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Knowledge|Track ball
Brand Knowledge · Repair guide · Reviewed May 18, 2026 · BALL-55
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.
  • Part reference: BALL-55.
  • Use this page to compare product, repair and troubleshooting context before opening a quote request.
Part typeControl Panel
Part numberBALL-55
Content typeRepair Guide
Technical notes
Technical body content

Knowledge of Trackball

Trackball is one of the most commonly used components in the daily use of ultrasonic equipment. Whether it is in the measurement and analysis, or in the modification of system settings, or in the playback and export of images, the help of trackball is indispensable. Have you ever encountered a time when the trackball can not change the cursor position at will? In this case, it is possible that the trajectory ball is not malfunctioning, but the interior needs to be cleaned. The introduction of this article will help you revive the trackball, and immediately put into intense work. The first step is to turn the fixed ring around the trajectory ball counter-clockwise (some models need to rotate a few more cycles, others only need to rotate 90 degrees counter-clockwise). The second step is to remove the retaining ring. The third step is to take out the trajectory ball. The fourth step is to clean the dirt on the positioning rod. The trajectory balls of some products use light-sensitive trajectory balls. After removing the balls, the dust and paper scraps inside the transparent ball carrier can be cleaned with a brush. For clean light-sensitive trajectory balls, it should be noted that in order to use soft brush or dry soft cloth, we must not scratch the bottom of transparent ball holder, otherwise it will affect the effect of laser transmission, leading to the abnormal use of trajectory balls. 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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