TAG 20 Series The characters on the screen are dim, Bad dots appear on the display at all times

If the power button does not respond to a light touch, press the button firmly.

If you are using battery power, make sure that it has a charge remaining and that it is installed correctly.

During operation, the screen may automatically turn off as a result of power management. Press any key to see if the screen comes back.

The brightness level might be too low. Increase brightness by pressing on the brightness/volume control button on the front panel of the Tablet PC.

The display output might be set to an external monitor.

Reset the Tablet PC by pressing Ctrl+Alt+Del keys if you are using an external keyboard.

Try turning the computer off, wait a few seconds, and then turn it back on.

The characters on the screen are dim.

Adjust the brightness.

Bad dots appear on the display at all times.

A small number of missing, discolored, or bright dots on the screen are an intrinsic characteristic of TFT LCD technology. It is not regarded as a LCD defect. The Inspection Standard generally agreed in the LCD industry allows a maximum of 8 pixels on a unit.

Term definition:

Bright dots

Dark dots

Distance between defective dots

Adjacent defective dots

When the LCD screen is lighted, dots appear bright at a dark area. Red/green/blue bright dots also count.

When the LCD screen is lighted, dots appear black at bright areas.

The minimum distance between two defective dots.

Defective dots within a radius of 10 mm.

8-6 Troubleshooting