Zoll M Service manual

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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. During such period ZOLL Medical Corporation 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, ZOLL Medical Corporation's regular service charges 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 Corporation; (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 PARTICULAR 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.

T A B L E O F C O N T E N T S

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
Overview ..............................................................................................................................................................................................	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 2 TROUBLESHOOTING ................................................................................................................................................	37
Overview ............................................................................................................................................................................................	37
Troubleshooting ..................................................................................................................................................................................	38
Zoll M Series Error Messages ............................................................................................................................................................	42
CHAPTER 3 DISASSEMBLY 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 5 FUNCTIONAL 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

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M Series Service Manual

Preface

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 Tests 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.

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 PowerCharger4x4 or compatible ZOLL Battery Charging/Testing unit.
	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.

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:

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

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.

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M Series Service Manual

Chapter 1

Maintenance Tests

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 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. SpO2 Monitor Test

•18. EtCO2 Monitor Test

Before You Begin the Maintenance Tests

•Assemble the tools or specialized testing equipment listed in the “Equipment You Need to Perform the Maintenance Tests” section shown below.

•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 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® 601 Pro Series International Safety Analyzer.

•Bio-Tek® Index 2PFE SpO2 Simulator or equivalent. (For SpO2 units only.)

•Novametrix Medical Systems, Inc. Capnostat Simulator TB1265/7100 or equivalent. (For EtCO2 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®software from Pinpoint Technologies, Version 1.5 or higher (no equivalent) or Zoll Data Control (ZDC) for DOS software, Version 5.5 or higher (no equivalent).

•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 Tests

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

•EtCO2 cable and sensor (if option is installed).

•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.)

M Series Service Manual

1.0 Physical Inspection of the Unit

Tools Needed	None.
Test Setup	None.

		Observe this...		Pass/Fail

		1.1	Housing	o	o
			Is the unit clean and undamaged?

		1.2	Does the unit show signs of excessive wear?	o	o

		1.3	Does the handle work properly?	o	o

		1.4	Does the recorder drawer open and close properly?	o	o

		1.5	Are input connectors clean and undamaged?	o	o

		1.6	Are there any cracks in the housing?	o	o

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

		1.8	Are there any loose housing parts?	o	o

		1.9	Do the paddle latches work properly?	o	o

		1.10	Paddles	o	o
			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?	o	o

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

		1.13	Cables	o	o
			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?	o	o

M Series Service Manual

Observe this...		Pass/Fail

1.15	Battery	o	o
	Is the ZOLL battery fully charged?

1.16	Is the battery seated in the battery well correctly?	o	o

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	Listen for 4 beep tones. PADS and MONITOR display on the	o	o
	MONITOR.	monitor.
	(For AED units, turn the	NOTE: PADS is a factory default setting.
	selector switch to ON and
	select Manual mode.)

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

2.3	Connect the 12 lead cable to	A 12 Lead cable will display PADS, I, II, III, AVR, AVL, AVF,	o	o	o
	unit and simulator. Press the	VI, V2, V3, V4, V4, V5, V6.
	LEAD button and select the
	lead for each of the 12 lead
	settings.

2.4	Set the simulator to NSR of	As you press the SIZE button five times (0.5, 1.0, 1.5, 2.0, 3.0),	o	o	o
	120 BPM. To check the size	note that the size of the ECG waveform appropriately changes on
	of the ECG waveform,	the display.
	press the SIZE button.

M Series Service Manual

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

2.5	Press the ALARM	Bell changes from disabled to enabled. If the alarm sounds, press	o	o	o
	SUSPEND button.	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.

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

2.7	Open the paper tray.	CHECK RECORDER message appears on the monitor.	o	o	o
	Press RECORDER button.

2.8	Close the paper tray.	Strip chart paper flows out of paper tray. Verify that the CHECK	o	o	o
	Press RECORDER button.	RECORDER message no longer displays.

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

2.10	Press the VOLUME	The volume bar graph displays.	o	o
	softkey.
	To increase the volume of	Audible beep when the QRS wave displays. The bar graph
	the beep, press the Inc.	increases on the display indicating an increase in volume. This
	softkey.	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.

2.11	To decrease the volume of	The bar graph decreases on the display indicating a decrease in	o	o
	the beep, press the Dec.	volume. The volume shuts off at the last bar; otherwise, the
	softkey.	volume is the same as originally set.

