Operating instructions

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3.5.6. I/O Lock

Settings: On, Off

If I/O Lock is switched off the output is run with a fixed refresh rate determined by the frame rate setting,

which deviates from the input refresh rate, even if both are nominally at the same rate. This causes

occasional frame dropping or repeat. If I/O Lock is on the output refresh rate is following the input

refresh rate. This is achieved by modulating the output clock and works if input and output refresh rate

are nominally at the same rate, e.g. when frame rate is set to 60Hz and the video input is also 60Hz. If

e.g. the video input rate is 50 Hz and the Frame rate is set to 60Hz, the output is in free run mode. The

status line of the OSD window under Sync Mode indicates if the output signal is locked to the input

signal (I/O Locked) or in free run mode (Free Run) .

3.5.7. Native Color Temp

Settings: 5500, 6500, 7500, 9300, 10000

Native Color Temp allows the user to select from pre-configured color temperatures to match the

display. If both Native Color Temp set here in the Output menu and Color Temp set in the Color menu

are set to the same value, no conversion is performed.

3.5.8. Output Gamma

Settings: 1.0 to 3.0 in steps of 0.1

Output gamma allows to re-gamma video signals with pre-configured gamma values to match the

display. Input gamma and output gamma both default to 2.2. If they are both set to the same value,

there is no effect on the image.

Note: If e.g. an adjustment to reduce the level of red in the image is required, select a higher number for

the (input) Color Temp in the Color menu, or a lower number for the Native Color Temp in the Output

menu.

3.6. Color

This menu contains adjustments associated with setting up inputs to the unit. Use the Up and Down

keys to scroll to the required item and press the Menu key.

3.6.1. Black-Level Offset

Settings: 0 IRE, 7.5 IRE

Used to select 7.5 IRE black level set-up adjustment. Should always be set to 7.5 IRE for HDMI video

inputs and should usually be off for analog video inputs.

3.6.2. Black-Level

Settings: -50 to 50 in steps of 1

Black level controls the offset applied to the video signal.

3.6.3. Contrast

Settings: -50 to 50 in steps of 1

Contrast controls the gain applied to the video signal.