Mindray DC-6 User manual

DC-6/DC-6T/DC-6Vet
Diagnostic Ultrasound System
Service Manual

i
CONTENTS
1 General Description..............................................................................1-1
1.1 System Characteristics...........................................................................................1-1
1.2 Applicable Scope....................................................................................................1-1
2 System Overview ..................................................................................2-1
2.1 System Appearance ...............................................................................................2-1
2.1.1 Complete System with CRT Monitor........................................................................2-1
2.1.2 Complete System with LCD Monitor........................................................................2-3
2.2 LCD Monitor ...........................................................................................................2-4
2.2.1 Brightness and contrast buttons...............................................................................2-5
2.2.2 Up/down adjusting lever...........................................................................................2-6
2.2.3 Lever of upper support arm......................................................................................2-7
2.3 I/O Panel.................................................................................................................2-8
2.4 Power Panel...........................................................................................................2-9
2.5 ECG Panel............................................................................................................2-10
2.6 Control Panel........................................................................................................ 2-11
2.6.1 Main panel.............................................................................................................. 2-11
2.6.2 Minor panel.............................................................................................................2-14
2.6.3 Keyboard................................................................................................................2-15
2.7 Symbols................................................................................................................2-18
3 Principle Description............................................................................3-1
3.1 Electric Principle of the System..............................................................................3-1
3.2 Principle of Boards.................................................................................................3-2
3.2.1 Transducer Board.....................................................................................................3-2
3.2.2 Transmission board..................................................................................................3-3
3.2.3 Amplifier board ......................................................................................................... 3-3
3.2.4 Beamformer board ...................................................................................................3-4
3.2.5 DSP board................................................................................................................3-5
3.2.6 System motherboard................................................................................................3-7
3.2.7 CW board.................................................................................................................3-8
3.2.8 Built-in PC module ...................................................................................................3-9
3.2.9 IO module...............................................................................................................3-12
3.2.10 ECG module.........................................................................................................3-13

ii
3.2.11 Control panels and keyboard ...............................................................................3-14
3.2.12 Detection board of Power Output.........................................................................3-15
3.2.13 CRT monitor.........................................................................................................3-16
3.2.14 LCD monitor.........................................................................................................3-17
3.3 Power Supply Principle ........................................................................................3-19
3.3.1 Power supply system .............................................................................................3-19
3.3.2 Principle of power boards.......................................................................................3-22
3.4 System Software ..................................................................................................3-26
3.4.1 Structure.................................................................................................................3-26
3.4.2 Principle..................................................................................................................3-27
4 System Structure and Assembly/Disassembly ..................................4-1
4.1 Exploded View of Complete System......................................................................4-1
4.2 Exploded View of LCD Monitor and Support Arm ..................................................4-3
4.3 Disassembly and Replacement..............................................................................4-4
4.3.1 Disassembly of the monitor......................................................................................4-4
4.3.2 Replacement of the bottom light..............................................................................4-8
4.3.3 Replacement of spring damping parts .....................................................................4-9
4.3.4 Disassembly of the main panel..............................................................................4-14
4.3.5 Disassembly of the minor panel.............................................................................4-16
4.3.6 Replacement of the trackball..................................................................................4-18
4.3.7 Replacement of the main panel PCBA ..................................................................4-19
4.3.8 Replacement of the keyboard PCBA.....................................................................4-22
4.3.9 Replacement of the keyboard................................................................................4-23
4.3.10 Replacement of the light control PCBA................................................................4-25
4.3.11 Replacement of the keyboard slide tracks ...........................................................4-26
4.3.12 Replacement of the snap-close (lock head and lock seat)..................................4-27
4.3.13 Replacement of the travel switch (with the cable) ...............................................4-29
4.3.14 Disassembly of the system boards ......................................................................4-30
4.3.15 Remove built-in PC module .................................................................................4-37
4.3.16 Remove HDD.......................................................................................................4-40
4.3.17 Remove the DVD-R/W assembly.........................................................................4-41
4.3.18 Remove the ECG assembly.................................................................................4-43
4.3.19 Remove the transducer board..............................................................................4-47
4.3.20 Replace the inlet dust net.....................................................................................4-49
4.3.21 Remove the transformer ......................................................................................4-51

