2.9 Image quality issue
Set-up
The issue occurs while the system is set up as follows:
1. The GUI is visible and navigation by touchscreen is possible.
2. A transducer is connected.
Symptom
The issue causes the following symptoms:
1. The ultrasound image contains lines or patches in the vertical axis that are noticeably brighter or darker than
the surrounding image.
2. The brightness control buttons do not adjust image brightness.
3. The contrast control buttons do not adjust image contrast.
4. The time gain control buttons do not adjust brightness at different image depths.
Diagnoses
The following information collection can be helpful to help diagnose and remedy the issue:
1. Note if the image quality issue is also associated with another issue or warning message.
2. Note if the image quality issue can be reproduced in a consistent and repeatable manner.
3. Note if the issue occurs only under certain GUI settings, physical set-up, environment conditions etc.
4. Did the system or transducer suffer a drop, impact or other event which may have triggered the issue?
5. Note if transducer plug housing is cracked or displays any other sign of damage.
6. Note if transducer cord is cracked, pinched, badly twisted or displays any other sign of damage.
7. Note if the applied surface of transducer head is badly scratched, bubbled or otherwise damaged.
8. Connect a different known-good transducer. Note if the same symptoms are observed.
Field fix
The following actions may help to avoid the return of the system to the ESC for inspection:
1. Use ultrasound transmission gel to ensure a consistent transducer contact with the body.
2. Disconnect and reconnect the transducer.
Version: 1.1 © eZono AG, 2009-2015 - Confidential Page 14 of 25
To Next Page
Loading...