CU Medical Systems i-PAD NF1200 User manual

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Service Manual
CU Medical Systems, Inc.
i-PAD NF1200

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i-PAD NF1200
Quick Reference Card
Rescue Steps
1. Connect the defibrillator pads to the i-PAD and then place on patient.
2. Stand clear and press the SHOCK button if instructed.
3. Administer CPR

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Notice
i-PAD NF1200 Service Manual
CU Medical Systems, Inc. reserves the right to make changes on the device specifications contained in this manual
at any time without prior notice or obligation to customers.
Printed in the Republic of Korea
Publication Date: March 2007
Service Manual Part No.:
© 2007 CU Medical Systems, Inc.
No part of this manual may be reproduced without the permission of CU Medical Systems, Inc.

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Table of Contents
Table of Contents ...................................................................................................................4
1. Introduction........................................................................................................................5
1.1 The i-PAD NF1200 .......................................................................................................................................... 5
1.2 Service Manual Overview ............................................................................................................................... 5
1.3 Warnings, Cautions, and Notes........................................................................................................................ 5
1.4 i-PAD NF1200 Device Details ........................................................................................................................ 5
1.4.1 Operating Controls, Indicators and Accessories ................................................................................... 7
1.4.1.1 Device Parts Illustration .............................................................................................................. 7
1.4.1.2 Accessories ................................................................................................................................ 10
1.4.2 Voice and Text Prompts ....................................................................................................................... 11
2. Routine Maintenance .......................................................................................................13
2.1 Overview........................................................................................................................................................13
2.2 Cleaning the i-PAD NF1200.......................................................................................................................... 13
2.3 Periodic Safety and Functional Checks.........................................................................................................14
2.4 Batteries ......................................................................................................................................................... 16
3 Performance Verification ..................................................................................................17
3.1 Self-Tests........................................................................................................................................................17
3.2 Automatic Self-Tests......................................................................................................................................18
3.3 Battery Insertion Test..................................................................................................................................... 18
3.4 Self Test Results............................................................................................................................................. 18
3.4.1 Automatic Self Tests............................................................................................................................18
3.4.2 Battery Insertion Test...........................................................................................................................18
3.5 Shock Waveform Verification Test ................................................................................................................ 20
3.6 Data Transmission Test .................................................................................................................................. 22
3.7 Impedance Measurement Test .......................................................................................................................23
3.8 Voice and Text Prompt Testing ...................................................................................................................... 24
4 Troubleshooting ................................................................................................................26
4.1 How to Use This Section ...............................................................................................................................26
4.2 Who Must Perform Repairs ...........................................................................................................................26
4.3 Replacement Level Supported....................................................................................................................... 26
4.4 Troubleshooting Guide .................................................................................................................................. 26
5 Disassembly and Repair....................................................................................................33
5.1 Disassembly ...................................................................................................................................................34
5.2 Reassembly ....................................................................................................................................................40
6 Assembly Diagram............................................................................................................41
Technical Specifications ......................................................................................................43
Electromagnetic Compatibility ............................................................................................49

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1. Introduction
1.1 The i-PAD NF1200
The i-PAD is a semi-automated external defibrillator designed for minimally trained individuals. It provides
simple and direct voice prompts and indications for a straightforward rescue operation. It is lightweight and
battery powered for maximum portability.
1.2 Service Manual Overview
This Service Manual contains service information and instructions intended for qualified service personnel who
will repair and service the i-PAD NF1200.
1.3 Warnings, Cautions, and Notes
“WARNING” – used to denote conditions, hazards, or unsafe practices that can result in serious personal injury or
death.
“CAUTIONS” – used to denote conditions, hazards, or unsafe practices that can result in minor personal injury,
damage to the i-PAD NF1200, or loss of data stored in it.
“NOTES” – used to denote items that are important during installation, operation, or maintenance of the i-PAD
NF1200.
1.4 i-PAD NF1200 Device Details
The following description and diagrams show the details of the i-PAD NF1200.

