SonoSite iLook User manual

iLook™ Ultrasound Tool
Service Manual

ii
P02975-01 09/02
Copyright 2002 by SonoSite, Inc.
All rights reserved. Printed in the USA.

iii
Manufactured by
SonoSite, Inc.
21919 30th Drive SE
Bothell, WA 98021-3904
USA
Telephone: [phone] or [phone]
Fax: [phone]
SonoSite European Headquarters
Baystrait House, Station Road
Biggleswade SG18 8AL
UK
Telephone: [phone]
Fax: [phone]
“iLook,” “SiteCharge,” “SitePack,” “SiteStand,” and “SonoHeart,” are trademarks of SonoSite, Inc.
Non-SonoSite product names may be trademarks or registered trademarks of their respective owners.
SonoSite products may be covered by one or more of the following U.S. patents: 4454884, 4462408, 4469106,
4474184, 4475376, 4515017, 4534357, 4542653, 4543960, 4552607, 4561807, 4566035, 4567895, 4581636,
4591355, 4603702, (4607642), 4644795, 4670339, 4773140, 4817618, 4883059, 4887306, 5016641, 5050610,
5095910, 5099847, 5123415, 5158088, 5197477, 5207225, 5215094, 5226420, 5226422, 5233994, 5255682,
(5275167), 5287753, 5305756, 5353354, 5365929, 5381795, 5386830, 5390674, 5402793, (5,423,220), 5438994,
5450851, 5456257, 5471989, 5471990, 5474073, 5476097, 5479930, 5482045, 5482047, 5485842, 5492134,
5517994, 5529070, 5546946, 5555887, 5603323, 5606972, 5617863, (5634465), 5634466, 5636631, 5645066,
5648942, 5669385, (5706819), 5715823, 5718229, 5720291, 5722412, 5752517, 5762067, 5782769, 5800356,
5817024, 5833613, 5846200, 5860924, 5893363, 5916168, 5951478, 6036643, 6102863, 6104126, 6113547,
6117085, 6142946, 6203498 B1, 6371918, 6135961, D0280762, D0285484, D0286325, D0300241, D0306343,
D0328095, D0369307, D0379231. Other patents pending.
Caution: United States federal law restricts this device to sale by or on the order of a
physician.

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Table of Contents
CHAPTER 1 Introduction 1
1.1 About the System......................................................................1
1.2 Audience ...................................................................................2
1.3 Conventions Used in This Manual............................................3
1.4 About the System Software ......................................................3
1.5 Software Licensing ...................................................................3
CHAPTER 2 Safety 5
2.1 Electrical Safety ........................................................................5
2.2 Equipment Protection................................................................6
2.3 Battery Safety............................................................................7
2.4 Biological Safety.......................................................................8
2.5 Labeling Symbols .....................................................................8
CHAPTER 3 System Overview 9
3.1 Theory of Operation..................................................................9
3.1.1 Transducer ........................................................................10
3.1.2 Acquisition Subsystem .....................................................10
3.1.3 Processing Subsystem ......................................................10
3.1.4 Display Subsystem ...........................................................10
3.1.5 Control Subsystem ...........................................................10
3.1.6 User Interface Subsystem.................................................10
3.1.7 Power Subsystem .............................................................11
3.2 Components ............................................................................11
3.3 Controls...................................................................................11
3.4 Accessories .............................................................................12
3.4.1 Battery Pack .....................................................................12
3.4.1.1 Battery Charge Indicators ............................................13
3.4.2 External Power .................................................................13
3.4.2.1 External System Connections ......................................14
3.4.3 Power Adapter..................................................................14