2.12	Press the CONTRAST	Contrast menu displays.	o	o
	button.

M Series Service Manual

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

2.13	(For LCD monitors only.)	Background light and characters display.			For LCD
	Press the CONTRAST	The contrast increases on the monitor display (LCD).	o	o	monitors
	button.	The brightness increases on the monitor display (EL).	o	o	o
	To increase the contrast of		o	o	o
	the display, press the Inc.	The bar graph increases on the display indicating an increase in	o	o	o
	softkey.	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.

2.14	To decrease the contrast of	The bar graph decreases on the display indicating a decrease in	o	o
	the display, press the Dec.	contrast (LCD) and brightness (EL). The display contrast and
	softkey.	brightness changes.

2.15	Press the SUMMARY	Summary menu displays on the monitor showing the summary	o	o	o
	button (if available).	report options.

2.16	Press the CODEMARKER	Code marker menu displays.	o	o	o
	button (if available).

2.17	Connect A/C current and	CHARGER ON indicator lights.	o	o	o
	install the battery. Turn the	The amber or green lights illuminate.
	unit off.	Note: If both lights flash ON/OFF, the unit is defective or no
		battery is installed.

2.18	If applicable, connect D/C	CHARGER ON indicator lights.	o	o	o
	current and install the	The amber or green lights illuminate.
	battery. Turn the unit off.	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.

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

2.20	Replace the battery and the	Note that the yellow charge light illuminates.	o	o
	turn unit on.

M Series Service Manual

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

2.21	Press the ANALYZE	SELECT DEFIB MODE message appears on the monitor. (For	o	o	o
	button (if available).	manual devices.)

2.22	Move the selector switch to	The display shows that the unit is charging. The SHOCK button	o	o	o
	DEFIB. Select 2J. Press the	lights when the unit is charged. Ready tone for DEFIB sounds.
	CHARGE button.

2.23	Press and hold the	Unit discharges internally and selected energy decrements to 1J.	o	o	o
	ENERGY SELECT down
	arrow.

2.24	Press and release the	The following energy amounts display incrementally 2, 3, 4, 5, 6,	o	o	o
	ENERGY SELECT up	7, 8, 9, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 360J (for DSW).
	arrow 19 times.	Biphasic: 1-10, 15, 20, 30, 50, 75, 100, 120, 150, 200J.

2.25	Press the CHARGE button.	Note the display shows the unit charged up to 360J (200J -	o	o	o
		Biphasic) and the SHOCK button lights.

2.26	Press the SHOCK button.	The unit discharges and the SHOCK button is no longer lit. A 15	o	o	o
		second strip chart automatically prints, displaying the number of
		joules delivered (if equipped with recorder).

Record your results on the Maintenance Test Checklist.

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	NO ECG LEADS OFF message displayed.	o	o	o
			MONITOR. Select leads.

		3.2	Disconnect one lead from	The ECG LEAD OFF message displays within 3 seconds (if	o	o	o
			the simulator.	configured).

		3.3	Reconnect the lead. Repeat	Wait for ECG LEAD OFF message to clear from the display (if	o	o	o
			step 3.2 with the remaining	configured).
			leads.

		3.4	Repeat 3.2 and 3.3 for 5	NOTE: If heart rate alarm sounds, press and hold the ALARM	o	o	o
			lead and 12 lead cables.	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.

		Record your results on the Maintenance Tests Checklist.

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).
	0.1Ω1% resistor (¼W or greater).
	1000Ω 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
	Battery Well	Supply
_	_	Supply
_
Black

M Series Service Manual

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

4.1	Turn the selector switch to	The unit should not turn on.	o	o
	MONITOR.
	(For AED units, turn the
	selector switch to ON and
	select Manual mode.)

4.2	Turn the unit off.		o	o

4.3	Adjust the power supply	The unit should turn on.	o	o
	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	No LOW BATTERY message displays.	o	o
	Set voltage to 9.8V.

