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Maintenance Case of Trackball in Color Doppler Ultrasound
Repair Guides · Repair guide · Reviewed May 18, 2026
Repair guideText-focused technical page

This page is focused on the technical note, model context and service information rather than product photography.

Page summary
Key service context for quote intake and technical review
  • Published in the Rongtao Medical Blog under Repair Guide.
  • Technical focus: Control Panel.
  • Use this page to compare product, repair and troubleshooting context before opening a quote request.
Part typeControl Panel
Content typeRepair Guide
Technical notes
Technical body content

Fault phenomenon

When operating the rolling trajectory ball, the measuring mark moves out of order, the star mark moves fast or slowly, sometimes a certain direction is uncontrolled and the fault is irregular.

Fault analysis

From the analysis of the phenomena that sometimes there is no star Mark and sometimes the star mark can be controlled, it is shown that the measuring mark control circuit works normally, and the causes of the failure of color Doppler ultrasound may be: the virtual welding of the circuit elements or the poor mechanical contact in the transmission system, the inspection should focus on the trajectory ball operating box. Further detection found that the trajectory sphere box and photoelectric unit were covered with dust, resulting in damage to use.

Repairing

The dust on the photoelectric unit and the component board in the box is repeatedly cleaned up with a brush and anhydrous alcohol. After installation and restoration, the trouble is eliminated and the color Doppler ultrasound can be used normally. Rongtao Medical's mission is to help people realize the efficient circulation utilization of medical resource!

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1.Professional&Passionate pre-sale service team 2.10 years experience repair technician team 3.Reliable&Responsible quality control team 4.Experienced&Specialize after-sale technical support team Our vision: TO be the top preferred third-party service company worldwide!

Service context

Rongtao uses this technical record for Control Panel as supporting context for quote intake, photo comparison, board identification and repair-route selection. For live availability, send the machine model, board label, fault symptom and clear photos of both sides of the part.

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