Zoll M Service manual

SERVICE MANUAL

ZOLL MEDICAL CORPORATION

9650-0450-01 Rev P

Warranty (U.S. Only)

(a) ZOLL Medical Corporation warrants to the original equipment purchaser that beginning on the date of installation, or thirty (30) days after the date of shipment from ZOLL Medical Corporation's facility, whichever first occurs, the equipment (other than accessories and electrodes) will be free from defects in material and workmanship under normal use and service for the period of one (1) year. Durin g such peri od ZOLL Medical Corpor ation will, at no charge to the customer, either repair or replace (at ZOLL Medical Corporation's sole option) any part of the equipment found by ZOLL Medical Corporation to be defective in material or workmanship. If ZOLL Medical Corporation's inspection detects no defects in material or workmanship, ZOL L Medical Corporation's regular service char ges shall apply. (b) ZOLL Medical Corporation shall not be responsible for any equipment defect, the failure of the equipment to perform any function, or any other nonconformance of the equipment, caused by or attributable to: (i) any modification of the equipment by the customer, unless such modification is made with the prior written approval of ZOLL Medical Corporatio n; (ii) the use of the equipment with any associated or complementary equipment, (iii) installation or wiring of the equipment other than in accordance with ZOLL Medical Corporation's instructions. (c) This warranty does not cover items subject to normal wear and burnout during use, including but not limited to lamps, fuses, batteries, patient cables and accessories. (d) The foregoing warranty constitutes the exclusive remedy of the customer and the exclusive liability of ZOLL Medical Corporation for any breach of any warranty related to the equipment supplied hereunder. (e) Limitation of Liability: ZOLL shall not in any event be liable to Purchaser, nor shall Purchaser recover, for special, incidental or consequential damages resulting from any breach of warranty, failure of essential purpose, or under any other legal theory including but not limited to lost profits, lost savings, downtime, goodwill, damage to or replacement of equipment and property, even if ZOLL has been advised of the possibility of such damages.

THE WARRANTY SET FORTH HEREIN IS EXCLUSIVE AND ZOLL MEDICAL CORPORATION EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES WHETHER WRITTEN, ORAL, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A P ARTICULAR PURPOSE.

For additional information, please call ZOLL Medical Corporation at 1-800-348-9011 (in Massachusetts 1-978-421-9655). International customers should call the nearest authorized ZOLL Medical Corporation service center.

Software License

Read this License agreement carefully before operating any of the M Series products. Software incorporated into the system is protected by copyright laws and international copyright treaties as well as other intellectual property laws and treaties. This

software is licensed, not sold. By taking delivery of and using this system, the Purchaser signifies agreement to and acceptance of the following terms and conditions: Grant of License: In consideration of payment of the software license fee which is part of the price paid for this product ZOLL Medical Corporation grants the Purchaser

a non-exclusive license, without right to sublicense, to use the system software in object-code form only. Ownership of Software/Firmware: Title to, ownership of and all rights and interests in the system software and all copies thereof remain at all times vested in the

manufacturer, and Licensors to ZOLL Medical Corporation and they do not pass to Purchaser. Assignment: Purchaser agrees not to assign, sub-license or otherwise transfer or share its rights under the license without the express written permission of ZOLL Medical

Corporation. Use Restrictions: As the Purchaser, you may physically transfer the products from one location to another provided that the software/firmware is not copied. You may not

disclose, publish, translate, release or distribute copies of the software/firmware to others. You may not modify , adapt, translate, reverse engineer, decompile, crosscompile, disassemble or create derivative works based on the software/firmware.

No Implied License Possession or purchase of this device does not convey any express or implied license to use the device with replacement parts which would, alone, or in combination with

this device, fall within the scope of one or more of the patents relating to this device.

TABLE OF CONTENTS

PREFACE ....................................................................................................................................................................................... V

Overview ..............................................................................................................................................................................................v

Safety Considerations ...........................................................................................................................................................................v

Additional Reference Material ........................................................................................................................................................... vi

Conventions ....................................................................................................................................................................................... vii

Service Policy Warranty .................................................................................................................................................................... vii

Technical Service .............................................................................................................................................................................. vii

Technical Service for International Customers ................................................................................................................................ viii

CHAPTER 1 MAINTENANCE TESTS .............................................................................................................................................1

Before You Begin the Maintenance Tests ............................................................................................................................................2

Equipment You Need to Perform the Maintenance Tests ....................................................................................................................2

Equipment You Need for the M Series Options Maintenance Tests ....................................................................................................3

CHAPTER 2TROUBLESHOOTING ................................................................................................................................................37

Overview ............................................................................................................................................................................................37

Troubleshooting ..................................................................................................................................................................................38

Zoll M Series Error Messages ............................................................................................................................................................42

CHAPTER 3DISASSEMBLY PROCEDURES ..................................................................................................................................59

Overview ............................................................................................................................................................................................59

Required Equipment ...........................................................................................................................................................................60

Parts That May Need Replacing After Disassembly ..........................................................................................................................60

Safety Precautions ..............................................................................................................................................................................61

Overview of Modules .........................................................................................................................................................................62

1. Removing the ZIF Keeper ............................................................................................................................................65

2. Removing the Front Panel ............................................................................................................................................66

2A.Removing the Display .................................................................................................................................................67

2B.Removing the Control Board ......................................................................................................................................68

3. Removing the Upper Housing Assembly .....................................................................................................................70

M Series Service Manual

4. Removing the System Board Assembly .......................................................................................................................71

5. Removing the Battery Interconnect Board Assembly ..................................................................................................73

6. Removing the High Voltage/Charger Assembly .........................................................................................................74

7. Removing the High Voltage Module Assembly ..........................................................................................................76

8. Removing the High Voltage Capacitor Assembly .......................................................................................................77

9. Removing the System Interconnect Board ...................................................................................................................78

10.Removing the Printer/Recorder Motor ........................................................................................................................79

11.Removing the Lower Housing Assembly ....................................................................................................................80

12.Removing the Print Head Assembly ............................................................................................................................81

13.Removing the PCMCIA Card Slot Assembly .............................................................................................................82

14.Removing the Paddle Release Latch ...........................................................................................................................83

CHAPTER 4 REPLACEMENT PARTS ...........................................................................................................................................85

Overview ............................................................................................................................................................................................85

Replacement Parts ..............................................................................................................................................................................86

Field Replacement Parts .....................................................................................................................................................................90

CHAPTER 5FUNCTIONAL DESCRIPTION ...................................................................................................................................93

Overview ............................................................................................................................................................................................93

Main System Board ............................................................................................................................................................................94

Main System Board Functions ...........................................................................................................................................................96

Power Supply ................................................................................... ...................................................................................................98

ECG Front End ...................................................................................................................................................................................99

Multifunction Electrode (MFE)/PADS (System Board and High Voltage Module) .........................................................................99

CPU and EPU .....................................................................................................................................................................................99

High Voltage Module .......................................................................................................................................................................100

Defibrillator Charging and Discharging ...........................................................................................................................................101

High Voltage Capacitor Monitor ......................................................................................................................................................102

Pacer/Defibrillator Control Signals ..................................................................................................................................................103

Internal Discharge Resistor Module .................................................................................................................................................105

AC/DC Charger Module ...................................................................................................................................................................105

System Interconnect Module ............................................................................................................................................................105

Stripchart Recorder ...........................................................................................................................................................................106

PCMCIA Slots ..................................................................................................................................................................................106

Front Panel and Controls PWBA ......................................................................................................................................................106

M Series Options ............................................................... ...............................................................................................................106

M Series Service Manual

Isolated Power Supply Module .........................................................................................................................................................107

12 Lead Option .................................................................................................................................................................................107

Pulse Oximetry (SpO2) .......................................................... ..........................................................................................................108

End Tidal Carbon Dioxide (EtCO2) .................................................................................................................................................108

Biphasic Waveform ......................................... .................................................................................................................................109

INDEX ..........................................................................................................................................................................................113

APPENDIX ...................................................................................................................................................................................117

Overview ..........................................................................................................................................................................................117

Interconnect Diagram for the M Series Monophasic Unit ...............................................................................................................118

Interconnect Diagram for the M Series Biphasic Unit .....................................................................................................................119

Interconnect Diagram for the M Series CCT Biphasic Unit ............................................................................................................120

iii

M Series Service Manual

Overview

ZOLL Medical Corporation’s M Series Service Manual is intended for the service technician whose responsibility is to identify malfunctions and/or make repairs at the subassembly level. The Zoll M Series Service Manual has five main sections and one appendix.

Preface—Contains safety warnings and an overview of the manual’s contents. Be sure to review this section thoroughly before attempting to use or service the M Series unit.

Chapter 1—Maintenance T ests explains how to check the defibrillator’s performance using a series of recommended checkout procedures to be conducted every six months.

Chapter 2—Troubleshooting provides a listing of the procedures and error messages to help the service technician detect faults and repair them.

Chapter 3—Disassembly Procedures describes step-by-step procedures for removing subassemblies from the M Series unit.

Chapter 4—Replacement Parts List displays a complete list of ZOLL part numbers for field replaceable parts available for the M Series unit, allowing the service person to identify and order replacement parts from ZOLL.

Chapter 5—Functional Description provides technical descriptions for the M Series major subassembly modules. Appendix A—M Series Operator’s Manual.

Preface

Safety Considerations

The following section describes general warnings and safety considerations for operators and patients. Service technicians should review the safety considerations prior to servicing any equipment and read the manual carefully before attempting to disassemble the unit. Only qualified personnel should service the M Series unit.

Federal (U.S.A.) law restricts this unit for use by or on the order of a physician. Safety and effectiveness data submitted by ZOLL Medical Corporation to the Food and Drug Administration (FDA)

under section 510(K) of the Medical Device Act to obtain approval to market is based upon the use of ZOLL accessories such as disposable electrodes, patient cables and batteries. The use of external pacing/defibrillation

M Series Service Manual

electrodes and adapter units from sources other than ZOLL is not recommended. ZOLL makes no representations or warranties regarding the performance or effectiveness of its products when used in conjunction with pacing/ defibrillation electrodes and adapter units from other sources. If unit failure is attributable to pacing/defibrillation electrodes or adapter units not manufactured by ZOLL, this may void ZOLL's warranty.

Only qualified personnel should disassemble the M Series unit.

WARNING! This unit can generate up to 4500 volts with sufficient current to cause lethal shocks.

All persons near the equipment must be warned to “STAND CLEAR” prior to discharging the defibrillator. Do not discharge the unit’s internal energy more than three times in one minute or damage to the unit may result. Do not discharge a battery pack except in a Base PowerCharger Do not use the M Series in the presence of flammable agents (such as gasoline), oxygen-rich atmospheres, or

flammable anesthetics. Using the unit near the site of a gasoline spill may cause an explosion. Do not use the unit near or within puddles of water.

NOTE The M Series is protected against interference from radio frequency emissions typical of two-way radios and cellular

phones (digital and analog) used in emergency service/public safety activities. Users of the M Series should assess the unit’s performance in their typical environment of use for the possibility of radio frequency interference from high-power sources. Radio Frequency Interference (RFI) may be observed as shifts in monitor baseline, trace compression, or transient spikes on the display.

4x4

or compatible ZOLL Battery Charging/Testing unit.

Additional Reference Material

In addition to this guide, there are several other components to the Zoll M Series documentation. They include:

• Operator’s Guide - A comprehensive reference work that describes all the user tasks needed to operate the M Series.

• Configuration Guide - Describes the M Series features and functions whose operation can be customized by authorized users.

M Series Service Manual

Conventions

WARNING! Warning statements describe conditions or actions that can result in personal injury or death.

CAUTION Caution statements describe conditions or actions that can result in damage to the unit. NOTE Notes contain additional information on using the defibrillator.

