Chapter 7
Page no. 752
JC-ELE-A-043.fm
GE Healthcare
Senographe DS
Revision 1
Service Information and Procedures Class A 2385072-16-8EN
Job Card ELE A043 - AWS Monitor Calibration
The
Brightness/Contrast
menu appears.
7. Perform a Monitor brightness adjustment, as follows:
a. Stay in the
Brightness/Contrast
menu, and keep pressing the
Key1
button until
Brightness
is
selected.
b. With the luminance meter positioned on the central black level square of the SMPTE pattern (see
the image in
), use the
Key3
button to decrease the
Brightness
value until the lumi-
nance measured stops changing. Then, use the
Key2
/
Key3
buttons to verify that the luminance
measured is at the limit between not changing and decreasing (see the image below which illus-
trates this adjustment).
8. Perform a Monitor contrast adjustment, as follows:
a. Stay in the
Brightness/Contrast
menu, and keep pressing the
Key1
button until
Contrast
is
selected.
b. With the luminance meter positioned on the central white level square of the SMPTE pattern (see
the image in
), use the
Key2
buttons to increase the
Contrast
value until the luminance
measured stops changing. Then use the
Key2/Key3
buttons to verify that the luminance mea-
sured is at the limit between not changing and increasing (see the image below which illustrates
Measured lumniance
(on black level square)
Decreasing brightness
(Brightness value displayed on Monitor OSD)
Key 3
Key2/Key3
buttons to find limit where
measured liminance is at the limit be-
tween not changing and decreasing.