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Phenomenon

CAUSES

Remedy

No image display after turn on power supply

Power supply

Indicator not lip up

• Power wire may disconnected from socket

• Power adapter damage

• Re-connect power wire

• Replace power adapter

Power supply

Indicator lip up

• Monitor brightness and contrast may improperly adjusted

• Adjsut monitor brightness and contrast

Probe cannot generate image on patient body or the image is unclear

• Instrument is in Freeze status

• Image control parameters, scan parameters, image processing parameters, monitoring brightness or contrast are improperly adjusted

• Unfreeze

• Properly adjust image control parameters, scan parameters, image processing parameters, monitoring brightness or contrast

Probe type displayed on screen is different from actual working type

• Poor contact of probe interface

• Instrument is in Freeze status

• In Freeze or shutdown status, re-connect probe interface

• Unfreeze

Black vertical bars appear on image

• There is pollutants on probe

• Clean probe surface

There is interference noise spots or rippled interference lines on image

•Possibly close to other equipment and magnetic field

•Adjust B ultrasonic working environment, making it far away other equipment and magnetic field

Occasionally trackball or keyboard does not work after machine is started

• External power grid voltage is too low or has larger fluctuation.

• USB equipment (U disk, USB mouse etc) is connected when starting

•Disconnect USB equipment

• Restart and shutdown machine

Occassionally trackball movement is not flexible

• Trackball is stuck with dirt

• Clean as per method stated in Section 10.2