Acer Extensa 450 Maintenance Manual

2.5.4  Installing External VGA Monitor
The notebook is capable of driving both its internal LCD display and an external
VGA monitor (LCD only, simultaneous, or VGA only). The external monitor
connector pinouts and connector locations are shown in Figure 2-9. To install an
external monitor with the notebook, use the following steps:
1. Ensure that both the notebook and the external monitor are turned off.
2.Locate the 15-pin female VGA port on the Port Adapter.
3.Attach the appropriate end of the monitor...

2.6  Installing the AC Power Adapter  
Use the following procedures to connect the AC Adapter to the system:
cCaution: Use only the AC Adapter supplied with the computer; other
adapters can damage the unit.
1.
  Remove the AC adapter from the packaging. Connect the round coaxial connector
supplied with the notebook to the power receptacle on the rear of the
notebook as shown in Figure 2-10.
2. Connect the female side of the AC Power cord to the AC Adapter and connect the
male end to a grounded AC...

2.7   Initial System Checkout 
After you’ve installed all internal options and external cabling, you’re ready for
system checkout and software configuration. 
To check out the system, set the power switch on the notebook to the On (I
) position
which initiates the notebook self test. During self test execution, the computer
checks the operation of all key hardware including memory and CPU (and displays
copyright and version number data during test execution).
Upon successful conclusion of self test, the...

2.9   Making Backups of System
Software
The Notebook is preloaded with Windows 95 operating system software. Prior to
extended use of the notebook, create a backup set of system software using the
Backup Utility under Windows 95. In the event of a disk problem, you can restore
your system using the Restore Utility and the set of backup diskettes you’ve just
created. 
2.10  Loading Application Software
For assistance in loading Application Software, refer to Chapter 5 in the Extensa
Series Notebook...

3
Operating Instructions  
3.1 Introduction
The first two subsections describe the Extensa 450 Series Notebook operating
controls and indicators. The remainder of this section contains a summary of
computer operations related to notebook maintenance including how to restore
system software. 
nNote:  For additional operating instructions, see Extensa 450 Series Notebook Com-
puter Users Guide, TI Part No.9803942-0001. 
3.2  Notebook Controls and Indicators
The Extensa Series Notebooks are equipped with...

3.2.1  LCD Contrast Control
The TFT version of the notebook contains no operating controls or indicators. The
Dual Scan version of the display contains a contrast switch on the lower right side
as shown in Figure 3-1.
3.2.2 Button Switches
The notebook contains two button switches above the keyboard including:
·Power On/Off 
Switch- Alternate action, button type switch that controls power
to the unit.Pressing the Power button causes power to be applied to the
notebook and power up self test to be run....

3.2.3  Cover Release Latch
The Notebook contains one Cover Release latch . To open the notebook, slide the
Release Mechanism to the right and lift up on the front edge of the notebook cover. 
3.2.4 Touch Pad Controls
The Extensa 450 Series Notebook Computers are equipped with a built-in mouse
device called “the Touchpad” physically located at the bottom of the keyboard (see
Figure 3-1). 
The cursor is positioned by touching and draging your finger in the direction you
want the cursor to go. The select...

·Never turn off or reset the notebook while the floppy activity indicator is lit.
·Keep the AC adapter at least 6 inches away from your drive.
·Insert the floppy into the floppy drive slot with the label side up and the
metal-shutter end first. Gently push the floppy into the floppy drive slot until
the floppy clicks into place.
·To remove a floppy, press the eject button until the floppy pops out.
·Never force open the access shutter on a floppy.
·Always remove a floppy from the floppy drive before...

3.3.4   Responding to Low Battery Conditions
The computer generally will notify you when you are reaching a low battery
condition by the following: 
·Four short beeps per minute (unless battery warning is disabled)
The battery low warning is automatically disabled when the AC Adapter is installed
on the notebook regardless of the charge condition of the battery pack.
 If the AC adapter is not plugged in within threeminutes of a detected battery low
condition, the notebook enters Suspend mode. When the...

3.3.8   Rebuilding the System Software
In the event of a hard drive replacement or system board replacement which
resulted in loss of system software, you may need to rebuilt the entire system
software structure.  
 The following items are required to rebuild the system software:
·Set of backup diskettes of the system software 
·Operational Notebook  
Insert the Windows 95 Startup Diskette in the Notebook’s floppy drive and power up
the system.
nNote:For additional operating procedures, refer to  to the...