vi iLook Service Manual
3.5 System Specifications .............................................................15
3.5.1 Physical Dimensions ........................................................15
3.5.2 Monitor.............................................................................15
3.5.3 Transducers ......................................................................15
3.5.4 Imaging Modes.................................................................15
3.5.5 Image Storage...................................................................15
3.5.6 Temperature, Pressure, and Humidity Limits ..................16
3.5.6.1 Operating Limits: System/Docking Station .................16
3.5.6.2 Shipping/Storage Limits: System/Docking Station
without Battery.............................................................16
3.5.6.3 Operating Limits: Battery ............................................16
3.5.6.4 Shipping/Storage Limits: Battery.................................16
3.5.7 Electrical...........................................................................16
3.6 Battery.....................................................................................17
3.7 Safety Requirements ...............................................................17
3.7.1 Electromechanical Safety Standards ................................17
3.7.2 EMC/EMI Standards ........................................................17
3.7.3 Airborne Equipment Standards ........................................17
CHAPTER 4 Setup and Operation 19
4.1 Turning the System On and Off..............................................19
4.2 Installing and Removing the Battery ......................................20
4.3 Using AC Power .....................................................................21
4.4 System License Keys..............................................................22
4.4.1 Displaying the System Information Screen......................23
4.4.2 Displaying the License Update Screen.............................23
4.4.3 Installing a License Key...................................................23
4.5 Checking and Charging the Battery........................................24
CHAPTER 5 Cleaning and Disinfecting 27
5.1 Universal Precautions .............................................................27
5.2 Receipt of Suspected Contaminated Materials .......................27
5.3 Recommended Disinfectants ..................................................28

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CHAPTER 6 Troubleshooting 29
6.1 System and Subsystem Diagnosis...........................................29
6.2 System Repair .........................................................................29
6.3 Test Equipment .......................................................................29
6.4 Failures....................................................................................30
6.4.1 Display..............................................................................30
6.4.2 Control Panel....................................................................30
6.4.3 Main PCBA ......................................................................30
6.4.4 Clearing the Main PCBA Failure .....................................31
6.4.5 Battery ..............................................................................31
CHAPTER 7 Replacement Procedures 37
7.1 Display Subassembly Replacement ........................................37
7.1.1 Required Parts ..................................................................37
7.1.2 Required Tools and Materials ..........................................37
7.1.3 Removing the Display Subassembly................................38
7.1.4 Replacing the Display Subassembly ................................41
7.2 Transducer Subassembly Replacement...................................43
7.2.1 Required Parts ..................................................................43
7.2.2 Required Tools .................................................................43
7.2.3 Removing the Transducer Subassembly ..........................43
7.2.4 Replacing the Transducer Subassembly...........................45
7.3 Rear Case with Label Subassembly Replacement..................46
7.3.1 Required Parts ..................................................................46
7.3.2 Required Tools .................................................................46
7.3.3 Removing the Rear Case ..................................................46
7.3.4 Replacing the Rear Case...................................................46
7.4 Main PCBA Subassembly Replacement.................................47
7.4.1 Required Parts ..................................................................47
7.4.2 Required Tools .................................................................47
7.4.3 Removing the Main PCBA Subassembly ........................47
7.4.4 Replacing the Main PCBA Subassembly.........................48
7.5 iLook Docking Station Assembly...........................................49
7.5.1 iLook Docking Station Disassembly and Reassembly.....50
7.5.2 iLook Docking Station/Stand Theory of Operation .........51
7.6 iLook Stand Assembly Service...............................................59
7.6.1 iLook Stand Docking Section Disassembly and
Reassembly.......................................................................60
7.6.2 iLook Stand Theory of Operation ....................................62

