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...

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...

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....

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,...

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...

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...

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...

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...

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...

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...