GE Senographe DS Manual page 741

GE Healthcare
Revision 1
adjustment).
Measured lumniance
(on white level square)
6. Perform a Monitor backlight adjustment, as follows:
a. Stay in the RGB menu, and keep pressing the MENU button until Backlight is selected.
b. With the luminance meter positioned on the central white level square of the SMPTE pattern (see
the image in section
luminance of the white level meets the target luminance of 400 cd/m² ±10 cd/m².
7. Perform a grey-level visibility check on the SMPTE pattern, by checking that:
• All the grey levels are visible
• The "5%" square remains visible compared to the 0% square.
• The "95%" square is visible compared to the 100% square.
If you do not have these results, repeat the calibration steps
8. Keep pressing the SET button until Accept changes is selected, then press the UP button to exit and
save the settings.
JC-ELE-A-043.fm
Service Information and Procedures Class A 2385072-16-8EN
Up/Down buttons to find limit where
measured liminance is at the limit be-
tween not changing and increasing.
Up
Increasing contrast
(Inreasing value displayed on Monitor OSD)
7-4), use the UP/DOWN buttons to adjust the Backlight value so that the
Page no. 741
Job Card ELE A043 - AWS Monitor Calibration
2 to 6.
Senographe DS
Chapter 7