Dell Latitude LM Service Manual - Page 21

U.S. and Canada; 88 Europe; 89 Japan, QWERTY/AZERTY/Kanji - power supply

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Table 1-2. Technical Specifications (Continued) Dual-Scan Display (Continued) Dot pitch 0.29 mm Power consumption 3.4 W Controls brightness and contrast can be controlled through key combinations Keyboard Number of keys 87 (U.S. and Canada); 88 (Europe); 89 (Japan) Key travel 3.0 ± 0.5 mm (0.12 ± 0.02 inch) Key spacing 19.1 mm (0.75 inch) Layout QWERTY/AZERTY/Kanji Touch Pad Interface PS/2-compatible X/Y position resolutions . . . . . 20 points/mm (500 points/inch) Size: Thickness 4.65 mm (0.18 inch) at highest component Width 62.1-mm (2.4-inch) sensor-active area Height 49.0-mm (1.9-inch) rectangle with 0.5-mm (0.02-inch) tabs Weight 15 g (0.52 ounce) ± 0.5 g (0.001 ounce) Power: Supply voltage 5 V ± 10% Supply current 4 mA (maximum operating current) System Overview 1-11

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System Overview
1-11
Dual-Scan Display
(Continued)
Dot pitch . . . . . . . . . . . . . . . . .
0.29 mm
Power consumption. . . . . . . . .
3.4 W
Controls. . . . . . . . . . . . . . . . . .
brightness and contrast can be controlled
through key combinations
Keyboard
Number of keys. . . . . . . . . . . .
87 (U.S. and Canada); 88 (Europe); 89 (Japan)
Key travel . . . . . . . . . . . . . . . .
3.0
±
0.5 mm (0.12
±
0.02 inch)
Key spacing. . . . . . . . . . . . . . .
19.1 mm (0.75 inch)
Layout . . . . . . . . . . . . . . . . . . .
QWERTY/AZERTY/Kanji
Touch Pad
Interface . . . . . . . . . . . . . . . . .
PS/2-compatible
X/Y position resolutions . . . . .
20 points/mm (500 points/inch)
Size:
Thickness . . . . . . . . . . . . .
4.65 mm (0.18 inch) at highest component
Width
. . . . . . . . . . . . . . . .
62.1-mm (2.4-inch) sensor-active area
Height . . . . . . . . . . . . . . . .
49.0-mm (1.9-inch) rectangle
with 0.5-mm (0.02-inch) tabs
Weight. . . . . . . . . . . . . . . .
15 g (0.52 ounce)
±
0.5 g (0.001 ounce)
Power:
Supply voltage . . . . . . . . .
5 V
±
10%
Supply current. . . . . . . . . .
4 mA (maximum operating current)
Table 1-2.
Technical Specifications
(Continued)