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Analog Front-end Analog to Digital
Converter
ECG and
impedance
signals Main
Microprocessor and
Memory
ECG and
impedance
data
Defib Control
Microprocessor and
Memory
Defibrillation
Control Signals
Patient Switches
H-Bridge
Internal Disarm
Resistor
Battery Pack
High Voltage Power
Supply
Therapy Capacitor
General Power
Supply
12V
Electrical
energy
High Voltage
Electrical
energy
High Voltage
Electrical
energy
15V, 5V, 3.3V, -3.3V, 1.8V
To various parts
of the device
Data Storage and
Backup
Subsystem
To External
Device
High Voltage Subsystem
Analog Front-end Subsystem Main Digital Subsystem
Power Supply Subsystem
Data Storage and Backup Subsystem
i-PAD NF1200 Functional Block Diagram

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1.4.1 Operating Controls, Indicators and Accessories
1.4.1.1 Device Parts Illustration
Top View of the i-PAD NF1200 with its cover closed

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Perspective view of the i-PAD NF1200 with its cover open

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Power ON/OFF
Button
Press this button to turn the i-PAD ON or OFF.
i-Button Press this button to:
•Get information regarding the i-PAD’s last usage (usage time and number of
shocks delivered.)
•Get information regarding errors that were detected during self-tests.
•Toggle between compression-to-breathing ratios during CPR (30:2 and 15:2)
State LED Indicates the status of the i-PAD
•blinking green: the i-PAD is in standby mode and ready for a rescue operation
•solid green: the i-PAD is in rescue mode.
•blinking red: the i-PAD detected a system error or low battery level during a self-
test.
•solid blue: the i-PAD is conducting a self-test.
•solid white: the i-PAD is in administration mode. It announces last use
information and it senses and waits for a possible data
transfer to a personal computer.
Handle An easy-grip carrying handle for increased portability of the i-PAD.
Cover Covers the front panel of the i-PAD and retains the defibrillator electrode pads package.
SHOCK button Press this button when the i-PAD prompts you to “Press the flashing orange button now”.
Pressing this button delivers a defibrillation shock to the patient.
AED electrode
pads connector
port
Plug the connector of the AED electrode pads into this port
Graphical Rescue
Guide
Guides you by indicating the current step in the rescue process.
Quick Reference
Guide
A printed card that summarizes the steps of a rescue process using the i-PAD.
Battery Pack Provides power to the i-PAD.
Initiates a self-test upon insertion.
IrDA
Communication
Port
Port for sending and receiving data to and from a personal computer.

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1.4.1.2 Accessories
Only parts and accessories approved by CU Medical Systems, Inc. must be used with the i-PAD NF1200. Using
parts and accessories that are not approved by CU Medical Systems, Inc. may degrade performance.
Standard Accessories
Defibrillator Electrode Pads and
Connector Assembly
Self adhesive, pre-gelled defibrillator electrode pads used to
acquire the ECG signal from the patient and to deliver the
defibrillation shock to the patient.
Disposable, non-rechargeable, LiMnO2
battery pack
Power source of the i-PAD NF1200. This battery is inside the
case of the device. RETURN the i-PAD NF1200 to an
authorized service representative in case the battery pack needs
to be replaced.
Optional Accessory
Carrying Case
Used to store the i-PAD NF1200 and the accessories needed for
a rescue operation.
Using accessories and cables other than the ones specified in this manual may result in increased
ELECTROMAGNETIC EMISSIONS or may decrease the ELECTROMAGNETIC IMMUNITY of the
i-PAD NF1200
Replacement accessories and consumables must be sourced only from CU Medical Systems, Inc. or its
authorized representatives.

