Cleaning and Maintaining the System 9-3
No. Malfunction Potential Causes Corrective Measures
1
After the power
supply is turned on,
the power indicator
does not light on.
Abnormal power system or
incorrect connection of the
power cord.
Verify that the plug has not
become loosened or dislodged
from the back of the system.
2
When the power
indicator of the
monitor is on and
image is blank.
The interval between turnoff
and restart is too short – wait
minimum 20 seconds.
Turn off the system and wait
minimum 1 minute, then restart
the system.
The monitor brightness or
contrast may be improperly set.
Adjust the monitor brightness
and contrast back to factory
defaults.
3
The monitor displays
the characters but no
images.
The transmission power, overall
gain or TGC controls are
improperly set.
Adjust the transmission power,
gain or TGC control.
Verify that a transducer is
connected and / or fully
connected.
Ensure proper transducer
connection.
The image is frozen. Unfreeze the image.
4
The image quality
has degraded
The exam type is not correct.
Select an appropriate exam
type.
The settings of the image post
processing are not correct.
Adjust the settings of the image
via post processing or reset the
post processing to the default
values.
The image presets are
appropriate
Reset the factory default
setups.
5
The display of image
is abnormal.
System error
messages are
displayed all the
time.
Operations cannot
be executed.
/ Restart the System
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