Acer Travelmate 2500 Service Guide

							Chapter 123
Rotation speed 5100 rpm for QSI
5400 rpm for Mitsumi 24X CAV mode
Data Buffer Capacity 128 KB (built-in)
Interface Compliant to ATA/ATAPI-6
Applicable disc format QSI:
CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2, Form-1 and Mode-2 Form-2, CD-i 
Ready, Video-CD (MPEG-1), Karaoke CD, Photo-CD, Enhanced CD, CD Plus, CD 
Extra, i-trax CD, CD-Text, CD-R and CD-RW
Mitsumi:
CD-DA, CD-ROM (Mode 1 and Mode2) CD-ROM XA (Mode 2 Form 1 and Form2), 
CD-I (Mode2 Form 1 and Form 2), CD-I Bridge (Photo CD, CD EXTRA), Enhanced 
CD, CD-RW, CD-R, CD-TEXT
Loading mechanism Drawer with soft eject and emergency eject hole
Power Requirement
Input Voltage +5V[DC]+/-5%
DVD-ROM Interface
ItemSpecification
Vendor & model name MKE SR-8177
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Average Sustained:
CAV mode 
775~1800 blocks/sec 
(10.3X to 24X)
1550~3600kBytes/sec (Mode 1)  
1768~4106 kBytes/sec (Mode 2)DVD-5:
Normal Speed (1X) 11.08 Mbits/sec
CAV mode 36.67~88.64 Mbits/sec
DVD-9/DVD-R:
Normal Speed (1X) 11.08 Mbits/sec
CAV mode 36.67~88.64 Mbits/sec
CD-ROM Interface
ItemsSpecification 
						

							24Chapter 1
Average Full Access time (typ.) Random
CAV mode 110 msec typical 150 
msec average max
Full Stroke
CAV mode 200 msec typical 260 
msec average maxDVD-5:
Random
  120 msec typical
  160 msec average max
Full Stroke
  270 msec typical
  350 msec average max
DVD-9:
Random
  150 msec typical
  200 msec average max
Full Stroke
  340 msec typical
  450 msec average max
DVD-RAM (2.6G)
Random
   200 msec typical
   300 msec average max
Full Stroke
   300 msec typical
   600 msec average max
DVD-RAM (4.7G)
Random
   180 msec typical
   300 msec average max
Full Stroke
   320 msec typical
   700 msec average max
Data Buffer Capacity 512 kBytes
Interface IDE
Applicable disc format DVD: DVD-5, DVD-9, DVD-10, DVD-R (3.95G), DVD-RAM (2.6G), DVD-
RAM (4.7G)
CD: CD-Audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 
1 and form 2), CD-I (mode 2, form 1 and form 2), CD-I Ready, CD-I Bridge, 
CD-WO, CD-RW, Photo CD, Video CD, Enhanced Music CD, CD-TEXT
Loading mechanism Soft eject (with emergency eject hole)
Power Requirement
Input Voltage +5V[DC]+/-5%
Combo Drive Interface
ItemSpecification
Vendor & model name KME UJDA750
Performance Specification
DVD-ROM Interface
ItemSpecification 
						

							Chapter 125
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), DVD-VIDEO, DVD-RAM 
(2.6GB, 4.7GB)
Slope 15 degree (Any direction)
Dimensions, Weight 128X129X12.7mm (WXDXH)
                         (except protrusion)
200g+- 10g
Eject Soft Eject (with emergency eject hole)
DVD Dual Interface
ItemSpecification
Vendor & model name Liteon DVD-Dual SDW-431S
Disc type for read/write application
Applicable Formats CD-DA, CD-TEXT, CD ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and 
Form-2, CD-I Ready, Video-CD (MPEG-1), Karaoke-CD, Photo-CD, 
Enhance CD, CD extra, I-Trax CD and UDF DVD-ROM, DVD-Video, DVD-
Audio,
DVD-R single/multi border(s)
DVD+R single/multi session(s)
DVD-RW
DVD+RW
Applicable Media Type CD-ROM, CD-R and CD-RW
DVD-ROM (4.7G/8.54G) single layer on single/double side (read only), 
DVD-ROM dual layer (PTP/OTP) on single/double side (read only)
DVD-R (3.9G, 4.7G for General and Authoring), 
DVD-RW, DVD+RW (4.7G)
DVD+R 
Combo Drive Interface
ItemSpecification 
						