Service Policy Warranty

In North America: Consult your purchasing agreement for terms and conditions associated with your warranty. Outside of North America, consult ZOLL authorized representative.

In order to maintain this warranty , the instructions and procedures contained in this manual must be strictly followed. For additional information, please call the ZOLL Technical Service Department 1-800-348-9011 in North America.

Technical Service

If the ZOLL M Series unit requires service, contact the ZOLL Technical Service Department: Telephone: 1-978-421-9655; 1-800-348-9011 Fax 1-978-421-0010 Have the following information available for the Technical Service representative:

• Unit serial number.

• Description of the problem.

• Department where equipment is used.

• Sample chart recorder strips documenting the problem, if applicable.

• Purchase Order to allow tracking of loan equipment.

• Purchase Order for a unit with an expired warranty.

vii

M Series Service Manual

If the unit needs to be sent to ZOLL Medical Corporation, obtain a service order request number from the Technical Service representative. Return the unit in its original container to:

Technical Service for International Customers

International customers should return the unit in its original container to the nearest authorized ZOLL Medical Corporation Service Center. To locate an authorized service center, contact the International Sales Department at ZOLL Medical at the above address.

Units are available on loan while your unit is being repaired.

ZOLL Medical Corporation 269 Mill Road Chelmsford, Massachusetts 01824-4105

Attn: Technical Service Department Telephone: 1-800-348-9011; 1-978-421-9655 FAX: 978-421-0010

viii

M Series Service Manual

Overview

The M Series has two checkout procedures: the operator’s shift checklist and the extensive six-month maintenance tests checkout procedures.

Because the M Series units must be maintained ready for immediate use, it is important for users to conduct the Operator’s Shift Checklist procedure at the beginning of every shift. This procedure can be completed in a few minutes and requires no additional test equipment. (See the ZOLL M Series Operator’s Guide for the Operator’s Shift Checklist.)

A qualified biomedical technician must perform a more thorough maintenance test checkout every six months to ensure that the functions of the M Series unit work properly. This chapter describes the step by step procedures for performing the six month maintenance test checkout. Use the checklist at the back of this document (ZOLL M Series Maintenance Tests Checklist) to record your results of the maintenanc e tests.

Chapter 1

Maintenance Tests

This chapter describes the following maintenance tests:

• 1. Physical Inspection of the Unit

• 2. Front Panel Button Test

• 3. 3, 5, and 12 Leads Test

• 4. Power Supply Test

• 5. Leakage Current Test

• 6. Paddles Test

• 7. Heart Rate Display Test

• 8. Calibrating Pulses on Strip Chart Test

• 9. Notch Filter Test

• 10. Heart Rate Alarm Test

M Series Service Manual

• 11. Defibrillator Self Test

• 12. Synchronized Cardioversion Test

• 13. Shock Test

• 14. Summary Report Test

• 15. Advisory Message Test

• 16. Pacer Test

•17. SpO

•18. EtCO

Before You Begin the Maintenance Tests

• Assemble the tools or specialized testing equipment listed in the “Equipment You Need to Perform the Maintenance

• Keep an extra fully charged ZOLL M Series battery available.

• Schedule an hour to conduct the entire maintenance test.

• Photocopy the checklist at the back of this document and use the copy to record your results. As you conduct each

Monitor Test

Tests” section shown below.

step of a procedure, mark the Pass/Fail/NA check boxes on your checklist and then save it for your maintenance file.

• Perform the tests in the order presented.

• Perform all the steps of each test procedure.

• Complete all the steps of the procedure before evaluating the test results.

Equipment You Need to Perform the Maintenance Tests

For testing purposes, you can substitute an equivalent device.

• Zoll Medical Electrode Adapter from Dynatech Nevada Inc. (DNI part number 3010-0378).

• Dynatech Impulse 4000 Defibrillator Analyzer with 1.06 software or higher.

•Bio-Tek

• Novametrix Medical Systems, Inc. Capnostat Simulator TB1265/7100 or equivalent. (For EtCO

601 Pro Series International Safety Analyzer.

Index 2PFE SpO2 Simulator or equivalent. (For SpO2 units only.)

units only.)

M Series Service Manual

• ECG Simulator; 12 Lead Simulator for 12 Lead test (e.g., Symbio CS1201).

• Stop watch.

• Standard series II PC flash memory cards.

• PCMCIA card reader and PC.

• Zoll Data Control (ZDC) for Windows

• Phillips #1 screwdriver.

• Phillips #2 screwdriver.

• Flatblade screwdriver.

• Needle nose pliers without teeth.

• Orange (wooden) sticks.

Equipment You Need for the M Series Options Maintenance

software from Pinpoint T echnologies, Version 1.5 or higher (no equivalent)

or Zoll Data Control (ZDC) for DOS software, Version 5.5 or higher (no equivalent).

Tests

•SpO2 cable and sensor (if option is installed).

•EtCO

• Paddles.

•Printer Paper.

• Battery.

• AC line cord.

• 3 lead, 5 lead and 12 lead ECG cables. (12 lead cable needed if 12 lead option is installed.)

cable and sensor (if option is installed).

M Series Service Manual

1.0 Physical Inspection of the Unit

Tools Needed None.

Test Setup None.

Observe this... Pass/Fail

1.1 Housing

Is the unit clean and undamaged?

1.2 Does the unit show signs of excessive wear?

1.3 Does the handle work properly?

1.4 Does the recorder drawer open and close properly?

1.5 Are input connectors clean and undamaged?

1.6 Are there any cracks in the housing?

1.7 Do the front panel or selector switches have any damage or cracks?

1.8 Are there any loose housing parts?

1.9 Do the paddle latches work properly?

1.10 Paddles

Do the adult and pedi plates have major scratches or show signs of damage?

1.11 Do the adult shoes slide on and off easily to expose the covered pedi plates?

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1.12 Are the paddles clean (e.g., free of gel) and undamaged? (if applicable)

1.13 Cables

Are all cables free of cracks, cuts, exposed or broken wires?

1.14 Are all bend/strain reliefs undamaged and free of excessive cable wear?

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M Series Service Manual

Observe this... Pass/Fail

1.15 Battery

Is the ZOLL battery fully charged?

1.16 Is the battery seated in the battery well correctly?

Record your results on the Maintenance Test Checklist.

M Series Service Manual

2.0 Front Panel Button Test

Tools Needed None.

Test Setup Do the following:

• Install strip chart paper into the recorder tray.

• Install the battery in the unit or connect the A/C power cord to the unit and then plug the cord into an electrical outlet.

• Connect the universal cable and ECG cable (3 lead, 5 lead, or 12 lead) to the ZOLL simulator, or Dynatech Impulse 4000 Analyzer (or equivalent).

Do this... Observe this... Pass/Fail/NA

2.1 Turn the selector switch to

MONITOR. (For AED units, turn the selector switch to ON and select Manual mode.)

2.2 Press the LEAD button;

three times for the 3 lead cable and seven times for the 5 lead cable.

2.3 Connect the 12 lead cable to unit and simulator. Press the LEAD button and select the lead for each of the 12 lead settings.

2.4 Set the simulator to NSR of 120 BPM. T o check the size of the ECG waveform, press the SIZE button.

Listen for 4 beep tones. PADS and MONITOR display on the monitor. NOTE: PADS is a factory default setting.

Each time you press the LEAD button, a different lead number appears under the LEAD heading on the display. PADS, I, II, III will display a 3 lead ECG cable if connected or no ECG cable is connected. PADS, I, II, III, AVR, AVL, AVF, V1 will display a 5 lead ECG cable.

A 12 Lead cable will display PADS, I, II, III, AVR, AVL, AVF, VI, V2, V3, V4, V4, V5, V6.

As you press the SIZE button five times (0.5, 1.0, 1.5, 2.0, 3.0), note that the size of the ECG waveform appropriately changes on the display.

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M Series Service Manual

Do this... Observe this... Pass/Fail/NA

2.5 Press the ALARM SUSPEND button.

2.6 Press the RECORDER button (if equipped).

2.7 Open the paper tray. Press RECORDER button.

2.8 Close the paper tray. Press RECORDER button.

2.9 Press RECORDER button. Strip chart paper stops flowing out of paper tray.

2.10 Press the VOLUME softkey.

To increase the volume of the beep, press the Inc. softkey.

Bell changes from disabled to enabled. If the alarm sounds, press the ALARM SUSPEND button to turn it off. The alarm will only be suspended for 90 seconds at this point. Press and hold the ALARM SUSPEND button for 3 seconds to disable alarms.

The strip chart paper moves out of the unit from the paper tray. Check that the correct time, date, ECG lead annotation and waveform are recorded on the paper. (Set Time and Date, if necessary.)

CHECK RECORDER message appears on the monitor.

Strip chart paper flows out of paper tray. Verify that the CHECK RECORDER message no longer displays.

The volume bar graph displays.

Audible beep when the QRS wave displays. The bar graph increases on the display indicating an increase in volume. This action does not increase the volume which is normal. Note: The QRS tone is on or off. There is no gradual change in volume. If equipped, voice prompts are gradual. Note: The voice volume has 5 settings. Setting 3 is in the mid-range.

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2.11 To decrease the volume of the beep, press the Dec. softkey.

2.12 Press the CONTRAST button.

The bar graph decreases on the display indicating a decrease in volume. The volume shuts off at the last bar; otherwise, the volume is the same as originally set.

Contrast menu displays.

M Series Service Manual

Do this... Observe this... Pass/Fail/NA

2.13 (For LCD monitors only.) Press the CONTRAST button. To increase the contrast of the display, press the Inc. softkey.

2.14 To decrease the contrast of the display, press the Dec. softkey.

2.15 Press the SUMMARY button (if available).

2.16 Press the CODEMARKER button (if available).

2.17 Connect A/C current and install the battery. Turn the unit off.

Background light and characters display. The contrast increases on the monitor display (LCD). The brightness increases on the monitor display (EL).

The bar graph increases on the display indicating an increase in contrast. NOTE Electro luminescence (EL) displays have only two settings

independent of the bar graph without any gradual changes. If EL brightness is already set to its highest level, brightness will not change.

The bar graph decreases on the display indicating a decrease in contrast (LCD) and brightness (EL). The display contrast and brightness changes.

Summary menu displays on the monitor showing the summary report options.

Code marker menu displays.

CHARGER ON indicator lights. The amber or green lights illuminate. Note: If both lights flash ON/OFF, the unit is defective or no battery is installed.

For LCD monitors

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2.18 If applicable, connect D/C current and install the battery. Turn the unit off.

2.19 Remove the battery. Note that both charge lights (green and amber) flash alternately.

2.20 Replace the battery and the turn unit on.

CHARGER ON indicator lights. The amber or green lights illuminate. The yellow light indicates the battery is being charged. The green light indicates the battery is fully charged to present capacity. NOTE If both lights flash ON/OFF, the unit is defective or no

battery is installed.

Note that the yellow charge light illuminates.

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M Series Service Manual

Do this... Observe this... Pass/Fail/NA

2.21 Press the ANALYZE button (if available).

2.22 Move the selector switch to DEFIB. Select 2J. Press the CHARGE button.

2.23 Press and hold the ENERGY SELECT down arrow.

2.24 Press and release the ENERGY SELECT up arrow 19 times.

2.25 Press the CHARGE button. Note the disp lay shows the unit charged up to 360J (200J -

2.26 Press the SHOCK button. The unit discharges and the SHOCK button is no longer lit. A 15

Record your results on the Maintenance Test Checklist.

SELECT DEFIB MODE message appears on the monitor. (For manual devices.)

The display shows that the unit is charging. The SHOCK button lights when the unit is charged. Ready tone for DEFIB sounds.