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CHAPTER 8 Performance Tests 63
8.1 Overview.................................................................................63
8.2 Test Equipment .......................................................................63
8.3 Setting Up Performance Tests ................................................64
8.3.1 Scan Reference Orientation..............................................64
8.4 Testing 2D Performance .........................................................64
8.4.1 2D Image Quality .............................................................64
8.4.2 Axial Measurement Accuracy..........................................65
8.4.3 Lateral Measurement Accuracy .......................................66
8.4.4 Penetration........................................................................66
8.5 Additional Performance Tests ................................................67
8.5.1 CPD ..................................................................................67
8.5.2 DCPD (iLook 15 only).....................................................67
8.5.3 Tissue Harmonic Imaging (THI) (iLook 15 only) ...........68
8.5.4 Image Quality Verification Test.......................................68
8.5.5 Image Review...................................................................68
8.5.6 Printer ...............................................................................69
8.5.7 Battery Charging ..............................................................69
8.5.8 Video Output ....................................................................69
8.5.9 Touch Screen Calibration.................................................70
8.6 Returning Products to SonoSite..............................................72
8.6.1 Contacting SonoSite Technical Support ..........................72
8.6.2 Shipping Instructions........................................................72
APPENDIX A Parts List 73
APPENDIX B Service Event Report 87
Index 89

Chapter 1: Introduction 1
CHAPTER 1Introduction
Before servicing the SonoSite ultrasound system, please read the information in this
manual. This manual applies to the iLook®personal imaging tool and accessories.
1.1 About the System
The iLook system is a portable, software-controlled, ultrasound system with all-
digital architecture. It is used to acquire and display real-time, 2D, color power
Doppler (CPD), directional color power Doppler (DCPD), and Tissue Harmonic
Imaging ultrasound images. The system includes cine review, a distance
measurement, image storage, and image review. Currently, the system supports the
C15/4-2 MHz 15-mm microcurved array broadband transducer and an L25/10-5
MHz 25-mm linear transducer.
The system accessories include an extra battery, an auxiliary power cable, a stand,
and a docking station for charging batteries and downloading images to a personal
computer using SiteLink image manager software.
Optional peripherals include a medical grade black and white printer and a
Kensington Security Cable. Manufacturer’s instructions accompany each peripheral.
Instructions for the use of peripherals with the system are covered in the iLook User
Guide.
The software that runs the system uses graphic display elements similar to those
used in many personal computers. System terms and on-screen symbols are
explained in the iLook User Guide.

2iLook Service Manual
The following figure illustrates the iLook system.
Figure 1.1 The iLook System
1.2 Audience
The intended audience of this manual is properly trained field and depot service
personnel.
Transducer clip
Transducer
Handle pad
Battery
I/O connector
Stylus
Table 1.1 The iLook System
Item Description
Battery Two batteries are provided. Fully depleted batteries require approximately
two hours to charge to 90% capacity and three hours to charge to 100%
capacity.
Handle Pad Small and large handle pads are provided.
Transducer Clip
(C15 only)
Provides a storage area for the C15 transducer during exams or when
transporting the system.
Transducer The transducer is permanently attached to the system.
Stylus Used to tap on-screen menus, caliper placement, and data entry.
I/O Connector Used to connect system to docking station and auxiliary power.

Chapter 1: Introduction 3
1.3 Conventions Used in This Manual
These conventions are used in this user guide:
•AWarning describes precautions necessary to prevent injury or loss of life.
•ACaution describes precautions necessary to protect the products.
• Operating instructions are introduced with a statement in bold-face type that
ends with a colon. For example: To read this user guide:
• When the steps in the operating instructions must be performed in a specific
order, the steps are numbered.
• Bulleted lists present information in list format, but they do not imply a
sequence.
• The left side of the system is to your left as you face the system. The system
handle is on the left side of the system, and the battery compartment is at the
bottom left of the system.
• Note: A note cites information that is a general rule for a procedure, gives an
exception to a rule, or provides noncritical information of general interest.
1.4 About the System Software
Your SonoSite system contains software that controls its operation. From time to
time, SonoSite may provide new software for use with your system. This software is
provided using a method proprietary to SonoSite. This software may be either
required or optional.
When the new software is required, you must have it installed if you wish to use the
new software features. If you choose not to have it installed, please notify SonoSite
Technical Support at 877-657-8118.
When the software is optional, you can either have it installed or choose to use your
existing software.
1.5 Software Licensing
Use of software that you receive from SonoSite is controlled by a license key. A
license key is a number sequence containing exactly 12 decimal digits. If you require
a license key you will be notified by SonoSite.
License keys are obtained only from SonoSite or from its authorized representatives.
See Section 4.4, System License Keys, on page 22 for information on obtaining a
license key.

