Oscan
Oscan
Service Manual
Service Manual
© ESAOTE S.p.A.
AG 2014
The reproduction, transmission or
use of this document or its contents
is not permitted without express
written authority. Offenders will be
liable for damages. All rights,
including rights created by patent
grant or registration of a utility model
or design, are reserved.
Replaces: Ver.5 English
Doc. Gen. Mar/2014
8300096037 VER.6
Document revision level
The document corresponds to the version/revision level effective at the time
of system delivery. Revisions to hard copy documentation are not
automatically distributed.
Please contact your local ESAOTE office to order current revision levels.
Disclaimer
The installation and service of equipment described herein is to be performed
by qualified personnel who are employed by ESAOTE or one of its affiliates
or who are otherwise authorized by ESAOTE or one of its affiliates to provide
such services.
Assemblers and other persons who are not employed by or otherwise directly
affiliated with or authorized by ESAOTE or one of its affiliates are directed to
contact one of the local offices of ESAOTE or one of its affiliates before
attempting installation or service procedures.
Part 0 Table of Contents
Part 4 System 11
Overview _____________________________________7
Strategy ____________________________________ 11
General ______________________________________7
System functionality ............................................................... 11
Distribution ............................................................................... 8
System Error Message List .................................................... 12
Suggestions for use ................................................................. 8
Type .............................................................................. 12
Strategy .......................................................................... 8 Source ........................................................................... 12
Procedures ..................................................................... 8 Error .............................................................................. 13
Repair ............................................................................. 8 Broken Modules Identify ......................................................... 40
Index ............................................................................... 8 Procedures __________________________________ 42
Part 3 Service Policy 9
Recording files introduction .................................................... 42
MRI Product Line Support Center ________________9 Rec File Examples ........................................................ 43
Service Rec File Plot introduction ................................. 47
Sales and Service Administration ............................................ 9 System Check ........................................................................ 48
Orders ...................................................................................... 9 Description .................................................................... 48
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General problems regarding noise ............................... 54 VISTA Operating System Activation .............................. 79
Detecting artifacts on images ....................................... 55 With PC Unit DG43NB Core2 Quad or older ................ 80
Change SDSP card .............................................................. 103 Change RFA unit .................................................................. 114
Change ACM module ........................................................... 103 Test and Adjustment Table ____________________ 115
Test and Adjustment Table ____________________104
Part 9 Patient Handling 117
Part 8 RF Subsystem 105
Trouble shooting strategy _____________________ 117
Trouble Shooting Strategy ____________________105
Procedure __________________________________ 117
General ................................................................................ 105
Part 10 Gradient 123
Procedure __________________________________105
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Part 1 Introduction
Overview General
Parallel to the advent of a whole new generation of MR systems, a This register contains an introduction to the service manual: what the
totally new service support philosophy is dawning, matching and service manual contains and how it can be best used. It will also
tailored to the modularity and efficiency of the latest hardware attempt to present how the service manual and FUN are coupled
technologies incorporated into this advanced line of machines. In together and complement one another. Here you will find a general
keeping with this progress of newer and enhanced designs, it has explanation of the concept structure, the various sections comprising
become not only feasible but necessary to adapt to a service strategy the service manual and how they can be used most effectively for
making failure isolation and repair as economical as possible. In line trouble-shooting and repair.
with these trends, we have attained a level of service friendliness The contents of the service manual will support service technicians
never before achieved. This introduction to the TSG documentation is during on-site trouble-shooting and faulty component isolation. While
designed to give you an overview of this new trouble-shooting concept the instructions are not a substitute for an in-depth knowledge of the
for the system. system, its components or the underlying physics, they will facilitate,
on the one hand, trouble-shooting procedures for the less
NOTICE Any installation, assembly, maintenance, experienced technician and, on the other, support the more
extensions, regulation, modifications, or repairs experienced technician in performing essential measurements and
must be carried out by authorized personnel only. tests. The instructions will also explain standard procedures such as
measurements of power supplies, etc.
The service manual should not and does not take the place of an
CAUTION The Instruments used to perform calibrations error catalogue. In most cases hardware faults are easily and quickly
and or measurements must have an adequate located. Intermittent errors require more time and patience.
accuracy and must be calibrated (refer to the
Manufacturer’s user manual). It is not within the scope of the service manual to list all possible tests.
Its purpose is to support the search for frequently occurring errors, to
allow the technician to limit the error search to certain functional
groups, and to propose measurements for localizing a faulty
component.
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We are aware that the first versions of this manual do not provide the Procedures
reader with an entire spectrum of information. The manual will be
updated accordingly in the future. Any feedback is strongly Here the CSE will find detailed test instructions. You will also find
encouraged and will be warmly welcomed to provide you with the descriptions for “standard procedures” - for example, starting the
tools you need. We need your help! system tests, connecting the laptop to the Host, reading log files, etc.
This section also contains descriptions for interpreting the test results.
Furthermore you will find general information pertaining to parts
Distribution location, fuse ratings, power supply information, measuring points,
The goal is to distribute the Online-documentation as well as the descriptions of LEDs and potentiometers in this section.
paper version to the MR CSE's via a distribution list. This means that
in the future this documentation will no longer be delivered with the Repair
system.
If a module needs to be replaced, procedures for its replacement and
subsequent necessary adjustments are described in this section.
Suggestions for use
The information for the different system components has been
Index
subdivided into: An index at the end of the book provides you, in addition to the table
– Test Strategy of contents, with cross-references, to inform you about topics that you
– Test Procedures may wish to look into for further information. It is a helpful source of
information when looking for related topics when you want to
– Diagrams concentrate on items of interest. For example, if you would like to
– Repair and Adjustment Procedures know more about the “adjust frequency” you could either look under
“A” for “adjust” or “F” for “frequency”. Many topic listings are
Strategy redundant to help make your search more successful.
The flowchart is designed as a general guideline for selecting the
appropriate trouble-shooting procedures.
The objective of the accompanying descriptions is not to give detailed
step-by-step instructions into the finer art of trouble-shooting, but to
offer a means of guiding you, given a particular problem, to the right
test procedure, briefly and simply. If more detailed instructions are
necessary, then the CSE will be referred to the appropriate
procedures in the section “Test Procedures”.
Part 2 Service Policy
Fax: +39106547433
NOTICE For procedures and info please refer to the
ESAOTE restricted web site where you’ll be able Esaote S.p.A
to find the complete Service Policy Via Albareto, 11
16153 Genoa, Italy
MRI Product Line Support Center
The Support Center provides all general activities targeted to support Sales and Service Administration
the service personnel on the field when carrying out the installation, The entire Service Administration is managed through your Sales
maintenance and repairs of the ESAOTE MRI systems. Area Manager. Responsibilities include:
The specific service activities and responsibilities are: ● Spare Parts Price List
● Service Manuals ● Order Processing
● Service Information ● Repair Administration (invoices and shipments)
● Service Training
● Spare Part Price Lists
● Part repairing process Orders
● On-line support (e-mail, phone, fax, etc.)
Orders shall be issued to the Export Sales Department according to
The Support Center is currently open from 8:00 a.m. to 5:00 p.m. ESAOTE general rules and your Spare Parts Price List.
