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Chapter 6: Diagnostics Specification 6-37
Comp. Value=146,
Offset=0
Output Value=146
Press and hold the Yes key to lighten the contrast on the display
screen. Press and hold the No key to darken the contrast on the display
screen.
WARNING
If the contrast is set too dark, images may burn into the
LCD screen. It is recommended that the screen be set
where images can be seen clearly without making them
too dark.
Press the Enter or Cancel key to return to the LCD CONTRAST menu.
Pressing the Cancel key exits the session and starts the NCR 5992
application.
Show Touches
The show touches diagnostics allow you to check the pixels on the
display screen. Select SHOW TOUCHES from the DIAGNOSTICS
menu:
A blank (all pixels off) screen displays. Using the stylus or your finger,
touch the display screen. Where the screen is touched, a pixel will turn
on. If the pixel turned on is not approximately where you touched the
screen, run the CALIBRATION diagnostics to recalibrate the digitizer.
This test runs approximately 30 seconds. After 30 seconds the test is
automatically ended and the DIAGNOSTICS menu displays. Pressing
the Cancel key exits the session and starts the NCR 5992 application.