Acer Travelmate 4020 Service Guide

Chapter 125
  
ItemSpecification
Audio Controller AC’ 97 Codec
Audio onboard or optional Built-in
Mono or Stereo Stereo
Resolution 20 bit stereo Digital to analog converter
18 bit stereo Analog to Ditial converter
Compatibility Microsoft PC99/2100, AC97 2.3 & WHQL/WLP2.0
Mixed sound source CD
Sampling rate 48 KHz
Internal microphone Yes
Internal speaker / Quantity Yes / 2
PCMCIA Port
ItemSpecification
PCMCIA controller PCI7411
Supports card type Type II 
Number of slots One type-II
Access location Right...

26Chapter 1
 
  Battery 
ItemSpecification
Vendor & model name Panasonic/Sanyo
Battery Type Li-ion
Pack capacity  65Wh 
Cell voltage  3.7V/cell/2000mAh High discharge rate
Number of battery cell 8-cell(65W) 
4-cell(32W) 
Package configuration
Pin 1
Pin 2 BATT+: Battery+, Battery Positive Terminal
Pin 3 ID : Identify Pin (Note 1)
Pin 4 B/I : Battery-In Pin
Pin 5 TS : Connect to Thermister
Pin 6 SMD : SMBus data interface I/O pin
Pin 7 SMC : SMBus clock interface I/O pin
Pin 8
Pin 9GND : Battery Negative...

Chapter 127
LCD:15”XGA
ItemSpecifications
Vendor & 
model nameAU
B150XG02 
V. 2LG
LP150X08-A3Samsung
LTN150XB-
L03-C00Hitachi
TX38D81VC1
CAB Rev.CCMO
N150X3-L07
Mechanical Specification
LCD display 
area 
(diagonal, 
inch)15” 15” 15” 15” 15”
Display 
technologyTFT TFT TFT TFT TFT
Resolution XGA 
(1024*768)XGA 
(1024*768)XGA 
(1024*768)XGA 
(1024*768)XGA 
(1024*768)
Supports 
colors16.7 million 16.7 million 16.7 million 16.7 million 16.7 million
Optical Specification
Brightness 
controlkeyboard...

28Chapter 1
Frequency variation range 
(Hz)47 - 63
Nominal voltages (Vrms) 90 - 264
Inrush current The maximum inrush current will be less than 50A and 100A when 
the adapter is connected to 100Vac(60Hz) and 240Vac(50Hz) 
respectively.
Efficiency  High efficiency 85% minimum, at 100~240Vac AC input, full load, 
warm-up condition.
Output Ratings (CV mode)
DC output voltage  Offers constant voltage 19.0V output source with 150W max output 
power capacity.
Noise + Ripple  300mvp-pmax (20MHz bandwidth) for...

Chapter 129
Dimensions and Weight
ItemDetails
Deminsions 360(W) x 273(D) x 27~32 (H)mm
Weight 6.6lbs (3kg)
Environmental Requirements
ItemSpecification
Temperature
Operating +5 ~  +35°C
Non-operating -20 ~ +65°C  (storage package)
Humidity
Operating 20% ~ 80% without condensation
Altitude Operating sea level 0 to 10,000ft
Storage sea level 0 to 40,000ft
Model Name MK4025GAS 
,KA100A, 40GBPluto MK6025GAS 
60GBPluto MK8025GAS, 
8MB, 80GB
Data Storage Physical
Per drive, formatted 40.007GB 60.0116GB...

30Chapter 1
TOSHIBA
Model Name MK4025GAS ,KA100A, 
40GBPluto MK6025GAS 
60GBPluto MK8025GAS, 
8MB, 80GB
Data Storage Physical
Per drive, formatted 40.007GB 60.0116GB 80.012GB
Data Heads 2 4 4
Number of Disks
122
Logical Configuration
Heads 16 16 16
Cylinders
16,383 16,383 16,383
User Sectors/Track at 
zone 063 63 63
Logical Blocks (LBA) 78,140,160 117,210,240 156,301,488
Data Transfer Rate
Max transfer rate to host 100MB/sec 100MB/sec 100MB/sec
Seek Time 

Chapter 131
Track-to-track 2ms 2ms 2ms
Average 12ms 12ms 12ms
Maximum 22ms 22ms 22ms
TOSHIBA
Nominal Power Requirements
Logic
+5V( %) +5V( %) +5V( %)
Start 4.7watts 5.0watts 4.7watts
Seeking 2.6watts 2.9watts 2.6watts
Reading/Writing 2.3watts 2.5watts 2.3watts
Idle 0.9watts 1.05watts 0.9watts
Standby 0.25watts 0.25watts 0.25watts
Sleep 0.1watts 0.1watts 0.1watts
Other
Rotational Speed 4,200rpm 5,400rpm 4,200rpm
Average Latency 7.14ms 5.56ms 7.14ms
Interface ATA-2/3/4/5/6 ATA-5 ATA-2/3/4/5/6
Buffer 8MB...

32Chapter 1
Preventive MaintenanceNone None None
MTTF (Power on hours)300,000 300,000 300,000
Product Life 5 years or 20,000 power 
ON hours5 years or 20,000 power 
ON hours5 years or 20,000 power 
ON hours 

Chapter 233
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, 
if you encounter configuration problems, you may need to run Setup.  Please also refer to Chapter 4
 Troubleshooting when problem arises.
To activate the BIOS Utility, press 
m during POST (when “Press  to enter Setup” message is prompted
 on the...

34Chapter 2
Information
NOTE: The information on this page varies to models
ParameterDescription
CPU Type
CPU Speed
HDD Model Name This item will show the Model name of HDD installed on Primary IDE 
master. The hard disk model name is automatically detected by the 
system. If there is no hard disk present or unknown type, “None” 
should be shown on this field
HDD Serial Number This item will show the Serial number of HDD installed on Primary IDE 
master. If no Hard disk or other devices are installed on...