Extron electronic QSD 204 D manual Advanced Configuration, Serration pulse removal Serration

Installation and Operation, cont’d

positive or negative H and V sync by rotating either the Adjust horizontal () or Adjust vertical () knob.

If the previous output signal was specified as RGsB or YUV, this submenu will not be displayed because this menu is only active for RGBHV.

Serration pulse removal (Serration)

When set on, serration pulses are removed from the output vertical sync pulse. LCD, DLPs, and plasma displays must have the serration pulses removed from the sync signal in order to display properly. Flagging or bending at the top of the video image is a sign that the serration pulses should be removed. Using either the Adjust horizontal () or Adjust vertical () knob, set the serration pulse removal to either “On” or “Off”. The default is “Off”.

Advanced Configuration

The following flowchart provides an overview of the Advanced Configuration submenus and the options for each setting.

EXTRON QSD204D

MENU

INPUT

CONFIG

MENU

OUTPUT CONFIG

MENU

ADVANCED

CONFIG

NEXT

DETAIL 016

NEXT

FILTER

OFF <ON>

NEXT

BLUEMODE <OFF> ON

NEXT

AUTOSW

<OFF> ON

Either Adjust knob is used to adjust the submenus

Detail (sharpness)

•Ranges from 0 to 63. (default is 16)

Filter

•On (default)

•Off

Display blue and sync only

•On

•Off (default)

Autoswitch mode

•On

•Off (default)

NEXT

ENH MODE <OFF> ON

Enhanced mode (gain control)

•Off (default)

•On

NEXT

Detail control

This submenu allows adjustment of the image detail (sharpness) of the output display. The adjustment ranges from 0 to 63. The default is 16.

Using either the Adjust horizontal () or Adjust vertical () knob, adjust the detail while observing the output display.

Filter mode

The Filter mode, when set “On”, reduces or eliminates aliasing and the resultant “jail bar” effect. For digital displays, set the filter “On” to reduce or eliminate high frequency noise. For CRT output, set the filter “Off”.

Use either the Adjust horizontal () or Adjust vertical () knob to specify this mode as “On” or “Off”. The default is “On”.

2-12 QSD 204 • Installation and Operation