Acer Aspire 9520 Service Guide

Chapter 145
  
 
FeatureTSupport Windows keys and application 
keys
TStandard pitch, 2.5 mm travel length
THotkey controls
Tembedded numberic keypad
TMulti-Langue support
TSpill-proof
Four easy-launch buttons
TInternet browser 
Temail with LED
TAcer Empowering 
Tone user-programmable button
Battery 
ItemSpecification
Vendor & model name Sanyo/Simplo
Battery Type Li-ion
Number of battery cell 8-cell 4800mAh
Package configuration
Pin 1
Pin 2 BATT+: Battery+, Battery Positive Terminal
Pin 3 ID : Identify...

46Chapter 1
AC Adapter
Typical White 
Luminance (cd/m2)
also called Brightness200(Typical) 200(Center Typical) 400(Typical) 200(Typical)
Contrast Ratio  300 :1(Typical) 300:1(Min) 550(Typical) 350(Min)
Response Time 
(Optical Rise 
Time+Fall Time)msec16(Typical) 25(Typical) 16(Typical)
26(Max)25(Typical)
Normal Input Voltage 
of Power Supply+3.3V(Typical) +3.3V(Typical)+3.3V(Typical) +3.3V(Typical)
Power Consumption 
(watt)8(Max) 4.7(Typical) 4.320(Max) 4.78(Typ)
Weight 700g(Max) 750g 950(Typical)...

Chapter 147
Over Voltage Protection 
(OVP)29V
Over Current 
Protection(OCP)Output current limit is 5A(Max mode)
Short circuit protection Output can be shorted without damage, and auto recovery
Electrostatic discharge 
(ESD)15kV (at air discharge)
8kV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 2150VDC for 1 sec
Leakage current  less than 100uA
Regulatory Requirements 1. CISPR 22 Class B
2. VCCI Class II
Hard Disk Drive Interface
ItemSpecification
Vendor & 
Model NameSegate...

48Chapter 1
ItemSpecification
Vendor & 
Model NameSegate ST960812A Segate ST980829A Segate ST9100825A
Capacity 
(MB)60000 80000 100000
Bytes per 
sector512 512 512
Data heads 2 3 4
Drive Format
Disks 1 2 2
Spind le 
speed 
(RPM)4200 RPM 4200 RPM 4200 RPM
Performance Specifications
Buffer size  8184KB 8184KB 8184KB
Interface Parallel ATA Parallel ATA Parallel ATA
Max. media 
transfer rate 
(disk-buffer, 
Mbytes/s)56.25 56.25 56.25
Data transfer 
rate 
(host~buffer, 
Mbytes/s)100 MB/Sec.(Ultra DMA 
Mode...

Chapter 149
Applicable disc format DVD(read):DVD 5, 9, 10, 18, DVD-
ROM, DVD-Video, DVD-R 3.95G, 
DVD-R 4.7G, DVD-RW, DVD+R, 
DVD+RW, Multi-Border DVD-R/DVD-
RW, Multi-Session DVD+R, 
DVD+RW, DVD-RAM
CD(write): CD-DA, CD ROM Mode-1, 
CD-ROM/XA Mode-2 Form-1 and 
Mode-2 Form-2, CD-I , Video-
CD(MPEG-1), CD-Text
CD(write): CD-DA, CD-ROM Mode-1, 
CD-ROM/XA Mode-2 Form-1 and 
Mode-2, CD-i, Video-CD, CD-TextCD: CD-DA, CD-ROM Mode-1,  
CD-ROM XA Mode-2 Form-1 
and Form-2, CD-I Ready, 
Viceo-CD(MPEG-1),...

50Chapter 1
Applicable disc 
formatCDExtra(CD PLUS), 
Video CD, CD text data, 
CD-R discs, CD-RW 
discs, DVD-ROM, DVD-R 
Ver2.0, DVD-RDL Ver3.0, 
DVD-RW Ver1.0&1.1&1.2, 
DVD+R Ver1.0&1.11&1.2, 
DVD+R DLVer1.0, 
DVD+RW Ver1.1&1.2, 
DVD+RW high speed 
Ver1.0, DVD-RAM 
Ver2.0&2.1&2.2CD-DA, CD ROM Mode-
1, CD-ROM/XA Mode-2 
Form-1 and Mode-2 
Form-2, CD-I , Video-
CD(MPEG-1), CD-Text, 
PhotoCD, Enhance CD, 
CD extra, I-Trax CD and 
UDF
DVD-ROM, DVD-Video, 
DVD-Audio, DVD-R 
single/multi border, 
DVD+R...

Chapter 151
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 Environmental Requirements
ItemSpecification 

Chapter 252
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...

53Chapter 2
Information
ParameterDescription
CPU Type This item will show the CPU information of the system.
CPU Speed This item will show the CPU clock speed.
IDE1 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
IDE1 Serial Number This item will show the Serial number of HDD installed on Primary IDE 
master. If...

Chapter 254
Main
This menu provides you the information of the system.
ParameterDescription
System Time / System 
Date The hours are displayed with 24 hours format. The values set in these two fields 
take effect immediately.
System Memory This field reports the memory size of system base memory.  The size is fixed to 
640KB. 
Extended Memory This field reports the memory size of the extended memory in the system. 
Extended Memory size = Total memory size - 1 MB 
Video Memory VGA Memory size = 128MB...