Acer Travelmate 280 Service Guide

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(*9) Disk: ODSC-PARA
Combo Drive Interface
ItemSpecification
Vendor & model name KME UJDA740
Performance Specification
Transfer rate (KB/sec) Read Sustained:
           DVD-ROM  MAX 8X CAV (MAX 10800 KB/sec)
           CD-ROM    MAX 24X CAV (MAX 3600 KB/sec)
Write:
           CD-R          4X, 8X (CLV), Max 16X, MAX 24X (ZCLV)
           CD-RW       4X (CLV)
           HS-RW       4X,8X, 10X (CLV)
ATAPI Interface:
           PIO mode  16.6 MB/sec :PIO Mode 4
           DMA mode 16.6 MB/sec:Multi word mode 2
           Ultra DMA mode 33.3MB/sec: Ultra DMA mode 2
Buffer rate 2MB
Access time DVD-ROM 180 ms typ. (1/3 stroke)
CD-ROM 130 ms typ. (1/3 stroke)
Start up time less than 15s
Stop time less than 6s
Acoustic noise less than 50 dBA
Interface Enhanced IDE (ATAPI) compatible
Master/Slave Set by Cable Select (By host)
PC compatible PC2001 compatible
Applicable disc format CD: 
CD-DA, CD-ROM, CD-ROM XA, CD-R, CD-RW, PhotoCD (multiSession), 
Video CD, CD-Extra(CD+), CD-text
DVD: DVD-ROM, DVD-R, DVD-RW (Ver.1.1)
Slope 15 degree (Any direction)
Dimensions, Weight 128X129X12.7mm (WXDXH)
                         (except protrusion)
200g+- 10g
Eject Soft Eject (with emergency eject hole)
Audio Interface
ItemSpecification
Audio Controller Cirrus Logic CS4299-XQ
Audio onboard or optional Built-in
Mono or Stereo Stereo
Resolution 20 bit stereo Digital to Analog converter
18 bit stereo Analog to Digital converter
Compatibility Microsoft PC98/PC99, AC97 2.1
Mixed sound source Line-in, CD, Video, AUX 
Voice channel 8/16 bit, mono/stereo
Sampling rate 44.1 KHz
Internal microphone Yes
Internal speaker / Quantity Yes/2 
						

							Chapter 124
  
 
Supports PnP DMA channel DMA channel 0
DMA channel 1
Supports PnP IRQ IRQ10, IRQ11
Video Interface
ItemSpecification
Vendor & Model Name Intel 845GL
Chip voltage Core / 2.5V, 1.5V, 1.8V
Supports ZV (Zoomed Video) port NO
Graph interface  4X AGP (Accelerated Graphic Port) Bus
Maximum resolution (LCD) 1024 x768 (32bit colors)
Maximum resolution (CRT) 1024x768 (32 bit colors)
1280x1024 (32 bit colors)
1600x1200 (32 bit colors)
Video Memory
ItemSpecification
Fixed or upgradeable Fixed, share the system memory
Video memory size 8MB
Video Resolutions Mode
ResolutionRefresh Rate
CRT Only LCD/CRT Simultaneous
640x480x256 90 60
640x480x64K 90 60
640x480x16M 90 60
800x600x256 90 60
800x600x64K 90 60
1024x768x256 90 60
Parallel Port
ItemSpecification
Parallel port controller LPC47N227
Number of parallel port 1
Location Rear side
Connector type 25-pin D-type
Parallel port function control Enable/Disable by BIOS Setup
Supports ECP/EPP  Yes (set by BIOS setup) 
Optional ECP DMA channel 
(in BIOS Setup)DMA channel 1 and 3
Optional parallel port I/O address 
(in BIOS Setup)378, 278, 3BC
Optional parallel port IRQ 
(in BIOS Setup)IRQ7, IRQ5
Audio Interface
ItemSpecification 
						

