SECTION 4
Troubleshooting
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Contrast and Backlight Adjustments
Contrast and backlight adjustments brighten or darken the LCD screen. The
steps differ between the 30-key (alphanumeric) keyboard and the 56-key
(numeric) keyboard.
Adjust Contrast
To adjust the contrast, press the gold (shift) key, then the Contrast Up (or
Down) key. The icons shown typically appear above the [A] and [B] keys
on a 56-key keyboard and above the [7] and [8] keys on a 30-key keyboard.
Adjust Backlight
To adjust the backlight, press the gold (shift) key, then the Backlight Up (or
Down) key. The icons shown typically appear above the [C] and [D] keys
on a 56-key keyboard and above the [4] and [5] keys on a 30-key keyboard.
Turn Backlight On or Off
To turn the backlight on or off, press the gold (shift) key, then the Backlight
On/Off key. The default condition for the backlight is maximum brightness,
but adjustments are retained for when the backlight is turned on. The icon
shown typically appears above the [E] key on a 56-key keyboard and above
the [9] key on a 30-key keyboard.
Contrast
Contrast Down
Backlight Up Backlight Down
Backlight On/Off
Up
Figure 4-1
Contrast and Backlight Adjustment Icons
6200 and 6210 Hand-Held Computers Troubleshooting Guide 4-11