GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Page 312 Chapter 12 - Troubleshooting
PET study is not transferred
correctly/completely to
Xeleris.
Network problems.
DICOM server problems.
Verify that DICOM server is alive and that the
connection to the Xeleris is alive (ping) as follows:
• From the Utilities menu, open an xterm a
type:
ps -ef
¦ grep -i dic [Enter]
• Search in the output for a line containing
Dicomserver. If the connection is alive, this
displays.
• In the xterm, type:
ping <Xeleris IP address> [Enter].
The output should be "<Xeleris IP address>
is alive"
Send the data again. If the problem persists,
check the hardware and the network.
There is no CTAC to
reconstruct PET with (no A/
C possible).
CTAC server problem.
Network problems.
If CT data is not on the PET, resend the data.
Next, run CTAC manually through CTAC GUI on
the CT data.
CT data does not arrive at
the PET station, and CTAC
is not performed.
One of the network
destinations of CT is down.
Check the connection of the remote stations,
manually clean the CT networking queue, and if
network problem persists, exclude the
problematic destinations from the target
destinations list.
PET and CT images are
misaligned.
System is misaligned. Run VQC procedure.
Cannot set the landmark. CT exam not ended. End CT exam by clicking [End Exam].
Cannot start a new CT
acquisition because end
exam is disabled.
Operator quit acquisition
screen through the main
menu instead of through the
acquisition screen menu.
Reopen PET acquisition screen and exit using the
Quit option inside the screen. This will enable End
Exam button.
Cannot set CT parameters
for slice interval, recon pan,
KV, because they are
disabled.
A PET protocol is defined for
that CT scan.
Press PET protocol button and clear the protocol
selection.
Table will not go down to the
loading position.
Table not in CT position.
Cradle not retracted.
Move table to CT position.
Retract cradle.
Keyboard does not respond,
or gives wrong characters.
KVM switch fault. (See the
Discovery LS Service
Manual, Direction 2307224-
100.)
Reset KVM switch by disconnecting all incoming
connectors and reconnecting.
Mouse does not respond. KVM switch fault (see
Discovery LS Service
manual 2307224-100)
Reset KVM switch as above.
Problem Likely Cause Suggested Action
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