GE LOGIQ A1 User manual

 GE Medical Systems
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Technical
Publications
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5176463-100
Rev 2
LOGIQ A1
Basic Service Manual

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Copyright 2006 By General Electric Co.
Operating Documentation 

GE MEDICAL SYSTEMS LOGIQ A1 BASIC SERVICE MANUAL
REV 2 5176463-100
DAMAGE IN TRANSPORTATION
Please check all the packages carefully when delivering the device. If there
is any defect, please write the note “defect during transportation” on all the
copy of freight bill or delivery bill by GE’s agent or the principal of
hospital before deliver the goods. No matter the defect note is added or
not, let the deliveryman know the situation of the device. The freight
company is responsible of the goods within 14 days after receiving. If no
claim is made within this period, the freight company will not pay for
counterclaim.
 

 

GE Medical Systems (China) Co., Ltd.
Tel: [phone]
No.19, Changjiang Road, Wuxi National Hi-Tech
Development Zone,Jiangsu, P.R.C. 214028


GE MEDICAL SYSTEMS LOGIQ A1 BASIC SERVICE MANUAL
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Modification record
Vers-
ion
Old
Numbers
Chapter Page Summary Name Date
Rev2 Rev1 1. DAMAGE IN
TRANSPORT
ATION
2. CHAPTER 1
1. Page 1
2. Page 2
Update company
name, address, and
telephone number.
Hua Fang Oct. 25,
2006

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TABLE OF CONTENTS
CHAPTER 1 Introduction................................................................................................5
1-1 System Overview ...............................................................................................5
1-2 Purpose of Service Manual ................................................................................5
1-3 Safety Considerations ........................................................................................6
1-3-1 Warning....................................................................................................6
1-3-1 WarningContinued............................................................................7
1-3-2 Classification............................................................................................8
1-4 EMC (Electromagnetic Compatibility)...............................................................8
1-4-1 EMC performance.....................................................................................8
1-4-2 Notice upon installation of product...........................................................8
1-4-3 General Notice .........................................................................................9
1-4-4 Countermeasures against EMC related-issues ..........................................9
1-4-5 Notice on service.....................................................................................10
1-5 Contact Information.........................................................................................10
CHAPTER 2 INSTALLATION.....................................................................................11
2-1 PRE-Installation................................................................................................11
2-1-1 Overview.................................................................................................11
2-1-2 Power line Requirements ........................................................................11
2-1-3 Physical Specification.............................................................................11
2-2 Installation.........................................................................................................13
2-2-1 Overview.................................................................................................13
2-2-2 Average installation time ........................................................................13
2-2-3 Checking the components .......................................................................13
2-2-4 Unpacking LOGIQ A1............................................................................13
2-2-5 Assembling LOGIQ A1 ..........................................................................14
2-2-6 Installation of optional accessories .........................................................14
2-2-7 Adjustment of monitor contrast and brightness......................................15
2-3 Electrical safety tests.........................................................................................15
2-3-1 Outlet test wiring Arrangement...............................................................15
2-3-2 Ground Continuity ..................................................................................16
2-3-3 Chassis Leakage Current Test.................................................................17
2-3-3 Chassis Leakage Current Test (Continued).............................................18
2-3-3 Chassis Leakage Current Test (Continued).............................................19
2-3-4 Probe Leakage Current Test....................................................................20
2-3-5 When there’s too much Leakage Current…............................................23
CHAPTER 3 SYSTEM OUTLINE ...............................................................................24
3-1 Overview...........................................................................................................24
3-2 Structure............................................................................................................24
3-2-1 Structure..................................................................................................24
3-2-2 Size..........................................................................................................24
3-2-3 Rear Panel ...............................................................................................25
3-2-4 Control Panel ..........................................................................................25
3-3 Electric performance.........................................................................................26
3-3-1 Power supply...........................................................................................26

