DUS 60 Digital Ultrasonic Diagnostic Imaging System Service Manual
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condition is free from any electrical or magnetic interference, and perhaps power supply, probe
and plugs are not connected well; it’s necessary to check each one.
4. Trouble description: Image isn’t clear enough.
Analysis: Maybe the gain, or the brightness and contrast need to be adjusted.
5. Trouble description: Image isn’t clear in near, medium or far distance
Analysis: Maybe the gain, near, medium or far field need to be adjusted
6. Trouble description: Good image but the fan doesn’t work when the unit is on
Analysis: Maybe the inside of the fan is too dirty and it needs to be cleaned, or change a new one
if broken.
7. Trouble description: Good image but the trackball doesn’t work well
Analysis: Maybe the inside of the trackball is dirty, clean the trackball, and refer to the above.
8. Trouble description: Image is not clear in far field
Analysis: Maybe there is electronic interference or probe is broken or parameters are abnormal.
9. Trouble description: Trackball doesn’t work well
Analysis: Maybe the cord of trackball or the crystal of trackball is broken. In case the trackball
can only move in horizontal direction, please check the optical couplers.
10. Trouble description: Image in near field is not clear
Analysis: Maybe there is air bubble on the lens of probe.
11. Trouble description: Fuse burns out as the device is switched on
Analysis: Maybe some capacitances on power board burn out or the voltage is not complied with
this machine.
12. Trouble description: Probe does not work
Analysis: Maybe the socket connecting with the probe loosens.
13. Trouble description: No sector and the whole area is white.
Analysis: Maybe the monitor, signal cable or the mainboard may be broken down.
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