							26Chapter 1
Disc Diameter 12cm and 8cm
Capacity 2048 bytes/sector (DVD)
2048 bytes/block (CD Mode-1 and Mode-2 Form-1)
2336 bytes/block (Mode-2)
2328 bytes/block (Mode-2 Form-2)
Operation environment for “write/rewrite” application
Host Machine IBM compatible PC (Pentium 166 MHz or above)
OS MS-Windows 90/ME/2000/XP/NT 4.0
Memory Min. 128MB required
Hard Disk Empty Storage Capacity:100 MB or more
Average access time: 20ms or less
Disc Diameter 12cm and 8cm
Recommended MediaCD-R:
AMT, CMC, Csita, Delphi, EverMedia, Imation, LeadData(Silver-Sil), 
Maxell, MCC (Bagdad), Mirage, Mitsui, MoserBaer(India), MPO, NanYa, 
Plasmon, Prodisc, RAMedia, Ricoh, Ritek(JS, S,  Richodye), SAST (ultra 
green), SKC(Korea), TDK, TY (DX dye)
Low Speed CD-RW:
CMC, Daxon, Fornet, Gigastorage, Imation, Infodisc, LeadData, MCC, 
Nanya, Princo, Prodisc, Ricoh, Ritek
High Speed CD-RW:
AMT, CMC, Infodisc, Nanya, Postech, Prodisc, Ritek, Ricoh, MCC, 
SKC(Korea)
Ultra Speed CD-RW:
Daxon, Imation, Infodisc, MCC, Prodisc, Ritek
DVD+R:
BEALL, CMC, Daxon, Fuji, HP, Maxell, MCC, Memorex, OPTODISC, 
PRODISC, Ricoh, RICOH, Ritek, SONY, TDK, TYUDE
DVD+RW:
CMMC, Daxon, Imation, MCC, Philips, Ricoh, Ritek, Sony
DVD-R:
BeAll, CMMC, DAXON, DVSN Fornex, GSC, Imation, LeadData, Maxell, 
Mitsubishi, Nanya, Pioneer, Princo, Prodisc, Ritec, Ritek, SKC, Sony, 
That’s
DVD-RW:
CMC, Mitsubishi, Princo Ritek
Mechanism
Pick-up NA:                    CD: 0.51
                           DVD: 0.65
Focusing:          Astigmatism
Tracking:           CD: DPP
                           DVD-ROM: DPD
                           DVD+R/RW: DPP
Wave length:     CD: 785+/- 5 nm
                           DVD: 650+/- 15 nm
Output power:
Read CD:     1.5 mw max@objective lens
           DVD:  1.0 mw max
Write CD:      65 mw max2@objective lens
           DVD:  20 mw max
Traverse mechanism DC Stepping motor driven
Spindle motor DC burshless motor
DVD Dual Interface
ItemSpecification 
						

							Chapter 127
  
Loading mechanism Manual load/DC brushless mortor system
Audio Interface
ItemSpecification
Audio Controller RTL ALC655
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
Supports PnP DMA channel DMA channel 0
DMA channel 1
Supports PnP IRQ IRQ10, IRQ11
Video Interface
ItemSpecification
Vendor & Model Name Built-in ATI RC300M(ATI Mobility Radeon 9000IGP)
Chip voltage Core / 2.5V, 1.5V, 
Supports ZV (Zoomed Video) port NO
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 64MB
Parallel Port
ItemSpecification
Parallel port controller NS PC87392
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
DVD Dual Interface
ItemSpecification 
						

							28Chapter 1
 
  
 
