GRASS VALLEY LDX Elite, User Manual

Page: 107 / 128

LDX Series Software Upgradable Camera Platform User’s Guide (v3.1) 107
Chapter 7 - Maintenance
7.2 Black calibration
Black Calibration improves image quality by re-mapping the level of black for each pixel so
sensitivity stays consistent over the entire image area.
In general, the Black Calibration procedure must be performed after a software package update
when it is indicated by message (“Black Calibration needed”) in the viewfinder.
– In some cases, it may take about a minute before this message appears.
1. Switch on the camera.
☞
Note
☞
Note
The user level must be set to Service to access the Service menu.
2. In the camera menu, go to the
SERVICE > CALIBRATIONS > BLACK CALIBR
menu and
select the calibration temperature using the
CALIBR TEMP
item. There are two options:
37 C (default) or Act (actual) temperature.
3. Go to the
BLACK CAL
item and select it. The camera starts to warm up or cool down,
depending on the ambient temperature and the selected calibration temperature. The lens
is capped automatically and lens iris is closed during the calibration process.
– Actual (current) temperature can be monitored using the
ACT TEMP
item.
4. When the camera reaches the selected calibration temperature, the Black Calibration
process starts. It takes about one minute to complete.
– During the process, you can monitor Black Calibration using the STATUS item.
5. When the process is finished, the camera can be used normally.
Tip
✎
It is recommended to carry out Black Calibration when the camera is used under extreme
ambient temperature conditions. Make sure to set the
CALIBR TEMP
item to Act before
performing the calibration.
7.3 Formatting the SD Card
In some situations it may be necessary to format the camera’s internal storage (SD) Card. To
format the SD Card, proceed as follows:
1. Switch on the camera.
☞
Note
☞
Note
The user level must be set to Service to access the Service menu.
2. In the camera menu, go to the
SERVICE > SD CARD > FORMAT
item and select it. The
formatting process starts. It takes about one minute to complete.
3. During the process, you can monitor the process using the
STATUS
item.
4. When the SD Card formatting has finished, the camera can be used normally.