(local time) between Monday to Friday, excluding Public Holidays and
ESAOTE summer closing period (usually three weeks in August). Items not included in Spare Part Price List cannot be ordered to
ESAOTE.
All communications with the center must be in English at these
addresses: All orders are subject to ESAOTE approval and orders below 250
Euro are not accepted.
E-mail: MRI.Service@Esaote.Com
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Repairs Tab. 1: The Ser/N of these modules must be written in the Trouble Report
In this chapter you will find test strategies encompassing the complete
system.
System functionality
All modules present in the system are necessary for different
processes.
You must know how the system is composed and how it works in
order to identify any kind of trouble.
You can identify some different chains:
● Gradient driving
● Transmitting coil driving
● Receiving driving
● Thermal control
● Images visualization and storing
You can perform different tests for every chain to identify the defective
modules.
A detailed description of the different chains and the different tests is For more detailed schemes about the system internal connections,
given below. please refer to the Installation Guide, System Installation Chapter.
The most useful and powerful test is the System Check test.
In the next figure, the module positions and connections are shown.
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CAUTION Please communicate the complete error code “14” GRAD_DELAY “54” DELFILEINTMP_SCRIPT
the ESAOTE Service Dep. for assistance “15” TAR_FQOFFSET “55” COPYRAWIMG_SCRIPT
“16” TAUTO_FOV_XYZ “56” 4TH_CH_EFF_SCRIPT
Type “17” TAR_FIELD “57” DOWNLOAD
“18” TAR_OFFGR “58” DOWNLOAD_ACM
● “1” “Errors” WARNING: there is a recoverable error and the user
“19” RING “59” DOWNLOAD_TCM
can continue to work; the operator must decide whether he wants
to continue (button “Yes”) or not (button “No”) “20” COI_SERVER “60” DODATAFITTING
● “2” “Errors” ERROR: the control is turned off and an “21” 4TH_CH_POL_SCRIPT “61” TAR_ALGOFFCENTERSLICES
unrecoverable error is indicated; the operator must click the “22” MEASURE_EC “62” TAR_ANALYSEENCODING
“cancel” button to exit the message window “23” ITER_EC “63” RESETTABLE_SCRIPT
● “3” “Syncs” SYNC: is a synchronization message among the “24” BFIT_EC “64” CHECKFSEREWCOD_SCRIPT
different software modules “25” CURR_EC “65” CHECKPREDEFRANGE_SCRIPT
“26” MIS_DIST_EST_EC “66” TAR_ALGOFFCENTERSLICESTIME
Source “27” FILLHEADER_EC “67” TAR_DIFFPHASESLOPE
“28” SPECIFTAB_CLIENT_EC “68” TAR_PHASESLOPEEXT
“29” MOVERAWIMG_SCRIPT “69” TAR_GUASWP
From 0 to 39 From 40 to 73
“30” DELRAWIMG_SCRIPT “70” TAR_NOISELEV
“0” LEGACY “40” TARAT
“31” RENAMERAWIMG_SCRIPT “71” TAR_SEARCHBYFIT
“1” COI_SHELL “41” MERGERAWDATA
“32” SETPREDEF_SCRIPT “72” TAR_PHASEMEASURE
“2” AUTOTARAT “42” CHANNEL_DELAY
“33” RESETPREDEF_SCRIPT “73” TAR_TARSLICESPHASE
“3” NOISE_LEV “43” TAR_FSE
“34” SAVEPREDEF_SCRIPT
“4” TAR_MAX “44” TAR_RAWDATA
“35” COPYEDDYDIR_SCRIPT
“5” TAR_RF “45” TAR_DPHRFA
“36” SAVETMPREC_SCRIPT
“6” TARMAN “46” CHECKANGLE_SCRIPT
“37” COPYTMPARASREC_SCRIPT
“7” TAUTO_FOV “47” TAR_PHASESLOPE
“38” DWL_SERVER
“8” TGUAD_SWP “48” TarFSE
“39” DSP_CLIENT
“9” VIEWTEMP “49” TAR_ADJDYNAMIC
Error
CAUTION THE ERROR LIST CONTAINS MESSAGES RELATED TO ALL THE MRI ESAOTE SYSTEMS AND NOT ONLY THE ONE
DESCRIBED IN THIS SERVICE MANUAL
NOTICE By selecting the LogViewer tab (OPI bottom bar) it's possible to read which calibration or operation done by the System failed
NOTICE Always verify the LEDs status of the HW component involved in the system chain related to the detected error
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● 156HW ALARM DETECTED: re-boot the system and repeat the – GRA Failure ===> [Label:
Command/Operation that went wrong, check the functionality and 'IDL_Error_ServiceMeasure_GRA_STOP' no Service Measure
in case replace the module indicated in the error message: specified.]
– TCM Failure ===> Check led status on TCM module – RTK Failure ===> Check power cable, optical fibers, RTK
– ACM failure ===> Check the Electronic Unit Module led status, – Scan failed ===> Check REC files
check system functionality (e.g.: system check), check system – Alarm data to ACM not sent ===> Check GRA and ACM led
connections, check led status on ACM module, replace the status
module indicated
– GRA SYNC is missing ===> Check diagnostic LEDs on GRA
– RFA fail ===> Check led status module
– ACM failure ===> Check the Electronic Unit Module led status, – [Label: 'IDL_Error_Description_GRA_SUPPLY_FAULT' no
check system functionality (e.g.: system check), check system Description found for language: English] ===> Check system
connections, check led status, replace the module indicated functionality (e.g.: system check), check magnet temperature
and system connections, replace the module indicated
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– GRA fan failure or over temperature. ===> GRA module – Sensor left center failure ===> Check the sensor and all its
overheating or GRA fans fault, check LEDs status, check GRA connections
fans, check the power supply – Sensor left up-down failure ===> Check the sensor and all its
– GRA enable control missing ===> Check optical connection and connections
ACM module led – Sensor left front-rear failure ===> Check the sensor and all its
– Channel oscillation ===> Check the connections to the gradient connections
coils include FILGRA if used – Sensor right up-down failure ===> Check the sensor and all its
– Excessive current per duty cycle ===> Check LEDs status connections
– Short circuit in GRA outputs channel X ===> Check the – Sensor right front-rear failure ===> Check the sensor and all its
connections to the gradient coils include FILGRA if used connections
– GRA Thermal Enable missing ===> Check the system thermal – TCM FAN Failure ===> Check fans functionality
control – TCM fast heating on ===> Check that the magnet is cold
– GRA trimmer not loaded or wrong DAC timing ===> Check – TCM Heater Right Failure ===> Check an overload or a short
GRA, optical fiber, ACM, DSP circuit on the heater
– Wrong DAC calibration ===> Check LEDs status – TCM Heater Left Failure ===> Check an overload or a short
– GRA halted ===> Check LEDs status circuit on the heater
– GRA output overload ===> Check the connections to the – TCM Heater Down Failure ===> Check an overload or a short
gradient coils include FILGRA if used circuit on the heater
– Short circuit in GRA outputs channel Y ===> Check the – TCM Heater Up Failure ===> Check an overload or a short
connections to the gradient coils include FILGRA if used circuit on the heater
– Short circuit in GRA outputs channel Z ===> Check the – Alarm data to ACM not sent ===> Check RFA and ACM led
connections to the gradient coils include FILGRA if used status
– Short circuit in GRA outputs 4th channel ===> Check the – RFA Fan failure ===> Check fans functionality
connections to the gradient coils include FILGRA if used – RFA high voltage circuit failure ===> Check RFA power supply
– Watchdog expired on GRA Dsp GR ===> Reboot the system – RFA auxiliary voltage circuit failure ===> Check RFA aux power
– TCM global failure ===> Reboot the system supply
– TCM DSP fatal error ===> Check the optical fiber, check DSP – Duty cycle of gate RF out of safety range ===> Check optical
– Sensor up failure ===> Check the sensor and all its connections fiber, ACM, DSP
– Sensor right center failure ===> Check the sensor and all its – Timing of RF gate out of safety range ===> Check optical fiber,
connections ACM, DSP
– Sensor down failure ===> Check the sensor and all its – Direct power out of range ===> Check the efficiency and the
connections calibration of the TX coils and related connections
– Reflex power out of range ===> Check the efficiency and the
calibration of the TX coils and related connections
– Over temperature of RFA module ===> Check optical fiber, RFA,
fans
– ACM clock not running! ===> Check ACM power and led status
– Failure on ACM/DSP optical link ===> Check ACM/DSP optical
fiber, DSP and ACM boards
– ACM fan 1 failure ===> Replace ACM fan 1
– ACM fan 2 failure ===> Replace ACM fan 2
– ACM fan 3 failure ===> Replace ACM fan 3
– ACM/GRA or ACM/TCM link failure ===> Check ACM/GRA or
ACM/TCM optical fibers, ACM GRA TCM led status, GRA TCM
power
– Failure on PXA270 processor ===> Check ACM led status, DIM
display image
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Broken Modules Identify – RFA: RF amplifier malfunctioning (duty cycle over 25% and/or
reflected power greater than 40 watt). Not significant when
Some criteria to be followed in identifying the module that needs RFA-OFF is present.