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3-3-2 Electrical socket requirement..................................................................26
3-4 Storage and operating requirements..................................................................26
3-5 Options.............................................................................................................27
CHAPTER 4 FUNCTIONAL CHECK .........................................................................28
4-1 Overview...........................................................................................................28
4-2 Procedures of Functional Check .......................................................................28
4-2-1 Monitor Display after turning on ............................................................28
4-2-2 Basic control ...........................................................................................29
4-2-3 Tissue-imitated ultrasonic phantom examination ...................................30
4-3 Diagnosis...........................................................................................................31
4-3-1 Keyboard Test .........................................................................................31
4-3-2 Image Memory Test ................................................................................31
4-4 Maintenance and Adjustment............................................................................31
CHAPTER 5 SYSTEM ARCHITECTURE ..................................................................32
5-1 Circuit Boards ..................................................................................................32
CHAPTER 6 PERIODIC MAINTENANCE.................................................................33
6-1 Overview..........................................................................................................33
6-2 Periodic Maintenance........................................................................................33
6-3 Procedure .........................................................................................................33
6-3-1 Visual inspection.....................................................................................33
6-3-2 Cleaning ..................................................................................................34
6-3-3 Testing.....................................................................................................35
6-4 Trackball maintenance......................................................................................35
6-4-1 Removal of the retainer ring of trackball................................................36
6-4-2 Cleaning the trackball .............................................................................36
6-4-3 Fixing the trackball and retainer ring.....................................................36

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CHAPTER 1 Introduction
1-1 System Overview
LOGIQ A1 is an advanced and high quality ultrasound diagnostic. It is a linear and
convex scanning system with 3.5MHz C60 convex-array probe as standard configuration,
7.5MHz L700 linear array probe and 6.0MHz C14 micro-convex probe as optional ones.
This system can be used for diagnosis of abdomen, OB/GYN and small parts etc.
1-2 Purpose of Service Manual
This Service Manual provides service information for the LOGIQ A1 Ultrasound
Scanning System. It contains the following chapters:
Chapter 1 - Introduction: Contains a content summary and warnings.
Chapter 2 - Installation: Including electric request before installation and LOGIQ A1’s
installation process with whole bills of installation and examination.
Chapter 3 - System Outline: including the description of mechanicalelectric
environment property, peripheries and accessories.
Chapter 4 – Functional Check: including function examination for repairing and
regular maintenance after installation.
Chapter 5 – System Architecture: composing configuration of system.
Chapter 6 – Periodic Maintenance: offer the periodic maintenance process of LOGIQ
A1.

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1-3 Safety Considerations
1-3-1 Warning
Read below notes carefully before using the system.
1. Read LOGIQ A1 User Manual before using the system and put it in an easy-to-reach
place.
2. Only the trained person can operate or repair LOGIQ A1. It is necessary to avoid the
unwanted ultrasound radicalization although emissive energy of LOGIQ A1
transducer is within standard limitation. ,
3. Only specified power cord is allowed to avoid shock. Power pin needs to be
connected to fixed socket with ground protection. Commutator is not allowed.
System is required to work within the rating voltage.
4. Probes need to be maintained carefully. It is dangerous to use damaged probe on
patient. Image quality is influenced by damaged probe too. The damaged probe
must be discarded, using repaired probe is forbidden. Do not touch the probe surface
with the speculate things or knock the probe.
5. Do not put any liquid over or on the top of mainframe. There might be current
leakage if electric parts are touched by liquid. Only trained service representative
can open the system mainframe to repair the system. Customer are not allowed to
open the system mainframe.
6. Do not use electric vibrating generator while using LOGIQ A1.
7. Use the machine in the prescriptive condition, otherwise it might disturb radiogram
and TV. In order to avoid this situation, please use the machine according to the
User Manual and Service Manual.

GE MEDICAL SYSTEMS LOGIQ A1 BASIC SERVICE MANUAL
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1-3-1 Warning

Continued


Fig1-1 describes the usage and position of safety labels and offers other important
information of this machine.
Table 1-1 Warning labels
Label/Symbol Description Position
Nameplate and electrical
parameter
• Manufacture and address
• Manufacturing date
• Type and serial number
• Electrical parameter
Back of mainframe
Type/grade label Indicate the degree of safety and
protection
Back of mainframe
Equipment authentication
labels
Indicate to have passed the trial-
produce register of national
medicament government.
Back of mainframe
Type BF deviceSymbol is the
person in the frameindicate
the type B device equipped with
the type F applied parts(usually
to hang some probes)
Exterior
Class equipment means the
equipment not only has the
basic insulation, but also has the
grounded to provide protection
against the electrical shock.
Pedestal (inside the
system)
Warning, high voltage CRT, transformer
Power is on. Front panel (on the power
switch)
Power is off. Front panel (on the power
switch)

