GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Chapter 12 - Troubleshooting Page 315
Reconstruction is not
performed. The following
message displays:
"Notification: The compute
API failed to initialize.
Reconstruction cannot be
performed. See error log for
more details."
cjmMain server in not
running.
1. Open xterm window and login as root.
2. Type: /etc/rc3.d/S60pet stop.
3. Type: /etc/rc3.d/S60pet start.
On the PET, when pressing
Accept Setup the following
message displays:
“Insufficient file space. Scan
terminated.”
SHARC disk is full. Remove raw data from the SHARC via the Delete
screen.
VQC does not find phantom
points.
Phantom not positioned in
the FOV of CT and/or PET
gantries.
Image quality problem.
View the reconstructed images using the Display.
If all 5 points are not visible, the problem is with
the phantom position. Fit the phantom correctly
according to the operator manual instruction.
If all 5 points are visible, the problem is a result of
poor image quality. Perform Blank Scan to check
image quality.
During the PET installation,
after CU connection is
established and input is
received, the winterm stops
receiving input.
CU connection problem. Close the current winterm. Open a new one and
type: cu petows [Enter] and continue with the
installation.
After typing cu petows in
the winterm, the screen
does not respond to
input.
Incorrect NULL modem
cable connection.
Make sure that the NULL modem cable is
properly connected. (See the Discovery LS
Installation Manual 2317946-100, Section
4.11.1.)
After pressing [PET
Series] button for the first
time after shutdown or
restart of the CT, the PET
application does not
open. Pinging the PET
Host also fails.
OR
After pressing [PET]
Desktop button the first
time after shutdown or
restart of the CT, the PET
application does not
open. Pinging the PET
Host also fails.
Incorrect NULL modem
cable connection.
Click the [Console] icon on the upper left of
the Scan Monitor.
Look for PET error messages. If no PET
error messages are found, and a message
with the following content exists:
“Booting up the PET system, one moment
please...
Connected
Return from transmit after eof non - tty input
Disconnect”
Make sure that the NULL modem cable is
properly connected. (See the Discovery LS
Installation Manual 2317946-100, Section
4.11.1.)
If this problem persists, power the PET Host
Off and On again.
Problem Likely Cause Suggested Action