replacing in the event of a malfunction are described below.
– TCM: direct power supply failure to the TCM module. This event
A malfunction involving the CPU, HD, SVGA, monitor, keyboard, may also be due (as well as to the fuse being blown or to a
mouse and optical disc should be immediately obvious since their disconnected 220 V AC-cable etc.) to overheating of at least one
operation (or failure) is plainly “visible”. side of the magnet. This failure is detected by the temperature
If the message “Non recoverable error. Scan disabled” appears this sensors (2 NTC in series) located on the side, or by a short
means that the software has found problems with one of the Digital circuit or an open circuit on at least one of the four groups of the
Signal Processor modules (SDSP). Repeat the bootstrap and NTC sensors.
carefully check if WIN2000 has started. The only correct messages After verifying that the standard part of the PC (successful completion
relative the SDSP are the correct ones: of the bootstrap routine without any error messages) and the power
– “SDSP0 (or 1) initialization done” modules (GRA, RFA and TCM are operating correctly, with the
Instead if the following messages appear, the SDSP needs replacing: diagnostic alarms), you can proceed to run the <System Check>
diagnostic.
– “Test memory failed”
If the plot operates correctly, it is safe to assume that, generally
– “SDSP1 unit 0 not present at address 0 x 360"
speaking, the control subsystems (TCM) and the acquisition
If the bootstrap routine was completed successfully, you are advised subsystems (ACM) are operating correctly too.
to run the alarm diagnostics. With this procedure, you can check
In particular, it is best to first display the values relative to the driving
whether amplifiers (GRA and RFA) and TCM are operating correctly.
of the receiving subsystem which are generated and monitored from
In the event of a malfunction, a message appears identifying the failed
within the module ACM.
module. The acronyms used have the following meanings:
Their correct behavior confirms substantially that acquisition is
– GRA-OFF: direct power supply failure to the gradient amplifier.
operating correctly.
This event may also be due (besides to the fuse being blown, or
a disconnected 220 V AC cable etc.) to failure to receive
acknowledgement from the TCM module.
– GRA: gradient amplifier malfunction (failed PLL connection of its
internal switching amplifier and/or output voltage clamp). Not
significant when GRA-OFF is present.
– RFA-OFF: direct power supply failure to the RF amplifier. This
event may also be due (as well as to the fuse being blown, or
disconnected 220 V AC cable etc.) to overheating of the
amplifier (T > 50 °C).
Fig. 3: System Check, X Gradient As for the receiving chain, you are advised to use the standard
machine settings (central frequency search, noise level, S/N for the
various receiving coil and sequence calibration, etc.).
From <System Check> you can also verify the correct operation of
“Gradients” and “RF Pulse”. Regarding the RF pulse, you must know
the correct amplitude ratio between transmitted and reflected RF
pulse (Pd/Pr>4) which shows that the connection is correct and that
the transmitting coil (BTX) tuning is correct. Conversely, the absence
of the RF pulse may be due to:
A malfunction of the ACM module: if, for instance, the module is not
receiving power (fuse, cable, etc.).
Bad tuning of the transmitting coil. If the ratio is about 1 (i.e. all the
power is reflected), the problem could be due to a bad connection
between RFA amplifier and transmitting coil or a broken component
inside the transmitting coil. For example the central capacitor on the
tuning circuit inside the “gantry”.
A wrong value of the frequency set in the “Homogeneity” calibration.
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Procedures To have access to the rec files, open the Internet Explorer and, from
the home page, open the Rec File Management folder then View
Rec Folder: from this page you have to select the interested day,
Recording files introduction opening it the system will show the compiled rec files.
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Gdelay.rec
This file contains the Gradient Delay values calculated by the System
during the automatic procedure.
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Fig. 17: Example of selective noise with a given frequency Fig. 18: Example of frequency modulation
Fig. 19: RX Chain test, FFT visualization
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General problems regarding noise fact, it has often been noted that, if the grounding problem is solved,
the average-fft level decreases to a normal value (around 500).
This section covers some problems regarding high noise levels in the
system room and their possible solutions. A short list including things to be avoided during installation is given
below:
These kinds of problems could be generated by several things, such
as: the power line cable lacking a good filtering system, network lines – Power lines without an UPS system
to transmit data between different computers, the laser camera – Power lines must not pass close to the system
installed close to the system or any other source not perfectly – A layout of cables that creates a coupling between them
shielded. In all these cases, the normal noise level increases until it – Avoid putting other kinds of instruments in the same room, such
exceeds the warning noise threshold, to the detriment of the quality as a personal computer, laser printer, mediator, etc.
and resolution of the images so obtained.
– Ground cables wrongly connected or bad central ground
This is to say that everything (line cables, personal computer, network
A method to understand how the noise level changes during the day
cable, central phone line, etc.) in the room must be checked very
is described, so it will be possible to look at noise variations in real
carefully before installing the system to avoid any problems after
time. Here are the operations useful for this check:
installation.