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1.4.2 Voice and Text Prompts
Prompts
The i-PAD NF1200 guides you throughout a rescue operation using voice prompts and other audio-visual
indicators. The following table lists the voice prompts of the i-PAD NF1200.
Table: Voice prompts and their meanings.
Prompt Meaning/Definition
Attach pads •Indicates that you have to attach the defibrillator electrode
pads to the bare chest of the patient and to the i-PAD
NF1200
Do not touch the patient •Indicates that you or any bystander must not touch the
patient.
Analyzing heart rhythm •Indicates that the i-PAD NF1200 is analyzing the ECG of
the patient. Nobody must touch the patient.
Shock advised •Indicates that a shockable ECG rhythm has been detected
and the i-PAD NF1200 is preparing for a shock delivery.
Stand clear •Emphasizes the need to stay clear of the patient. Given just
before the prompt to deliver shock is given.
Press the flashing orange button, now.
Deliver shock, now.
•Indicates that you have to press the shock button in order
for the shock to be delivered. The shock will only be
delivered if you press the shock button.
Shock delivered •Indicates that a shock has been delivered to the patient.
Begin CPR, now •Indicates the start of CPR.
•You may touch the patient after this prompt is given.
Push the chest down, fast, two inches •Indicates that you have to push the chest down for about
two inches during CPR. The chest has to be pushed down
fast.
Give two breaths. Breath, breath •Indicates that you have to give artificial breaths to the
patient. Time the breaths with the breathing guide.
The shock button was not pressed •Indicates that you did not press the shock button within 15
seconds when the i-PAD NF1200 prompted you to do so.
No shock advised •Indicates that the i-PAD NF1200 detected a nonshockable
rhythm.
Check pulse •Indicates that you have to check the pulse of the patient.
If no pulse, begin CPR •Indicates that if there is no pulse, you have to begin CPR.
System shutting down •Indicates that the ON/OFF button of the i-PAD NF1200
has been pressed to turn it OFF.
Press the flashing orange button, now •Given during battery insertion test. Indicates that you have
to press the SHOCK button so that the i-PAD NF1200 can
test its functionality.
Press the flashing blue i-Button •Given during battery insertion test. Indicates that you have
to press the i-Button button so that the i-PAD NF1200 can
test its functionality.
Administration mode •Indicates that the i-PAD NF1200 is in administration mode

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Table: Voice prompts and their meanings, continued
Prompt Meaning/Definition
Device usage time is 10 minutes •Given during administration mode. Indicates the duration
(in minutes) that the i-PAD NF1200 was ON. In this case,
the i-PAD NF1200 was ON for 10 minutes during its
previous usage.
Shock delivery is 4 times •Given during administration mode. Indicates the number
of shocks that the i-PAD NF1200 delivered. In this case,
the i-PAD NF1200 delivered four shocks during its
previous usage.

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2. Routine Maintenance
2.1 Overview
The i-PAD NF1200 does not need any routine maintenance or calibration of its internal electronic subsystems.
Whenever service is necessary, please contact CU Medical Systems, Inc. or any of its authorized representatives.
2.2 Cleaning the i-PAD NF1200
After each use, clean the i-PAD NF1200 using a soft, damp cloth moistened with any of the following solvents:
Soap and water
70% solution isopropyl alcohol
Chlorine bleach and water mixture (30 ml bleach/liter of water)
Ammonia-based cleaners
Hydrogen peroxide
Do not immerse any part of the i-PAD NF1200 in fluids
Do not let any fluid enter the case of the device.
Do not spill liquids on the case of the device.
Do not use strong, acetone-based cleaners in cleaning the device.
Do not use abrasive materials in cleaning the unit, especially on the LCD display and the infrared
filter on the IrDA port.
Do not sterilize the i-PAD NF1200.

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2.3 Periodic Safety and Functional Checks
It is recommended that the following periodic checks be performed to ensure that the device and its accessories are
in good condition and ready for any emergency.
Maintenance Activities
Frequency Activity Actions to be Taken
Daily
Check the i-PAD NF1200 for any error
messages that might have been
generated during the Daily Periodic
Self-Test.
If a message that the battery is low is
displayed, recharge the battery. For any other
error messages, please call the manufacturer
or its designated service center.
Check supplies, accessories, and spare
parts for damage and expiration.
If any supplies have expired, replace them
immediately.
Initiate complete self-test by doing a
Manual Self-Test.
If the self test detects any problem, see the
chapter on Troubleshooting.
Check the case of the i-PAD NF1200
and the accessories for any sign of
apparent damage.
If there is any apparent damage to the case of
the device, consult the manufacturer.
Monthly and after
each use
Check for dirt contamination. If there is dirt contamination, clean the case as
suggested in the section on Cleaning.
After each use.
Ensure that the connector of the
defibrillator pad assembly is
disconnected from the ECG-DEFIB
port of the i-PAD NF1200.
Disconnect the pad assembly from the ECG-
DEFIB port