							25TravelMate 230/ 280
 
  
  USB Port
ItemSpecification
USB Compliancy Level 2.0
OHCI USB 2.0
Number of USB port 2
Location Rear side
Serial port function control Enable/Disable by BIOS Setup
PCMCIA Port
ItemSpecification
PCMCIA controller O2-Micro Cardbus Controller OZ6912T-U
Supports card type Type III
Number of slots One type III
Access location Left side
Supports ZV (Zoomed Video) port Yes
Supports 32 bit CardBus  Yes (IRQ17)
Keyboard
ItemSpecification
Keyboard controller Mitsubishi M38857
Keyboard vendor & model name API
Total number of keypads 84-/85/88- key
Windows 95 keys Yes
Internal & external keyboard work simultaneously Yes
Battery 
ItemSpecification
Vendor & model name SIMPLO
Battery Type Li-ION 
Pack capacity  2000mAH
Cell voltage  3.8V / 1.2V
Number of battery cell 8
Package configuration 4529 / 8S
Package voltage  14.8V
DC-DC/Charger Converter
ItemSpecification
Vendor & Model Name O2
Input Voltage AC Adapter or Battery: 8V - 19VDC
DC-DC Converter Output
Output Rating +5V 3.3V 12V
Current (w/load, A) 0~5A 0~4A 120mA
Charger Output Li-ION Ni-MH 
						

							Chapter 126
NOTE: DC-AC inverter is used to generate very high AC voltage, then support to LCD CCFT backlight user, 
and is also responsible for the control of LCD brightness. Avoid touching the DC-AC inverter area while 
the system unit is turned on. 
NOTE: There is an EEPROM in the inverter, which stores its supported LCD type and ID code. If you replace 
a new inverter or replace the LCD with a different brand, use Inverter ID utility to update the ID 
information.
.
Normal charge (charge while system 
is not operative)2.8A 2.25V
Background charge (charge even 
system is still operative)0.8A
Battery-low 2 level (V) 12.5V 8V
Battery-low 3 level (V) 10V 7.5V
Protection
Charger protection Over Current Protection
DC/DC converter protection OCP (Over Current Protection, A)
OVP (Over Voltage Protection, V)
UVP (Under Voltage Protection, V)
DC-AC LCD Inverter
ItemSpecification
Vendor & model name Ambit
Input voltage (V) 8 ~ 21V
Input current (mA) 1A (max.)
Output voltage
(Vrms, no load)1400Vrms
Output voltage
frequency (kHz)40 ~ 70KHz
Output Current/Lamp 5.5 mA ~ 6.5mA
LCD
ItemSpecification
Vendor & model name 14.1” AU
B141XN04  V215” Hitachi
TX38D85VC1CAB
Mechanical Specifications
LCD display area (diagonal, inch) 14.1 15
Display technology TFT TFT
Resolution XGA (1024x768) XGA (1024x768)
Support colors 262K 262K
Optical Specification
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) 650 (typ.) 650 (typ.)
DC-DC/Charger Converter
ItemSpecification 
						

							27TravelMate 230/ 280
AC Adapter
ItemSpecification
Vendor & model name Delta ADP-65DB
Input Requirements
Maximum input current (A, 
@90Vac, full load)1.5 A @ 110Vac
1.0 A @ 240Vac
Nominal frequency (Hz) 50-60
Frequency variation range (Hz) 47-63
Input voltage range (Vrms) 90-270
Inrush  current The maximum inrush current will be less than 50A and 100A when the adapter 
is connected to 115Vac and 230Vac respectively.
Efficiency  It should provide an efficiency of 80% minimum, when measured at maximum 
load under 115Vac.
Output Ratings (CV mode)
DC output voltage  19V
Noise + Ripple  300mVp-pmax (20 MHz bandwidth)
Load 0(min) 3.16A(max)
Output Ratings (CC mode)
DC output voltage 19V +/-1.0V for CV mode
Constant current mode 3.6 +/- 0.3A
Dynamic Output Characteristics
Turn-on delay time 3 sec (@ 115Vac)
Hold up time 5ms (@115Vac, Full load)
Over Voltage Protection (OVP) 24V
Short circuit protection 3.9A max can be protected and output can be shorted without damage
Electrostatic discharge (ESD) 15KV (at air discharge)
8KV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 3000Vac
Leakage current  0.25 mA max. (@ 254Vac, 60Hz)
Regulatory Requirements Safety Requirements:
1.The subject product rated 100-120V 60Hz must be listed under UL 1950 and 
certified with SCA Standard C22.2 No.950.
2.The subject product rated 200-240V 50Hz must comply with low voltage 
directive 73/23EEC.
EMI Requirements:
1.The subject product rated 100-120V 60Hz must meet the EMI requirements 
of FCC part 15, Subpart B for Class B Digital Device and get FCC Certification 
before marketing into USA and Canada.
2.The subject product rated 200-240V 50Hz must meet the EMC Directive 89/
336/EEC.
3.The subject product rated 100-120V must meet the VCCI-2 EMI 
requirements. 
						