● Put the homogeneous phantom inside the knee coil
Therefore to reduce the noise level in the room, you must ascertain in
advance which are the possible causes of the problems by acquiring ● Inside the ARAS program select <Test> <Manual> <RX Chain>
images in different conditions. For example, this can be done by menu then <Run>
turning off all possible sources of problems, step by step, then ● set the <FFT> modality
checking the average-fft value by clicking on the <Shielding> in the ● Set the Y-axis to 1 K. It is thus possible to visualize the noise peak
<Automatic> service menu. If the problem has not been identified better. In this modality two kinds of noise may occur
yet, proceed by making sure that all power lines use a line filter, that
● Selective noise with a given frequency: a single peak will be
there are no other critical instruments in the system room and that
displayed at that frequency; the higher the dB of the noise the
every ground cable of the machine is properly connected.
higher the peak
With regard to these problems, we recommend putting the power line
● A large bandwidth noise (white noise): the whole level of the signal
through an UPS system, so that the power line that arrives at the
increases; this means that the noise in the room is too high
system or at other instruments is without noise, without selective
interference or noise with a large bandwidth. ● To improve the signal display, click on the <Average> button and
set a number around 20
Another critical factor for the noise level is the presence of personal
computers or other instruments that could create some interference When the previous operations are completed verify if the level of the
by increasing the noise level. This noise could be selective signal is close to 1 K (first step) of the vertical grid, or if the “May”
interference (lines on the images) or, more likely, white noise (noisy variable in the information window has a value of around 1350, that
images). However, in any case, the image quality decreases means that the noise level is good (average-fft less then 500).
significantly. On the contrary, if the level is higher, then you can carry out two
Both the machine ground and the central ground must also be different trials:
checked, because they sometimes generate problems. As a matter of
● Verify the noise level putting a Dummy cup in the suitable support Consider that some related problems (for instance lines, spots, etc.)
supplied in the Gradient Tuning Kit may be caused by:
● Verify the noise level when a patient puts a limb inside the coil – RF external frequencies
Regarding the first case you can reach this conclusion: if the noise – RF frequencies within the system due to the failure of any
level is again in the specifications with the Dummy cup, this means hardware modules
the problem could be external, otherwise some parts of the
Electronics unit would create a rise in the noise level. Check each
module and cable, one at a time. Fig. 20: Radio frequency probably due to external factors
If the problem is external you must check as described in the previous
points. In fact when a patient's limb is inside the coil every external
disturbance is increased, because the patient acts as an antenna.
Therefore, at first you must check to see if the shielding parts are
correctly applied to the patient and if each ground cable is fixed, then
check what source could create the rise in noise.
If you find something such as a personal computer, telephone or laser
printer, that could be a source of noise, you will probably have to
apply the solutions described previously, decreasing the noise level in
the room (average-fft value around 400) until good quality images are
obtained.
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Consider that some related problems, for instance ghost images, may – Thermal instability of the system;
be caused by: – Fluctuation of the signal due to DC magnetic interference;
– Phase and quadrature offsets a long way out of the zero level – Fluctuation of the signal due to miscellaneous HW problems.
– Fluctuation of the signal due to external fields at about 50/60 Hz
and 16.6 Hz
Fig. 22: "Blurring" artifact probably due to external DC
Consider that strong spikes in the power line may cause some
problems, such as the “moire” artifact.
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The scout lines are useful to identify the center of the FOV area where Shielding efficiency
the interested anatomy must be set
The purpose of this test is to check that no external noises are
present, such as radio-frequencies which would generate lines or light
Fig. 25: Wrong Patient’s set up spots on the image. Moreover, the procedure checks that the noise
level does not exceed a pre-set threshold value.
Operations
● Position the knee coil 1 with the geometrical phantom placed in
axial position
● From the ARAS program select <Tests> <Automatic>
<Shielding> then <Run>
● Look at the message sent by the calibration procedure. If this was
not successful, do not continue, but rather check the store file
“noise.rec”
● Exit by clicking on <OK> button
In the event of noise or of signal spikes exceeding the threshold
(threshold_f), the program indicates their position (co-ordinate, range
1 to 256), amplitude and frequency.
In the event of persistent interference, on-site measurements must be
taken exactly like those taken before installation. In addition, you must
check that noise is not generated by the Electronics. You must also
make sure that any type of lines or spots does not damage the
images. For this reason, some test scans must be taken.
Conversely, if the noise level exceeds the threshold, it is likely that the
receiving chain is malfunctioning or not properly calibrated. Please
note that the cause of this might be white noise picked up directly by
the coil.
Therefore, you are advised to check that there are no possible
sources near the machine and that the shielding is properly sealed.
The noise level is represented by average_fft, whose threshold value
is written in the software and has been set taking into account the
situation of the first machines. Please note that this calibration may
also be performed from the operator's interface as a diagnostics scan.
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Repair
In case of not perfectly shielding efficiency, replace the shielding
boots, check all the system grounds and if necessary provide a
dedicated ground.
If the image problems are generated by magnetic interference refer to
the installation Guide, Magnetic Compensation Chapter to
compensate them.
Part 4 Software
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Restore
To restore the User's images from the created backup, act as
described:
Restore
NOTICE The restore procedure erase the images
● Log on the system like SERV (typing the correct password) and contained on the system Hard Disk.
launch Internet Explorer
The restore procedure works only if on the
● Insert the back up (created during the Backup procedure) into the
system Hard Disk and on the Backup DVD is
available drive
present the same SW Release and on the same
● From the Internet Explore home page, select Configuration System that created the Backup DVDs
Management and Backup & Restore
● Follow the SW indications ● Log the system as SERV and type the correct password
● Launch the ARAS program
● Select TOOLS and Images Restore
● Load the images from the backup DVD
Repair ● When the sentence “Press any key to boot from CD or DVD...”
appears press ENTER
● The system loads some files automatically for some minutes then
Complete Software installation a DOS style window will appear: do not interact with the system!
This chapter describes how to install the system software in a new ● Wait for the “E-MRI Image Restore” window and press the button
system with an not formatted hard disk or in a system with a “BIOS Update”: the system reboots and then loads some files
pre-installed software version. automatically. When completing switch off the system
● Switch on the PC and press and release the F10 key, do not hold
it, until the Bios boot mask is shown (enter the correct Service
CAUTION Use this procedure only if the procedure password) (F2 key to enter in the Bios setup)
contained into the Installation Guide, Software
● In the Bios boot mask, select the DVD drive in order to perform the
chapter doesn't work properly or in case of HD
boot from it and then press ENTER
failure or in case of OPI incorrect starting
● When the sentence “Press any key to boot from CD or DVD...”
appears press ENTER
CAUTION All the data contained into the HD will be lost
● The system loads some files automatically for some minutes then
during the installation of the Operating System
a DOS style window will appear: do not interact with the system!
● Wait for the “E-MRI Image Restore” window and press the button
“BIOS Configuration”: the system reboots and then loads some
files automatically. When completing switch off the system
Mother Board BIOS Update and Setting
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● Disconnect the network cable and switch on the system ● When the sentence “Press any key to boot from CD or DVD...”
● During the boot, press and release the F10 key (do not hold it) appears press ENTER
until the BOOT mask is shown
● Take the “ESAOTE Windows VISTA Ultimate Image” DVD
CAUTION During this procedure the previous sentence
provided with the System and insert it into the drive
may appear many times: boot from DVD only
● From the BOOT menu, select the boot from S-ATA CD-DVDW and when specifically requested by the procedure!
press ENTER
● The system loads some files automatically for some minutes then
Fig. 27: Boot Selection Page a DOS style window will appear: do not interact with the system!
