ADDER AdderLink LPV154T Handbuch - Seite 13

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Video sharpness adjustment

Each receiver module has a video adjustment to control picture sharpness

on the connected video display screen.

To adjust video sharpness

1 On the host system, display a suitable high contrast image (ideally with

one or more black vertical lines on a white background (e.g. a capital

'H' at 72 points in a word processor).

High contrast

Black or bright white shadow on

black character on

the right indicates the need for

white background

sharpness adjustment

2 Insert a small screwdriver into the adjustment screw on the side of the

receiver module.

3 Turn the screw fully clockwise - you should see a bright white shadow to the

right of your high contrast image

4 Turn the screw anti-clockwise until the white shadow disappears and the

edges of your image become sharp.

Note: As link cable lengths increase and more receivers are cascaded, colour

separation effects may become noticeable within displayed video images,

particularly at higher resolutions. These effects are called 'skew' and result from

differing delays on the red, green and blue colour signals as they travel to the

receivers. If such results occur, ensure that link cables are no longer than they

need to be or try using 'low-skew' cables.

Use a standard flatblade

screwdriver to adjust the

sharpness of the video image

Resetting the transmitter unit

It is possible to reset the transmitter unit either by disconnecting and

reconnecting the power input or by using switch 4 of the miniature switch

block:

4 3

2 1

Momentarily click switch 4 to the ON position and then return it to its OFF

position. The transmitter will reset itself.

Note: All other switches are reserved for future use and should remain OFF.