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1-3-2 Classification
Anti-electrical shock type: Class I equipment *1
Level of anti-shock: Type BF equipment *2
1. Class I equipment*
This means the equipment not only has the basic level insulation, but also has the
grounding to provide protection against the electrical shock. This additional protection
can prevent the exposed metal to be electrification when insulated malfunction happens.
2. Type BF equipment*
The type B equipment equipped with the Type F applied parts can provide the protection
against the electrical shock. When adding 1.1 times voltage between applied parts and
ground, it will not pass the permissible leakage current in the singularity malfunction
condition.
1-4 EMC (Electromagnetic Compatibility)
1-4-1 EMC performance
The electromagnetic interfere to other device through interspace transmission or the
linked cable depends on the specialities of electric device. EMC glossary shows that the
device has the capability not only to avoid the electromagnetism interfere from other
device, but also has the capability not to affect others because of its own
electromagnetism interfered.
This product is designed strictly according to EMC for medical electric device.
In order to guarantee EMC capability of device, please install the machine according to
service manual. Pay attention to the Note 1-4-2.
If there is something wrong related to EMC, please resolve it according to the section
1-4-2 Notice upon installation of product
1. Use the power cord supplied or appointer by GE. The power pin must connect to the
fixed power socket with ground.

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2. Connect three-pin to three-pin socket, do not use the commutator of three-pin to
two-pin.
3. Keep the machine far away from the other electronical-device.
4. Use the cable supplied or appointed by GE and connect it according to the
installation process. For example, separate the power cord from signal cord.
1-4-3 General Notice
1. Only the appointed external devices can connect with this system and cannot affect
EMC capability.
2. Note when doing the modification:
a) Do not change the collocation of this system. As such modification will worsen
EMC capability.
b) Modification of collocation including:
• Modification of cable (length, material, connection and so on.)
• Modification of installation/composition of system
• Modification of configuration/components.
• Modification in the way to fix system/components (turn on or off the cover
board, close the bolt of cover board)
3. Close all the cover boards when operating, if one cover board is on, make it off
before continuing the operation in spite of any reason. It will affect EMC capability
when the cover board is on.
1-4-4 Countermeasures against EMC related-issues
It is usually difficult to resolve EMC problems, it takes a lot of time and cost, and
make the electromagnetism interfere to other device.
1. Keep the system far away from other device, that can decrease electromagnetism
interfere.
2. Change the relative position between this system to other devices, that can decrease
electromagnetism interfere.
3. Change the position of other device’s power cord/signal cord, that can decrease
electromagnetism interfere.
4. Change the power supply route of other device, that can decrease electromagnetism
interfere.

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1-4-5 Notice on service
Close the bolts after repairing, flexible bolts will depress EMC capability.
Note: The ultrasound system should be used far away from the electricity generator,
cellphone, amphibious transceiver, broadcasting station and electromotion control toy
etc to avoid the capability of LOGIQ A1 to pass the regulation. Turn off power supply
when such device beside LOGIQ A1.
Note: It is responsible for the service person of LOGIQ A1 to guide the technician who
is related to system, patient and other persons to follow these regulations.
1-5 Contact Information
If this equipment does not work as indicated in this service manual or in the User
Manual, or if you required additional assistance, please contact the local distributor or
appropriate support resource, as listed below.
Prepare the following information before your call:
- System ID serial number.
- Software version.
NEEDS Local Service Contact Info (e.g. 800 number) HERE!!
Contact below system manufacturer for advanced technical support.
GE Medical Systems (China) Co., Ltd.
U/S Technical Support
No.19, Changjiang Road, Wuxi National Hi-Tech Development Zone,
Jiangsu, P.R.C. 214028
Tel: +86-51085225888
Fax: +86-510 – 85226688