● Wait for the “E-MRI Image Restore” window and insert in the field
“PC Serial Number” the Manufacturer serial number of the PC
Unit (not the ESAOTE one), then press the button “Restore” and
confirm the action by pressing the OK button in the next windows
Fig. 28: HTML Page Fig. 29: Vista PC Unit
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Fig. 30: PC Unit Serial Number Insertion (the shown code is just an Fig. 31: Start of Loading Procedure
example)
Fig. 34: Vista Installation: click on System properties Fig. 36: Vista Installation: click on Hardware and Device Manager
NOTICE The “!” and “?” signs identify the not correctly
installed peripherals
● In the previous figure the VGA card is not properly installed so the
correct drivers must be loaded. Here following a short procedure
to correctly install the peripheral drivers is provided, use it only if
necessary basically when the drivers are not automatically
installed, as in this example for the VGA card
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– When the window called “Update Driver Software” appears, – In the window “Search for driver software in this location:”
click on the button Browse my computer for driver software confirm this action by pressing the NEXT button
– In the window called “Browse for driver software in your
computer” insert the driver path location such as “$:\Drivers\...” NOTICE The symbol $ must be replaced with the DVD
(... means that you have to insert the correct path name burner letter, normally is D
according to the peripherals you are installing; e.g.: DSP for the
SDSP card, VGA for the VGA card, LAN for the LAN card etc.) or
you can select only the drive and then click on the NEXT button – If the window called “Windows Security” appears warning you
to start the auto search function that “Windows can't verify the publisher of this driver software”,
click on the button Install this driver software anyway
– After the driver installation, close the window by pressing the
Fig. 39: Vista Installation: selecting the drivers path CLOSE button
● Switch on the System and perform the log on like user ESAOTE
typing the correct password (inserted in the VISTA settings)
● Close the “Welcome Center” window if opened
● Insert into the drive the DVD containing the ESAOTE software ● In the “User Account Control” window that warns you that a
release and after few seconds, when the “Auto play” window software is attempting to run, click on the Allow button
appears, click on the Run Setup.exe button
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Fig. 42: User Account Control - Select Allow ● The procedure will ask you to start the OP SP installation by
clicking on the OK button
SOURCES
– DVD / CD-ROM
● When the HTML page appears, you'll have different choices
available ÖTo install the OS SP from this drive
● Select the OS SP installation and the system will ask you to insert – FTP
the code XXXX then click on the OK button to confirm ÖTo install the OS SP via FTP (not available in this release due
to the size of this OS SP)
NOTICE The SP installation code is not written in this – M.O Disk
manual as all the necessary passwords. ÖTo install the OS SP from this drive (only for factory use)
Send an e-mail to mri.service@esaote.com to
know them all BUTTONS
– Proceed with OS SP Installation
ÖTo install the OS SP Fig. 45: Operating System SP Installation
– Check device for OS SP
ÖTo verify if the ESAOTE SW Release is present in the selected
drive
– Restart OS SP Procedure
ÖTo re-install the OS SP in case of problem during the first
installation
– Exit
ÖTo leave the OS SP installation window
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● Perform the log on as SERVCFG and when the next window NOTICE The SW installation password is not written in this
appears click on the NEXT button manual. To know it, send an e-mail to
mri.service@esaote.com
Fig. 52: SW installation point 4 Fig. 53: SW installation point 5
● Insert the system own data or the generic data as shown in the
next figure, remember that the system serial number must not
start with 0 (zero) then click on the NEXT button
● Select the correct system hardware release you are installing then
click on the NEXT button
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● Check if the inserted data are correct and click on the INSTALL
button to proceed with the OPI installation otherwise go back
clicking on the BACK button to change the inserted data
● The procedure goes ahead automatically. Don't interact with the
system till that the log on mask is shown.
● After the re-boot, you must perform the log on in this order:
Fig. 56: Firmware Upload Step 2 VISTA Operating System Activation
With PC Unit DH55DH Core i5 or newer
Starting from the BIOS VERSION ENB7510H. 86A. 0032. 2012.
0710. 1855 (present in the Image DVD for Windows Vista Loading
Code 301002305) the PC unit automatically active windows VISTA
without any extra operation.
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With PC Unit DG43NB Core2 Quad or older ● In the window that requests to confirm the activation press the OK
button
VISTA Operating System Activation ● The procedure is finished, proceed with the System restore or
data inserting and/or calibrations
The activation of the operating system must be performed only after
the completing of all the software installations (operating system VISTA Via phone activation Using the Windows VISTA Sticker
patch and ESAOTE software release). The activation can be done
● Disconnect the network cable
either via web or via phone, obviously the first one is much faster but
requires that the system will be connected to the web directly or ● Switch on the system and perform the log on as SERV
through a proxy. Contact the Hospital IT administrator to identify ● Wait for the OPI complete initialization (green light) and then close
which web connection is available and the proxy and port value you it by clicking on the X window icon
have to insert (if necessary). ● Select Start, Programs, Windows Activation and in the window
Please be advised that there are different procedures according to the “May you connect to the Internet?” select NO and press the NEXT
Microsoft License sticker attached to the PC unit: VISTA or 7. button
● Click on Continue to confirm the execution of the requested
VISTA Via web activation Using the Windows VISTA Sticker feature as administrator
● Switch on the system and perform the log on as SERV ● When the window “Activate Windows Now” appears, click on the
● Wait for the OPI complete initialization (green light) and then close Show me other ways to activate button and in the window “How
it by clicking on the X window icon do you want to activate windows” click on the Use the automated
● Select Start, Programs, Windows Activation and in the window phone system button
“May you connect to the Internet?” select YES and press the ● When the window “Find available phone numbers for activation”
NEXT button appears, select the country you are and than press the NEXT
● In the window that requests “Do you need a proxy to connect?” button
select: ● Call the Windows Activation Call Center and follow the provided
– If you have a proxy: YES and insert the proxy and port values instructions than in the “Activate windows now” window”, insert the
than press the NEXT button activation code provided by the operator and press on the NEXT
– If you don’t have a proxy: NO than press the NEXT button button
● Click on Continue to confirm the execution of the requested
feature as administrator
● When the window “Activate Windows Now” appears, click on
Activate Windows online now and the window “Activating
Windows” will be shown for some seconds
● When the window “Type a different product key for activation”
appears, insert the activation code present on the label stacked on
the PC case and press the NEXT button
Fig. 58: Vista Activation (the shown numbers are just an example) VISTA Via web activation Using the Windows 7 Sticker
● Switch on the system and perform the log on as SERV
● Wait for the OPI complete initialization (green light) and then close
it by clicking on the X window icon
● Select Start, Programs, Windows Activation and, in the window
“May you connect to the Internet?”, select YES and then press the
NEXT button
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– If you don't have a proxy: NO than press the NEXT button Fig. 61: Vista Activation
● Click on Continue to confirm the execution of the requested
feature as administrator and wait for the window shown in the next
image
● The system will show the following window advising that the
inserted code is already in use and providing different chooses