Unit discharges internally and selected energy decrements to 1J.

The following energy amounts display incrementally 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 360J (for DSW). Biphasic: 1-10, 15, 20, 30, 50, 75, 100, 120, 150, 200J.

Biphasic) and the SHOCK button lights.

second strip chart automatically prints, displaying the number of joules delivered (if equipped with recorder).

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M Series Service Manual

3.0 3, 5, and 12 Leads Test

Tools Needed 3 lead, 5 lead, and 12 lead cables.

Test each cable separately.

Test Setup Note: The M Series unit must be configured to display ECG LEAD OFF message.

Connect the lead wires appropriate to each test to the Dynatech Impulse 4000 or equivalent (Symbio CS1201).

Do this... Observe this... Pass/Fail/NA

3.1 Turn the selector switch to MONITOR. Select leads.

3.2 Disconnect one lead from the simulator .

3.3 Reconnect the lead. Repeat step 3.2 with the remaining leads.

3.4 Repeat 3.2 and 3.3 for 5 lead and 12 lead cables.

Record your results on the Maintenance Tests Checklist.

NO ECG LEADS OFF message displayed.

The ECG LEAD OFF message displays within 3 seconds (if configured).

Wait for ECG LEAD OFF message to clear from the display (if configured).

NOTE: If heart rate alarm sounds, press and hold the ALARM SUSPEND button for 4 seconds to disable the alarms.

NOTE: When testing the 12 lead cable, the ECG LEAD OFF message displays when you pull off a limb lead. When you pull off a V lead, the ECG VX LEAD OFF message displays where “X” is the number between 1 and 6.

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M Series Service Manual

4.0 Power Supply Test (Optional)

Tools Needed 2 red miniature alligator to miniature alligator leads.

1 black miniature alligator to miniature alligator test lead. DC power supply (15 Amp minimum).

0.1

Ω 1% resistor (¼W or greater).

1000

Ω 1% ¼W resistor.

Fluke 75 multimeter or equivalent.

Test Setup Make sure the unit and power supply are turned off.

Connect one end of the black lead to the “-” terminal in the battery well. Connect the other end of the black lead to the “-” terminal of the power supply. Connect the red lead to “+” terminal socket of the battery well. Use the middle pin with the plastic guard around it.

Connect the other end of the red lead to the “+” terminal of the power supply. Set the power supply voltage to 7V.

CAUTION Be sure to connect the power supply properly to the M Series battery well terminals or damage to the unit may result.

Do NOT raise the power supply voltage above 12V.

Red

Battery Well

15 Amp Supply

Black

M Series Service Manual

Do this... Observe this... Pass/Fail

4.1 Turn the selector switch to MONITOR. (For AED units, turn the selector switch to ON and select Manual mode.)

4.2 Turn the unit off.

4.3 Adjust the power supply voltage to 10.3V and turn the selector switch to MONITOR (for AED units, turn the selector switch to ON).

4.4 Low Battery Test Set voltage to 9.8V.

4.5 Set voltage to 9.3V. LOW BATTERY message displays within 30 seconds.

4.6 Shut Down Voltage Test Set voltage to 8.5V.

Record your results on the Maintenance Tests Checklist.

The unit should not turn on.

The unit should turn on.

No LOW BATTERY message displays.

Unit should shut off within 30 seconds.

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M Series Service Manual

Test Setup Remove red lead from power supply and connect to 0.1Ω resistor.

Connect other end of resistor to “+” terminal of power supply using a second red lead. Connect multimeter across the resistor. Set voltage scale (if DVM is not autoranging) to 220 mV.

Red

Battery Well

Black

Do this... Observe this... Pass/Fail/NA

DMM

15 Amp Supply

4.7 System Current Test Set power supply to 10.3V.

4.8 Turn the selector switch to MONITOR. (For AED units, turn the selector switch to ON and select Manual mode.)

4.9 Turn unit off.

Record your results on the Maintenance Tests Checklist.

Voltage across resistor should be 80 mV or less (<800 mA of ON current). NOTE: Without optional parameters.

a) With green screen or LCD and no options <80mV b) With yellow screen and no options <81mV c) With yellow screen and SpO d) With yellow screen and voice recording <91mV e) With yellow screen, voice recording and SpO f) All devices with EtCO

<121mV

<104mV

<114mV

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M Series Service Manual

Test Setup for Off Current Test

Remove 0.1Ω resistor and replace with 1KΩ. Connect DMM across resistor. Set voltage scale to DCV. Measure voltage across resistor.

Do this... Observe this... Pass/Fail

4.10 Off Current Test Measure across resistor with unit turned off.

Record your results on the Maintenance Tests Checklist.

Voltage should be less than 450 mV (<450

µA of current).

M Series Service Manual

5.0 Leakage Current Test

Tools Needed See the manufacturer’s instructions or supplied specifications for the leakage tester you use.

Setup See the manufacturer’s instructions or supplied specifications for the leakage tester you use. Repeat leakage test with

accessories: MFC, external paddles, internal paddles, and anterior/posterior paddles.

Maximum Leakage Acceptance Limits

Normal Condition Single Fault Condition* ECG 10µΑ 50µΑ MFC 100µΑ 100µΑ Earth 500µΑ 1000µΑ *Single fault considered AC mains on applied part.

M Series Service Manual

6.0 Paddles Test

Tools Needed None.

Test Setup If applicable, connect the universal cable to the paddles. Place paddles in paddle wells.

Do this... Observe this... Pass/Fail/NA

6.1

6.2 Press and release the

6.3 Press and release the

6.4 Select 30J using the paddle

6.5

6.6

6.7

Turn the selector switch to

DEFIB. Press and hold the ENERGY DOWN button on the sternum paddle.

ENERGY UP button on

the sternum paddle for each setting.

RECORDER button on the sternum paddle.

ENERGY button. Press the CHARGE button on the

Apex paddle. Press and release the APEX

SHOCK button. Press and release the

STERNUM SHOCK button.

Press and hold both paddles SHOCK buttons.

The energy selection decreases to 1J.

The energy selection increases incrementally to 360J (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 360J). Biphasic: 1-10, 15, 20, 30, 50, 75, 100, 120, 150, 200J.

The recorder turns on. Press and release again to turn off.

The unit charges to 30J, then the red LED charge indicator illuminates and the charge tone sounds. (Note that the front panel shock button does not illuminate).

No discharge.

The unit discharges. The TEST OK message displays and the red LED turns off. The recorder runs.

ooo

Record your results on the Maintenance Tests Checklist.

M Series Service Manual

7.0 Heart Rate Display Test

Tools Needed Calibrated ECG simulator with 60Hz sine wave output capability.

Mini-phone plug for measuring output signal from 1 Volt ECG OUT jack (optional). ECG Cable (3 or 5 leads).

Test Setup Turn the selector switch to MONITOR. Press LEAD button until “I” displays.

Connect the ECG leads to the DYNATECH Impulse 4000 or equivalen t . Connect the ECG cable to the unit.

Do this... Observe this... Pass/Fail/NA

7.1 Set the ECG Simulator to

120BPM.

Record your results on the Maintenance Tests Checklist.

The Heart Rate displays as 120 +/- 2 bpm

ooo

M Series Service Manual

8.0 Calibrating Pulses on Strip Chart Test

Tools Needed None.

Test Setup None.

Do this... Observe this... Pass/Fail/NA

8.1

8.2 Press and hold SIZE button

Record your results on the Maintenance Tests Checklist.

Press the RECORDER button.

to activate the calibration signal.

The strip chart displays a signal of 300 ppm with an amplitude of 10 mm +/- 1 mm. The signal also appears on the video display.

ooo

M Series Service Manual

9.0 Notch Filter Test

Tools Needed Dynatech Impulse 4000 (or equivalent).

Test Setup Connect the ECG cable to the DYNATECH Impulse 4000 or equivalent.

Connect the ECG cable to the unit

Do this... Observe this... Pass/Fail/NA

9.1

9.2

9.3 Press RECORDER button. Verify that the waveform amplitude on the strip chart is less than

9.4 Turn the ECG simulator off. Record your results on the Maintenance Tests Checklist.

Turn the selector switch to MONITOR mode.

(For AED units, turn the selector switch to ON and select Manual mode.)

Select lead I, size 3x. Select 60Hz (or 50 Hz for a

50Hz unit) on the Dynatech Impulse 4000.

1.5 mm.

ooo

M Series Service Manual

10.0 Heart Rate Alarm Test

Tools Needed Dynatech Impulse 4000.

Do this... Observe this... Pass Fail/NA

10.1

10.2 Press ALARMS.

10.3 Press SELECT PARAM softkey

10.4 Press INC> for state.

10.5 Press DEC>for state.

10.6

10.7

10.8

Turn the selector switch to MONITOR mode.

(For AED units, turn the selector switch to ON and select Manual mode.)

Connect the ECG leads to the Dynatech Impulse 4000. Set the simulator to 120 BPM and the defibrillator to lead II.

until ECG HR displays.

Press INC> until ENABLE displays. ENABLE displays. Set LOW limit to 30, HIGH limit to

150 then, press the RETURN softkey.

Press ALARM SUSPEND button. No alarm sounds.

Lead II message displays. NSR ECG at 120 BPM +/- 2 displayed.

The alarm menu displays. Cursor scrolls through parameters.

Cursor scrolls through ENABLE, AUTO and DISABLE.

Cursor scrolls through ENABLE, DISABLE, AND AUTO.

MONITOR displays.

ooo

ooo ooo

ooo

ooo ooo

ooo

10.9 Remove a lead wire from the

Dynatech Impulse 4000.

The bell symbol flashes and the heart symbol stops flashing. The ECG LEAD OFF alarm tone sounds. Recorder prints a stripchart showing a low heart rate, if enabled.

ooo

M Series Service Manual

Do this... Observe this... Pass Fail/NA

10.10 Reattach ECG Lead wire to

Dynatech Impulse 4000 and hold the ALARM SUSPEND button on unit for 4 seconds.

10.11 Press the ALARM SUSPEND

button.

10.12 Set simulator to 160 BPM or higher.

10.13 Press the ALARM SUSPEND

button in the unit.

10.14 Press and hold ALARM SUSPEND

for 4 seconds to disable alarms.

Record your results on the Maintenance Tests Checklist.

The bell symbol has an “X through it. The heart symbol flashes with each QRS wave.

Alarm is enabled. Bell symbol (without “X”) displays.

Heart Rate Value is highlighted, alarm tone sounds, the bell and the heart symbol both flash.

Alarm is suspended for 90 seconds. The bell symbol has an “X” through it. The heart symbol flashes with each QRS wave.

ooo

M Series Service Manual

11.0 Defibrillator Self Test

SHOCK HAZARD!

TAKE THE NECESSRY PRECAUTIONS TO GUARD AGAINST SHOCK OR INJURY BEFORE YOU START CONDUCTING THE DEFIRBILLATOR TESTS.

Keep hands and all other objects clear of the multi-function cable connections and defibrillator analyzer when discharging the defibrillator.

Before you discharge the defibrillator, warn everyone near the equipment to STAND CLEAR.

CAUTION Do NOT internally discharge the unit more than 3 times in 1 minute. Note that multiple rapidly repeating internal

discharges at more than 30 Joules may damage the unit.

Tools Needed MFC Test Port Connector 1004-0053-99 with universal cable.

MFC Test Adaptor Connector (Dynatech Nevada Part Number 3010-0378 or equivalent). Dynatech Impulse 4000 or equivalent defibrillator analyzer. ECG Cable. Stop watch.

Test Setup Ensure the unit is turned off and the ECG cable is connected to the unit and analyzer. The universal cable should not

be connected to any equipment at the beginning of this test.

