Acer Travelmate 5000 Maintenance Manual

							1.2.6.2 EZ-Dock Port Replicator
The EZ-Dock Port Replicator includes the multi-port adapter features of
EZ-Dock Plus (serial, parallel, external keyboard, external mouse, external
VGA monitor connectors) but does not include the additional features
(PCMCIA, SCSI and multi-media support features).  The two port replicators
have the same footprint and basic connectivity features.
1.2.6.3 Notebook External Connectors
External connectors on the notebook support (as shown in Figure 1-7)
connection to a variety of external devices including:
·External PS/2 keyboard or PS/2 Mouse
·External VGA Monitor (with simultaneous LCD display if enabled)
·Serial RS-232-C Port for connecting to an external serial device
·Parallel, Bi-Directional Printer 
·160-Pin PCI Expansion Bus (PCI Bus plus sidebands) to drive a
attached Docking Systemoption
·Infrared interface for communication with IRDA-compliant devices.
1.3 Notebook Hardware Features
1.3.1 CPU/RAM Subsystem
The Pentium-based notebook runs at a system bus speed of 50 MHz and a
processing clock rate of 75MHz. As a standard feature, the notebook
contains 8MB of 70 ns page-interleaved DRAM and 256KB of 15-ns static
RAM for external cache. DRAM memory can be expanded to 32 MB using
two DRAM Expansion Board options (expansion boards install from the
front of the notebook by removing the floppy bezel as shown in Figure 1-9). 
c
Caution: The RAM module option contains components that are sensi-
tive to static electricity. When handling the module and the internal
parts of the computer, protect against static electricity by using wrist
or ankle grounding straps and grounded working mats. When moving
or storing items, use the anti-static bags supplied with the items.
The first memory option may be either 8 MB or 16 MB; a second 8 MB board
(Shuttle RAM option) can be installed onto the first expansion module as
shown in Figure 1-9.
  
1-14 General Description 
						

							As shown in Figure 1-2, the Pentium version of the TM5000 Notebook also
contains a higher performance hard disk subsystem. The IDE hard disk
drive is interfaced to the VL local bus and achieves I/O operations in the 11
million to 14 million operations per second. 
1.3.2 ROM Memory
All versions of the TM5000 notebook family use a Flash ROM which is a
40-pin TSOP device with Boot Block logic that allows for reprogramming of
ROM without destroying its boot capability. The Flash ROM device contains
both the main system BIOS and the VGA BIOS. 
8MB or 16MB RAM
Expansion Module
8MB Shuttle RAM Module
Up to two RAM Expansion Boards
may be user-installed onto the 
Main Board by removing the 
Bezel below the Floppy Drive.
Figure 1-9  RAM Expansion Features
  
General Description 1-15 
						

							1.3.3 Hard Disk Subsystem
The TM5000 Notebook family features a user -replaceable, 2.5 inch, (initially
either 810 million byte or 524 million byte capacity) enhanced IDE interface
Hard Disk Drive. Both drives have a 128KB buffer and can transfer data in
or out of the buffer at a 4.5 MB/second rate across the ISA Interface using
the 2 of 7 RLL code recording method.
The hard drive also features built-in power conservation features configured
from the standard CMOS Setup Routine. An Automatic Power Down mode
can be selected which powers down the drive motor during periods of
inactivity. An additional level of power conservation may also be selected
which powers down the motor plus all control circuits. 
The hard drives are factory formatted as a single drive (Drive C:) and are
preloaded with software (MS-DOS, Windows and TI Utilities).
In all Pentium-based notebooks, the hard drive is connected to the VL-local
bus for increased performance.
1.3.3.1 Access to Hard Disk Drive
Access to the hard drive is provided through a removable panel on the
bottom of the notebook (removal/replacement instructions for the hard
drive are provided in Section 5).
1.3.4 Floppy Diskette Subsystem
The notebook series include a front-mounted, 3.5 inch floppy diskette drive
which is capable of reading/writing 1.44 MB floppy diskettes. An activity
indicator for the floppy drive is located along the front edge of the notebook. 
1.3.5 Keyboard Subsystem 
The TM5000 Notebook uses an 83-key keyboard (84 keys for international
versions) similar in layout to the TM4000E Notebook Keyboard emulating all
functions of an IBM AT -101/102 keyboard. A Special Function key (Fn
allows some of the TM5000 keyboard keys to take on additional functions
See Figure 1-10). 
 The keyboard’s 4mm key travel gives the touch and feel of a full-size
workstation keyboard. The Point, which is a pressure-sensitive mouse
device, is embedded in the keyboard. The select switches for the built-in
mouse device are located just below the keyboard. 
Some of the major features of the keyboard include:
·4-mm Key movement 
·Integrated numeric keypad
·Inverted T Cursor Control Key Layout
  