4iLook Service Manual

Chapter 2: Safety 5
CHAPTER 2Safety
Please read this information before using the iLook system. It applies to the
ultrasound system, transducers, accessories, and peripherals.
A Warning describes precautions necessary to prevent injury or loss of life.
A Caution describes precautions necessary to protect the products.
2.1 Electrical Safety
This system meets EN60601-1, Class I/internally-powered equipment requirements
and Type BF isolated patient-applied parts safety requirements.
This system complies with the applicable medical equipment requirements
published in the Canadian Standards Association (CSA), European Norm
Harmonized Standard, and Underwriters Laboratories (UL) safety standards. See
Section 3.5, System Specifications, on page 15.
For maximum safety observe the following warnings and cautions:
Warning: To avoid the risk of electrical shock or injury, do not open the system
enclosures. All internal adjustments and replacements, except battery
replacement, must be made by a qualified technician.
To avoid the risk of injury, do not operate the system in the presence
of flammable gasses or anesthetics. Explosion can result.
To avoid the risk of electrical shock, use only properly grounded
equipment. Shock hazards exist if the AC power supply is not
properly grounded. Grounding reliability can only be achieved when
equipment is connected to a receptacle marked “Hospital Only” or
“Hospital Grade” or the equivalent. The grounding wire must not be
removed or defeated.

6iLook Service Manual
2.2 Equipment Protection
To protect your ultrasound system, transducer, and accessories, follow these
precautions.
Warning: To avoid the risk of electrical shock, before using the transducer,
inspect the transducer face, housing, and cable. Do not use the
transducer if the transducer or cable is damaged.
To avoid the risk of electrical shock, always disconnect the AC power
supply from the system before cleaning the system.
To avoid the risk of electrical shock, do not use any transducer that
has been immersed beyond the specified cleaning or disinfection
level. See Chapter 5, Cleaning and Disinfecting, on page 27.
To avoid the risk of electrical shock and fire hazard, inspect the
power supply, AC power supply cord and plug on a regular basis.
Ensure they are not damaged.
To avoid the risk of electrical shock, use only accessories and
peripherals recommended by SonoSite. Connection of accessories
and peripherals not recommended by SonoSite could result in
electrical shock. Contact SonoSite or your local representative for a
list of accessories and peripherals available from or recommended by
SonoSite.
To avoid the risk of electrical shock, use commercial grade
peripherals recommended by SonoSite on battery power only. Do not
connect these products to AC power when using the system to scan or
diagnose a patient/subject. Contact SonoSite or your local
representative for a list of the commercial grade peripherals available
from or recommended by SonoSite.
To avoid the risk of electrical shock to the patient/subject, do not
touch the system battery contacts while simultaneously touching a
patient/subject.
To prevent injury to the operator/bystander, the transducer must be
removed from patient contact before the application of a high-voltage
defibrillation pulse.
Caution: Excessive bending or twisting of cables can cause a failure or
intermittent operation.
Improper cleaning or disinfecting of any part of the system can cause
permanent damage. For cleaning and disinfecting instructions, see
Chapter 5, Cleaning and Disinfecting, on page 27.
Do not use solvents such as thinner or benzene, or abrasive cleaners
on any part of the system.

