 IBP Board C2 3...

Page 69: ...hen you started trouble shooting and continue troubleshooting as detected in this section Prior to Disassembly 1 Turn off the monitor by pressing Power button 2 Disconnect the monitor from the AC powe...

Page 70: ...le 18 Part Descriptions Battery and Handle Part Codes Descriptions T0106 Battery Cover M6010 Battery T0104 Handle A T0105 Handle B A Battery disassembly 1 Remove 2 screws 3 6 fastening the battery cov...

Page 71: ...cap bottom T0114 Side cap stopper Before the steps C and D 1 Remove side caps top bottom and stopper on the monitor 2 Remove 6 screws 4 10 on the monitor 3 Separate the front case assembly from the re...

Page 72: ...0107 Side connector holder W0114 Main cable 24 pin C1 Side connector holder disassembly 1 Remove 2 screws 3 6 on the side connector holder 2 Separate the side connector holder from the front case asse...

Page 73: ...e 4 screws 3 4 on the CPU module 2 Remove the CPU module from the main board 3 Remove 8 screws 3 4 to separate 4 supporters 5mm from the main board C2 2 SpO2 module disassembly 1 After step C2 remove...

Page 74: ...es Descriptions T1009 Rubber Key W0115 Key wire P1032 Key board W0117 LCD cable C3 Bracket disassembly 1 Remove 7 screws 3 6 on the bracket 2 Separate the bracket from the front case assembly C4 Key b...

Page 75: ...M4022 Figure 21 Front Case Disassembly sLCD and Bracket Table 23 Part Descriptions LCD and Bracket Part Codes Descriptions M4022 LCD T4112 Bracket C3 1 LCD disassembly 1 After step C3 remove 4 screws...

Page 76: ...Descriptions Knob LCD window Encoder assembly and Connectors Part Codes Descriptions T0096 Front case T0100 Knob T0115 LCD window X1012 Encoder board assembly W0126 Encoder wire T0097 LCD guide T0098...

Page 77: ...orm the front case 2 Remove the power LED window from the front case C10 ECG connector disassembly 1 Remove 4 tapping screws 3 8 on the ECG connector 2 Remove the ECG connector from the front case C11...

Page 78: ...sembly W0155 M0013 Figure 23 Rear case disassembly EtCO2 module Table 25 Part Descriptions EtCO2 module Part Codes Descriptions M0013 EtCO2 module W0155 EtCO2 wire 4 pin D1 EtCO2 module disassembly 1...

Page 79: ...ker D2 SMPS case disassembly 1 Remove 4 screws 3 6 on the SMPS case A 2 Disconnect the AC inlet wire and the printer wire connected to the SMPS 3 Separate the SMPS case from the rear case assembly D3...

Page 80: ...round terminal 1 M0015 NIBP module 1 W0165 NIBP cable 1 D2 1 SMPS case A B disassembly 1 After step D2 remove 3 screws 3 8 on the SMPS case B 2 Remove the SMPS case B from the SMPS case A D2 2 SMPS di...

Page 81: ...4104 Printer module 1 W0118 Printer wire 1 W0124 AC inlet 1 D4 Printer module disassembly 1 Remove the printer wire from the printer module 2 Open the printer door to separate the printer module from...

Page 82: ...76 Disassembly Guide YM6000 Service Manual This page is intentionally left blank...

Page 83: ...batteries General Spare parts along with part numbers are shown in Table 29 Item No corresponds to the circled callout numbers in Figure 27 Obtaining Replacement Parts Mediana Technical Service Depar...

Page 84: ...arts YM6000 Service Manual 16 21 44 9 13 15 14 24 19 10 36 20 28 30 5 33 26 1 25 31 32 7 2 3 4 12 27 34 6 8 11 17 18 29 35 37 38 41 40 39 42 43 22 23 45 46 49 50 49 48 Figure 27 YM6000 Exploded View S...

Page 85: ...ase 17 X1012 Encoder board assembly 18 W0126 Encoder wire 19 P1031 Main board 20 P1033 CPU board 21 T0115 LCD window 22 X1010 Temperature board assembly 3 pin 23 X1011 Temperature board assembly 4 pin...

Page 86: ...ound terminal 44 T4112 Bracket 45 W0153 IBP wire 4 pin 46 W0154 IBP wire 5 pin 47 W0155 EtCO2 wire 4 pin 48 E4118 Water trap receiver assembly 49 W0115 Key wire 12 pin 50 T0111 Printer cover Note You...

Page 87: ...eturned goods authorization number Mark the shipping carton and any shipping documents with the returned goods authorization RGA number Return the monitor by any method that provides proof of delivery...

Page 88: ...rugated cardboard shipping carton with at least 200 pounds per square inch psi bursting strength 3 Fill the bottom of the carton with at least 2 inches of packing material 4 Place the bagged unit on t...

Page 89: ...ed z Creating and displaying warning error messages when conditions are detected that would degrade or prevent valid measurements z Creating and displaying graphical or tabular trend data z Providing...

Page 90: ...sung S3C2440 CPU SDRSM Boot ROM and Flash SDRAM Flash Memory Data Boot Source program Trend setup data S3C2440 ARM9 MCU UART RTC LCD Controller SPI Watch Dog Timer GPIO RTC SpO2 Unit IOP Unit Coin Cel...

Page 91: ...Communication with NIBP Unit Asyncronous Serial Communication with Analog Control Unit Asyncronous Serial Communication with Printer Unit Figure 33 Communication Unit Block Diagram z GUI graphic user...

Page 92: ...P unit measures non invasive blood pressure data Figure 36 NIBP Unit Block Diagram z EtCO2 unit measures EtCO2 data Figure 37 EtCO2 Unit Block Diagram z ECG unit measures electrocardiographic waveform...

Page 93: ...to coulper DC 5V Isolation DC 5V Patient Connector SPI Patient Isolation PIC16C74B Gain control A D Figure 39 Respiration Unit Block Diagram z SpO2 unit measures oxygen saturation data Isolation DC DC...

Page 94: ...djustment verification of lead off QRS heart rate etc Isolation DC DC Photocoupler DC 5V Serial Communication Isolation DC 5V PIC16F74 ECG Filter Selection ECG Gain Control ECG Lead Off ECG Signal Sat...

Page 95: ...d off condition if one of the electrode connections is disrupted z They detect the presence of pacemaker signals within the QRS waveform complex of the ECG NIBP Processing Overview The oscillometric t...

Page 96: ...n tried and have been described in many treatises and international standards So there are many methods to determine the overall system accuracy of Automated Sphygmomanometer using the oscillometric m...

Page 97: ...changes during the pulse plethysmography The monitor determines SpO2 by passing red and infrared light into an arteriolar bed and measuring changes in light absorption during the pulsatile cycle Red...

Page 98: ...monitor measures functional saturation oxygenated hemoglobin expressed as a percentage of the hemoglobin that can transport oxygen It does not detect significant amounts of dysfunctional hemoglobin s...

Page 99: ...ive structures change A low level excitation signal is applied to these leads and the variation of the thoracic impedance caused by the breathing is sensed and processed for display and measurement Th...

Page 100: ...ean pressure values The blood pressure is influenced by the respiratory system This occurs in spontaneous breathing patients but is ore apparent in positive pressure ventilated patients To reduce this...

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