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4.3.22 Remove the fan assembly....................................................................................4-52
4.3.23 Replace casters ...................................................................................................4-55
4.4 Installation of Peripherals.....................................................................................4-57
4.4.1 Installation of black/white video printer ..................................................................4-57
4.4.2 Installation of color video printer ............................................................................4-59
4.4.3 Installation of VCR..................................................................................................4-63
5 Maintenance Requirements .................................................................5-1
5.1 Tools Required .......................................................................................................5-1
5.1.1 Tools/measurement devices and consumables.......................................................5-1
5.1.2 Standard configuration of tools and consumables...................................................5-2
5.2 Maintenance Personnel..........................................................................................5-3
6 Checks...................................................................................................6-1
6.1 Equipment condition Inspection .............................................................................6-1
6.1.1 Inspection Schedule.................................................................................................6-1
6.1.2 Checks before inspection.........................................................................................6-1
6.2 Function checks .....................................................................................................6-2
6.2.1 Flowchart for function checks...................................................................................6-2
6.2.2 Content of the function checks.................................................................................6-2
6.3 Safety Checks ........................................................................................................6-4
6.3.1 Electric safety...........................................................................................................6-4
6.3.2 Checks for mechanical safety..................................................................................6-5
6.4 Image Checks ........................................................................................................6-8
6.4.1 B/W image phantom data checks and image records .............................................6-8
6.4.2 Check phantom data................................................................................................6-8
6.4.3 Final operation checks and image archive...............................................................6-9
6.4.4 Checking color flow images ..................................................................................... 6-9
7 System Maintenance ............................................................................7-1
7.1 Cleaning .................................................................................................................7-1
7.1.1 Flowchart for cleaning..............................................................................................7-1
7.1.2 Content of the cleaning............................................................................................7-1
7.2 Software Maintenance............................................................................................7-4
7.2.1 Back up the preset data...........................................................................................7-4
7.2.2 Restore the preset data............................................................................................7-5
7.2.3 Upgrade the software...............................................................................................7-7
7.2.4 System recovery ....................................................................................................7-10

iv
7.2.5 Hard disk recovery.................................................................................................7-12
7.2.6 Install and uninstall the software of optional devices.............................................7-13
7.2.7 Monitor test.............................................................................................................7-15
7.2.8 Self-test..................................................................................................................7-17
8 Troubleshooting....................................................................................8-1
8.1 Troubleshooting for Power .....................................................................................8-1
8.2 Troubleshooting for Monitor ...................................................................................8-1
8.3 Troubleshooting for the Power-up Process............................................................8-2
8.4 Troubleshooting for the Operation Process............................................................8-3
8.5 Troubleshooting for Software ................................................................................. 8-3
8.6 Troubleshooting for Others.....................................................................................8-4
Appendix A Spare Part List.......................................................................A-1
Appendix B Interface Definition and Function List.................................B-1
Appendix C Initial Data of the Hard Disk..................................................C-1
Appendix D Electrical Safety Inspection .................................................D-1

