![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/b/57/b5770d46-25f3-4d61-a80b-5d3f9c6cdb8b/b5770d46-25f3-4d61-a80b-5d3f9c6cdb8b-bge.png)
11
Brightness and Contrast adjustment
By pressing the right hand side or the left hand side of
keys 8 (brightness) or 9 (contrast). You can adjust the
screen image. The pictures show how the image is
affected.
IBM recommends that the contrast is adjusted so that
white text on a dark background does not appear to
“bloom”. (The edges of the characters should remain
sharp).
For ergonomic reasons it is recommended that the
contrast is not adjusted to maximum.
Disabling the controls
Some users may wish to disable the monitor controls to
prevent tampering.
To disable the controls, press and hold down the right
hand side of Key 1 where you see the following symbol:
Hold the button for 15 seconds. After 15 seconds, the
screen and LED will both flash to indicate that the keypad
has been disabled. If you wish to re-enable the controls,
repeat this process.
9
8
use.doc Page 11 Sunday, July 16, 1995 3:45 PM