Do this... Observe this... Pass/Fail

11.1 Turn the selector switch to

DEFIB mode. (For AED units, turn the selector switch to ON and select Manual mode.) Set leads to PADS.

CHECK PADS/POOR PAD CONTACT message displays.

M Series Service Manual

Do this... Observe this... Pass/Fail

11.2 Connect the universal cable to

the MFC test port.

11.3

11.4

11.5

11.6

11.7

Record your results on the Maintenance Tests Checklist.

Select energy level of 100J and press the CHARGE button.

Press the SHOCK button. Unit does not discharge. DEFIB PAD SHORT message displays.

Set energy level to 30J. Unit internal ly disch arges.

Press the CHARGE button. Unit charges to 30J and displays DEFIB 30J READY. The charge

Press and hold SHOCK button. Unit discharges. TEST OK message and number of joules

DEFIB PAD SHORT message displays.

The charge time is >2 second and <10 seconds and SELECT 30J FOR TEST is displayed.

ready tone sounds.

delivered message displays. For example, using the message at the top of the printed strip chart would read as follows:

For monophasic unit: 30 JOULES TEST OK. 37-47A JOULES DEL=30 IMPED=0. For Biphasic Unit: 30 JOULES TEST OK. TEST_CUR=10-14A DEFIB_IMPED=0. NOTE The impedance value may range from 0 to 5Ω.

oo oo oo

M Series Service Manual

12.0 Synchronized Cardioversion Test

Tools Needed Dynatech Impulse 4000 or equivalent defibrillator analyzer.

Test Setup Connect the universal cable via the adapter (D.N.I #3010-0378) to the defibrillator analyzer.

Select cardioversion on analyzer. Input 1mV ECG signal at 60 -120 BPM.

Do this... Observe this... Pass/Fail

12.1

12.2

12.3

12.4

Record your results on the Maintenance Tests Checklist.

Press LEAD button to select PADS and Size X1.

Press the SYNC softkey on the defibrillator. Enter synchronized cardioversion timing test mode on the defibrillator analyzer.

Select 360J (200J for Biphasic unit).

Press the CHARGE button. When the SHOCK button lights, press and hold the SHOCK button.

Sync appears on display. Sync markers display on the monitor. The sync marker appears as

a down arrow over the ECG R-wave peaks on strip chart and display.

Observe that the R-wave to shock delay (sync delay) is less than 60 milliseconds on the analyzer display.

Defibrillator discharges.

M Series Service Manual

13.0 Shock Test

Tools Needed Dynatech Impulse 4000 or equivalent defibrillator analyzer.

Test Setup Stop watch.

Connect the universal cable via the adapter (D.N.I #3010-0378) to the defibrillator analyzer. Ensure that a fully charged battery is installed in the unit.

NOTE: If your M Series AED does not have manual override capability, do not perform this test.

Do this... Observe this... Pass/Fail/NA

13.1 Turn the selector switch to DEFIB

mode. (For AED units, turn the selector

switch to ON and select Manual mode.)

13.2 Press the ENERGY SELECT down

arrow until 1J displays.

13.3 Press the CHARGE button.Wait for

the SHOCK button to illuminate.

13.4 Press the SHOCK button.

13.5 Repeat for all settings 1-300J

(DSW); 1-150J (Biphasic)

13.6 Press the ENERGY SELECT up

arrow until 360J (200J for Biphasic) displays.

DEFIB 1J SEL displays.

DEFIB 1J RDY displays.

Unit discharges 0J-2J into the simulator. (Note: The displayed rhythm may change shape for 30 seconds before it returns to an original rhythm. This is caused by the operation of the adaptive bandwidth defibrillator recovery circuit.)

Energy delivered is within + /- 15% or 2J of setting which ever is greater.

DEFIB 360J SEL displays or DEFIB 200J SEL displays (for Biphasic unit).

ooo

M Series Service Manual

Do this... Observe this... Pass/Fail/NA

13.7

13.8

13.9

13.10

Record your results on the Maintenance Tests Checklist.

Press the CHARGE button and start timing with a stopwatch. Stop timing when the SHOCK button illuminates.

Press the SHOCK button. Record the value of the discharge

energy that is displayed on the analyzer.

(Biphasic unit only) Note the Patient Current and Defib Impedance on the strip chart.

(AED unit only) Disconnect the cable from the analyzer.

Observe and record the value of the charge time on the stop watch.

Charge time (DSW) 4.0-8.0 sec. Charge time (Biphasic) 3.0-6.0 sec.

360J discharge energy (DSW) 306-414J. 200J discharge energy (Biphasic)170-230J.

Patient Current 22-24A. Defib Impedance 46-54 Ohms.

CHECK PADS audio prompt.

ooo

M Series Service Manual

14.0 Summary Report Test (if applicable)

Tools Needed None.

Test Setup Connect the universal cable to the defibrillator analyzer. If you are using paddles, place the paddles on the analyzer’s

discharge plates.

Do this... Observe this... Pass/Fail

14.1 Press and hold the

SUMMARY softkey for 4 to 8 seconds to erase any previously stored data.

14.2 Set selector switch to

DEFIB. Select 300J (200J for Biphasic) using the

ENERGY SELECT button, and press the CHARGE button. When

charged, press the SHOCK button to discharge into the defibrillator analyzer.

14.3 Wait 18 seconds, then press

the Code Marker softkey. Press the CPR softkey.

14.4 Turn the unit off. Wait 10

seconds and then turn the unit on. Press the SUMMARY softkey, then press the PRINT CHART softkey.

ERASING REPORT displays.

The unit successfully discharges and prints a strip chart.

The Code Markers display.

Summary report prints. The report displays the correct date, time, the shock delivered and Code Marker event.

Record your results on the Maintenance Tests Checklist.

M Series Service Manual

15.0 Advisory Message Test (for AED and Manual/Advisory Units)

Tools Needed None.

Test Setup Connect the universal cable via the adapter (D.N.I #3010-0378), then attach to the defibrillator analyzer.

Do this... Observe this... Pass/Fail

15.1

15.2

15.3

15.4

Record your results on the Maintenance Tests Checklist.

Connect universal cable to the simulator.

Turn the selector switch to DEFIB mode.

(For AED units, turn the selector switch to ON.)

Select VF (ventricular fibrillation) on the simulator, then press the ANALYZE button.

Press the SHOCK button. Unit discharges.

Select the NSR (normal sinus rhythm) on the simulator, then press the ANALYZE button.

ANALYZING ECG message displays. STAND CLEAR message displays.* SHOCK ADVISED message displays.* PRESS SHOCK message displays*+ *AED’s audio prompts are standard. Advisory audio prompts are

user configurable on later manufactured units. +If configured for auto charge.

ANALYZING ECG message. STAND CLEAR message.* NO SHOCK ADVISED message.* *AED’s audio prompts are standard.

oo oo

M Series Service Manual

16.0 Pacer Test

Tools Needed Dynatech Impulse 4000 Analyzer (software 1.06 or higher) with optional external plug in pacing module (TQA-17) or

equivalent. Note: The following tests are to be performed only on M Series units equipped with the optional pacing function.

The pacer output can be measured using an oscilloscope set to DC coupling connected across a load resistor. (See diagram in column for universal cable connector polarity.) The load resistor is a 100 ohm, 5 watt or greater. The pacer output is a positive going pulse, 40 +/- 2 ms duration with an amplitude of 0.1 volt per milliamp of selected output (e.g., 40 milliamps of selected output has an amplitude of 4 +/- 0.5 volts the specified tolerance displayed on the oscilloscope).

If an external non-invasive pacer analyzer is being used, then follow the manufacturer’s guidelines for measuring the frequency (ppm), output (mA) and the pulse width measured in milliseconds. Note that the analyzer pace load resistor must be less than 250 ohms.

Test Setup Connect the universal cable from the M Series to the External Pacer Load (TQA-17) of the Impulse 4000.

Turn the Main Selector knob of the M Series to the Pacer mode.

Do this... Observe this... Pass/Fail

16.1

16.2

Set the PACER OUTPUT to 14 mA and disconnect MFC connector from the Dynatech Impulse 4000.

Reconnect the to the

Dynatech Impulse 4000.

Press Clear Pace Alarm softkey.

universal cable

CHECK PADS AND POOR PAD CONTACT message displays. The pace alarm is active.

CHECK PADS AND POOR PAD CONTACT message disappears. The pace alarm is cleared.

16.3

16.4

Set rate to 180 ppm; output to 0mA.

Increase the output to 20mA. Output on the Dynatech Impulse 4000 is 20mA +/- 5mA. Pulse

No output appears on the Dynatech Impulse 4000.

width is 40mS +/-2mS.

M Series Service Manual

Do this... Observe this... Pass/Fail

16.5

16.6

16.7

16.8

16.9

16.10

16.11

16.12

16.13

16.14

Increase the output to 40mA. Output on the Dynatech Impulse 4000 is 40m A +/- 5 mA. Pulse

width is 40mS +/-2mS.

Increase the output to 60mA. Output on the Dynatech Impulse 4000 is 60mA or +/- 5mA. Pulse

width is 40mS +/-2mS.

Increase the output to 80mA Output on the Dynatech Impulse 4000 is 80mA or +/- 5mA. Pulse

width is 40mS +/-2mS.

Increase the output to 100mA. Output on the Dynatech Impulse 4000 is 100mA or +/- 5mA.

Pulse width is 40mS +/-2mS.

Increase the output to 120mA. Output on the Dynatech Impulse 4000 is 120mA or +/- 6mA.

Pulse width is 40mS +/-2mS.

Increase the output to 140mA. Output on the Dynatech Impulse 4000 is 140mA or +/- 7mA.

Pulse width is 40mS +/-2mS.

Decrease the output to 60mA. Decrease the rate to 30 ppm.

Increase the rate to 40ppm. Pacer rate on Dynatech is 39-41 ppm.

Increase the rate to 60ppm. Pacer rate on is Dynatech is 59-61 ppm.

Increase the rate to 80ppm. Pacer rate on Dynatech is 78-82 ppm.

Pacer rate on Dynatech is 29-31 ppm.

oo oo oo

16.15

16.16

16.17

16.18

Increase the rate to 100ppm. Pacer rate on Dynatech is 98-102 ppm.

Increase the rate to 120ppm. Pacer rate on Dynatech is 118-122 ppm.

Increase the rate to 180ppm. Pacer rate on Dynatech is 177-183 ppm.

Decrease the rate to 50 ppm. Pacer rate on Dynatech is 49-51 ppm.

oo oo oo oo

M Series Service Manual

Do this... Observe this... Pass/Fail

16.19

16.20

16.21

16.22

Record your results on the Maintenance Tests Checklist.

Connect the ECG cable to the M Series and Dynatech Impulse 4000. Select the ECG at 60 BPM on the Dynatech Impulse 4000.

Press the Async Pace softkey. ECG at 60 BPM seen on the display with the pace stimulus

Turn off Dynatech. Set Pacer Rate to 100ppm. Press the RECORDER ON button.

Press and hold 4:1 button. Observe the pace stimulus markers every 60 mm+/- 1.5 mm.

ECG at 60 BPM is seen on the display and no stimulus markers.

markers displayed. Async pace message displays. Observe the pace stimulus markers every 15mm +/-1mm.

M Series Service Manual

17.0 SpO2 Monitor Test for SpO2 Option

Tools Needed Masimo

Masimo Bio-Tek Index 2PFE SpO

Test Setup Connect the universal cable to the MFC test plug.

Reusable Sensor.

Patient Cable.

Simulator (or equivalent).