Chapter 2: Safety 7
2.3 Battery Safety
To avoid the risk of injury, follow the warnings and cautions to make sure that the
battery does not burst, ignite, or generate heat or fumes.
Caution: Remove the battery from the system if the system is not likely to be
used for some time.
Do not spill liquid on the system.
The top membrane of a phantom is delicate and can be damaged if
handled improperly. Use minimum force when coupling the
transducer to a phantom.
Do not handle PCBs without proper static protection. Improper
handling may damage components.
Incorrect assembly or configuration or using an improper power
source may damage the system.
Warning: The battery has a safety device. Do not disassemble or alter the
battery.
Charge the batteries only when the ambient temperature is between
0° and 40°C (32° and 104°F).
Do not short-circuit the battery by directly connecting the positive
and negative terminals with metal objects.
Do not heat the battery or discard it in a fire.
Do not expose the battery to temperatures over 60°C (140°F). Keep it
away from fire and other heat sources.
Do not charge the battery near a heat source, such as a fire or heater.
Do not leave the battery in direct sunlight.
Recharge the battery only with the docking station battery charger or
the system.
Do not pierce the battery with a sharp object, hit it, or step on it.
Do not use a damaged battery.
Do not solder a battery.
When connecting the battery to the battery charger or to the system,
never reverse the polarity of the battery terminals.
The polarity of the battery terminals are fixed and cannot be switched
or reversed. Do not force the battery into the system or the battery
charger.
Do not connect the battery to an electrical power outlet.
Do not continue recharging the battery if it does not recharge after
two successive six hour charging cycles.

8iLook Service Manual
2.4 Biological Safety
Observe the following precautions related to biological safety.
2.5 Labeling Symbols
Labeling symbols for SonoSite products can be found in the user guide for each
product.
Caution: To avoid the battery bursting, igniting, or fumes from the battery and
causing equipment damage, observe the following precautions:
Do not immerse the battery in water or allow it to get wet.
Do not put the battery into a microwave oven or pressurized
container.
If the battery leaks or emits an odor, remove it from all possible
flammable sources.
If the battery emits an odor or heat, is deformed or discolored, or in
any way appears abnormal during use, recharging or storage,
immediately remove it and stop using it. If you have any questions
about the battery, consult SonoSite or your local representative.
Store the battery between -20°C (-4°F) and 60°C (140°F).
Use only SonoSite batteries.
Warning: Non-medical (commercial) grade peripheral monitors have not been
verified or validated by SonoSite as being suitable for diagnosis.
Do not use the system if it exhibits erratic or inconsistent behavior.
Discontinuities in the scanning sequence are indicative of a hardware
failure that must be corrected before use.
Do not use the system if it exhibits artifacts on the LCD screen, either
within the clinical image or in the area outside of the clinical image.
Artifacts are indicative of hardware and/or software errors that must
be corrected before use.
Some transducer covers contain natural rubber latex and talc, which
can cause allergic reactions in some individuals. Refer to the FDA
Medical Alert, March 29, 1991.
Perform ultrasound procedures prudently. Use the ALARA (as low as
reasonably achievable) principle.
SonoSite does not currently recommend a specific brand of acoustic
standoff.

Chapter 3: System Overview 9
CHAPTER 3System Overview
3.1 Theory of Operation
The SonoSite ultrasound system has seven major functional groups: the transducer,
the acquisition subsystem, the processing subsystem, the display subsystem, the
control subsystem, the user interface subsystem, and the power subsystem.
Figure 3.1 shows how these functions interact.
Figure 3.1 iLook Block Diagram
Front
End
Signal
Processing
Back
End
Scanhead
CPU Bus
RF Bus Acq Bus
Frame/ Line Triggers
VPWR
Power
Supplies
VBAT
Sys Pwr
IIC Bus
Power Control
Video Out
RS232
Prtr Ctl
Control
Xdcr
USB
Clocks
Sys Clks
Battery
AC/DC
Adapter
Charger
VDC
Dock
ChgRate

