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Chapter 1
25
Brightness control
Keyboard hotkey
Keyboard hotkey
Contrast control
None
None
Electrical Specification
Supply voltage for LCD display
(V)
3.3 (typ)
3.3 (typ)
Supply voltage for LCD
backlight (Vrms)
730 (typ)
650 (typ)
AC Adapter
Item
Specification
Vendor & model name
Delta ADP-60HB
Lite-On PA-1600-19
Input Requirements
nominal voltages
(Vrms)
90~270
Frequency variation
range (Hz)
47~63
Maximum input current
(A, @90Vac, full load)
1.5A
Inrush current
The maximum inrush current will be less than 50A and
100A when the adapter is connected to 115Vac (60Hz)
and 230Vac(50Hz) respectively.
Efficiency
It should provide an efficiency of 83% minimum, when
measured at maximum load under 115V (60Hz) &
230Vac (60Hz)
Output Ratings (CV mode)
DC output voltage (V)
+19.0V~20.5V
Noise + Ripple (mV)
300mvp-pmax (20Mhz bandwidth)
Output Ratings (CC mode)
Load (A)
0 (min) 3.16 (max)
Dynamic output Characteristics
Turn-on delay time (s,
@115Vac)
2
Hold up time (ms;
@115 Vac input, full
load)
8 (min)
Over voltage protection
(OVP, V)
26
Short circuit protection
Output can be shorted without damage
LCD
Item
Specification
720.book Page 25 Saturday, March 6, 1999 10:00 AM
Summary of Contents for 721TX - TravelMate - PII 333 MHz
Page 8: ...VIII Table of Contents 720 book Page VIII Saturday March 6 1999 10 00 AM ...
Page 62: ...54 System Utilities 720 book Page 54 Saturday March 6 1999 10 00 AM ...
Page 110: ...102 Troubleshooting 720 book Page 102 Saturday March 6 1999 10 00 AM ...
Page 128: ...120 FRU Field Replaceable Unit List 720 book Page 120 Saturday March 6 1999 10 00 AM ...
Page 130: ...122 Model Definition and Configuration 720 book Page 122 Saturday March 6 1999 10 00 AM ...
Page 136: ...128 Online Support Information 720 book Page 128 Saturday March 6 1999 10 00 AM ...
Page 142: ...134 Index 720 book Page 134 Saturday March 6 1999 10 00 AM ...