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MAINTENANCE CHECKLIST
i-PAD NF1200
Serial Number __________________ Location/Vehicle ID _________________
Date
Scheduled Frequency
i-PAD NF1200:
Clean, no signs of damage, free of
excessive wear
Supplies Available
-2 sets of defibrillator electrode pads,
undamaged, sealed, within expiration
date
-supplementary supplies (razor,
scissors, gloves, gauze)
Remarks, Problems, Corrective
Actions
Inspected by
Signature of operator doing the
inspection

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2.4 Batteries
The i-PAD NF1200 is equipped with LiMnO2 battery cells. These batteries are nonrechargeable. The status of the
battery charge is monitored by periodic tests (daily, weekly, monthly), power ON test, run-time test, and battery
insertion test. The i-PAD NF1200 indicates through the State LED and the i-Button if the battery pack needs to be
replaced.
If the voltage level of the internal Battery pack falls below the minimum tolerable level, the i-PAD NF1200 is
going to be inoperative.
If this is detected during automatic self-test, the i-PAD NF1200:
a. Flashes the State LED in red
b. Emits a burst of beeps every minute.
When the i-PAD NF1200 is turned ON after a low battery condition is detected, the i-PAD NF1200:
a. Turns the State LED momentarily in blue.
b. Then turns the State LED in solid red.
c. Flashes .the i-Button in red
d. Gives the prompt: “Press the flashing red i-Button”.
e. After the i-Button is pressed, the i-PAD NF1200 gives the prompt: “Low battery. Replace the battery with a
new one.”
The sequence of indications from a to e above is also given when the low battery level is detected during battery
insertion test.
•Keep the battery pack out of children’s reach.
•If the battery pack, leaks and the leaked liquid gets in the eyes, wash them with clean water and
consult a physician immediately.
•Do not leave the battery pack in direct sunlight or in high temperature areas.
•Do not have the battery pack in contact with water.
•Keep the battery pack away from direct sunlight, high temperature, and humidity.
•Follow local regulations when disposing of the battery pack.
•Do not subject the battery pack to conditions beyond the safe environmental conditions for the i-PAD
NF1200.
•Do not charge the battery pack
•Do not open the case of the battery pack. Do not saw off or break apart the case of the battery pack.
•Do not let the battery pack come into contact with open flames and other hot objects. Do not dispose
of in fire
•Do not short-circuit the terminals of the battery pack.
•Do not subject the battery pack to serious physical impact. Do not hit it with a hammer.
•In case of leaka
g
e or stran
g
e smell, kee
p
awa
y
from fire to
p
revent i
g
nition of an
y
leaked electrol
y
te.

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3 Performance Verification
3.1 Self-Tests
The i-PAD NF1200 conducts automatic self-tests and a battery insertion test to verify the functionality of its
subsystems. The automatic tests are conducted at Power On, Run-time, and daily, weekly, and monthly. It is
important to have the battery connected to the i-PAD NF1200 all the time so that it could conduct the automatic
self-tests.
The battery insertion test conducts all the tests done during automatic self-tests. You have to insert a functioning
battery pack to initiate a battery insertion test.
Daily self-tests, as the name indicates, are conducted daily. A test counter is incremented whenever an automatic
self-test is conducted. Reckoning of self-test timing starts whenever a battery pack is inserted. For example, if the
battery pack is inserted at 11 am on January 1, the next self-test is at 11 am on January 2.
Weekly self-tests are conducted whenever the test counter is a multiple of 7 and not a multiple of 28.
Monthly self-tests are conducted whenever the test counter is a multiple of 28.