1-16 General Description 
						

							·Special Keys for the following:
·Setup Menu (Fn-ESC)
·Standby Mode (Fn-F4)
·Scroll Lock Mode (Fn-F6)
·Num Lock Mode (Fn-F7)
·Real-Time Sound Volume Adjustment (CTRL-ALT-U or
CTRL-ALT-D)
·Real-Time CPU Speed Adjustment (CTRL-ALT-UP/DOWN
Arrow)
·Separate keys for Page Up, Page Down, F11 and F12 plus inverted
T.
Functionally, the Keyboard Subsystem comprises the following major
circuits: 
·Keyboard Assembly
·Keyboard Controller (implemented on the Key Scan Board)
·Bus Interface Logic on the Main Board
Embedded Point Device
83/84 Key, 4mm Keyboard
Point Select Buttons
Special Function Key (Fn)
Figure 1-10  Internal Keyboard for TM5000 Series
  
General Description 1-17 
						

							1.3.6 Video Display Subsystem
The initial offering of the TM5000 Series Notebook Family contains a
built-in TSTN (Triple Super Twist Nematic) active matrix color LCD with
CCFT (Cold Cathode Fluorescent Tube). The LCD has a VGA compatible
resolution of 640 by 480 pixels. All members of the TM5000 family support
simultaneous LCD and external VGA display at 640 x 480 resolution.
At the heart of the notebook’s video subsystem is a powerful video engine,
the Cirrus Logic CL-GD7542 GUI-accelerated Super VGA LCD Controller
with MotionVideo 
tm implemented on the Main Board. Features of this video
engine include: 
·32-bit Block Transfer Engine with GUI Acceleration
·640 x 480 LCD support
·True-color capability
·Motion-Video architecture with live video overlay
The video subsystem includes a 2 MB RAM memory, 32-bit DRAM bus, and
separate display and memory clocks. An additional frame buffer/accelerator
DRAM increases the available memory band width for CPU accesses. The
video section also uses additional levels of write FIFOs, a read cache, page
mode DRAM and full 32-bit bus access to produce a high performance video
system.
1.3.6.1 High Resolution VESA and Extended Modes 
The video engine in the notebook is capable of operating at dot clock rates
programmable up to 85 MHz at 5.0 V or 65 MHz at 3.3 V and supports
standard VGA and VESA high-resolution extended modes at refresh rates
up to 75 MHz. The internal palette can be configured as an
industry-standard RAMDAC to provide a palette of 256K colors or
configured for direct color displays of 32K, and 65K colors.
In addition, the video engine supports the following Super VGA modes:
·640 x 480 with up to 65K colors on LCD and CRT
·800 x 600 with up to 65K colors on LCD and CRT
·1024 x 768 with up to 256 colors on CRT
·1280 x 1024 with up to 256 colors on CRT (interlaced)
1.3.7 Sound Subsystem
All members of the TM5000 series include a Jazz 16 Sound chip set which
supports stereo digital recording and playback, microphone and line input,
automatic gain control, 20-voice FM music synthesizer, 44.1 Khz audio
recording and playback, built-in file compression/decompression, and
built-in power amplifier with volume control. Jazz 16 software supplied with
the system provides for computer control of all sound features. 
  
