Acer Extensa 450 Maintenance Manual

							Specifications Models 450/450T Models 455/455T
SoftwareWindows 95 Windows 95,plus
applications
Physical Characteristics
Weight:  Approx. 5.0 Pounds
(2.27kg) *Approx. 5.0 Pounds
(2.27kg)
Dimensions: 11.7” (L) X 1.7” (H) X
8.2” (W)11.7” (L) X 1.7” (H) X
8.2” (W)
* Wight specifications
do not include Floppy
Drive, AC Adapter or
2nd Battery
1.8 Agency Approvals
All Extensa 450 Series products meet the following standards: 
·Underwriter’s Lab (UL) Standard 1950 (safety)
·Canadian Standards Association (CSA) Standard 220 (safety)
·FCC CFR 47, Part 15, Subpart J, FCC Level B (EMI)
·Canadian Department of Communications (DOC) Certification
·VDE 0871, Class B (EMI)
        
 General  Description 1-13 
						

							2
Installation  
2.1 Introduction
This section contains unpacking and preparation for use instructions for the
Extensa 450 Series Notebook Computers. 
2.2   Unpacking Instructions
The packaging diagram for the notebook computer is shown in Figure 2-1. Unpack
the computer using the following instructions:
1.
 Carefully cut the tape that seals the top flap of the shipping carton.
2.
 Remove the computer and the accessories from the main shipping carton.
3.
 Remove all protective coverings from the computer.
4.
 Remove the holding tape and open up the accessory box; remove the contents.
nNote:  Save the shipping containers and packaging for later reuse. 
2.3   Installing Notebook Options 
If you have no options to install at this time, skip to Paragraph 2.3. Otherwise,
continue with Paragraph 2.2.1.
2.3.1   Installing Dual Inline Memory Module(s) 
nNote: 
If not installing RAM Expansion option at this time, skip to the next para-
graph.
cCaution: The Dual Inline Memory Module  contains components that are
sensitive to static electricity. When handling the module and the inter-
nal parts of the computer, protect against static electricity by using
wrist or ankle grounding straps and grounded working mats. When mov-
ing or storing items, use the anti-static bags supplied with the items.
       
Installation 
2-1 
						

							1.     Ensure that the notebook is powered off and that the AC Adapter and internal
battery pack(s) is (are) removed from the notebook. 
2.       Remove the DIMM module(s) from its shipping container.
3.     Release the Keyboard by pulling the keyboard release tabs forward (tabs are
located underneath the Ctrl and right arrow keys).
4  Disengage the Keyboard using a straight blade screwdrive and gently lifting up
along the front edge of the keyboard.
5    Using the back edge of the keyboard as a hinge, lift the front edge of the
keyboard up and lay it against the display.
6.
        Remove the two Phillips head screws holding heatsink to the Main Board
and remove the heatsink by lifting it upwards and out of the unit.
7.    Insert the edge of the DIMM Board into the rear of either available connector
(see Figure 2-1). Use a rocking motion to fully insert the module. Push
downwards on each side of the DIMMs module until it snaps in place.
8. Replace the heatsink, keyboard assembly and any other components removed in
step 1.
This completes the expansion memory module installation procedure.
Figure 2-1   Installing Additional Memory 
     
2-2 Installation 
						

							2.3.2   Installing PCMCIA Options
The Notebook has provisions for one Type I or Type II PCMCIA option card.
However, a type III PCMCIA device can be installed if the Floppy Drive is removed
from the notebook and the optional PCMCIA Module is installed.. 
1.         Review the installation instructions supplied with the PCMCIA option card(s).
2.        Open the Type I/II PCMCIA compartment cover on the left side of the
notebook.
3.        To insert a PCMCIA card, align the card with the socket and slide the card
into the socket until it locks into place. To install a Type III option, you must
remove the Floppy Drive from the right side of the notebookand install the
PCMCIA Option Assembly..
4.        To eject a PCMCIA card, first ensure that the notebook is not accessing the
memory card or device. Under Windows 95, go to the Control Panel, PC Card
and direct the card to stop before removing card.
Type III PCMCIA
If Floppy Drive Removed
and PCMCIA Option installed
Type 1 or Type II PCMCIA
Option
Figure 2-2   Installing PCMCIA Options
       
Installation 
2-3 
						

							2.3.3  Installing the Port Adapter 
nNote:  Skip this paragraph if not installing the Port Adapter at this time.
To install the Port Adapter, refer to Figure 2-3 and use the following procedure:
1   Remove the -port adapter and any accessories from its shipping carton .
2   Disconnect the AC Adapter from the notebook (if attached).
3   Open the rear connector door on the notebook and attach the Port Adapter to the
notebook as shown in Figure 2-3.
 
