Mindray DC-60 Service Fundamentals
1. General Description
The Mindray DC-60 is a high-performance, cart-based diagnostic ultrasound system designed for a wide range of clinical applications. It features advanced imaging technologies, a modular design for serviceability, and supports numerous optional peripherals and software packages. Understanding its system architecture and safety protocols is paramount for any service activity.
2. Course Content
Module 1: System Overview & Core Technology (Theory)
Objective: Understand the fundamental building blocks and imaging technology of the DC-60.
System Architecture: The DC-60 is divided into three main units:
Front-end Unit: The "scanning" part. Handles ultrasound transmission and reception.
Key Components: Probe Board, TR Board, Engine Board.
Technology: Beamforming (controlled by the Engine Board's DSP/FPGA), signal transmission/reception (TR Board), and probe management.
Back-end Unit: The "computing" part. Handles image processing, display, and user interface.
Key Components: PC Module (CPU, RAM), PC Carrier Board, Storage (HDD/SSD).
Technology: Standard PC architecture running Windows, specialized for ultrasound image post-processing.
Power Supply Unit: Provides and manages power for the entire system.
Key Components: AC-DC Board (converts wall power), DC-DC Board (powers internal components), PHV Module (Programmable High Voltage for transmitters), Battery Assembly.
Image Formation Path:
Probe sends/receives sound waves.
Probe Board routes signals and identifies the probe.
TR Board handles detailed transmission and initial reception (beam data).
Engine Board performs front-end processing (e.g., filtering, compounding) and controls the entire front-end.
Processed data is sent via PCIe to the PC Module.
The PC Module runs the "Doppler" software for final image rendering, measurement calculations, and display output.
Module 2: Safety Precautions (The Most Critical Module)
Objective: Ensure personal, patient, and equipment safety during all operations.
Electrical Safety (WARNING):
ALWAYS disconnect AC power before cleaning, disassembly, or servicing.
Use only Mindray-provided power cords. Do not use multi-socket adapters.
The system is NOT waterproof. Avoid liquid ingress.
Never operate the system in an atmosphere with flammable or explosive gases.
Mechanical Safety (WARNING/CAUTION):
Always lock the casters before servicing to prevent the system from moving.
Two persons are required to move the system on sloped surfaces (>10°).
Be aware of pinch points, especially when adjusting the monitor and control panel arms.
Handle probes with extreme care. Do not drop them. Inspect connector pins for damage before use.
Personnel Safety (NOTE):
Only Mindray-authorized personnel should perform disassembly and repairs.
Use Anti-Static (ESD) gloves when handling electronic boards.
Be mindful of electromagnetic interference (EMI). Keep cell phones and other transmitters away from the system during operation.
Module 3: Installation & Configuration
Objective: Correctly unpack, set up, and configure the system for first use.
Pre-Installation Site Check:
Stable AC power with proper grounding.
Ample space around the system (min. 20cm) for ventilation.
Confirm network requirements if DICOM/network printing is needed.
Unpacking & Assembly:
Follow the manual's unpacking process carefully to avoid damage.
Key steps: Mount probe holders, connect transducers, connect power cord (ensure retaining clamp is locked).
Power-On & Software Setup:
Initial power-on will take several minutes for system initialization.
Enter Service Mode (Ctrl + /) for maintenance tasks.
Critical Presets in [F10] Setup:
System Preset: Set date, time, language, and user-defined keys.
Print Preset: Add and configure local or network printers.
DICOM Preset: Configure AE Title, IP addresses, and ports for PACS connection.
Network Preset: Configure wired or wireless (Wi-Fi) network settings.
Module 4: Preventive Maintenance & Cleaning
Objective: Perform routine maintenance to ensure system longevity and performance.
Cleaning (Power OFF and unplugged first!):
Exterior: Use a soft, dry cloth. For stains, use a mild soap solution. Do not use abrasive cleaners or solvents.
Monitor & Touchscreen: Clean gently with a soft, dry cloth.
Probes: Wipe the probe head and cable with a soft cloth dampened with a mild soap solution. Avoid getting liquid on the connector.
Trackball: Can be disassembled for cleaning the rollers and ball.
Air Intake Filters: Regularly remove and clean the dust-proof meshes on the main unit and base to prevent overheating.
Regular Checks:
Visually inspect probes for cracks, cable wear, or bent pins.
Check power cord for frays or damage.
Verify battery charges to 100% and holds a charge.
Module 5: Troubleshooting Fundamentals
Objective: Apply a structured approach to diagnose common problems.
Use the Indicators: The control panel and IO board LEDs provide the first clues (e.g., AC power, battery status, system voltages).
Use the Self-Test Tool: The built-in Maintenance Self-Test (in Service Mode) is your best friend. It tests individual hardware components (boards, fans, voltages) and generates a detailed report.
Common Issues & Approach:
No Power: Check AC input -> Check AC-DC board -> Check DC-DC board -> Check PC Carrier Board.
No Image/Image Artifacts: Check probe connection -> Run Self-Test on Engine/TR boards -> Reseat cables.
System Doesn't Boot: Listen for HDD activity -> Check Self-Test for HDD errors -> Use software restoration tools.
Peripheral Not Working (Printer, etc.): Check connections -> Verify driver installation in Windows -> Check preset settings in Doppler.
Logs are Crucial: Always export the system logs (Maintenance -> Export Log) before and after servicing for diagnosis and documentation.
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