I-I
© 2006-2012 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. All rights Reserved.
For this Operator’s Manual, the issue date is 2012-09.
Intellectual Property Statement
SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. (hereinafter called
Mindray) owns the intellectual property rights to this Mindray product and this manual.
This manual may refer to information protected by copyright or patents and does not
convey any license under the patent rights or copyright of Mindray, or of others.
Mindray intends to maintain the contents of this manual as confidential information.
Disclosure of the information in this manual in any manner whatsoever without the
written permission of Mindray is strictly forbidden.
Release, amendment, reproduction, distribution, rental, adaptation, translation or any
other derivative work of this manual in any manner whatsoever without the written
permission of Mindray is strictly forbidden.
, , , , , BeneView,
WATO, BeneHeart, are the trademarks, registered or otherwise, of Mindray in
China and other countries. All other trademarks that appear in this manual are used
only for informational or editorial purposes. They are the property of their respective
owners.
Responsibility on the Manufacturer Party
Contents of this manual are subject to change without prior notice.
All information contained in this manual is believed to be correct. Mindray shall not be
liable for errors contained herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this manual.
Mindray is responsible for the effects on safety, reliability and performance of this
product, only if:
all installation operations, expansions, changes, modifications and repairs of this
product are conducted by Mindray authorized personnel;
the electrical installation of the relevant room complies with the applicable
national and local requirements; and
the product is used in accordance with the instructions for use.
Upon request, Mindray may provide, with compensation, necessary circuit diagrams,
calibration illustration list and other information to help qualified technician to maintain
and repair some parts, which Mindray may define as user serviceable.
Note

II
This equipment is not intended for family usage.
This equipment must be operated by skilled/trained medical professionals.
Warning
It is important for the hospital or organization that employs this equipment to carry out a
reasonable service/maintenance plan. Neglect of this may result in machine breakdown
or injury of human health.
Warranty
THIS WARRANTY IS EXCLUSIVEAND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE.
Exemptions
Mindray's obligation or liability under this warranty does not include any transportation or
other charges or liability for direct, indirect or consequential damages or delay resulting
from the improper use or application of the product or the use of parts or accessories
not approved by Mindray or repairs by people other than Mindray authorized personnel.
This warranty shall not extend to:
Any Mindray product which has been subjected to misuse, negligence or accident;
Any Mindray product from which Mindray's original serial number tag or product
identification markings have been altered or removed;
Any product of any other manufacturer.
Safety, Reliability and Performance
Mindray is not responsible for the effects on safety, reliability and performance of the product
if:
Assembly operations, extensions, re-adjusts, modifications or repairs are carried out by
persons other than those authorized by Mindray.
 Personnel unauthorized by Mindray repairs or modifies the instrument.

III
Return Policy
Return Procedure
In the event that it becomes necessary to return this product or part of this product to
Mindray, the following procedure should be followed:
1. Obtain return authorization: Contact the Mindray Service Department and obtain a
Customer Service Authorization (Mindray) number. The Mindray number must appear
on the outside of the shipping container. Returned shipments will not be accepted if the
Mindray number is not clearly visible. Please provide the model number, serial number,
and a brief description of the reason for return.
2. Freight policy: The customer is responsible for freight charges when this product is
shipped to Mindray for service (this includes customs charges).
3. Return address: Please send the part(s) or equipment to the address offered by
Customer Service department
Company Contact
Manufacturer:
Shenzhen Mindray
Bio
-
Medical Electronics Co., Ltd.
Address:
Mindray Building, Keji 12th Road South, Hi-tech Industrial Park,
Nanshan, ShenZhen 518057, P.R.China,
Tel:
[phone] 26582888
Fax:
[phone] 26582500
EC-Representative: Shanghai International Holding Corp. GmbH(Europe)
Address: Eiffestraβe 80, Hamburg 20537, Germany
Tel: [phone]
Fax: [phone]

IV
Safety Precautions
1. Meaning of Signal Words
In this operator’s manual, the signal words DANGER, WARNING and NOTE are
used regarding safety and other important instructions. The signal words and their meanings
are defined as follows. Please understand their meaning before reading this manual.
Signal word Meaning
DANGER
Indicates an imminently hazardous situation that, if not avoided,
will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
NOTE Indicates a potentially hazardous situation that, if not avoided, may
result in property damage.
2. Meaning of Safety Symbols
Symbols Description
Type-BF applied part
The ultrasound transducers connected to this system are Type-BF applied
parts.
"Attention" indicates the points that you should pay attention to. Be sure to
read the operator’s manual concerning these points before using the
system.