Figure 2-3   Installing the Port Adapter
     
2-4 Installation 
						

							2.3.4   Installing the Optional Numeric Keypad  
An optional numeric keyboard can be attached to the notebook via the notebook’s
PS/2 connector as shown in Figure 2-4.
 
2.4  Installing the Battery Pack(s )  
The standard configuration of the Extensa Notebook is equipped with a single
battery pack that is inserted from the front right side of the computer. However, if
you can do without the Floppy Drive, you can use the floppy drive bay to house a
second Lithium Ion battery pack.
To remove or replace the battery pack, follow the steps below.
1.Power off the notebook, being sure to save your data first.
2.Locate the battery door (right side of notebook near the front). Press the battery
door inwards and slide the door toward the front of the notebook; remove the
battery door.
3.Insert a new or recharged battery pack into the battery compartment bay. Make
sure that the contacts are facing up and to the rear of the compartment.
Check the label (facing up when inserted) indicating the positive and
negative poles of the battery.
Figure 2-4   Installing the Numeric Keypad option
       
Installation 
2-5 
						

							cCaution:  There is danger of explosion if the battery is incorrectly re-
placed. Replace the battery only with the same or an equivalent type
recommended by the manufacturer. Discard used batteries according to
the manufacturer ’s instructions.
2.5   Installing External Devices
Most external devices connect to the Notebook via the connectors on the rear of the
notebook and on the rear of the Port Adapter supplied with the notebook (see Figure
2-5 for port assignments).
2.5.1  Installing an External Keyboard/Mouse 
As shown in Figure 2-6, the notebook has provisions for two external PS/2
compatible devices (keyboard, mouse, etc.) that may be attached to the notebook.
The pinouts for the 6-pin Mini-DIN connectors are also provided in Figure 2-6.
Figure 2-5   Extensa Port Assignments
     
2-6 Installation 
						

							To install an external keyboard or external PS/2 mouse on the notebook, use the
following procedure:
1. Ensure that the notebook is powered off.
2.Locate the external PS/2 ports at the rear of the notebook (see Figure 2-6).
3. Attach the PS/2 cable from your mouse and/or keyboard cable to the PS/2
port(s).
4. Power on any other peripheral devices you may have connected to the notebook,
and then power up the notebook.
PS/2 Ports
Figure 2-6   PS/2 Port Assignments/Pinouts
       
Installation 
2-7 
						

							2.5.2  Installing External Parallel Printer
The Notebook is equipped with a bi-directional, ECC/EPP compatible, 25-pin
parallel printer port. The connector pinouts and connector location are shown in
Figure 2-7. 
If you will be using a parallel interface, connect the 25-pin male connector of your
printer cable to the 25-pin female parallel port on your notebook. Refer to the
manual which accompanied your printer for instructions on configuring your
operating environment 
2.5.3  Installing External Serial Port Device 
The notebook contains an RS-232 serial port with a male DB-9 connector as shown
in Figure 2-8. The serial ports are used to interconnect such devices as: 
·External Modem
·Serial Printer
·Any device that uses an RS-232 interface
To connect a printer to the notebook, ensure that both the notebook and the printer
are turned off.
Figure 2-7   Parallel Port Location/Pinouts
     
2-8 Installation 
						

							cCaution:  Never connect a parallel device to a serial port or a serial de-
vice to a parallel port or video port; this may cause damage to the Note-
book and/or peripheral device. If you are uncertain of what type
connector the external device has, refer to the technical manual for the
external device.  
Figure 2-8   Serial Port Location/Pinouts
       
Installation 
2-9