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

4.6	Shut Down Voltage Test	Unit should shut off within 30 seconds.	o	o
	Set voltage to 8.5V.

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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	DMM
	DMM
+	+

		Battery Well
	_
			+
			+
				15 Amp
Black				Supply
			_

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

4.7	System Current Test
	Set power supply to 10.3V.

4.8	Turn the selector switch to	Voltage across resistor should be 80 mV or less (<800 mA of ON	o	o	o
	MONITOR.	current). NOTE: Without optional parameters.
	(For AED units, turn the		o	o	o
	selector switch to ON and	a) With green screen or LCD and no options <80mV	o	o	o
	select Manual mode.)	b) With yellow screen and no options <81mV	o	o	o
		c) With yellow screen and SpO2 <104mV	o	o	o
		c) With yellow screen and SpO2 <104mV	o	o	o
		d) With yellow screen and voice recording <91mV	o	o	o
		e) With yellow screen, voice recording and SpO2 <114mV	o	o	o
		e) With yellow screen, voice recording and SpO2 <114mV	o	o	o
		f) All devices with EtCO2 <121mV	o	o	o
		f) All devices with EtCO2 <121mV

4.9	Turn unit off.		o	o

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		13

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	Voltage should be less than 450 mV (<450 µA of current).	o o
	Measure across resistor
	with unit turned off.

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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	Turn the selector switch to	The energy selection decreases to 1J.	o	o
		DEFIB. Press and hold the
		ENERGY DOWN button on
		the sternum paddle.

	6.2	Press and release the	The energy selection increases incrementally to 360J (2, 3, 4, 5, 6,	o	o
		ENERGY UP button on	7, 8, 9, 10, 15, 20, 30, 50, 75, 100, 150, 200, 300, 360J).
		the sternum paddle for each	Biphasic: 1-10, 15, 20, 30, 50, 75, 100, 120, 150, 200J.
		setting.

	6.3	Press and release the	The recorder turns on. Press and release again to turn off.	o	o o
		RECORDER button on the
		sternum paddle.

	6.4	Select 30J using the paddle	The unit charges to 30J, then the red LED charge indicator	o	o
		ENERGY button. Press the	illuminates and the charge tone sounds. (Note that the front panel
		CHARGE button on the	shock button does not illuminate).
		Apex paddle.

	6.5	Press and release the APEX	No discharge.	o	o
		SHOCK button.

	6.6	Press and release the	No discharge.	o	o
		STERNUM SHOCK
		button.

	6.7	Press and hold both paddles	The unit discharges. The TEST OK message displays and the red	o	o
		SHOCK buttons.	LED turns off. The recorder runs.

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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 equivalent.
	Connect the ECG cable to the unit.

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

	7.1		Set the ECG Simulator to	The Heart Rate displays as 120 +/- 2 bpm	o o o
			120BPM.

Record your results on the Maintenance Tests Checklist.

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	Press the RECORDER
		button.

	8.2	Press and hold SIZE button	The strip chart displays a signal of 300 ppm with an amplitude of	o o o
		to activate the calibration	10 mm +/- 1 mm. The signal also appears on the video display.
		signal.

Record your results on the Maintenance Tests Checklist.

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

	9.2	Select lead I, size 3x.
		Select 60Hz (or 50 Hz for a
		50Hz unit) on the Dynatech
		Impulse 4000.

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

	9.4	Turn the ECG simulator off.

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M Series Service Manual

10.0 Heart Rate Alarm Test

Tools Needed	Dynatech Impulse 4000.

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

		10.1	Turn the selector switch to	Lead II message displays.	o	o	o
			MONITOR mode.	NSR ECG at 120 BPM +/- 2 displayed.
			(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.

		10.2	Press ALARMS.	The alarm menu displays.	o	o	o

		10.3	Press SELECT PARAM softkey	Cursor scrolls through parameters.	o	o	o
			until ECG HR displays.
		10.4	Press INC> for state.	Cursor scrolls through ENABLE, AUTO and	o	o	o
				DISABLE.

		10.5	Press DEC>for state.	Cursor scrolls through ENABLE, DISABLE, AND	o	o	o
				AUTO.

		10.6	Press INC> until ENABLE displays.	ENABLE displays.	o	o	o

		10.7	Set LOW limit to 30, HIGH limit to	MONITOR displays.	o	o	o
			150 then, press the RETURN
			softkey.

		10.8	Press ALARM SUSPEND button.	No alarm sounds.	o	o	o

		10.9	Remove a lead wire from the	The bell symbol flashes and the heart symbol stops	o	o	o
			Dynatech Impulse 4000.	flashing. The ECG LEAD OFF alarm tone sounds.
				Recorder prints a stripchart showing a low heart rate, if
				enabled.

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