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3.2 Automatic Self-Tests
When the i-PAD NF1200 conducts an automatic self-test (Daily, Weekly, Monthly), it wakes up automatically and
turns the State LED solid blue during the duration of the test. It goes back to standby mode after the test.
3.3 Battery Insertion Test
Insert a functioning battery pack to initiate a battery insertion test.
3.3 Self Test Results
3.4.1 Automatic Self Tests
When no problem is detected during automatic self tests, the i-PAD NF1200 does nothing but increment the test
counter. On the other hand, when a problem is detected, the i-PAD NF1200 does the following:
a. Upon detecting the problem
i. Beeper emits bursts of three successive beeps. Bursts are spaced one minute apart.
ii. State LED flashes in red.
b. When the i-PAD NF1200 is turned ON while the State LED is flashing in red:
i. The State LED turns solid blue then solid red.
ii. The i-Button flashes in red.
iii. The beeper emits a short beep and the i-PAD NF1200 gives the voice prompt: “Press the flashing red i-
Button”
iv. After the i-Button is pressed, the beeper emits a short beep and the i-PAD NF1200 gives either of the
following voice prompts: “Low battery level. Replace the battery with a new one.” – if the i-PAD
NF1200 detected a low battery level.
“System failure. Error code is 2”. – if the i-PAD NF1200 detected a system failure. The error code is a
number from 2 to 128.
v. The i-PAD NF1200 turns off automatically.
vi. The State LED flashes in red every 5 seconds and the beeper emits three successive beeps every minute
to signify the occurrence of an error.
3.4.2 Battery Insertion Test
If no problem is detected, the i-PAD NF1200 activates the following indicators and voice prompts:
a. Beeper beeps for 1 second. State LED turns ON in blue for the duration of the self-test.
b. Shock button flashes in orange. At the same time, the i-PAD NF1200 gives the voice prompt: “Press the
flashing orange button, now”. The voice prompt is looped until the shock button is pressed. Beeper emits a
short beep when the flashing shock button is pressed.
c. After the shock button is pressed, the i-Button backlight flashes in blue. At the same time, the i-PAD NF1200
gives the voices prompt: “Press the flashing blue i-Button”. The voice prompt is looped until the i-Button is
pressed. Beeper emits a short beep when the flashing i-Button is pressed.
d. After the i-Button is pressed, the State LED turns OFF then flashes in green three times to signify the end of
the battery insertion test. The State LED then flashes every 5 seconds to signify that it is in standby mode.

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If a problem is detected, the i-PAD NF1200 activates the following indicators and voice prompts:
a. i-Button turns ON in blue.
b. Beeper emits bursts of three successive beeps. Bursts are spaced one minute apart. State LED flashes in red.
Flashes are spaced 5 seconds apart.
c. When the power is turned ON, the State LED turns solid blue then solid red. The i-Button flashes in red, the
beeper emits a short beep, and the i-PAD NF1200 gives the voice prompt: “Press the flashing red i-Button.”
d. After you press the flashing red i-Button, the beeper emits a short beep and the i-PAD NF1200 gives any of
the following voice prompts
“Low battery level. Replace the battery with a new one” – given if the cause of the error is low battery level
“System failure. Error code is 2” – given if the cause of the error is a system error. The error code is a
number between 2 and 128.
e. The i-PAD NF1200 turns OFF automatically.
f. The State LED flashes in red every 5 seconds and the beeper emits three successive beeps every minute to
signify the occurrence of an error.
The list of ERRORS and the corresponding meanings are given in the following table.
Table: Self-Test Error Codes
Error Name Error Code Fault Remedial Action
LOW BATTERY 0001 Low battery charge Replace the battery pack with a new
one.
SYSTEM ERROR 0002 ROM chip 1 fault See Troubleshooting in Chapter 4
SYSTEM ERROR 0004 ROM chip 2 fault See Troubleshooting in Chapter 4
SYSTEM ERROR 0016
Error in communication
between the main and HV
micros
See Troubleshooting in Chapter 4
SYSTEM ERROR 0032 Charging failure See Troubleshooting in Chapter 4
SYSTEM ERROR 0064 Discharging failure See Troubleshooting in Chapter 4
SYSTEM ERROR 0128 Disarming failure See Troubleshooting in Chapter 4

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3.5 Shock Waveform Verification Test
Equipment needed
Defibrillator Analyzer with energy measurement function
Oscilloscope with high voltage probes (up to 2500 V capacity) and current probe (up to 100 A capacity)
X
251% 100W Wire-Wound
501% 100W Wire-Wound
1001% 100W Wire-Wound
1251% 100W Wire-Wound
1501% 100W Wire-Wound
Various 100-Watt resistances
Y 50Ω1% 100W Wire-Wound
Test Setup
Defibrillator
under test Defibrillator
Analyzer
X
Y
Oscilloscope
Current
probe
resistance
resistance