V
3. Safety Precautions
Please observe the following precautions to ensure patient and operator safety when using
this system.
DANGER: Do not use flammable gasses such as anesthetic gas, oxygen or
hydrogen, or flammable liquids such as ethanol, near this product,
because there is danger of explosion.
WARNING:
1. Do connect the plug of this equipment to the wall receptacle, and
the plug must meet the ratings indicated on the rating nameplate.
Using an adapter or multi-functional receptacle may affect the
system grounding performance and thus causing the leakage
current to exceed safety requirements.
In addition, do connect the video printer to the auxiliary power
socket of this system. And use the printing cable provided by this
system to connect the printer. Otherwise, it may cause electric
shock.
2．
．．
．Be sure to connect the potential-equalization lead wire before
inserting the equipment power plug into the receptacle. Also, be
sure to remove the equipment power plug from the receptacle
before disconnecting the wire to avoid electric shock.
3．
．．
．Connect the earth conductor only before turning ON the system.
Disconnect the grounding cable only after turning OFF the system.
Otherwise, electric shock may result.
4．
．．
．For the connection of power and grounding, follow the appropriate
procedures described in this operation manual. Otherwise, there is
risk of electric shock. Do not connect the grounding cable to a gas
pipe or water pipe, otherwise functional grounding may not be
effective or there may be risk of a gas explosion.
5．
．．
．Before cleaning the system, be sure to disconnect the power cable
from the outlet. If the system is defective, there is risk of electric
shock.

VI
6．
．．
．No waterproof device is applied to this equipment. Do not use this
equipment in any place with the possibility of water ingress. There
is risk of electric shock if any water is sprayed on or into the
equipment. If carelessly spray any water onto the equipment,
contact the Mindray sales office, customer service department or
representative.
7．
．．
．Use the transducer carefully. In case that the body contacts the
scratched transducer surface, immediately stop using the
transducer and contact the Mindray sales office, customer service
department or representative. There is risk of electric shock if using
the scratched transducer.
8．
．．
．Be careful not to let the patient contact the live parts of the
ultrasound equipment or other devices, such as signal I/O ports. If
the ultrasound equipment is defective, there is risk of electric
shock.
9. Do not use the transducers other than those specified by Mindray.
Otherwise, the equipment and the transducer may be damaged,
causing an accident such as a fire in the worst case.
10. Do not subject the transducers to knocks. Use of defective
transducers may cause an electric shock.
11. Do not open the shell or front panel. If you open the shell when the
system is powered on, there may be a short circuit or electric
shock.
12. Do not use this system with using equipment at the same time such
as an electrosurgical unit, high-frequency therapy equipment, or a
defibrillator, etc. otherwise it may result in electric shock to the
patient.
13. Use only the ECG leads provided with the ECG module, otherwise it
may result in electric shock.
14. If this system needs to be moved, please hold the handle. If other
parts of the system are held, it may cause damage due to the
abnormal force. Do not push the system from the left/right side;
otherwise it may be toppled over.

VII
15. Accessory equipment connected to the analogue and digital
interfaces must be complied with the relevant IEC standards (e.g.,
IEC 60950 Safety of information technology Equipment Standard
and IEC 60601-1 Medical Equipment standard). Furthermore all
configurations should comply with the standard IEC60601-1-1. Any
person, who connects additional equipment to the signal input or
output ports and configures a medical system, is responsible for
ensuring that the system complies with the requirements of
IEC60601-1-1. If you have any problem, consult the technical
services department of your local representative.
16. Prolonged and repeated use of keyboards can result in hand or
arm nerve disorders for some individuals. Observe the local safety
or health regulations concerning the keyboard use.
CAUTION: 1．
．．
．Precautions concerning clinical examination techniques:
(1) This system must be used only by qualified professionals.
(2) This operation manual does not describe clinical
examination techniques. Selection of the proper clinical
examination technique must be based on specialized
training and clinical experience.
2．
．．
．Malfunctions due to radiowaves:
(1) Use of radiowave-emitting devices in the proximity of this
medical electronic system may interfere with its operation.
Do not bring or use devices that generate radio waves, such
as cellular telephones, transceivers, and radio controlled
toys, in the room where the system is installed.
(2) If a person brings a device that generates radio waves near
the system, ask him/her to immediately turn OFF the device.
3．
．．
．Precautions concerning installation and movement of the system:
(1) Ensure to install the equipment horizontally and lock up the
casters securely. Otherwise, it may move to cause injury.
(2) Do not move the equipment from its sides; otherwise it may
be toppled over and may injure people.
(3) When you move the equipment on a slope, it shall be moved
slowly by two people; otherwise it may happen to slide and
severely injure people.
(4) Do not sit on the equipment, because it may move and make
people lose balance and fall.

