GAM–Gamma Power Value
Defines the exponent used in a standard Power Law function.
This command is only available if the base gamma curve is set to Power Law function.
The gamma control and files are set when the PIU command is off.
Commands
Command
Description
Values
GAM <exponent>
Sets the exponent for the Power Law function used for the gamma
transfer function. This command is only available if video
electronics are on. (Saved value)
1000 to 3000
2200 (Default)
GAM+MAXL
Adjusts the maximum screen luminance, used by the ITU-R BT.
1886 setting.
100 to 2000
1000 (Default)
GAM+MINL
Adjusts the minimum screen luminance, used by the ITU-R BT.1886
setting.
0 to 1000
10 (Default)
GAM+SLOP <value>
Defines the slope of the linear section at the bottom of the curve.
This command is only available if video electronics are on. (Saved
value)
1 to 100
1 (Default)
Examples
Set the base gamma curve function to 2.6:
(GAM 2600)
Set the base gamma curve function to 1.0:
(GAM 1000)
Related information
BGC–Gamma Function (on page 16)
GIO–General Purpose Input/Output
Controls or monitors the state of the general purpose inputs and outputs.
The pins reserved for 12V and ground cannot be read, set, or configured. For a mapping of the IO pins
to the physical connector pins, refer to the Crimson User Manual (P/N: 020-102649-XX).
Commands
Command
Description
Values
GIO+CONFG?
Returns the direction for the individual pins.
—
GIO+STAT?
Returns the status of all inputs. (Read-only)
—
GIO+STAT "<xxxxxx>"
Gets the state of all inputs or sets the state of all outputs.
H = High
Serial API commands
Crimson and Crimson Mirage Technical Reference–Serial Commands
31
020-102660-01 Rev. 1 (07-2018)
Copyright
©
2018 Christie Digital Systems USA, Inc. All rights reserved.
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