Doppler Noise; Intermittent Noise; Self-Generated Noise (Noise Generated Inside The Logiq E9); Heat-Related Noise Problems - GE LOGIQ E9 Service Manual
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Also See for LOGIQ E9:
- Service manual (808 pages) ,
- User manual (256 pages) ,
- Technical publication (127 pages)
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D
5180483-100, R
IRECTION
7-9-2-3
Doppler Noise
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Horizontal stripes:
This is typically an analog problem on either of these boards:
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Spikes
This is a typical digital problem and may be caused by an issue on:
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-
7-9-2-4
Intermittent Noise
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Is there any equipment that is turned on and off near the scanner?
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Is the noise present around the clock or only at certain times?
7-9-2-5
"Motor Boat" Noise
May be hardware failure on GTX card or on the TX (Main Power supply).
7-9-2-6
Self-Generated Noise (Noise Generated Inside the LOGIQ E9)
Example:
Color Noise in the near field.
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Self generated noise will not change if you touch the scanner or the probes.
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Self generated noise may be due to either:
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-
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7-9-2-7
Heat-Related Noise Problems
Heat problems are usually starting when LOGIQ E9 has been ON for some time.
If LOGIQ E9 has be en 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 as described here, 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 LOGIQ E9
or a software failure
Some possible causes for heat problems:
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Fan filters need to be cleaned or replaced.
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Use of the LOGIQ E9 at room temperatures outside the allowed temperature limits.
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Fans are worn out.
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Hardware problems.
7-9-2-8
Hardware Problems
A hardware issue will typically be an error/malfunction on a card.
PROPRIETARY TO GE
. 7
EV
Transmitter board (GTX)
Receiver board (GRX)
Digital Receiver board (DRX)
Front End Interface Board (GFI)
heat problems
hardware problems
software problems
Chapter 7 Diagnostics/Troubleshooting
LOGIQ E9 P
ROPRIETARY
S
M
ERVICE
ANUAL
7 - 197
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Table of Contents
Troubleshooting
