Compaq LTE Elite User Manual

VBatt1 Circuits
The VBatt1 circuits provide 10 to 18.5 volts to the following:
o Computer (while docked)
o Docking mechanism
VBatt2 Circuits
The VBatt2 circuits provide 10 to 18.5 volts to the following:
o Battery charger in expansion base
o Voltage regulator on the expansion base system board, which converts 18.5
volts to 5 volts for the microcontroller, sensors, and wiring harness.
NOTE: The microcontroller controls the VBatt2 circuits.
Power-Up Sequencing
The VBatt1 and VBatt2 circuits power up whenever the expansion base is
connected to external power, whether the expansion base is on or off. This
allows a battery pack to be charged both in the computer and the expansion
base while power is off to the rest of the system.
The main expansion base circuits do not power up until the computer is
fully docked and the power switch is pressed. Once this happens, the
controller sends out a power-up signal to the main expansion base circuits
and a power-up signal to the docked computer.
NOTE: When a Compaq LTE Lite is docked in the expansion base, power for the
system can be turned on only with the expansion base power switch.
When a Compaq LTE Elite is docked in the expansion base, power can be
turned on with either the expansion base power switch or the computer
power switch.
Docking Mechanism

Compaq LTE Elite Specifications

General

Brand	Compaq
Model	LTE Elite
Category	Laptop
Language	English