ORTHORALIX 9200
Service Manual
F-69
Gendex Dental Systems 4519-190-71193-7
16.
Insert the panoramic cassette (with the own intensifying
screens installed) in the panoramic cassette carriage.
17.
Press the DUMMY RUN key on the keyboard; the following
message appears on the display:
60kV 9mA 0.80s
18.
Press the RESET key on the keyboard.
19.
Make an exposure, then the following will appear:
60kV 15mA 0.80s
20.
Make an exposure, then the following will appear:
aXX bXX SL=XX.X
Write these parameters on paper.
21.
Switch off the unit.
22.
If one of the two parameters a and b is greater than 255,
repeat the steps from (16) to (22) reducing the value of the
mA of the two exposures till the parameters a and b are lower
than 255.
23.
Using the following formula, calculate the correction param-
eter C:
C = 64 - (750 / SL)
Where:
SL is the parameter obtained in step (20).
Do not consider the decimal part of the parameter: i.e. 24.3
it must be considered 24. If the parameter is higher than 50,
it must be considered 50; if the parameter is lower than -200
(i.e. -201, -202 etc.), it must be considered -200.
24.
Switch on the unit entering the Service Programs and select
AEC pan tune
.
The following message will appear on the display:
AEC PAN TUNE
NEW=XX OLD=ZZ
where:
t 99JTUIFBDUVBMDPSSFDUJPOQBSBNFUFS
t ;;JTUIFPMEDPSSFDUJPOQBSBNFUFS
The correction parameter that must be stored is the value C
calculated in the step (23).
To modify the correction parameter, use the Program +/
Program - keys on the keyboard (possible range from -200
to +50) and press DUMMY RUN key on the keyboard to store
the new parameter and to exit from the program.
25.
The panoramic AEC calibration is done.
26.
Remove the brass filter.
Case (B): CEPH AEC calibration
1.
Mount the brass filter (code 4519 122 25571) on the ceph
cassette carriage so that it covers the AEC sensor of the PA5
AEC control board; see the figure below.
AEC Sensor
Brass filter
2.
Check that no cassette is inserted in the ceph cassette car-
riage.
3.
Switch on the unit entering the Service Programs, by keeping
pressed the PATIENT SIZE and the DUMMY RUN keys of the
operator panel while switching on the unit. Keep pressed
the two keys till the message WAIT disappears from the
display.
4.
The following message will appear on the display:
SERVICE PROGRAMS
Pls press Y- Y+
where:
t :BOE:BSFLFZT4BOE4POUIFLFZCPBSE VTFE
to move the rotating arm along the Y axis, to center the
patient with respect to the lateral vertical light).
By pressing the above mentioned keys, select the service
program
AEC Slope
.
5.
The following message will appear on the display:
AEC SLOPE
DUMMY RUN TO GO
(03.0)E
Printed on: 20 Apr 2012, 04:59:40 pm; Printed by: UWE.ZELLER
