Dell Inspiron 1428 (Late 2009) - Manual (Page 4)

Refresh rate 60 Hz
Operating angle 0° (closed) to 135°
Horizontal viewing angle ±40° (LED) minimum
Vertical viewing angle +15°/-30° (LED) minimum
Pixel pitch 0.1905 x 0.189 mm
Controls brightness can be controlled through
keyboard shortcuts (see the Dell
Technology Guide for more information)
Keyboard
Number of keys
87
Layout QWERTY/AZERTY/Kanji
Touchpad
X/Y position resolution (graphics table
mode)
240 cpi
Width 79.7 mm (3.13 inches) sensor-active area
Height 47.7 mm (1.87 inches) rectangle
Battery
Type
6-cell “smart” lithium ion
Dimensions:
Depth 58.23 mm (2.30 inches)
Height 21.5 mm (0.8 inches)
Width 140.6 mm (5. 54 inches)
Weight 0.41 kg (0.90 lb)
Voltage 11.1 VDC
Charge time when the computer is
turned off (approximate)
4 hours
Life span (approximate) 300 discharge/charge cycles
Display (continued)
ManU MLK2 Comprehensive Specs.fm Page 12 Thursday, March 7, 2013 1:44 PM