Acer Travelmate 4520 Service Guide

Appendix C121
 
 
 
Modem
ItemSpecification
Data modem data baud rate (bps) 56K
Supports modem protocol V.90/V.92 WWDAA
Modem connector type RJ-11
Modem connector location Right side
Bluetooth Interface
ItemSpecification
Chipset Foxconn Broadcom 2045 
Data throughput 723 bps (full speed data rate)
Protocol Bluetooth 1.1 (Upgradeable to Bluetooth 1.2 when SIG 
specification is ratified).
Interface USB 1.1
Connector type USB
Battery Pack
ItemSpecification
Type Lithium-ion (Li-ion)
Vendor Panasonic Sanyo...

122Appendix C
 Hard Disk Drive
SpecificationCapacity
80 GB120 GB160
Provider Seagate Toshiba Seagate
Model
Part number ST980811AS MK1237GSX  ST9160821AS
Formatted capacity  120 GB 
Number of disks 2
Number of data heads 4
Interface ATA7/Serial ATA 1.0a 
Seek time (average)  12ms 
Rotational speed  5,400 (±0.1%) rpm 
Data transfer rate
Internal 
Buffer to Host 335 to 613 Mb/s 
300 MB/s
Buffer 8 MB
Dimensions (mm)
Height
Width
Depth9.5 
69.85
100.0
Weight 102g (max) 
Allowable voltage  5V ±5% 
Temperature...

Appendix C123
 Optical Disc Drive
ItemSpecification
Provider HLDS Sony Pioneer
Model GSA-T20N AD-7560A DVR-K17RS
Drive typeInternal Slim DVD/CD 
writer
Data transfer rate Write: 
• CD-R: 24X
• CD-RW: 24X
•DVD-RW: 6X
• DVD-R/+R/+RW: 8X
Write
• DVD-RAM: 5x
InterfaceEnhanced IDE(ATAPI) 
compatible
Supported disc formats DVD-RAM, DVD-R/RW, 
DVD+R (SL, DL)/RW, 
CD-R/RW, DVD-ROM, 
DVD-RAM, DVD-R, 
DVD-RW, DVD+R (SL, 
DL), DVD+RW; CD-R, 
CD-RW, CD-ROM, CD-
ROM XA, CD-DA, CD-I, 
CD-Extra, CD-Text, 
Photo CD,...

124Appendix C
  LCD Inverter
ItemSpecification
Vendor & model name Darfon/V189-301GP
Brightness conditions N/A
Input voltage (V) 9~21
Input current (mA) 2.56 (max)
Output voltage (V, rms) 780V (2000V for kick off)
Output current (mA, rms) 6.5 (max)
Output voltage frequency (k Hz) 65K Hz (max)
System BIOS
ItemSpecification
BIOS vendor Phoenix
BIOS version v0.14
BIOS ROM Winbond W25X80 spiFlash Memory
BIOS ROM size 1M byte fLASH ROM SST
BIOS package 8-pin SOIC 208mil
Supported industry standards
TPCI 2.2...

Appendix C125
Power Management
ItemSpecification
Power management standard ACPI 1.0b/2.0/3.0
System power management states
TMechanical Off (G3) – All system devices are turned off 
completely.
TSoft Off (G2/S5)  – OS initiated shutdown. All devices 
in the system are turned off completely.
TWorking (G0/S0) – Individual devices such as the 
processor and hard disk may be power managed in 
this state.
TS3 Sleeping State 
TCPU set power down
TVGA suspend
TAudio power down
THard disk power down
TOptical...

126Appendix C
Acer TM 4520 SG.book  Page 126  Friday, June 22, 2007  5:43 PM 

Index127
A
AC adapter
part number 89, 96, 98, 105
Acer Bio-Protection fingerprint reader
location 5
Acer disc-to-disc recovery 17
Acer OrbiCam camera
location 5
Acer QuicCharge 3
audio
features 2
headphone jack 6
internal microphone 5
microphone-in jack 6
speaker grill 6
specifications 119
B
Basic Input/Output, see BIOS
 13
battery pack
charging indicator 10
location 9
lock 9
part number 96, 105
release latch 9
removing 31
troubleshooting 68
BIOS
BIOS flash 24
BIOS recovery 24
check version 16...

128Index
D2D Recovery 17
DC-in jack 8
location 8
disassembly procedures
external modules 29
guidelines 27
LCD module 57
main unit 41
preparatory steps 28
screw list 28
stages 27
tools 27
torque values 27
display
compatibility test 113
controller specifications 119
features 2
LCD panel 5
S-Video/TV-out port 8
VGA port 8
video memory 17
E
easy-launch keys
 11, 12
Acer Empowering 11
Bluetooth 10
browser 11
configuring 11, 25
mail 11
programmable 11
E-key
board, part number 89, 98
Ethernet port
controller...

Index129
location 6
Intermittent Problems 80
inverter board
part number 89, 98
removing 59
IR port
compatibility test 114
location 6
K
Kensington lock hatch
 7
Keyboard 119
keyboard
cable connector 84
cable, disconnecting 43
features 2
location 5
part number 92, 101
removing 42
troubleshooting 66
L
launch board
part number 89, 98
launch button
configuring 25
Launch Manager 25
LCD bezel
removing 58
LCD brackets
part number 94, 103
removing 62
LCD hinges
part number 94, 103
removing 60
LCD module...

130Index
part number 89, 98
removing 63
middle cover
part number 95, 104
removing 42
modem board
connector 85
part number 90, 99
removing 55
modem cable
part number 91, 100
modem port
location 8
O
ODD, see optical disc drive
 7
Online Support Information 82
operating system 4
optical disc drive
access indicator 7
bracket, part number 95, 104
bracket, removing 37
drive options 1
DVD module, part number 96, 105
eject button 7
emergency eject hole 7
location 7
module connector 85
removing 36
troubleshooting...