10 iLook Service Manual
3.1.1 Transducer
The transducer elements convert the pulser voltage to acoustic energy during the
“transmit” portion of the ultrasound acquisition cycle. Also, the transducer elements
convert the acoustic echo to voltage in the “receive” portion of the acquisition cycle.
The system transducers have 64–128 elements. The acquisition subsystem senses the
voltage developed on the transducer elements.
3.1.2 Acquisition Subsystem
The acquisition subsystem consists of a beamformer and an interface to the
transducer. The beamformer times the “transmit” pulses to focus the acoustic beam.
Also, the beamformer amplifies the low-level echo signal and times and focuses the
“receive” information.
3.1.3 Processing Subsystem
The high-speed processing subsystem interfaces with the beamformer. The
processing subsystem demodulates, filters, detects, and compresses the signal
supplied by the beamformer. Next, it sends this data to the display subsystem.
3.1.4 Display Subsystem
The display subsystem converts the detected ultrasound data into picture elements
(pixels). The software user interface graphics are combined with the ultrasound
information and converted to a video stream. The external video ports support NTSC
and PAL format.
3.1.5 Control Subsystem
The control subsystem consists of the central processing unit, program and video
memory, permanent image storage and retrieval memory, and a connection to the
user interface keys. The control software includes the acoustic power and intensity
software power group monitors, and a beamformer monitor. This software makes the
system operate within acoustic power and intensity limits, which guarantees a level
of patient safety.
3.1.6 User Interface Subsystem
The user interface subsystem comprises the software user interface and the form
factor. The software user interface is the interaction between the user and the screen
layout components. The form factor is the device’s physical attributes: buttons,
location and grouping of buttons and the device size, shape, and weight. Dedicated
controls, or often-used features, are grouped according to user workflow.

Chapter 3: System Overview 11
3.1.7 Power Subsystem
The power subsystem provides power and protects the hardware from destructive or
unsafe conditions. This subsystem’s hardware and software monitors detect failures
in the device. Upon detecting a fault, the system disables the pulser supply, and
signals an error to the control subsystem. The power subsystem includes the battery
pack and the battery charging electronics.
3.2 Components
The SonoSite system components are identified in Section 1.1, About the System, on
page 1.
3.3 Controls
Figure 3.2 shows the system controls.
Figure 3.2 System Controls
Patient
Touch screen
Menu
Directional
controller
Freeze
Save
Power
Table 3.1 System Controls
System
Control Icon Description
Power Press and hold for 1 beep to turn power on. Press and hold
for 2 beeps to turn power off.
Menu Press to turn the on-screen menu on. Press again to turn
the on-screen menu off.
Freeze Press to freeze an image. Measurements can be made on a
frozen image. Press freeze again to unfreeze the image.

12 iLook Service Manual
3.4 Accessories
For information about accessories and other SonoSite products, refer to the user
guide for each product.
3.4.1 Battery Pack
The system can be powered from either a battery pack or external power.
The system is powered by a rechargeable, 3-cell, 11.4 VDC, lithium-ion battery. A
fully charged battery will last for 20 minutes or more, depending on usage. The
battery pack case is made of injection molded plastic. When in use, it is inserted into
the system. The battery pack has no user-serviceable parts. The operating life of the
battery is 1-2 years, depending on how you use the system. Table 3.2 contains
battery operating specifications.
Save Press to save an image to the internal memory. Storage
capacity is up to 74 images.
Patient Press to access Patient Information, Exam Type, Image
Review, and System Set-up. Press again to return to
imaging.
Directional
Controller
Use to navigate on-screen menus, adjust caliper position,
and enter data. Use the right, left, up, or down arrows to
highlight menu items. Press the center to select.
Touch
Screen
Use stylus to tap on-screen menu options, position calipers,
and enter data. The touch screen is not active during live
imaging.
Table 3.1 System Controls
System
Control Icon Description
Caution: Use only the specified SonoSite battery pack. For battery safety
notes, see Section 2.3, Battery Safety, on page 7.