1-18 General Description 
						

							1.3.8 External Ports 
The TM5000 Notebook contains external connectors on the left, right and
rear of the notebook as shown in Figure 1-11. Sound, power and external
keyboard connectors are located on the left side of the notebook; the back of
the unit contains connectors for a parallel printer, external VGA monitor,
serial com, and expansion device such as the EZ-Dock Port Replicator.  The
right side of the notebook contains the infrared interface as shown in Figure
1-11. 
160-pin Expansion Bus
(Connects to docking system option)
Infra-Red Interface
25-Pin Parallel
Bi-Directional Port9-Pin Serial
Port15-Pin External
VGA Port
Audio In (From output of 
CD-ROM Player, Tape Player, 
Radio, Etc.)
External Microphone
Input- Disables internal 
microphone when external 
mic is plugged in. PS/2 Port- (For connecting 
external PS/2 Keyboard, 101
Type Keyboard (With Adapter), PS/2
Mouse or Cable Connect Numeric Keypad 
Option)
Audio Out (To headphones
or external speakers; disables
internal speaker)
AC Adapter Connector
Figure 1-11  Notebook External Ports
  
General Description 1-19 
						

							1.3.8.1 Bi-Directional Parallel Port
The TM5000 notebooks include a 25-pin Parallel Printer Port with EPP/ECP
bi-directional modes. The parallel port is implemented using a standard
25-pin, female, D-subminiature connector.
1.3.8.2 External VGA Port
The external VGA port is implemented with a high density, 15-pin female,
D-subminiature connector. 
n
Note:  See Appendix E for additional information regarding supported moni-
tor types.
1.3.8.3 PS/2 Keyboard/Mouse/Numeric Keypad Port
The Notebook is equipped with a 6-pin circular mini-Din connector that may
be used to connect an external PS/2 Mouse, external PS/2 Keyboard (or
101 Keyboard using an adapter), or the PS/2 Numeric Keypad option.
However only one device may be connected to the port.  
1.3.8.4 Serial Port
The TM5000 Series Notebooks include a 9-pin, industry standard, RS-232-C
serial (16550 UAR T) Com port (9-pin, male, D-type connector) as a standard
feature. This port can be used to connect to any external device conforming
to RS-232-C standards.
1.3.8.5 Infrared Interface
The infrared interface (Figure 1-12), located on the right front area of the
Notebook, contains the serial Infrared transmitters/receivers required to
communicate with an external device containing an industry-standard IRDA
infrared interface (eg. mouse, keyboard, another computer, etc.). 
Infrared Interface Port
Figure 1-12  Infrared Interface
  
1-20 General Description 
						

							1.3.8.6 PCI Expansion Bus Interface
The TM5000 Notebook is equipped with a 160-pin PCI expansion bus that
includes the PCI bus, VESA Video Feature interface, MIDI interface, Power
Control and Plug N Play interfaces. 
1.4 Notebook Expansion Capabilities
The notebook computer can be equipped with the following field-installable
options: 
·8 MB RAM Expansion Option, P/N 9798816-0001 
·16 MB RAM Expansion Option, P/N 9798816-0002
·8 MB Shuttle Memory Expansion, P/N 9798816-0003
·Headset and Microphone Option Kit, P/N 9793399-0001
·Cable Connect PS/2 Numeric Keypad, P/N 2581381-0001
·Spare AC Adapter, P/N 9786218-0001
·External Battery Charger, P/N 9793360-0001 
·Spare Li-Ion Battery Pack Kit, P/N 9786217-0001
·PCMCIA options 
·14.4KB Data/Send/Receive Fax Modem Option, P/N
9798074-0001
·Token Ring Option, P/N 9791774-0001
·Ethernet 10BaseT Twisted Pair Option, P/N 9791773-0001
·Ethernet 10Base2 Thin Coaxial Cable Option, P/N
9791773-0002
·Executive Carrying Case, P/N 2567028-0001
·High Density to High Density SCSI Connector, TI P/N 9794074-0001
·Third Parity External PS/2 keyboard (or external mouse)
These options are briefly described in the following paragraphs. 
1.4.1 Memory Expansion 
Three RAM Expansion Option boards are available for the TravelMate 5000
Series including:
·8 MB RAM Module Kit (TI Part No. 9798816-0001)- This kit allows
you to increase RAM memory size from 8 MB to 16 MB.
·16 MB RAM Module Kit (TI Part No. 9798816-0002)- This kit allows
you to increase RAM memory size from 8 MB to 24 MB.
  