VIII
(5) Dot not place any object on the monitor, because it may fall
and injure people.
(6) Fasten the peripheral devices before moving the equipment.
Otherwise, the peripheral devices may fall and injure people.
(7) When moving the equipment on steps, you shall prevent it
from being toppled.
4．
．．
．Do not vibrate the equipment excessively ( when moving the
equipment); otherwise the mechanical parts (such as casters) may
be damaged. If the equipment is often moved on a bumpy floor,
contact the Mindray sales office, customer service department or
representative.
5. Do not connect this system to outlets with the same circuit breakers
and fuses that control the current of devices such as life-support
systems. If this system malfunctions and generates an
overcurrent, or when there is an instantaneous current at power ON,
the circuit breakers and fuses of the building’s supply circuit may
be tripped.
6．
．．
．Always keep the machine dry. Avoid transporting this machine
quickly from the cold place to the warm place; otherwise
condensation or water drops may be formed, causing short circuit.
7．
．．
．If the circuit breaker is tripped, it indicates that the machine or the
peripheral devices have problems. In these cases, you cannot repair
by yourself but should contact the Mindray sales office, customer
service department or representative.
8．
．．
．There is no risk of high-temperature burns during routine
ultrasound examinations, even if, due to environment temperature
and exam modes, the surface temperature of the transducer exceeds
the body temperature of the patient. To prevent high-temperature
burns, do not apply the transducer to the same region on the patient
for a long time. Apply the transducer only for as long as required
time for diagnosis.
9．
．．
．This device and its accessories are not disinfected and sterilized
when they are out of the factory, so the user shall disinfect and
sterilize transducers or biopsy brackets as per the manuals prior to
use of transducers or biopsy brackets. After the sterilization or
disinfection of accessories, chemicals must be washed out or gases
must be discharged thoroughly from the accessories. Remaining
residual chemicals or gases will not only result in damage to the
accessories but also can be harmful to human bodies.

IX
10．
．．
．Before examining a new patient, press the key to delete
the patient information and data recorded in the image memory for
the previous patient. Otherwise, the new data may be confused
with the data of the previous patient.
11. Do not connect/disconnect the system and its accessories (such as
printers or DVD recorder) without turning OFF the power; otherwise
it may cause damage of the equipment or electric shock.
12. Do not turn OFF the power supply of the system during printing,
saving, or invoking; otherwise these processes may not be
completed normally or files may be lost.
13. During operation, if the system is improperly powered off, it may
result in data damage of the hard disk or system failure.

X
NOTE: 1. Do not use the machine in the vicinity of strong electromagnetic field (such
as the transformer), which may affect the performance of the machine.
2. Do not use the machine in the vicinity of high-frequency radiation source,
which may affect the performance of the machine or even lead to failure.
3. To avoid damaging the machine, do not use the machine in following
environment:
(1) Locations exposed to direct sunlight;
(2) Locations subject to sudden changes in temperature;
(3) Dusty locations;
(4) Locations subject to vibration;
(5) Locations near heat generators;
(6) Locations with high humidity.
4. Turn ON the system only after the power has been OFF for more than 20
seconds. If the system is turned ON immediately after being turned OFF,
the system may malfunction.
5. Turn OFF the auxiliary power switch or stop transmission through the
『Freeze』key before connecting or disconnecting a transducer. If a
transducer is connected or disconnected with an image displayed, the
system and/or the transducer may malfunction.