● Select the “-> Use the automated phone system to activate” ● Select your country (“Italy” in this example), press the NEXT
choice by pressing it with the mouse and the system will show the button and the system will show the following figure
message shown in the next figure
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84
● Call the provided toll-free number to interact with the automated ● When done press the NEXT button and the system will verify the
call center: follow the instructions (the keys you should have to inserted code showing a correct or incorrect validation message
enter are in sequence “2”, “1” and “#”) till to insert the 9 codes ● This procedure is over
present in the shown 9 fields (previous figure), when done the
automated call center will provide the activation code: insert it in
the 8 fields identified by letters (press the * phone button for
re-listening the code and # for next code) up to complete them all
as shown in the next figure
VISTA Via phone activation Using the Windows 7 Sticker ● Insert the VISTA code VWV86-KYGPP-GD89R-G8JY9-2H8KX (or
insert the code present on the sticker) then press the NEXT button
● Disconnect the network cable and connect it back at the end of the
procedure Fig. 67: Vista Activation
● Switch on the system and perform the log on as SERV
● Wait for the OPI complete initialization (green light) and then close
it by clicking on the X window icon
● Select Start, Programs, Windows Activation and in the window
“May you connect to the Internet?” select NO and press the NEXT
button
● Click on Continue to confirm the execution of the requested
feature as administrator and wait for the window shown in the next
image
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● Select your country (“Italy” in this example), press the NEXT ● Call the provided toll-free number to interact with the automated
button and the system will show the following figure call center: follow the instructions (the keys you should have to
enter are in sequence “2”, “1” and “#”) till to insert the 9 codes
present in the shown 9 fields (previous figure), when done the
automated call center will provide the activation code: insert it in
the 8 fields identified by letters (press the * phone button for
re-listening the code and # for next code) up to complete them all
as shown in the next figure
Fig. 70: Vista Activation
● When done press the NEXT button and the system will verify the
inserted code showing a correct or incorrect validation message
● This procedure is over
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Computer and Device checks Fig. 72: PC Unit and Card Positions (BEFORE MODEL 0PATSX)
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Onboard Device
MAIN
INFO Item Help
System Identification Information (no changeable)
System Date [xx:xx:xx]
System Time [xx:xx:xx]
USB FAN CONTROL & REAL TIME MONITORING
USB Legacy [Enable] Item Help CPU (CPU Header) Fan Speed Item Help
USB Port 01: [Enable] Inlet (Front Header) Fan Speed
USB Port 02: [Enable] Outlet (Reader Header) Fan Speed
USB Port 03: [Enable]
USB Port 04: [Enable] Processor Temperature [No changeable]
USB Port 05: [Enable] PCH Temperature [No changeable]
USB Port 06: [Enable] Memory Temperature [No changeable]
USB Port 07: [Enable]
USB Port 08: [Enable] +12.0V [No changeable]
USB Port 09: [Enable] +5.0V [No changeable]
USB Port 10: [Enable] +3.3V [No changeable]
USB Port 11: [Enable] PCH Core Voltage [No changeable]
USB Port 12: [Enable] Memory Voltage [No changeable]
Processor Core Voltage [No changeable]
SATA DRIVERS +3.3V Standby [No changeable]
Chipset SATA Mode [AHCI] Item Help
eSATA Port [Disable] CPU FAN
SATA INFO Fan usage [CPU] Item Help
Primary Temperature Input [CPU]
EVENT LOG Primary Temperature Input [none]
Clear Event Log [Disabled] Item Help
Event Logging [Enabled] REAR FAN
Fan usage [Inlet] Item Help
VIDEO Primary Temperature Input [PCH]
Video [No changeable] Item Help Primary Temperature Input [Memory]
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HD Switch on the system and perform some operations Insert back all the system data (using the system
back-up or manually)
VGA Switch on the system and perform some operations, check in Load correct driver and settings, no adjustment
device manager is the device is correctly recognized required
DVD Burner Try to receive or send some images from/to the drive, check in Check the jumper and deep switches settings
device manager is the device is correctly recognized
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This chapter contains the test strategies encompassing the complete Operation
control system. ● Switch on the system and perform the log on as SERV
● When OPI is open click on the “LOG Viewer” tab (bottom part of
the window) and check if the SDSP0 and SDSP1 circuits present
inside the SDSP card (contained into the PC Unit) are correctly
Procedure initialized (as shown in the next figure). If you read an error
message means that the card doesn't work properly
This part contains the exchange procedures and the necessary ● If the SDSP0 initialization is not completed (e.g. the program stops
adjustment procedures. Please observe normal safety precautions in at the line “SDSP 0 program started”) the problem could be in the
connection with the particular area in which you are working and data cable or in the ACM card. For example you can disconnect
overall safety precautions in general. This part is designed to provide the optical fiber cable and try to initialize the SDSP module without
to the field engineer an in-depth description of trouble-shooting the connection with the Electronics Unit. Verify also the integrity of
procedures for the complete control system. the optical fiber cable
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Fig. 75: SDSP1 and SDSP0 correct initializations Tab. 4: SDSP led status meaning (normal status means system in
stand-by)
● If the SDSP card is not correctly initialized try to verify the optical
fiber connections and check the LEDs status (they are located on
the SDSP card panel visible on the PC Unit back side)
ACM test Fig. 76: System check
Operation
● Switch on the system
● Under ARAS, select <Test> < Troubleshoot.> <System check>
● If no traces are present the ACM is broken
● Click on Channel field and select the gradients X, Y and Z. The
red trace is the output from the GRA; the blue trace is the input
from the ACM board.
– If the blue traces are flat, the ACM board is broken
– If the red traces are flat but the blue traces are present means
that the cable between the ACM board and the GRA module
could be broken, or the GRA is broken (or not powered) or the
GRA is disabled (by the TCM because the Magnet temperature
is incorrect)
– Remember that all the signals are collected by the ACM board
and if the trace is displayed on monitor doesn't mean that
reaches the module correctly! If only one red trace is flat and all
the other traces (red and blue) are present try to invert the ● Open the Electronics Unit and check the ACM led status meaning,
gradient cable, if you are able to move the problem to another in case of error count the number of blinking after a pause
channel means that the problem is after the GRA, if you are not
able to move it means that one channel of the GRA is broken
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Tab. 5: ACM led status meaning Fig. 77: ACM module (inside the Electronics Unit)
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commands are processed (multiplexed and synchronized) by the Another channel is used to modify the sampling frequency of the
ACM, then it processes the commands digitally and sends the driving acquisition subsystem (<Sampling rate>). It corresponds to the time
RF signal to RFA. It sends the GATE signal to enable the RFA as well. base of a regular oscilloscope and allows enlarging or reducing the
The RFA amplifies the RF signal (impulse) and sends it through RF pulse envelope. In this case too, before displaying the two signals,
RFOUT connector to the RFAOUT of the filter panel connected to the click on <Scale>, then select the <Dec> mode on the y axis, so that
BTX connector of the magnet panel (BTX, flexible pressed matter the values on the y grid will be expressed in Volts. The following figure
circuit, fixed inside GANTRY). On RFA there is another connector shows the RF pulse using <Dec. Div.> = 1 V and <Res. Div.> = 2.0.
called CONTROL connected (RFD cable) to the ACM module. Inside The window information shows the values in Volts of the transmitted
the CONTROL connector, there are the reference signals from (channel A) and of the reflected power (channel B).
reflected and direct RF power, GATE signal and ALARM signal.