							Chapter 128
 
Power Management 
Power Saving ModePhenomenon
Standby Mode
Enter Standby Mode when
1.Standby/Hibernation hot-key is pressed 
and system is not ready to enter Hibernation 
mode.
2.System standby/ Hibernation timer expires 
and system is not ready to enter Hibernation 
mode.

The buzzer beeps
The Sleep indicator lights up
Hibernation Mode
Enter Hibernation Mode (suspend to HDD) 
when
1.Hibernation hot-key is pressed and 
system is ready to enter Hibernation mode
2.System Hibernation timer expires and 
system is ready to enter Hibernation mode.

All power shuts off
Display Standby Mode
Keyboard, built-in touchpad, and an external 
PS/2 pointing device are idle for a specified 
period.

The display shuts off
Hard Disk Standby Mode
Hard disk is idle within a specified period of 
time.

Hard disk drive is in standby mode.
(spindle turned-off)
Environmental Requirements
ItemSpecification
Temperature
Operating
+5~+35 
°C
Non-operating
-20~+60 
°C
Humidity
Operating 20% to 85% RH, non-condensing
Non-operating 20% to 85% RH, non-condensing (Unpacked)
Non-operating 20% to 90% RH, non-condensing (Storage package)
Vibration
Operating (unpacked) 5~25.6Hz: 0.38mm (peak to peak)
25.6~250Hz: 0.5G
Non-operating (unpacked) 5~27.1Hz: 0.6G
27.1~50Hz: 0.04mm (peak to peak)
50~500Hz: 2.0G
Non-operating (packed) 5~62.6Hz: 0.51mm (peak to peak)
62.6~500Hz: 4.0G
Mechanical Specification
ItemSpecification
Dimensions 326(W) x 267.5(D) x 35.0~37.3(H)mm 
Weight 6.8 Ibs with14.1” TFT LCD and CD-ROM/ 6.9 Ibs with 15”LCD and CD-ROM 
						

							29TravelMate 230/ 280
I/O Ports One type III PCMCIA (PC Card) port, one RJ-11 port, one RJ-45 port, one DC-in 
port, one ECP parallel port, four USB ports (two optional), two IEEE 1394 ports 
(optional)one line-in jack, one line-out jack, one speaker/headphone-out jack, one 
VGA port /I
2 C compatible (optional).
Drive Bays One
Material Plastic
Indicators Power-on, Standby, Battery Status, Media Access, CapsLock and NumLock
Switch Power
Memory Address Map
Memory AddressSizeFunction
00000000-0009FFFF 640 KB Base memory
80600000-80600FFF
80620000-8063FFFF
81000000-81FFFFF
000A0000-000CFFFF4 KB Intel 845GL
128 KB
3 MB
192 KB
08000000-08000FFF
08001000-08001FFF4 KB O2 Micro OZ6912T Cardbus Controller
4 KB
82400000-82400FFF 4 KB USB
82200000-82200FFF 4 KB Audio
I/O Address Map
I/O AddressFunction
00000000-0000000F Direct Memory Access controller
00000000-00000CF7 PCI bus
00000010-0000001F Motherboard resources
00000020-00000021 Programmable interrupt controller
00000024-00000025 Motherboard resources
00000028-00000029 Motherboard resources
0000002C-0000002D Motherboard resources
0000002E-0000002F Motherboard resources
00000030-00000031 Motherboard resources
00000034-00000035 Motherboard resources
00000038-00000039 Motherboard resources
0000003C-0000003D Motherboard resources
00000040-00000043 System Timer
00000050-00000053 Motherboard resources
00000060-00000060 Standard 101/102-key or Microsoft Natural PS/2 keyboard
00000061-00000061 System Speaker
00000062-00000062 Microsoft ACPI-Compliant Embedded Controller
00000064-00000064 Standard 101/102-key or Microsoft Natural PS/2 keyboard
00000066-00000066 Microsoft ACPI-Compliant Embedded Controller
00000070-00000071 System CMOS/realtime clock
00000072-00000077 Motherboard resources
00000080-00000080 Motherboard resources
Mechanical Specification
ItemSpecification 
						