Optional parallel port I/O address 
(in BIOS Setup)378, 278, 3BC
Optional parallel port IRQ 
(in BIOS Setup)IRQ7, IRQ5
USB Port
ItemSpecification
USB Compliancy Level 1.1/2.0 support
OHCI USB 2.0
Number of USB port 4
5V/500 mA per slot
Location Rear side
Other Remarks 3 independent OHCI USB1.1 Host Controller and 1 EHCI USN2.0 
Host Controller. 
PCMCIA Port
ItemSpecification
PCMCIA controller TZ 1520
Supports card type Type II, Tpye III
Number of slots Two type II, one type III
Access location Left side
Supports ZV (Zoomed Video) port Yes
Supports 32 bit CardBus  Yes (IRQ17)
Keyboard
ItemSpecification
Keyboard controller Mitsubishi LPC keyboard controller 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  4000mAH
Cell voltage  3.8V / 1.2V
Number of battery cell 8
Package configuration 4S2P
Package voltage  41.8V / 9.6V
Parallel Port
ItemSpecification 
						

							Chapter 129
LCD
Item
Vendor & model name AU:
B150XG01
B150PG01CMO:
N150X3-L05LG:
LP150X08-A5
Screen Diagonal (mm) 381 15.0 inches, 381 15.0 inches, 381
Active Area (mm) 304.1x228.1
304.5x228.375304.1x228.1 304.1x228.1
Display resolution (pixels) 1024x768 XGA
1400x1050 SXGA+1024x768 XGA 1024x768 XGA
Pixel Pitch 0.297x0.297 0.297x0.297 0.297x0.297
Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe R.G.B. Vertical Stripe
Display Mode Normally White Normally White Transmissive mode, 
Normally White
Typical White Luminance (cd/m
2)
also called Brightness180 (5 point average)
150 (5 point average)170 150 (5 point average)
Luminance Uniformity N/A N/A N/A
Contrast Ratio 300/250 250 250
Response Time (Optical Rise Time/Fall 
Time)24/11
15/356/17 10/20
Nominal Input Voltage VDD +3.3V Typ. +3.3V Typ. +3.3V Typ.
Typical Power Consumption (watt) 5.6/5.7 4.4 4.66
Weight 550 505 540
Physical Size(mm) 317.3x242.0x6.0 317.3x242.0x5.7 317.3x241.5x5.7
Electrical Interface 1 channel LVDS
2 channel LVDSN/A N/A
Support Color 262K colors (RGB 6-
bit data driver)262,144 colors 262,144 colors
Viewing Angle (degree)
Horizontal: Right/Left
Vertial: Upper/Lower40/40
10/3045/45
15/3545/45
15/35
Temperature Range( C)
Operating
Storage (shipping)0 to +50
-20 to +600 to +50
-20 to +60N/A
+5 to +35
LCD
Item
Vendor & model name Hitachi
TX38D81VC1CABQDI 
QD15XL06-01 Samsung:
LTN150P4-L03
Screen Diagonal (mm or inch) 15.0 inches, 381 15.0 inches 15.0 inches
Active Area (mm) 304.1x228.1 304.1x228.1 304.5x228.375
Display resolution (pixels)1024x768 XGA 1024x768 XGA 1400x1050 SXGA+
Pixel Pitch 0.297x0.297 0.099x0.297 0.2175x0.2175
Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe R.G.B. Vertical Stripe
Display Mode Transmissive & 
normally WhiteNormally White Normally White
Typical White Luminance (cd/m
2)
also called Brightness170 160 150
° 
						