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RX Coil Check
The easiest way to check if a receiving coil is working or not is testing
it into the Magnet and then trying another Coil.
Following the RX chain you can perform some checks directly on the
coil connectors of the Gantry in order to test if the Varicap voltage
reaches the coil and from the Coil check the cable continuities to the
Electronics modules.
Gantry connectors
Every coil uses the same connector to receive and send information
to the system; this connector is fixed in the Gantry inner part, LLMD
side, right lower.
The receiving coils are automatically connected to it when are
completed inserted into the Gantry till to meet the end of the
dedicated rails placed inside the Gantry.
Every receiving coil is identified automatically by the system by
reading the resistor value present in the coil base and their values
are:
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Repair
TX Coil Tuning
Refer to the Installation Guide, Tune-Up chapter, TX Coil Check
paragraph.
In the following figures the Coils and all the parts those compound
them are shown.
Fig. 84: Coil 1
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RFA Go to <Test> <Troubleshooting> <System check> and Check the TX Coil and calibrate the 180° Values
check if direct and reflect pulses are present. of all the Coils
COIL Try to acquire some images Tune the Coil to Magnet frequency, save the new
Varicap and 180° pulse values manually
GANTRY Try to acquire some images Check the TX Coil and calibrate the Varicap and
180° Values of all the Coils, GRA ECC Tune and
Automatic Shimming Gain Calibration
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Fig. 88: LCD Panel Hardware Components (910 3309 000 Rev.D)
Fig. 89: Seat Exploded Draw
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In this section you will find test strategies, procedures and repair
instructions encompassing the complete gradient system.
For more information refer to the Functional Description manual
Gradient chapter.
Procedure
Gradient driving transmitting chain
A description of the process and which modules are responsible for
the transmission process is shown in the following figure.
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Select the test and wait for the diascope, then click on the <Channel>
button and move the arrows to change the logical channel. When you
select channel 0, the first line at the top right corner of the monitor
shows the label “X Grad”; channels 1 represents the “Y GRAD”, and
channel 2 the “Z GRAD”.
The blue trace (real component) is the driving voltage of the gradient
amplifier's X channel (GRA module), measured at the output of the
ACM module, located in the Signal Box. The red trace (imaginary
component) is the output current of the GRA X channel, measured by
shunting a part of it from the corresponding final stage.
If the coil relative to the Y gradient is driven correctly, the monitor will
display this waveform (use the <Res. Div.> and <Dec Div>
commands to display the optimal dimensions) for both channels.
Please note that the GRA drive voltage (blue trace) must have a
rather square shape since it is driven directly by the D/A (except for
gains and offset). Whilst the output current (red trace), besides the
different gain value, shows overshoots and undershoots generated by
the eddy current compensation circuit located at GRA input.
Obviously, using the apparatus as an oscilloscope assumes that the
acquisition subsystem (consisting of the SDSP and ACM modules) is
operating correctly. Any problems with this subsystem must be
identified if, for instance, the oscilloscope behaves incorrectly
regardless of the selected channel.
If the blue trace (GRA input from ACM) is correct, but the red (GRA
output) is not, there is probably a problem with the gradient amplifier.
If the blue trace is not correct as well, probably the problem is in the
ACM module (or, more rarely, in the SDSP which programs the ACM).
Fig. 96: Gradient waveforms: IV Ch zoomed Use of the ECC Check
By running this test, the system will show you if the GRA is properly
working and if the eddy current are properly adjusted (if not run the
ECC Tune, for more info refer to the Installation Guide, Tune Up
chapter, GRA Check paragraph)
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Change Gantry
For replacing and tuning refer to the RF Subsystem Chapter of this
manual.
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Change Auto Shimming and/or Gradient Coils ● Remove the Gantry: it can be removed either from Front or Rear
side but cable connections are placed Rear side (LLMD side)
● Open the Magnet by removing all the plastic covers and front
metallic cover (refer to the Installation Guide, Mechanical
Installation chapter) Fig. 101: Remove the Gantry
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CAUTION Make sure you use only non-ferro magnetic Fig. 103: Thermal Chain
tools near the magnet. Do not place any other
ferro magnetic objects near the magnet (e.g.
the metal support for the transportation of the
magnet).
Be careful that screws, etc. or other foreign
metallic bodies do not fall into the equipment,
because they could cause a short circuit.
Be careful with the cables coming from the
unit: they should be positioned so that they do
not represent an obstacle otherwise they
could break, causing damage to the unit and
could be hazardous for both the patient and
operator.
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8300096037 VER.6 Magnet - Trouble Shooting Strategy
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132
Value at Value
Pin Ground Type
25° C at 36° C
1 8 Sensor up 23 KΩ 16 KΩ
2 8 Sensor Center right 20 KΩ 16 KΩ
3 8 Sensor down 23 KΩ 16 KΩ
4 8 Sensor Center left 20 KΩ 16 KΩ
5 8 Sensor right (front / rear) 23 KΩ 16 KΩ
6 8 Sensor left (up / down) 23 KΩ 16 KΩ
7 8 Sensor left (front / rear) 23 KΩ 16 KΩ
9 8 Sensor right (up / down) 23 KΩ 16 KΩ
Consider the reference values for the sensors above reported are
referring to 25° C and to the Magnet Ideal temperature. To perform a
correct data evaluation when may be the magnet is at different
temperature, it is necessary to know that the variation of the sensor
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8300096037 VER.6 Magnet - Procedure
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134
values is about 500 Ohms every 1° C, opposite in sign with respect to Fig. 105: Pinout of the NTC cables
temperature.
Please be aware that every channel is compound by a couple of
sensors (excluding Center Right and Left) in serial connection with a
fixed resistor value.
In the following table the heater resistor values are provided: use the
pin out to verify if they are properly working or if you are experiencing
short or open circuit.
Tab. 16: Magnet Internal Connection Table (refer also to the following figure)
Name Type
P3 + P4 Sensor up
P8 Sensor Center right
P9 + P10 Sensor down
P7 Sensor Center left
P11 + P12 Sensor right (front / rear)
P1 + P2 Sensor left (up / down)
P5 + P6 Sensor left (front / rear)
P13 + P14 Sensor right (up / down)
J4 Heater up
J1 Heater right
J2 Heater down
J3 Heater left
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8300096037 VER.6 Magnet - Procedure
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Fig. 107: Magnet Heater and Sensor Positions (Code 9103308000 Rev.3)
Repair Fig. 108: Opened Electronics Unit
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8300096037 VER.6 Magnet - Repair
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138
In this section you will find the strategies for trouble shooting on the
power distribution
Strategy
This chapter describes the test strategy for the Power Distribution
The green Power Light is located on the left side of the console.
If it goes off there is a problem in the main line or the light bulb.