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CHAPTER 2 INSTALLATION
2-1 PRE-Installation
2-1-1 Overview
This section provides the information required to plan and prepare for the installation of
a LOGIQ A1. Included are descriptions of the facility and electrical needs to be met by
the purchaser of the unit.
2-1-2 Power line Requirements
Check the following wire’s parameters a week before installation. It is better to use
Drantez Model 605-3 power cord monitor with 101 options.
Parameter Rating
Power requirementAC 220V±22V
Power consumptionNo greater then 130VA
Power supply frequency50Hz
Power supply twinkling changeLess than 25% of regular peak value, less
than1ms of any instant-change status,
including frequencysynchronization
asynchronism or non-seasonal status’s
change.
Attenuation surgeLess than 15% of peak value voltage, less
than 1ms.
2-1-3 Physical Specification
The weight of LOGIQ A1 is about 10Kg
Working Condition

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Table 2-1 Working condition
Conditions
Parameter Operation Preservation Transportation
Temperature 5

40

-5

40

-30

55

Humidity
30%--80%

no
condensation
Less than80%

no
condensation
Less than 95%

no
condensation
Atmosphere
pressure
86kPa

106kPa 86kPa

106kPa 50kPa

106kPa
To patient:
It is better for patient to keep the room temperature in the range of 20°C - 26°C(68°F -
79°F), as the humidity 50% -70%.
EMI
The radio frequency

magnetic field

space twinkling status and electrical net is easy to
affect ultrasound device. The electrical equipment may cause the space
electromagnetism interfere or electrical net electromagnetism interfere. The resource of
the electromagnetism interfere including medical lasercautery electron gun
computerelectric fanGel refinermicrowave oven and cellphone, and
broadcasterbig truck also.
Read the following defend measurements carefully before installing the device:
1. Connect all the devices’ power cord to the fixed power socket with ground.
2. Make sure to connect the place of equipment with the ground of building.
3. Keep the device far away from other electronic device.
If make sure or doubt that there is something wrong about EMI, deal with the jamming
devices as follows:
1. Move the devices far away from jamming devices.
2. Change the position of device in the room.
3. Connect the power cord to another power socket.
4. Move the device’s power cord and signal cord.
Make sure to screw down bolts after installing the device after repairing.

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2-2 Installation
2-2-1 Overview
This section describes the steps to install LOGIQ A1.
2-2-2 Average installation time
It takes about 1 hour to install GE LOGIQ A1.
2-2-3 Checking the components
Check the device carefully when getting a new one, if there is hard up of parts, contact
through the way in the Chapter 1.
Warning: Connect LOGIQ A1 to the right grounded power socket to avoid electrical
shock, do not use three-pin to two-pin commutator that will destroy the grounded safety.
Warning: There is no spare parts of an apparatus for operator. Do not open the outer
frame or panel in order to avoid electrical shock. Only the service person can do the
servicing when there is some wrong with the device except supply socket.
Warning: Make sure the back panel is well ventilated.
Warning: Do not hurt the rubber of probe surface, using of damaged probe is
prohibited.
Warning: Although the emissive ultrasound energy is in the prescriptive range, it is
better to avoid unnecessary ultrasound radiation.
2-2-4 Unpacking LOGIQ A1
1. Snip the package cingulum around the box.
2. Remove the adhesive tape.
3. Open the paper box.
4. Take out the User manual , probe box, ultrasound gel and power cord.
5. Take the device out of the package.
6. Wipe off the plastic bag around device.

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2-2-5 Assembling LOGIQ A1
Assembling system
1. Get the probe out of package and put in into the special probe holder.
2. Make sure the mainframe off before connecting probe.
3. Make sure any probe connects to the following socket:
a. Turn the handle key to the position of 3 o’clock.
b. Connect the linker of probe to the probe socket of main unit.
c. Turn the handle key to the position of 12 o’clock.
4. Connect the inner pin to AC socket in the back panel of main unit, connect another
pin to the hospital power socket with the regular press output, do not use three-pin
to two-pin commutator, that will destroy the grounded safety.
5. Open the keyboard through the lock on the top of main unit.
Note: Do not move or institute mainframe when dropping the keyboard.
2-2-6 Installation of optional accessories
1. Connect VGP to suitable power socket, connect Video out port to Video In of VGP
with BNC-BNC cable in the back panel of LOGIQ A1.
Install the accessories
Illustration 2-1

