System Maintenance
13-3
13.3 Troubleshooting
The following troubleshooting can be performed by users.
If any failure listed in the table below occurs, follow the measure in the table to troubleshoot it.
If you cannot restore the system from the failure after performing the measure, contact our
company’s Customer Service Department or your local distributor.
Failure Measure
The system does not work after it
is powered on.
After turning off the system, perform the following
checks:
1. Check if the power cable is connected to the
outlet.
2. Check if the power supply is normal.
Turn on the system again.
The system works but the screen
does not display.
1. Turn the brightness knob and contrast knob to
adjust the brightness and contrast of screen.
2. If the screen still displays nothing, turn off the
system and then turn it on again (after turning
off the system, wait at least 10 seconds before
turning it on again).
The screen displays characters but
no images.
1. Check if the transducer is connected to the
system properly.
2. If the image is frozen, unfreeze it.
3. Turn the gain knob or press TGC keys.
4. If the screen still displays no images, turn off
the system and then turn it on again (after
turning off the system, wait at least 10 seconds
before turning it on again).
The image is abnormal. 1. Select a proper exam mode.
2. Adjust the image.
The screen displays abnormally. Turn off the system and then turn it on again (after
turning off the system, wait at least 10 seconds
before turning it on again).
An error message displays on the
screen and always displays.
Turn off the system and then turn it on again (after
turning off the system, wait at least 10 seconds
before turning it on again).
An operation cannot be performed. Turn off the system and then turn it on again (after
turning off the system, wait at least 10 seconds
before turning it on again).
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