● Check if the feeder circuit breaker is switched off
● Check if the main system fuse is interrupted
● Check if the secondary system fuse is interrupted
● Check if the insulation transformer input and output are correctly
set
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8300096037 VER.6 Power Distribution - Introduction
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140
The equipment must be permanently connected to the mains Power CAUTION All the mains power cables and the cables
supply: 100/110/220/230/240 VAC ± 10%, 50/60 ± 10% Hz, 1.3 kW from the console to the Electronics and from
(refer to the Site Planning Guide). the Electronics to the Magnet must be inserted
The mains must be equipped with a RCCB (Residual Current Circuit under the floor or into a dedicated duct (not
Breaker) even not dedicated. The RCCB is also called ELCB (Earth provided) that must be fixed to the floor
Leakage Circuit Breaker) or RCD (Residual Circuit Device) or GFI
(Ground Fault Interrupter). This device is for breaking a circuit
automatically when it senses fraction of an Ampere leakage current
flowing to earth in excess to predetermined amount.
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8300096037 VER.6 Power Distribution - Repair
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142
Introduction receiving coils and/or patient table. The product must be diluted by
5% in purified water or other water with similar properties.
3. leave the disinfectant solution to act for 15 minutes.
Disinfecting and Cleaning 4. rinse the disinfected surfaces with a clean cloth dampened in
Before describing the procedure for disinfecting and cleaning the purified water, taking great care that the solution does not drip
system, the Technician must be familiar with the following definitions: onto electrical contacts (cables, connectors) of the receiving coils
and/or patient table.
– DETERSION - Mechanical procedure for removing a high
percentage of microorganisms and organic/inorganic material. 5. clean all surfaces involved in the procedure thoroughly.
– DETERGENT - Substance that reduces surface tension
between dirt and surface to aid removal. NOTICE Wear single use gloves performing disinfecting,
– DISINFECTION - Chemical or physical process that reduces the cleaning and maintenance operations
degree of microbic contamination in the vegetative phase on
inert material.
– DISINFECTANT - Chemical process able to destroy pathogenic Maintenance Protocol
agents in the phase of development (bacteria, fungi, viruses).
This term indicates products to be applied on inanimate objects The system maintenance does not require any critical or difficult
(e.g. surfaces). operations, but some periodic controls those are summarized in the
Before to get in contact with system parts (e.g.: receiving coils, patient following table.
seat/bed, accessories, etc.) potentially infected by blood or organic
liquids, the following procedure should be carried out:
NOTICE This suggested maintenance plane is the
1. clean contaminated surfaces thoroughly using neutral pH factor minimum acceptable maintenance plan
detergent.
2. treat surfaces with a detergent solution with electrolytic
NOTICE Don't use alcohol to clean the system
chloroxidant base and 1.15% of active chlorine (e.g.
components
AMUCHIN®A), diluted to 5%. Apply the product by means of
soaked and wrung gauze, taking great care that the solution does
not drip onto electrical contacts (cables, connectors) of the
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8300096037 VER.6 Maintenance Instructions - Introduction
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144
TX signal control for See the Installation Guide, Tune-Up chapter every six
transmission coil months
Cleaning the gantry brush (or Extract the coil if present in the gantry and every six
compressed air clean the TX coil using the brush to remove months
spray) dust
Cleaning of the RX soft cloth, water, Extract the RX coils and remove any dust every six
coils and neutral detergent using the soft cloth and the neutral detergent. months
functionality test of Allow the detergent residuals to evaporate,
insertion in the then mount the coil in place and check
gantry functionality.
DESCRIPTION TOOLS & FORMS PROCEDURE FREQUENCY DONE N/A OK NOK
Cleaning the RX Coil Spray electrical Use the spray to clean the receiving coil every six
and Magnet contacts contact cleaner: Non contacts. Use one of the receiving coil to clean months
corrosive to metals, also the Magnet contacts. In presence of dust
no residue, no you may use compressed air first. DO NOT
rinsing USE THE SPRAY CLOSE TO THE MAGNET
SINCE THE SPRAY CAN COULD BE
ACTRACTED BY MAGNETIC FIELD
Patient seat control User Manual Check the wheel and brake functionality, if every six
necessary lubricate the wheel bearings months
Electronics Unit and Screwdrivers Phillips Following the standard procedure shut down every six
PC internal dust tip medium size, the system. Open the Electronics Unit and the months
cleaning standard tip, Allen PC unit. Using the brush remove any dust
key 4 mm, brush from the boards (removing them from their
places if needed). At the end of the cleaning
procedure connect everything again and
check for proper functioning.
Cushion Check User Manual Verify integrity and number of cushions. every six
For the number of cushions required, refer to months
the relevant chapter in the User Manual
RX coils tuning Quality Form Check varicap and 180° pulse for every coils every six
check months
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8300096037 VER.6 Maintenance Instructions - Maintenance Protocol
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146
Check of the safety Installation Guide Inspect the labels on the Magnet and on the every six
labels Site door to make sure they are legible months
Copper conductive Cleaner Verify the integrity of the copper conductive every six
fingers fingers present in the inner sides of the months
Electronics Unit front panel and clean them
and the surface where they contact the
Electronics Unit frames
Auto Shimming Shimming Phantom Automatically check and correct the 2.0cos every six
Check parameter months
RTK Check Service Manuals Verify functionality and firmware installed every six
months
Manual Shimming Shimming Phantom Manually check and eventually correct the every year
Parameter Check and Shimming Kit Magnet shimming parameters
Power cord check Visual inspection of the integrity of the external every year
sheath
Power light check Visual inspection of the green light, and of the every year
switch placed in the left cover of the
Electronics box
Electrical Safety Installation Guide, Check the System insulations every year
Tests Start Up chapter
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8300096037 VER.6 Maintenance Instructions - Maintenance Protocol
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148
ESAOTE RF Cage Maintenance – Dismantle the U profile on the shutter closing set (DC code)
– Remove the finger stripes to be replaced and insert the new
(if present) stripes
– Re-install the U profile on the DL shutter
The parts of the RF Cage subject to periodical maintenance are:
– Fingers and contact surfaces Side finger
– Upper and lower sliding device of the two shutters To replace the side fingers:
– De-install the Door joints
NOTICE In case of replacement perform the RF Cage – De-install the finger supporting element
Shielding Check (refer to the Installation Guide) – Remove the finger stripes to be replaced and insert the new
stripes
Fingers and contact surfaces – Re-install the door joints
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150
A G
ACM and SRFA check 108 Gradient 123
ACM test 100 Gradient driving transmitting chain 123
artifacts 55 H
C Hard disk 92, 97
CD Combo 92 Heaters 133
Coils check 109 I
Complete Software installation 63 Image quality 51
Computer and devices test 90 Image quality check 55
Computer test 90 Images Back up 62
D Images Restore 62
Data Cable Check 100 Images visualization and storing 89
Door's sliding device 148 Interference problem analysis 51
DSPM test 99 L
E line voltage 140
error list 13 M
F Magnet 131
Fingers and contact surfaces 148 Maintenance 143
Fingers of the shutter closing set 148 Monitored quantities 47
151
8300096037 VER.6 Index
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152
1 Introduction
2 Service Policy
3 System
4 Software
5 Host
6 Control
7 RF Subsystem
8 Patient Handling
9 Gradient
10 Magnet
11 Power Distribution
12 Maintenance Instructions
13 Index
14 Tbd