DO NOT connect the ECG cable to the simulator. Install the Masimo Connect the Masimo

Patient Cable and attach the Masimo® sensor to the patient cable.

sensor to the finger simulation post. Place a fully charged battery into the battery well or connect to AC power (DC power, if equipped). Ensure that the SpO

Do this... Observe this... Pass/Fail

17.1 Turn the selector switch to

MONITOR. (For AED units, turn the selector switch to ON and select Manual mode.)

17.2 Wait ten seconds. Turn on the SpO

Press the SIM softkey on the Index SpO

the MAN softkey.

Simulator is off.

simulator.

Simulator. Press

The SpO monitor.

The SpO

saturation percentage appears as a dashed line on the

PULSE SEARCH message displays.

17.3 Press the 02+ or 02- softkey of the simulator until the SpO

output is at 98%.

The M Series monitor. Note that you may need to wait up to 2 minutes for the

information to appear on the ZOLL display.

SpO

reading of 98 +/- 1% appears on the M Series

M Series Service Manual

Do this... Observe this... Pass/Fail

17.4

17.5

17.6

17.7 Press Wave 2 softkey.

17.8 Press RECORDER. The plethysmographic waveform prints on the strip chart paper.

17.9

Using the Index Simulator, press the BPM+ or

BPM- softkey until the heart rate is 230 BPM.

Using the Index Simulator, press the BPM-

softkey until the heart rate is 50 BPM

Using the Index Simulator, press the 02+

softkey until the SpO is at 72%.

Select the SpO

Using the Index Simulator, press the BPM-

softkey until the heart rate is at 230 BPM.

SpO

output

waveform.

SpO

The SpO2 rate 230 BPM displays on the simulator screen. Note that you may need to wait up to 2 minutes for the

information to appear on the ZOLL display.

SpO

The The heart

The SpO2 saturation of 96-100% displays on the unit. The heart rate of 46-54 BPM displays on the M Series monitor.

The The heart rate of 46-54 BPM displays on the M Series monitor.

Plethysmographic waveform appears on the ZOLL display.

The The heart rate in the heart position of 226-234 BPM displays on

the monitor.

saturation of 96-100% appears on the M Series display.

rate of 226-234 BPM displays on the M Series monitor.

SpO2 saturation of 70-74% displays on the unit.

SpO

saturation rate of 70-74% displays on the unit.

oo oo

17.10

17.11

Record your results on the Maintenance Tests Checklist.

Select Wave 2

Remove the Masimo cable.

SpO

patient

Verify that the waveform is displayed at the correct rate. Print the waveform.

M Series Service Manual

18.0 EtCO2 Monitor Test (for EtCO2 Option)

Tools Needed Novametrix Capnostat Simulator Tb 1265/7100.

Test Setup Install the battery.

On the Novatrix Simulator, set the following: Set inspired CO Set% CO

Set Sensor Location to ZERO CELL. Set Source Current to NORMAL. Set CO

mode to CONTINUOUS.

Set Temperature to NORMAL.

to OFF.

to 0.

Do this... Observe this... Pass/Fail

18.1

18.2 Attach the EtCO

18.3 On the Novametrix

Turn the selector switch to MONITOR mode.

(For AED units, turn the selector switch to ON and select Manual mode.)

simulator

to the M Series input connections.

Simulator, set SENSOR

LOCATION to REF CELL.

CO2 SENSOR WARMUP message displays. Note: You may need to wait up to 5 minutes for the warm-up

message to disappear. If the message REPLACE CO

Novametrix Simulator Cable. Note that the message ZEROING CO

an additional 20 seconds. Automatic zeroing will occur if the unit had not been zeroed at the time of its last use.

The EtCO Note that you may need to wait up to 10 seconds for the unit to

stabilize.

reading of 36-40 mmHg displays on the monitor.

SENSOR displays, reinsert the

SENSOR may display for

M Series Service Manual

Do this... Observe this... Pass/Fail

18.4 On the Novametrix Simulator, set SENSOR LOCATION to AA CELL. Set% CO

Set CO

to 10.

mode to

The EtCO

reading of 74-84 mmHg appears on the M Series

display. Note that you may need to wait up to 10 seconds for the unit to stabilize.

RESPIRATION.

18.5 On the Novametrix Simulator, set% CO

to 5.

The EtCO monitor.

reading of 34-42 mmHg displays on the M Series

Note that you may need to wait up to 10 seconds for the unit to stabilize. The Respiration Rate (RR) of 22-24 displays on the M Series monitor. Press WAVE 2 softkey. The EtCO

displays. Press RECORDER button. The EtCO Note that the CO millimeters per second scale.

Record your results on the Maintenance Tests Checklist.

waveform

waveform prints.

waveform is displayed and printed at 12.5

M Series Service Manual

Overview

This chapter describes the most common technical problems that biomedical technicians experience when checking the M Series during routine maintenance or when there is a malfunction of the unit. It also contains a list of error messages that users may see if the unit is not operating properly.

This chapter contains the following:

• Troubleshooting tables for ECG Leads Off Messages and Monitor Displays

• Zoll M Series Error Messages

Chapter 2

Troubleshooting

If the problems you encounter are not listed below, call ZOLL Medical Corporation’s Technical Service Department for further assistance. (See page iii for contact information.)

M Series Service Manual

Troubleshooting

The following tables show the most common troubleshooting issues and their solutions. First, attempt to solve the problem with “Recommended User Action.” If these steps do not solve the problem, follow

the steps listed in the “Recommended Technical Action” column.

Reported Problem Recommended User Action Recommended Technical Action

ECG LEAD OFF message displays. (3, 5, 12 lead cable)

• Check preparation of ECG electrode site by

cleaning the site, lightly abrading the patient’s skin and/or clipping the patient’s hair at the electrode site.

• If electrode gels are dry, replace electrodes with

new ones from a freshly opened package.

• Verify that all leads are attached.

• Set monitor to another lead.

• Verify that the electrodes have not exceeded their

expiration date.

• T ry to reproduce the problem using

a simulator.

• Inspect the ECG cables looking for

corrosion or broken connector pins.

• Check the cable for intermittent

connections by flexing the cable at the yoke and snap connectors.

• Check the cable connection to the

defibrillator.

• Inspect the ECG input connector

and its pins. Replace it, if necessary.

• Inspect the ECG cable connection

to the system board.

• Inspect the system board ECG

shielding.

• Remove and replace the system

board.

M Series Service Manual

Reported Problem Recommended User Action Recommended Technical Action

V LEADS OFF message displays.

CHECK P ADS/POOR PAD CONTACT message displays.

• If the user is not using V leads, attach V lead

connector terminator plug to the cable’s V lead connector.

• If a V1 lead wire metal snap comes in contact with

the patient’s skin, then the system will show all V leads as OFF.

• Remove V1 leads and others away from the

patient. Turn off the unit and wait ten seconds before turning it back on.

• Remove and reinsert PADS connector into the

universal cable.

• Check for damaged defibrillator pads, wires and or

connector.

• Check for dried out or expired defibrillator pads.

• Clip (not shave) the patient’s hair and wipe pad

contact area dry.

• Connec t the cable to the test plug. The DEFIB PAD

SHORT message displays to indicate that the cable is functioning properly.

• If the DEFIB PAD SHORT message displays, then

check the connections of the pads to the patient and to the defibrillator cable.

• If the DEFIB PAD SHORT message does not

display, remove the defibrillator from service.

• Connect universal cable to the

shorting plug. The DEFIB PAD SHORT message should display, when you SELECT PADS. If the message does not display , then:

• Try another universal cable.

• Chec k the cable from the universal

cable connector to the High Voltage Module.

• Chec k the cable from the High

Voltage Module to the system board.

• Remove and replace the High

Voltage Module.

• Remove and replace the system

board.

• Call ZOLL Technical Support for

assistance.

M Series Service Manual

Reported Problem Recommended User Action Recommended Technical Action

Flash or arcing under defibrillator pad.

Displayed HR not accurate. No artifact present.

• Avoiding using alcohol and betadine in and around

the treatment area because these skin preparations may lead to increased conductivity and/or bonding between the electrode’s adhesive and skin.

• Check for ge l droop. If the gel has leaked out of the

gel treatment area, replace the electrode.

• Ensure pads are coupling to the patient’s skin and

connected to the universal cable.

• Check for dried out gel on the defibrillator pad.

• Clip patient’s excessive hair. Do not shave hair.

• Check expiration date. Replace pad if date has

expired.

• Do not conduct chest compression through the

pads because the pads could be damaged leading to the possibility of arcing and skin burns.

• Apply the back electrode first. If the front electrode

is already in place when the patient is being maneuvered for placement on the back, the front may become partially lifted, possibly causing arching and skin burns.

Verify heart rate flashes with each QRS on display.

• Change lead selection.

• Change ECG size.

• Reposition ECG electrodes.

• Ensure that wet gel pads are stored

flat.

M Series Service Manual

Reported Problem Recommended User Action Recommended Technical Action

Displayed HR not accurate; artifact present.

• Reduce or eliminate ECG artifact due to

electrode or patient cable movement. Route cables so that they don’t pull on electrodes or swing excessively .

• Ensure patient is motionless.

• Check for possible excessive radio frequency

interference.

• Verify a good connection of electrodes to the

patient.

• Prepare the patient’s skin prior to the electrode

attachment.

• Move patient cables away from other electrical

equipment, especially any RFI source.

• Ensure ECG cable fits snugly in unit.

• Change ECG cable.

• Replace/reposition ECG electrodes.

Wandering baseline. See “Displayed HR not accurate.” above. Note that

in 90% of electrode issues, size and lead changes don’t help.

Electronic interference. Check for possible excessive radio frequency

interference. Move patient cables away from other electrical equipment.

• Chec k for contamination on snaps.

Ensure springs are intact.

• Check for intermittent ECG patient

cable or connector wiring.

• Replace ECG input connector.

• Replace ECG connector to the

system board cable.

• Replace system board.

Same as above example.

• Turn off sources of excessive RFI.

• Move M Series unit away from

RFI source.

M Series Service Manual

Zoll M Series Error Messages

The following is a list of Zoll M Series error messages that may appear on your display. The “User Advisory” column informs you about an action in progress or provides feedback on a user correctable situation that typically does not require further technical support. The “T echnical Action” column describes what you as a technician can do to correct the situation. Note that these messages will sometimes overlap part of the waveform display.

First, attempt to clear the message by turning the Selector Switch to OFF for ten seconds, then back to the desired operating mode. If the fault persists, call ZOLL Technical Service.

Error Message Explanation

200J MAX BIPHASIC User attempted to set defibrillation energy >200J on

Biphasic Unit. No higher energy is available.

50J MAX Energy < 50J for internal paddles. No higher energy

is available.

ADJUST ECG Unit is in sync mode and heart rate is < 20 BPM.

Or, QRS size set too small for proper synchronization.

ANALYSIS HALTED • ECG analysis halted due to user interaction such

as:

• Lead/size change

• Analyze button was pressed again

• Impedance fault

• Charging error detected in auto defib mode

ANALYSIS RESTARTED This is a user prompt issued simultaneously with

ECG TOO LARGE or ECG TOO SMALL. Device detected ECG signals out of range, automatically adjusted ECG size and is now restarting its shockable rhythm analysis sequence.

User Advisory

Technical Action

M Series Service Manual

Error Message Explanation

AUDIO FAULT 136 Audio DSP hardware error. Replace audio board.

AUDIO NOT RECORDING

AUDIO QUEUE FULL Indicates that the audio output queue is full.

BATT HIGH CURRENT Battery is charged and battery current is >.1 A or:

BATT HIGH VOLTAGE Battery voltage > 15.5 v. Replace battery and or

Audio is not recording. Install PCMCIA card.

Additional voice prompts can't be queued at this time.

Battery is not charged and battery current is > 1.6 A.

User Advisory

Technical Action

Replace system board.Turn unit off and back on again.

Replace system board. None.

