GE Venue Go Service Manual page 200

P R E L I M I N A R Y
D 5813707-100, R
IRECTION
Verify if the noise change or disappear when the cables are removed.
Often, this type of noise is due to grounding problems in the mains power system or that the scanner is
sharing a power line with other equipment.
7-4-3-3 Intermittent Noise
• Is there any equipment that is turned on and off near the scanner?
• Is the noise present all around the clock or only at special occasions?
7-4-3-4 Self-generated Noise Generated inside the Ultrasound system)
Example: Color Noise in the near field.
• Self generated noise will not change if you touch the scanner or the probe.
• Self generated noise may be due to either:
•
•
•
7-4-3-5 Heat Problems
Heat problems are usually starting when the Venue Go™ has been ON for some time.
If the Venue Go™ has been used for scanning for some time before the noise appears, it may be due to
either heat problems or some software related issues. By doing a restart you may learn some more about
the cause.
Select Ctrl+Alt+R to restart the back end processor without power-cycling the unit.
• If the noise is present after the restart, the cause is most likely due to heat problems.
• If the noise is gone after the restart, it may be due to either the setup/adjustments of the or a
software failure.
Possible causes for heat problems:
• Fan filters need to be cleaned or replaced.
• Room temperatures outside the allowed temperature limits.
• Fans are worn-out.
• Hardware problems.
2
EVISION
heat problems
hardware problems
software problems
Chapter 7 - Diagnostics/Troubleshooting
V ™ S M
ENUE ERVICE ANUAL
7-7