General Description 1-21 
						

							·8 MB Shuttle Memory Option Kit (TI Part No. 9798816-0003) - This
Kit installs on one of the other RAM Module options (expands RAM to
32MB if installed on 16MB RAM Option boards)
These RAM expansion kits are user -installed as detailed in Section 2. 
1.4.2 Headset and Microphone Option Kit
The Headset and Microphone Option Kit, Part No. 9793399-0001, contains
an external microphone and set of headphones for use with the multi-media
notebook.  When the external devices are installed, the internal microphone
and speaker are disabled.
1.4.3 PS/2 Numeric Keypad Option
The PS/2 Numeric Keypad option, TI P/N 2581381-0001, is available to
support business accounting applications. This option installs on the 6-pin
MINI-DIN connector on the left side of the Notebook.  When installed,
numeric data can be entered from the Keypad while the notebook keyboard
remains active.
1.4.4 External Battery Charger
The External Battery Charger option, TI P/N 9793360-0001, permits rapid
charge of the Notebook’s Lithium-Ion battery packs outside of the notebook
environment. 
1.4.5 Extra Battery Option 
A spare Lithium-Ion battery pack, P/N 9786217-0001, is available to
increase the time the notebook can operate on battery power. 
  
1-22 General Description 
						

							1.4.6 Notebook Carrying Case Options
The following carrying cases are available for the TM5000 Notebook
Computer:
·Leather Portfolio (TI P/N 2567028-0001) - carries only the notebook
·Deluxe Carrying Case (TI P/N 2568069-0001) - carries the notebook
and smaller accessories.
·Executive Briefcase (TI P/N 9793372-0001) - a larger carrying case
for the notebook, docking system and accessories.
1.4.7 PCMCIA Card Options
The Notebook contains an onboard PCMCIA Controller (Cirrus CL-GD6720)
and two 64-pin sockets that can accept up to two credit-card size (14.5mm)
Type III or one Type I or II PCMCIA option cards.  Some of the options
available from Texas Instruments include: 
·14.4KB Data/Send/Receive Fax Modem Option, P/N 9798074-0001
·Token Ring Option, P/N 9791774-0001
·Ethernet 10BaseT Twisted Pair Option, P/N 9791773-0001
·Ethernet 10Base2 Thin Coaxial Cable Option, P/N 9791773-0002
Other third party PCMCIA options on the market today include hard drives,
flash memory, modems, etc. These options require downloading the
appropriate Phoenix Device Driver software using the PCMCIA
PhoenixCARD Manager software supplied with the Notebook.  See manual
in PheonixCard Manager Kit for additional information. 
1.5 Standard Test Features
The TravelMate 5000 Series Notebook Computers use modular design and
built-in test features to reduce the mean-time-to-repair. A power on self-test
automatically verifies the operational state of the primary circuits and a
powerful suite of diagnostic tests (known as PC-Doctor) are available to
further test selected parts of the system.
1.5.1 Built-In Self Test
The notebook computer contains a built-in self test that automatically
performs a test of memory and all major circuits each time the computer is
powered up. In the event of a failure, the computer displays a descriptive
error message and issues a series of coded beeps (in case the display
subsystem is not functioning).  The coded beeps are listed and described in
Section 4 of this manual.
If self test completes normally, the computer displays the amount of
memory tested and loads the Operating System and Windows environment. 
  
General Description 1-23