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2-2-7 Adjustment of monitor contrast and brightness
Adjust contrast and brightness according to the brightness of room after turning on the
main unit.
Note: Check the function in Chapter 4 before deliver the goods to customer.
2-3 Electrical safety tests
The following tests are performed at the factory and should be repeated at the sites as
part of periodic maintenance. These tests are: grounding continuity, classis leakage
current, probe leakage current. All measurements are made with an Electrical Safety
Analyzer Model Dale 600/600E built by Dale Technology Corporation or equipment
device.
Recommended Tool
Table-2-2
Recommended Tool
Part Number Name Description
46-285652G1GE
Electrical Safety Analyzer
DALE 600
For 120V Units
46-328406G2(GE) Electrical Safety Analyzer 600E For 220V Units
2113015(GE) Leakage Current Ultrasound Kit For 120V and 220V Units
2-3-1 Outlet test wiring Arrangement
Test all outlets in the area for proper wiring arrangement by plugging in the Dale
600/600E and noting the combination of lights that are illuminated.

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Outlet test
Illustration 2-2
Note: No outlet tester can detect the condition where the Neutral (grounded supply)
conductor and the Grounding (protective earth) conductor are reversed. If later tests
indicate high leakage currents, this should be suspected as a possible cause and the
outlet wiring should be visually inspected.
2-3-2 Ground Continuity
Caution: The patient must not be contacted to the equipment during the test because it
may cause electric shock.
Caution: Measure the resistance from the third pin of the attachment plug to the
exposed metal parts of the case (See Illustration 2-3), this should be less than 0.2 ohms.
OHMMETER
Ground continuity test
Illustration 2-3
Combination
of Lights
Condition
Correct Wiring
Reverse Polarity
Open Ground
Open Hot
Hot/Ground Reversed

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Meter Procedures
Follow these steps to test the ground wire resistance.
1. Turn the main unit LOGIQ A1.
2. Plug the unit into the meter, and the meter into the tested AC wall outlet. (Refer
Illustration 2-3)
3. Plug the black chassis cable into the meter’s “CHASSIS” connector and attach the
black chassis cable clamp to an exposed metal part of LOGIQ A1.
4. Set the meter’s “FUNCTION” switch to the RESISTANCE position.
5. Set the meter’s “POLARITY” switch to the OFF (Center) position.
6. Measure the ground wire resistance and keep a record of the results with other hard
copies of Preventive Maintenance (PM) data kept on site.
2-3-3 Chassis Leakage Current Test
Definition
Leakage current is the electrical current that could flow through the patient or
sonographer should a ground wire break. The unit, the probes and all external
peripherals must be tested.
The test verifies the isolation of the power line from the chassis. The testing meter is
connected from accessible metal parts of the case to ground. Measurements should be
made with the unit ON and OFF, with the power line polarity Normal and Reversed.
Record the highest reading of current.
SETUP FOR CHASSIS SOURCE LEAKAGE CURRENT
Illustration 2-4

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2-3-3 Chassis Leakage Current Test (Continued)
Meter Procedures
1. Follow these steps to test the unit for leakage current.
2. Turn the main unit of LOGIQ A1 off.
3. Plug the unit into meter, and the meter into the tested AC wall outlet.
GROUND AND CHASSIS LEAKAGE CURRENT TEST
Illustration 2-5
4. Plug the black chassis cable into the meter’s “CHASSIS” connector and attach the
black chassis cable clamp to an exposed metal part of LOGIQ A1. (Refer Illustration
2-4)
5. Set the tester’s “Function” switch to CHASSIS position.
6. Take readings for various locations as mentioned in Table 2-3.
Table 2-3
CHASSIS LEAKAGE CURRENT TEST CONDITIONS
Test Location
1 Mounting screw for probe receptacle
2 Real Panel
3 Mounting screw on the handle
4 Mounting screw for peripheral plugged into unit