XI
6. After using the transducer, remove the ultrasound gel on it and place the
transducer on the transducer holder. Otherwise, water in the gel may enter
the acoustic lens, thus adversely affecting the performance and safety of the
transducer.
7. You can record the registration data (including the hospital data and patient
data). To ensure the security of the data, be sure to back up the data on
external storage media. Data stored in the equipment may be lost due to
improper operation or an accident.
8. Do not apply external force to the control panel (e.g. leaning against it).
Otherwise it may damage the system.
9. If the system is used in a small room, the room temperature may rise.
Therefore, proper ventilation shall be provided.
10. When disposing the system or any part of it, contact your Mindray
representative. Do not dispose of this system without consulting Mindray.
Mindray would bear no responsibility for damages resulting from disposal of
this system without consulting Mindray.
11. Degradation of electrical and mechanical safety characteristics (such as
generation of a leakage current or deformation/abrasion of mechanical
parts) and of image sensitivity and resolution may occur after a period of
time. To ensure normal operation of the system, it is recommended to sign a
maintenance and service agreement to prevent accidents.
12. Output power outlet in the system is used to supply power for the
recommended peripheral devices. Do not connect other devices to the
outlet, otherwise the rated output power may be exceeded and failure may
result. Maximum output power of the power outlet for peripheral devices is
350VA.
4. Warning Labels
Various warning labels are attached to this system in order to call the user's attention to
potential hazards.
The symbol on the warning labels indicates safety precautions. The warning labels
use the same signal words as those used in the operation manual.
Detailed information about the warning labels is given in the operation manual. Read
operation manual carefully before using the system.
The name, pattern and the meaning of each warning label are described as follows:

XII
No. Label Meaning
<1> (a) CAUTION: Do not sit on the system.
(b) Before using the system, be sure to carefully
read the relevant content of this operation
manual.
(c) DANGER: The system must not be used around
flammable gasses.
<2>
(a) CAUTION: Do not place the system on a sloped
surface. Otherwise the system may slide
unexpectedly, resulting in person injury or the
system malfunction. The system should be
moved over a sloped surface by two persons to
ensure safety.
(b) CAUTION: The system shells must not be
opened, because the high voltage inside may
cause electric shock.
<3> Beware of excessive stress exerted to the system.

1-1
1 General Description
1.1 System Characteristics
The DC-6/DC-6T/DC-6Vet Diagnostic Ultrasound System is a color Doppler system with
features of all-digital architecture and whole-body application, which is designed based on
clinical needs. The system supports a wide range of transducers, and its imaging modes
include B Mode, M mode, Pulsed Wave Doppler (PW), Continuous Wave Doppler (CW), Color,
and Power, Smart3D, iScape and Free Xros M. It supports single-frame files such as formats
of DICOM, BMP and JPEG, and Cine files such as CIN and AVI; the silicone keyboard and
flexible trackball are adopted for the system; the high-performance ICs are used to realize the
front-end transmission and reception and back-end software functions; the system is suitable
for a wide variety of hospitals and clinics.
1.2 Applicable Scope
The DC-6/DC-6T Diagnostic Ultrasound System is applicable for adults, pregnant women,
pediatric patients and neonates, and it is intended for use in abdominal, cardiac, small parts
(breast, testes, thyroid, etc.), peripheral vascular, fetal, transrectal, transvaginal, pediatric,
neonatal cephalic, musculoskeletal (general and superficial), and intraoperative (liver,
gallbladder, pancreas) exams.
The DC-6Vet Diagnostic Ultrasound System is intended for use in abdominal, cardiac,
obstetric, small parts, peripheral vascular, transrectal, musculoskeletal (general and
superficial), and intraoperative exams for animals, such as dog, cat, equine, bovine and ovine,
etc.

2-1
2 System Overview
2.1 System Appearance
2.1.1 Complete System with CRT Monitor