Unplug from A/C. Remove the battery for 20 seconds. Reconnect all above. If the problem persists, replace battery and or charger.

charger

BATT LOW CURRENT Battery is not charged and battery current is <.35 A. Replace battery and or

charger.

BATT LOW VOLTAGE Battery voltage < 9.5 v. Replace battery and or

charger.

BATT OVERCHARGE Charger on for > 4 hours. Replace battery and or

charger.

M Series Service Manual

Error Message Explanation

BRIDGE SHORT Current higher than expected was detected during the

Biphasic bridge test or immediately following a discharge.

BRIDGE TEST FAILED Biphasic module not operating properly while

charging.

User Advisory

Technical Action

Ensure pads/paddles are used properly .

Attempt to clear the message by turning the Selector switch to off then back to the desired operating modes.

Replace bridge or high voltage module.

Charge again.

Attempt to clear the message by turning the Selector switch to OFF , then back to the desired operating mode.

Replace bridge or high voltage module.

CABLE FAULT (Auto defib mode only.)

Incorrect A/D reading for paddle ID (similar to PADDLE FAULT).

CANNOT CHARGE Cannot charge when charge button pressed. Replace high voltage

REPLACE CARD Write errors during manual or semi-automated

modes.

Replace paddle set, universal cable and/or system board.

module or capacitor. May have configuration

card installed or write protection on.

M Series Service Manual

Error Message Explanation

CARD FULL Memory Card Full. CHECK CO2 SENSOR EtCO2 Sensor is unplugged or defective.

CHECK CO

CHECK MEMORY CARD No card detected during manual or semi-automated

CHECK PADS Message displayed in conjunction with either POOR

ADAPTER Airway adapter is removed, occluded or adapter

zeroing needs to be performed or was performed incorrectly.

modes.

PAD CONTACT or DEFIB PAD SHORT.

User Advisory

Technical Action

Check that sensor cable is plugged in and seated properly. Check that sensor is not exposed to excessive heat. If problem persists, replace the sensor.

Replace/Clean airway adapter. Zeroing performed automatically.

Ensure pads are coupled to patient. Check /replace pads and universal cable. Replace system board.

CHECK PATIENT Background ECG analysis detects shockable rhythm. CHECK PULSE Alternate message for NO SHOCK ADVISED

message.Message also shown after delivering third shock when auto analyze 3 times option is enabled.

CHECK RECORDER Produced when paper tray is empty, paper jams or

recorder door is opened.

Replace paper sensor board, system interconnect board, and/or system board.

M Series Service Manual

Error Message Explanation

CHECK SPO2 SITE Low or no perfusion in monitored finger or toe. CHECK SPO2 SENSOR Reposition SpO2 sensor on patient. CLOCK FAULT 11 Real time clock oscillator failure. Replace system board.

CLOCK FAULT 12 Real time clock back-up power supply failure. Found

oscillator stopped at power-up, but oscillator now running when the system is running. (Oscillator only runs when main power is applied).

CLOCK FAULT 13 One of the set time units (seconds, minutes, year,

etc.) is out of range.

COMM ERROR No or invalid communication from the EtCO

module.

SENSOR WARM UP EtCO2 Sensor warming up.

CONFIRM MANUAL MODE

Displayed when manual mode is entered. Alerts user to confirm that manual mode is desired.

User Advisory

Technical Action

Replace system board.

Replace EtCO and or system board.

W ait for sensor to warm up. This process takes up to approximately one minute.

module

DEFIB DISABLED User prompt issued simultaneously with other faults

if defib is disabled.

DEFIB FAULT 71 More than 50 internal dumps occurred in less than 20

minutes.

Possible configuration problem. Replace high voltage module. Call ZOLL Technical Support.

Turn the unit to OFF and back on. If fault persists, replace high voltage module.

M Series Service Manual

Error Message Explanation

DEFIB FAULT 72 General defib error. Turn the unit to OFF

DEFIB FAULT 76 Capacitor voltage too high for selected energy. Replace high voltage

DEFIB FAULT 77 Capacitor voltage > than absolute rated max. Replace high voltage

DEFIB FAULT 78 Unable to charge defib cap. Replace high voltage

DEFIB FAULT 79 Defibrillator charging too slowly. Replace high voltage

DEFIB FAULT 80 4 defibrillator faults detected within 20 second

period.

DEFIB FAULT 81 Discharge switch in undefined state. Replace high voltage

User Advisory

Technical Action

and back on. If fault persists, replace high voltage module.

module or capacitor.

module or capacitor. Replace high voltage

module or capacitor.

DEFIB FAULT 84 “Upper” discharge transistor shorted (measured via

applicable A/D channel).

DEFIB FAULT 85 “Lower” discharge transis tor shorted (measured via

applicable A/D channel).

DEFIB FAULT 86 One discharge switch closed during power up test. Replace paddles,

DEFIB FAULT 87 Both discharge switches closed during power up test. Replace paddles,

Replace high voltage module.

control board or system board.

M Series Service Manual

Error Message Explanation

DEFIB FAULT 94 Processor fault causing safety monitor port to be

non-functional.

DEFIB FAULT 95 Safe or shutdown line is not functional. Replace high voltage

DEFIB FAULT 96 XPATREL or XPAT_ENABLE is faulted or one of

the discharge transistors has shorted.

DEFIB FAULT 108 VMON voltage is less than the target energy during

charging.

DEFIB FAULT 109 Defib capacitor voltage is greater than selected

energy when defibrillator is charging or ready.

DEFIB FAULT 111 Defib capacitor voltage has exceeded the absolute

maximum acceptable voltage.

DEFIB NOT CHARGED Discharge button is pressed but the unit is not

charged.

User Advisory

Technical Action

Replace system board, high voltage module or capacitor.

module. Replace high voltage

module or capacitor. Replace high voltage

module, capacitor, and or system board.

DEFIB PAD SHORT Measured impedance between high voltage leads of

MFC.

DISABLE SYNC Sync mode active when analyze pressed in defib. DISCHARGE FAULT Defib capacitor voltage is not decreasing. Replace high voltage

Ensure pads are coupled to patient. Check /replace pads or universal cable. Replace system board.

module, capacitor, and/ or system board.

M Series Service Manual

Error Message Explanation

ECG FAULT 4 Communication fault between ECG processor and

main processor.

ECG FAULT 5 ECU RAM test failure, or ROM checksum test

failure.

ECG LEAD OFF One or more ECG leads are not properly connected

when leads are selected as input.

ECG TOO LARGE ECG signal too large for accurate shockable rhythm

analysis.

ECG TOO SMALL ECG signal too small for accurate shockable rhythm

analysis.

ECG V1 LEAD OFF Chest lead V1 is not properly att ach ed to pati ent.

User Advisory

Technical Action

Turn off unit and then turn on to reset. If fault persists, replace system board.

Check cable and patient connection. Change electrodes. Prepare patient’s skin.

Reduce ECG size.

Increase ECG size.

Reattach V lead. Check cable.

ECG V2 LEAD OFF Chest lead V2 is not properly att ach ed to pati ent.

ECG V3 LEAD OFF Chest lead V3 is not properly att ach ed to pati ent.

ECG V4 LEAD OFF Chest lead V4 is not properly att ach ed to pati ent.

ECG V5 LEAD OFF Chest lead V5 is not properly att ach ed to pati ent.

Reattach V lead. Check cable.

M Series Service Manual

Error Message Explanation

ECG V6 LEAD OFF Chest lead V6 is not properly att ach ed to pati ent.

ENTER ACCESS CODE Manual mode access code needed.

ERASING REPORT Summary report being erased. ECU CRC FAULT Invalid ECG samples detected over a one second

period.

EtCO2 COM ERROR No or invalid communication from EtCO2 module. Return unit for service

FAX DIALING Preparation for sending fax. FAX DONE Transmission complete. FAX PREPARING Preparing fax for transmission.

User Advisory

Technical Action

Reattach V lead. Check cable.

Enter access code to enter manual mode with AED.

Turn off unit and then turn on to reset. If fault persists, replace system board.

to ZOLL Technical Service Department.

FAX SENDING Transmitting fax. INSERT CARD

Check memory card LOW BATTERY Low battery.

NO QRS DETECT Unit is in sync mode and heart rate is < 20 BPM or

No card installed in unit during manual or semiautomated modes.

QRS amplitude is too low for proper synchronization.

Replace battery or plug into AC power. Replace charger.

Increase ECG size and/ or change lead.

M Series Service Manual

Error Message Explanation

NO SHOCK ADV No shock advised. Advisory message when analysis

finds non-shockable rhythm.

NOISY ECG Number of noisy analysis intervals exceeds

threshold.

OPEN AIR DISCHARGE Cap voltage too high after discharge attempt, e.g.,

full energy discharge did not occur.

PACER DISABLED User prompt issued simultaneously with other pace

faults if pacing is disabled.

PACER FAULT 115 Flyback pulse width control circuit is not under

proper control of the processor and gate array.

PACER FAULT 116 Failure to detect XPACE_ON. Replace high voltage

User Advisory

Technical Action

Stop all patient movement. Check connections. Press Analyze button again.

Replace paddles, and, or high voltage module and system board.

Replace high voltage module or system board.

Replace high voltage module, capacitor, or system board.

module, capacitor, and/ or system board.

PACER FAULT 117 Pace relay is stuck closed. Replace high voltage

module, capacitor, and/ or system board.

PACER FAULT 121 During pace, the pace pulse width <30ms or >50ms. Replace high voltage

module, or system board.

PACER FAULT 122 Pace current is more than 15mA above and below

selected value.

Replace high voltage module, or system board.

M Series Service Manual

Error Message Explanation

PACER FAULT 123 Measured pace rate is too fast compared to selected

rate.

PACER FAULT 126 Issued in conjunction with message 122. Pace

current is more than 15mA and below selected value.

PADDLE FAULT Cannot detect type of accessory attached to the

universal cable.

PERFORM CPR Advisory message in AED auto defib mode. PLACE ON ZERO CELL EtCO2 sensor cable plugged into unit for the first

time. Zeroing error or probe drift error detected.

POOR LEAD CONTACT One or more ECG leads are poorly connected or not

connected to patient. (User configurable.)

User Advisory

Technical Action

Replace high voltage module or system board.

Replace high voltage module.

Replace paddles, internal paddles, system board, high voltage module and/or universal cable.

Zero sensor. Replace sensor. Return to ZOLL for service.

Check electrode attachment to patient, cable connector to electrode, cable to unit connector. Broken unit.

POOR PAD CONTACT Electrode impedance exceeds threshold. Ensure pads are

coupled to patient. Check /replace pads or universal cable. Check impedance circuit calibration. Replace system board.

PRESS ANALYZE Alternate message for check patient prompt.

M Series Service Manual

Error Message Explanation

PRESS CHARGE Advisory message in conjunction with shock

advised.

PRESS SHOCK Prompt issued in AED auto defib mode when defib is

charged (ready).

RECORDER FAULT 142 Strip chart system error. Check paper tray and

RECORDER FAULT 143 Strip chart failed power-up echo test.

Communications error.

RECORDER FAULT 147 Strip chart printhead over temperature. Check paper tray and

User Advisory

Technical Action

paper path. Replace the print head, system interconnect board and or the system board.

Check paper tray and paper path. Replace the system interconnect board and/or the system board. Turn unit off and back on again.

paper path. Replace the print head, system interconnect board and/ or the system board.

RELEASE BUTTONS Simultaneous external paddle button presses

detected before unit reached full defib charge (ready state).

RELEASE SHOCK Discharge switch(es) closed when pressing charge

button. Discharge button pressed before defib reached ready state.

REPLACE BATTERY Battery voltage is less than absolute minimum.

Shutdown imminent.

