Acer Extensa 2500 Service Guide

							22Chapter 1
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
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
CD-ROM Interface
ItemsSpecification 
						

							Chapter 123
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
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
DVD-ROM Interface
ItemSpecification 
						

							24Chapter 1
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 
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
DVD Dual Interface
ItemSpecification 
						

							Chapter 125
  
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
Loading mechanism Manual load/DC brushless mortor system
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
Supports PnP DMA channel DMA channel 0
DMA channel 1
Supports PnP IRQ IRQ10, IRQ11
Video Interface
ItemSpecification
Vendor & Model Name Intel 845GME (Montara-GT)
Chip voltage Core / 2.5V, 1.5V, 
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)
DVD Dual Interface
ItemSpecification 
						

							26Chapter 1
 
  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 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
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 2.0
OHCI USB 2.0
Number of USB port 4
Location Rear side
Serial port function control Enable/Disable by BIOS Setup
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 
						

							Chapter 127
  
 
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- 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 4529 / 8S
Package voltage  41.8V / 9.6V
DC-DC/Charger Converter
ItemSpecification
Vendor & Model Name MAX IM1645/MAXIM1715/MAX1 999/MAXI 545
Input Voltage AC Adapter or Battery: 8V - 19VDC
DC-DC Converter Output
Output Rating +5V 3.3V
Current (w/load, A) 0~5A 0~4A
Charger Output Li-ION
Normal charge (charge while system 
is not operative)2.8A
Background charge (charge even 
system is still operative)Constant power mode (2.8A~0A)
Battery-low 2 level (V) 12.5V
Battery-low 3 level (V) 11.5V
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)
PCMCIA Port
ItemSpecification 
						

							28Chapter 1
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.
. 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
TX38D85VC1CAB15” AU B150PG01 
SXGA+
Physical Specifications
Display resolution(pixel) 1024(H) x 768(V) 1400(H) x1050(V) 1400(H) x1050(V)
Active area(mm) 285.7(H) x 214.3(V) 304.1(H) x 228.1(V) 304.5 (H) x228.375(V)
Screen Size(inch) 14.1 15.0 15.0
Pixel pitch(mm) 0.279(H)x 0.279(V) 0.297(H)x 0.297(V) 0.2175x 0.2175
Color configuration (Pixel Arrangement) R.G.B. Vertical stripe
Overall dimension(mm) 298.5(W)x226.7(H)x5.
2/5.5(D)317.3(w)x242.1(H)x6.
0(D)
Weight(g) 445+/-20 580 550
Surface treatment Hard coating (3H), 
anti-glare of the front 
polarizerNot show Not show
Power supply(input voltage) 3.6V(max) 3.3V(typ.) 3.6V(max) 3.3V
Response time:Rising time/Falling time 20(typ.)40(max)/
30(typ.)50(max)30(typ.)50(max)
30(typ.)50(max)15(typ.)
35(typ.)
Contrast ratio 250 200 250
Support colors 262K 262k 262K
Typical White Luminance 150 180 150
AC Adapter
ItemSpecification
Vendor & model name Liton
Input Requirements
Maximum input current (A, 
@90Vac, full load)1.5 A @ 110Vac
1.0 A @ 240Vac
Nominal frequency (Hz) 50-60 
						

							Chapter 129
 
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.
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
AC Adapter
ItemSpecification 
						

							30Chapter 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 322(W) x 294(D) x 39.4~39.9(H)mm 
Weight 7.2 Ibs for 14.1” TFT LCD model with battery/7.4 Ibs for 15”LCD model with battery
I/O Ports Two type II PCMCIA (PC Card) port, one RJ-11 port, one RJ-45 port, one DC-in 
port, one ECP paralle port, four USB ports, one microphone-in/line-in jack, one 
line-out (share with SP-DIF) jack, one VGA port, 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 
						

							Chapter 131