							30Chapter 1
Luminance Uniformity 40 N/A N/A
Contrast Ratio 200 300 200
Response Time (Optical Rise Time/Fall 
Time)30/30 8/17 10/30
Nominal Input Voltage VDD +3.3V +3.3V +3.3V
Typical Power Consumption (watt) N/A 3.96 4.0
Weight 580 570 600
Physical Size(mm) 317.3x242.1x6.0 317.3x242.0x5.9 317.3x242.0x6.5
Electrical Interface 1 channel LVDS 1 channel LVDS 2 channel LVDS
Support Color 262K 262,144 262,144
Viewing Angle (degree)
Horizontal: Right/Left
Vertial: Upper/Lower40/40
20/4045/45
15/3545/45
20/40
Temperature Range( C)
Operating
Storage (shipping)0 to +40
-20 to +600 to +50
-25 to +600 to +50
-25 to +60
LCD
Item
Vendor & model name Hannstar
HSD150PX14
HSD150PK14AU
B141XN04CMO N141XB-
L01(SPWG-B type)
Hydis HT14X19-100 
(SPWG-B type)
Screen Diagonal (mm) 15.0 inches 14.1 inches 14.1 inches
Active Area (mm) 304.1x228.1
304.5x228.375285.7x214.3 285.7x214.3
Display resolution (pixels) 1024x768 XGA
1400x1050 SXGA+1024x768 XGA 1024x768 XGA
Pixel Pitch 0.297x0.297
0.2175x0.21750.279x0.279 0.279x0.279
Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe R.G.B. Vertical Stripe
Display Mode Normally White Normally White Normally White
Typical White Luminance (cd/m
2)150
180150 160/150
Luminance Uniformity 70/65 N/A N/A
Contrast Ratio 250 250 450/200
Response Time (Optical Rise Time/Fall 
Time)10/25
7/1520/30 6/17
23/30
Nominal Input Voltage VDD 3.3V 3.3V 3.3V
Typical Power Consumption (watt) N/A 3.96 4.03
N/A
Weight 600/590 445 420/485
Physical Size(mm) 317.3x242.0x6.5
317.3x242.0x6.3298.5x226.7x5.2 299x228x5.2
299x228x5.7
Electrical Interface 1 channel LVDS
2 channel LVDS1 channel LVDS 1 channel LVDS
Support Color 262,144 262,144 262,144
LCD
Item
° 
						

							Chapter 131
 
Viewing Angle (degree)
Horizontal: Right/Left
Vertial: Upper/Lower40/40
20/4040/40
10/3045/45
15/35
Temperature Range( C)
Operating
Storage (shipping)0 to +50
-20 to +600 to +50
-20 to +600 to +50
-20 to +60
AC Adapter
ItemSpecification
Vendor & model name Liton, 135W power supply
Input Voltage
Low Range 90(min.)/137(max.)/100-127(nominal)
High Range 180(min.)/265(max.)200-240(nominal)
Input current 2.2A(max)
Nominal frequency (Hz) 50-60
Frequency variation range (Hz) 47-63
Efficiency  It should provide an efficiency of 85% minimum, when measured at maximum 
load under 115Vac.
Output Requirements
DC output voltage 19V
Noise + Ripple  380mV as output voltage is 19V
Peak Load 18.5V-19.71V
Dynamic Output Characteristics
Turn-on delay time 5 sec (@ 115Vac)
Hold up time 5ms (@115Vac, Full load)
Over Voltage Protection (OVP) 29V
Short circuit protection 9.5A @19V output voltage
Electrostatic discharge (ESD) 15KV (at air discharge)
8KV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 2150VDC for 1 sec.
Ground leakage current  less than 250uA
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.
TThe buzzer beepsTThe Sleep indicator lights up
LCD
Item
° 
						

							32Chapter 1
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.TAll power shuts off
Display Standby Mode
Keyboard, built-in touchpad, and an external 
PS/2 pointing device are idle for a specified 
period.
TThe display shuts off
Hard Disk Standby Mode
Hard disk is idle within a specified period of 
time.
THard disk drive is in standby mode.
(spindle turned-off)
Environmental Requirements
ItemSpecification
Temperature
Operating
+5~+35 
°C
Non-operating
-10~+60 
°C
Package storage
-20~+60 
°C
Humidity
Operating 20% to 85% RH, non-condensing
Non-operating 20% to 80% 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 290(D) x 43.6(max. H)mm
Weight 7.32 Ibs (3.3kg) for 14.1” TFT LCD model with battery/7.50Ibs (3.4kg) for 15”LCD 
model with battery
I/O Ports One Type III or two type II PCMCIA (PC Card) port, one RJ-11 port, one RJ-45 
port, one DC-in port, one ECP parallel port, four USB ports, one microphone-in/
line-in jack, one line-out ack, one FIR port.
Drive Bays One
Material Plastic
Indicators Power-on, Standby, Battery Status, Media Access, CapsLock and NumLock
Switch Power
Power Management 
Power Saving ModePhenomenon