Release buttons.

Release shock button. Check paddles. Replace controls board.

Replace with charged battery.

M Series Service Manual

Error Message Explanation

REPLACE EtCO SENSOR

REPORT FULL Summary report memory full. REPORT HALTED Summary report stops printing unexpectedly. Turn unit off and then

RESERVED 1 The watchdog timer is not functional in the unit. Turn off unit and then

RETRY ANALYSIS Advisory message in conjunction with noisy ECG.

SELECT 30J FOR TEST Attempt to run a self test at an energy other than 30J. SELECT DEFIB MODE Analyze button pressed in pace or monitor mode.

SENSOR WARM UP message displays for

EtC0

more than five minutes. Sensor defective.

Analysis halted.

User Advisory

Technical Action

Replace sensor cable.

Erase summary report.

back on again. Print Summary again. If fault persists, replace system board.

turn on to reset. If fault persists, replace system board.

SELECT LIMB LEADS Paddles or augmented ECG leads selected when

continuous analysis active or started.

SELECT PADS Lead I, II, or III selected when analyze pressed. SET CLOCK Real time clock failure: invalid date or time. Set date and time and/

SET PACE mA Multiple copy errors are the product of intended

software or memory errors. If error reoccurs other than on entering pace the first time or after more than 10 minutes in other mode, the unit could be broken.

Select limb leads I, II, III or MFE

or replace system board.

Set pace current. If broken, replace system board.

M Series Service Manual

Error Message Explanation

SET PACE RATE Multiple copy errors are the product of intended

software or memory errors. Multiple copies of pace rate don't match. If error persists, unit could be broken

SHOCK ADVISED Advisory message when analysis finds a shockable

rhythm.

SpO2 AMBIENT LIGHT Ambient light is too bright. Shield sensor from

SpO2 COMM ERR No transmissions from SpO2unit received.

Communication error or no communication from Sp0

module.

SpO2 PULSE SEARCH Pulse search in progress. SpO2 SENSOR F AULT 1 Defective sensor. Replace Sp02 sensor.

User Advisory

Technical Action

Set pace rate. If broken, replace system board.

ambient light. Replace Sp0

sensor. Replace

module

Sp0

Replace Sp02 module and/or system board.

SpO2 SENSOR FAULT 5 Unrecognized sensor. Replace Sp02 sensor.

STAND CLEAR (Auto defib mode only.) Singl e anal ysis mode just

turned on and defib idle. Patient rhythm is being analyzed.

SYSTEM FAULT 2 MCU ROM checksum test failure or MCU RAM test

failure.

Turn off unit and then turn on to reset. If fault persists, replace system board.

M Series Service Manual

Error Message Explanation

SYSTEM FAULT 5 ECU RAM test failure or ROM checksum test

failure.

SYSTEM FAULT 6 No communications received from ECU for 4

seconds.

SYSTEM FAULT 7 The A/D converter is not performing conversions in

a timely manner.

SYSTEM FAULT 36 P1MON is less than 412 counts or greater than 612

A/D counts. Pace/defib is disabled as long as

condition exits. SYSTEM FAULT 37 Disable pace/defib and MFE monitoring. Replace system board. SYSTEM FAULT 38 Failu re to shutdown after “shutdown order” is

written to the RTC. TEST FAILED MCU performed ipeak test (defib peak current) and

unit failed during 30J self test.

User Advisory

Technical Action

Turn off unit and then turn on to reset. If fault persists, replace system board.

Replace system board.

Replace universal cable, paddles or high voltage module, capacitor, or system board.

TEST OK MCU performed ipeak test (defib peak current) and

unit passed 30J self test. USE PADDLE DISCHG Front Panel discharge button is pressed when either

external paddles or internal spoons with discharge

buttons are connected.

M Series Service Manual

Error Message Explanation

USE PADS (AUTO DEFIB MODE ONLY.)

Attempt to defib with paddles in auto defib (AED)

mode. Defib only allowed using PADS in AED

modes. USE PADS TO PACE External paddles detected in pace mode.

USE ROOM AIR ADAPTER

USER SETUP REQ Both copies of stored cal/config data are bad or have

VF ALARMS OFF VF alarms disabled in pace mode or when paddles

VX LEADS OFF V lead not properly attached to patient. “X” denotes

ZERO CO ZERO CO

SENSOR New EtCO2 sensor needs to be zero calibrated.

ADAPTER New EtCO2 airway adapter needs to be zero

Adapter zeroing started with EtCO2 in the adapter or

the adapter is on the REF or “0” cell.

never been programmed.

are selected as leads.

lead number.

calibrated.

User Advisory

Technical Action

Place CO2 sensor on adapter in room air.

Perform configuration setup.

Reattach V lead.

Zero EtCO2 sensor. Zero EtCO2 adapter.

M Series Service Manual

Overview

This chapter provides instructions on how to disassemble and reassemble the M Series unit, and includes the following sections:

• Required Equipment

• Parts That May Need Replacing After Disassembly

• Safety Precautions

• Overview of Modules

• 1. Removing the ZIF Keeper

Chapter 3

Disassembly Procedures

• 2. Removing the Front Panel

• 2A. Removing the Display

• 2B. Removing the Control Board

• 3. Removing the Upper Housing Assembly

• 4. Removing the System Board Assembly

• 5. Removing the Battery Interconnect Board Assembly

• 6. Removing the High Voltage/Charger Assembly

• 7. Removing the High Voltage Module Assembly

• 8. Removing the High Voltage Capacitor Assembly

• 9. Removing the System Interconnect Board

• 10. Removing the Printer/Recorder Motor

• 11. Removing the Lower Housing Assembly

• 12. Removing the Print Head Assembly

M Series Service Manual

• 13. Removing the PCMCIA Card Slot Assembly

• 14. Removing the Paddle Release Latch

Required Equipment

• No. 1 Phillips screwdriver.

• No. 2 Phillips screwdriver.

• Exacto-knife.

• Orange wooden stick. (Available from H.A. Stiles: 1-800-447-8537)

• 90° dental pick.

• Needle nose pliers.

• Kapton tape.

• 3M copper adhesive tape, or equivalent.

• 1/2” nut driver.

• Large diagonal cutters.

• Strong glue, such as Loctite 420 or equivalent.

• Loctite needle tip dispenser.

Parts That May Need Replacing After Disassembly

If you are removing the Control Board from the Front Panel, you need to have :

• Main Selector knob replacement (ZOLL Part Number 9310-0521)

• Pacer/Output/Rate knob replacement (ZOLL Part Number 9310-0520)

If you are removing the Battery Interconnect Board, you may need to replace it with a new one, using ZOLL Part Number 9301-0302, if connectors have been UV welded as in older M Series models.

M Series Service Manual

Safety Precautions

WARNING! SHOCK HAZARD!

CAUTION TAKE THE NECESSARY PRECAUTIONS TO GUARD AGAINST SHOCK OR INJURY BEFORE YOU CONDUCT

DEFIBRILLATOR TESTS OR REPAIRS.

• Only properly trained technicians should service the unit.

• The unit can contain deadly voltages even if the unit is turned off.

• Make sure to discharge the unit before working with it.

• Make sure you take the necessary precautions when working with static sensitive units. For example, you must wear a conductive wrist strap (which touches your skin) connected to a grounding mat and to the earth ground. Y ou must remove the wrist strap when you discharge high voltage or when you are working on energized equipment.

M Series Service Manual

Overview of Modules

The M Series unit contains 14 modules, as shown below.

Isolated Power Supply with EtCO

System Interconnect Board Battery Interconnect Board Assembly with 3 Battery

SpO2 module with bracket for EtCO

Pin Gaskets

System Board Assembly

AC Charger Assembly

M Series Service Manual

Control Board (from Front Panel) High Voltage Module Assembly High Voltage Capacitor Assembly

PCMCIA Card Slot Recorder Motor SpO

Isolated Power Supply for SpO

Module Biphasic Capacitor and Bridge Assembly

Module (without bracket)

M Series Service Manual

1. Removing the ZIF Keeper

Tools Required

• Orange stick

Note: It is important to know this procedure before you start disassembling the unit. Removing the ZIF (Zero Insertion Force) Keeper incorrectly can damage the unit’s system board.

To reinstall the ZIF Keeper:

1. Place the ZIF Keeper over the laminate cable and insert the flex cable into the connector. Latch the connector.

Step 1: The connector must be facing you as shown in the diagram.

Latch

Step 2: Angle and lift up the right end of the ZIF Keeper from the connector and the board. Slide the Keeper approximately 1 mm to the left, then gently lift the left side to clear the connector.

Step 3: Gently pull the ZIF (Zero Insertion Force) Keeper over the laminate cable and rotate the latch upwards.

2. Lower the left end of the ZIF Keeper over the connector end until it touches the printed wire assembly (PWBA). The other end of the connector should be angled.

3. Press the end of the ZIF Keeper down over the end of the connector. Be careful that the ZIF Keeper snaps over the end of the connector.

Keeper

Lift here

Latch

M Series Service Manual

2. Removing the Front Panel

Tools Required

• No. 2 Phillips screwdriver

• Orange stick

To reinstall the Front Panel:

1. Reinstall the laminate cable first with the black band facing up and towards the system circuit board.

2. Reconnect the multi-wire cable from the display.

3. Reverse steps 1, 2, and 3 above to reinstall the front panel.

Step 1: Remove the battery from the battery well and place it in front of the unit.

Step 3: Place your thumbs in the main selector switch cup and push up on the front panel to release the panel from the unit. After the front panel is removed, use the battery as a support for the panel. Do not use the main selector switch as

point of leverage.

Step 2: Rotate unit on to its back side. Remove

the two Phillips head screws located on the left and right sides on the bottom of the unit.

Step 4: Disconnect the multi-wire cable from the system board by gently pulling the beige connector by its sides towards the front of the unit. Remove the ZIF keeper from the laminated ribbon cable and then disconnect it. Lift the right side first with the unit facing you.

Multi-wire cabl

M Series Service Manual

2A.

Removing the Display

Tools Required

• No. 2 Phillips Screwdriver

• Exacto-Knife

• 3M Copper Adhesive Tape

To reinstall the Display

Reverse steps 1 through 3.

Step 1: Remove the grounding copper tape from the outer display shield.

Step 3: Remove the Video Display Assembly.

Step 2: Remove the V ideo Display Assembly by

rotating the display upwards from the lower portion of the display panel assembly.

video display assembly

M Series Service Manual

2B.

Removing the Control B o a r d

Tools Required

• No. 2 Phillips Screwdriver

• Orange (Wooden) S tick

• 1/2” Nut Driver

• Large Diagonal Cutters

• Strong Glue, such as Loctite 420 or equivalent

Step 1: (Caution: The knob will be damaged during this step.) Gently insert the cutters at the edge of the main selector knob and pry outward until the knob is removed. Then carefully remove the 1/2” nuts without damaging the Selector Switch.

Step 3: Rock the foam packaging back and forth from the control panel board to remove the foam.

Step 2: Gently insert the cutters at the edge of the pacer knobs and pry outward until the knobs are removed. Then carefully remove the 1/2” nuts without damaging the Pacer Switches and green pace cups.

Step 4: Remove the panel overlay circuit cable from the control board by lifting the side s of the lock lever located under the front of the control board. (See 1. Removing the ZIF Keeper.)

panel overlay circuit cable

Note: If you are removing the Control Board from the Front Panel you may need to replace the following parts:

• Main Selector knob replacement (ZOLL Part Number 9310-0521)

• Pacer Output/Rate knob replacement (ZOLL Part Number 9310-0520).

wooden stick

foam packaging

M Series Service Manual

2B.

Removing the Control Board

(Continued)

To reinstall the Control Board

1.Set the dip switches and attach the SHOCK

button LED actuator.