							Chapter 130
00000081-0000008F Direct memory access controller
00000090-0000009F Motherboard resources
000000A0-000000A1 Programmable interrupt controller
000000A4-000000A5 Motherboard resources
000000A8-000000A9 Motherboard resources
000000AC-000000AD Motherboard resources
000000B0-000000B5 Motherboard resources
000000B8-000000B9 Motherboard resources
000000BC-000000BD Motherboard resources
000000C0-000000DF Direct memory access controller
000000F0-000000FE Numeric data processor
00000170-00000177 Secondary IDE channel
000001C0-000001CF Motherboard resources
000001F0-000001F7 Primary IDE channel
00000274-00000277 ISAPNP Read Data Report
00000279-00000279 ISAPNP Read Data Report
00000376-00000376 Secondary IDE channel
00000378-0000037F Printer (LPT1)
000003B0-000003BB Intel (R) 82845G Graphic Controller
000003C0-000003DF Intel (R) 82845G Graphic Controller
000003F0-000003F5 Standard floppy disk controller
000003F6-000003F6 Primary IDE channel
000003F7-000003F7 Standard floppy disk controller
000003F8-000003FF Motherboard resources
000004D0-000004D1 Motherboard resources
00000600-0000060F Motherboard resources
00000A79-00000A79 ISAPNP Read Data Report
00000D00-0000FFFF PCI bus
00001000-0000107F Motherboard resources
00001180-000011BF Motherboard resources
00001800-0000181F Intel (R) 82801DB/DBM USB Universal Host Controller-24C2
00001820-0000183F Intel (R) 82801DB/DBM USB Universal Host Controller-24C4
00001840-0000185F Intel (R) 82801DB/DBM USB Universal Host Controller-24C7
00001860-0000186F Intel (R) 82801DB Ultra ATA Storage Controller-24CB
00001880-0000189F Intel (R) 82801DB/DBM SMBus Controller-24C3
000018C0-000018FF Crystal WDM AC’97 Driver for ICH4
00001C00-00001CFF Crystal WDM AC’97 Driver for ICH4
00002000-0000207F Agere Systems AC’97 Modem
00002400-000024FF Agere Systems AC’97 Modem
00003000-000030FF Realtek RTL8139/810x Family Fast Ethernet NIC
0000FD00-0000FDFF O2Micro OZ6912 CardBus Controller
0000FE00-0000FE00 Motherboard Resources
0000FF00-0000FFFF O2Micro OZ6912 CardBus Controller
I/O Address Map
I/O AddressFunction 
						

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NOTE: IRQ settings may be changed by OS IRQ Assignment Map
Interrupt ChannelFunction
NMI System errors
IRQ0 System timer
IRQ1 Keyboard
IRQ6 Floppy
IRQ8 Real time clock
IRQ9 Microsoft ACPI-Compliant System
IRQ11 Intel (R) 82801DB/DBM SMBus Controller-24C2
IRQ12 Synaptics PS2 pointing device
IRQ13 Numeric data processor
IRQ14 1st IDE device  
IRQ15 2nd IDE device 
IRQ16 Intel (R) 82801DB/DBM USB Universal Host Controller-24C2
IRQ16 Intel (R) 845G Graphics Controller
IRQ17 Agere Systems AC’97 Modem
IRQ17 Crystal WDM AC’97 Driver for ICH4
IRQ17 O2Micro OZ6912 CardBus Controller
IRQ18 Intel (R) 82801DB/DBM USB Universal Host Controller-24C7
IRQ19 Intel (R) 82801DB/DBM USB Universal Host Controller-24C4
IRQ19 Realtek RTL8139/810x Family Fast Ethernet NIC
IRQ21 OHCI Compliant IEEE 1394 Host Controller
IRQ23 Intel (R) 82801DB/DBM USB 2.0 Enhanced Host Controller-24CD
DMA Channel Assignment
DMA ChannelFunction
DRQ0 Not used
DRQ1 Not used
DRQ2 Floppy
DRQ3 Not used
DRQ4 DMA controller
DRQ5 Not used
DRQ6 Not used
DRQ7 Not used 
						

							Chapter 132