2.Place a small amount of strong glue on the

end of the mode selector switch. Slide the replacement knob on. After the glue dries, rotate the selector knob to ensure that it is properly glued in place.

Step 5: Disconnect the speaker microphone cable. Remove the Control Panel Board from the Front Panel Assembly. Important: Note the position of the dip switches because they must be in the same position for reinstallation.

Step 6: Remove the 50 pin laminate cable from the control board. See 1.0 Removing the ZIF

Keeper.

50 pin laminate cable

3.Replace the Pacer Output/Rate knobs, if

applicable.

M Series Service Manual

3. Removing the Upper Housing Assembly

Tool Required

• No. 1 and 2 Phillips screwdriver

Set-up

Remove Front Panel (See Step 2.)

1. Remove the two screws securing the universal cable.

2. Do not lose the O-ring when removing the universal cable.

3. Remove the three Phillips screws in the front of the Upper Housing.

Step 1: Remove two screws from the back side of the Upper Housing Assembly and three screws from the front.

Step 3: Make sure that the rubber gaskets are covering the battery contact pins. If the gaskets are still seated in the housing, remove and place them onto the contact pins. Before installing the Upper Housing ensure that the battery pin gaskets are set properly.

battery pin gasket

Step 2: Secure lower housing to the table by pressing downward in the paddle well. Using the carry handle, lift the Upper Housing upward.

To reinstall the Upper Housing Assembly, reverse the above steps.

Ensure the battery pin gaskets are properly set.

M Series Service Manual

4. Removing the System Board Assembly

Tools Required

• #1 and #2 Phillips Screwdriver

• Grounding Mat

• Grounding Wrist Strap

2. Remove the Front Panel Assembly.

3. Remove the Upper Housing Assembly.

To reinstall the System Board Assembly, reverse the steps.

• Needle Nose Pliers

• Orange Stick

WARNING! You can damage the hardware of the unit. You must use ESD grounding before you handle any printed circuit boards on the unit.

Setup

Before you begin this procedure, make sure you are grounded.

1. Know or review 1.0 Removing the ZIF Keeper procedure.

M Series Service Manual

Step 1: Using needle nose pliers, remove left and right multi-wire cables on the back side of the system board. To avoid damage to the cable, do not pull the wires. Hold system board securely with one hand. DO NOT let it fall forward to prevent excess tension on the unit’s wires.

Step 3: Lower the system board with one hand and remove the battery interconnect laminate cable from the center of the system board. (See 1.

Removing the ZIF Keeper.)

battery interconnect laminate cable

Step 2: Remove the two wire speaker cable (if applicable).

Step 4: Gently roll the system board forward and rest it on the battery.

M Series Service Manual

Step 5: Remove the ZIF Keeper. (See 1. Removing the ZIF Keeper.)

Step 7: For M Series units with the SpO SpO

with EtCO2 only: Remove the 20 pin power

cable by lifting the slide locking tab upwards.

and/or

Step 6: For Biphasic M Series units only: Remove the 20 pin power cable by lifting the slide locking tab upwards.

M Series Service Manual

5. Removing the Battery Interconn ect Board Assembly

Tools Required

• Orange stick

Setup

1. Remove the Front Panel Assembly.

Step 1: Identify the Battery Interconnect Board. Step 2: Remove the wide laminate cable from the

high voltage module connector by lifting the cable vertically.

Step 3: Remove the push pin and small insert collar.

Step 4: Rotate the unit around so that the rear of the unit faces you. Rotate the Battery Interconnect Board upwards toward the front of the device. Hold the board vertically while removing the 10pin laminate cable from connectors by lifting the connector lock.

charger cable

10 pin laminate cable

2. Remove the Upper Housing Assembly

3. Remove the System Board Battery Cable.

To reinstall the Battery Interconnect Board, reverse the steps.

NOTEFor Step 4, remember to carefully remove

the cable from the Charger Assembly when disassembling and reinstalling it.

M Series Service Manual

6. Removing the High Voltage/ Charger Assembly

Tools Required

• #2 Phillips screwdriver

• Orange stick

• Small needle nose pliers

DO NOT SHORT THE TERMINAL ENDS OF THE CAPACITOR. Refer to Section 8, Step 2.

Setup

1. Remove the Front Panel Assembly.

2. Remove the Upper Housing Assembly.

3. Remove the System Board.

4. Remove the Battery Interconnect Board.

To reinstall the High Voltage Charger Assembly, reverse the steps.

WARNING! This unit may contain lethal voltages. You MUST completely discharge the high voltage capacitor before removing from unit.

M Series Service Manual

Step 1: Remove the High Voltage/Charger Assembly from the main housing by lifting the High Voltage/Charger Assembly upwards and rotating it towards the back of the unit.

Step 3: Depress the lever on the High Voltage Cable to remove it from the mounting panel. Cut the tie wrap attached to the mounting bracket that secures the cables.

Step 2: Set the Assembly on the table. Pull apart the High Voltage Module from the Charger Assembly . These three components are referred to as the “Module Cluster”.

High voltage capacitor

Charger assembly

Step 4: (SpO module from the Isolated Power Supply, remove the Mylar supply are one assembly at the same location.

units only) To remove the SpO2

® tape. EtCO

module and power

High voltage module

high voltage cable

M Series Service Manual

Step 5: Lift the SpO2 module straight up from the foam and disconnect the ribbon cable from the Isolated Power Supply.

Step 7: (Biphasic units only) Disconnect the Molex connector from the biphasic module.

Molex connector

Step 6: (Biphasic units only) Disconnect the biphasic defibrillator capacitor from the rear panel connector.

Biphasic defibrillator capacitor

Step 8: (EtCO connector by gently lifting the connector away from the back panel. To remove the EtCO isolated power supply, refer to Step 5.

units only) Remove the EtCO

and

Biphasic module

EtCO

connector

M Series Service Manual

7. Removing the High Voltage Module Assembly

Tools Required

• #2 Phillips screwdriver

• Exacto-Knife

WARNING! This unit may contain lethal voltages. You must completely discharge the high voltage capacitor by changing the energy selection during the charge cycle of the defibrillator. Power off unit. Wait three minutes before disassembly.

5. Remove the High Voltage/Charger Assembly.

To reinstall the High Voltage Module Assembly, reverse the steps.

DO NOT SHORT THE TERMINAL ENDS OF THE CAPACITOR. Refer to Section 8, Step 2.

Setup

1. Remove the Front Panel Assembly.

2. Remove the Upper Housing Assembly.

3. Remove the System Board.

4. Remove the Battery Interconnect Board.

M Series Service Manual

Step 1: Remove the signal cable from the High Voltage module.

Step 3: Separate the High Voltage Module from the foam.

Step 2: Remove the Kapton tape on the bottom of the foam surrounding the High Voltage Module.

M Series Service Manual

8. Removing the High Voltage Capacitor Assembly

Tools Required

• #2 Phillips screwdriver

• Exacto-Knife

•Mylar

Setup

1. Remove the Front Panel Assembly.

tape

To reinstall the High Voltage Capacitor Assembly, reverse the steps.

WARNING! This unit may contain lethal voltages. You MUST completely discharge the high voltage

capacitor before removing from unit. DO NOT SHORT THE TERMINAL ENDS OF THE CAPACITOR.

Step 1: Open the High Voltage Capacitor plastic isolator by lifting the

Step 3: When the capacitor voltage is at 0 VDC, disconnect the inductor wires and capacitor terminal wires.

Mylar tape.

Step 2: Bleed the excess voltage using a resistor with values of approximately 5 kohms, 25 watts for 10-20 seconds. Measure the voltage on the capacitor terminals.

2. Remove the Upper Housing Assembly.

3. Remove the System Board.

4. Remove the Battery Interconnect Board.

5. Remove the High Voltage Charger Assembly.

6. Lift the Capacitor Assembly upwards from the chassis. (The Capacitor Assembly is still connected to the High Voltage Module Assembly.)

M Series Service Manual

9. Removing the System Interconn ect Board

Tools Required

• #2 Phillips screwdriver

3. Install two screws.

4. Reconnect all the cables and reverse the steps.

Setup

1. Remove the Front Panel Assembly.

2. Remove the Upper Housing Assembly.

3. Remove the System Board.

4. Remove the Battery Interconnect Board.

5. Remove the High Voltage/Charger module.

6. Remove the clear plastic print head isolater.

7. Remove the motor cable, cable print head and paper sensor cable.

To reinstall the System Interconnect Board:

1. Install the laminate cables and keepers.

2. Ensure that the PCMCIA slots with gaskets

are located to the right rear of the board and seated properly.

M Series Service Manual

Step 1: Remove the clear plastic head isolater. Step 2: Remove two screws from each side of the

System Interconnect Board.

Step 3: Disconnect the cables and lift the System Interconnect Board out of the unit.

paper sensor cable

cable print head

motor cable

M Series Service Manual

To reinstall the Printer/Recorder Motor, reverse the steps.

10. Removing the Printer/ Recorder Motor

Tools Required

• #2 Phillips screwdriver

• Exacto-Knife

• Kapton tape

Setup

1. Remove the paper tray, pull out and press up on the locking tab at the rear of the tray.

2. Remove the Front Panel Assembly.

3. Remove the Upper Housing Assembly.

4. Remove the System Board.

5. Remove the Battery Interconnect Board.

6. Remove the High Voltage Module Assembly.

7. Remove the sensor, printhead and motor cables.

8. Remove the System Interconnect Board.

M Series Service Manual

Step 1: Using the needle nose pliers, carefully lift the spacer block upwards.

spacer block

cable

motor

Step 3: Lift the motor upward by prying on the motor bracket with the screwdriver.

Step 2: Remove the motor bracket mounting screw.

motor bracket

M Series Service Manual

11. Removing the Lower Housing Assembly

Tools Required

• #2 Phillips screwdriver

Setup

• Remove all power sources, such as the battery and power cord.

To reinstall the Lower House Assembly, reverse the steps.

Step 1: Remove the paper tray by pulling it out and pressing the locking tab upwards at the rear of the tray.

Step 3: Remove the remaining screws from the bottom of the unit.

Step 2: Remove the screw at the bottom of the unit to remove the PCMCIA FAX/Modem card’s plastic protector.

Step 4: Lift the lower housing assembly straight up and out from the unit

M Series Service Manual

12. Removing the Print Head Assembly

Tools Required

• #1 Phillips screwdriver

Setup

• Remove the Lower Housing Assembly.

To reinstall the Print Head Assembly, reverse the steps.

Step 1: Remove two screws from the paper tray guide and remove the paper tray guide.

Step 3: Remove the pivot pin for re-use.

print head

pivot pin

Step 2: Disconnect the ribbon cable from the print head.

print head

ribbon cable

M Series Service Manual

13. Removing the PCMCIA Card Slot Assembly

Tools Required

• #2 Phillips screwdriver

Setup

• Remove the Lower Housing.

To reinstall the PCMCIA card slot, reverse the step.

Step 1: Remove the two screws holding the card slot retainer. Lift up card slot assembly.

M Series Service Manual

14. Removing the Paddle Release Latch

Tools Required

• #2 Phillips screwdriver

• Exacto-Knife

• Upper Latch Seal (9330-0304)

Setup

Step 1: Using the Exacto Knife, remove the

adhesive seal on the unit’s chassis

Step 3: Gently push the screwdriver until the Paddle Release Latch is dislodged.

Step 2: Insert the screwdriver into the opening under the adhesive seal.

Step 4: Pull Paddle Release button away from the unit.

1. Remove the Front Panel Assembly.

2. Remove the Upper Housing Assembly.

To reinstall the Paddle Release Latch, reverse the steps.

M Series Service Manual

Zoll M Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual