Acer Aspire 8942g Service Guide

							Chapter 11
System Specifications
Features
Below is a brief summary of the computer’s many features:
NOTE: Items marked with * denote only selected models.
Operating System
• Genuine Windows 7®
Platform
•Intel® Core™ i7 processor*
•Intel® Core™ i5 processor*
•Intel® Core™ i3 processor*
• Intel® HM55 Express Chipset
• ATI Mobility Radeon
™ HD 5650 or 5850
System Memory
• Dual-Channel SDRAM support
• Up to 4 GB of DDR3 1066 MHz memory, upgradeable to 8 GB using two soDIMM modules
Display
• 18.4” TFT LCD
• Resolution: 1920 x 1080 Full HD
• 16:9 aspect ratio
Graphics
• AMD Broadway-Pro or Madison-Pro
Storage subsystem
• 2.5 hard disk drive
• Optical drive options:
• Blu-ray Disc
™ Writer/DVD-Super Multi doublelayer drive*
• Blu-ray Disc™/DVD-Super Multi double-layer drive*
• DVD-Super Multi double-layer drive*
• Multi-in-1 card reader
Chapter 1 
						

							2Chapter 1
Audio
•Dolby®-optimized surround sound system with five built-in stereo speakers and one 
subwoofer
• True5.1-channel surround sound output
• High-definition audio support
• S/PDIF (Sony/Philips Digital Interface) support for digital speakers
• MS-Sound compatible
• Acer Purezone technology with two built-in stereo microphones
Dimensions and Weight
• 440 (W) x 295 (D) x 31/43.8 (H) mm (17.34 x 11.62 x 1.22/1.73 inches)
• 4.6 kg (10.1 lbs.) with 8-cell battery
Communication
• Acer Video Conference, featuring:
•
Integrated Acer Crystal Eye webcam*
•Acer PureZone technology*
•WLAN:
•
Intel® Centrino® Ultimate-N 6300 802.11a/g/n*
•Intel® Centrino® Advanced-N 6200 802.11a/g/n*
•Intel® Centrino® Wireless-N 1000 802.11b/g/n*
•Acer InviLink™ Nplify™ 802.11b/g/n*
•Acer InviLink™ 802.11b/g*
•WPAN: Bluetooth® 2.1+Enhanced Data Rate (EDR)*
• LAN: Gigabit Ethernet; Wake-on-LAN ready
Privacy control 
• Acer Bio-Protection fingerprint solution*
• BIOS user, supervisor, HDD passwords
• Kensington lock slot
Power subsystem
•ACPI 3.0
• 71 W 4800 mAh battery
• 3-pin 120 W AC adapter
• ENERGY STAR®*
Special keys and controls
• 103-/104-/107-key keyboard
• Touchpad pointing device 
						

							Chapter 13
I/O interface
• ExpressCard®/54 slot
• Acer Bio-Protection fingerprint reader
*
• Multi-in-1 card reader (SD/MMC/MS/MS PRO/xD)
• USB 2.0 port
• IEEE 1394 port
• HDMI
™ port with HDCP support
• DISPLAY port
• eSATA port
• External display (VGA) port
• Consumer infrared (CIR) port
•RF-in jack
*
• Headphones/speaker/line-out jack with S/PDIF support
• Microphone-in jack
• Line-in jack
• Ethernet (RJ-45) port
• DC-in jack for AC adapter
Environment
• Temperature:
• Operating: 5 °C to 35 °C
• Non-operating: -20 °C to 65 °C
• Humidity (non-condensing):
• Operating: 20% to 80%
• Non-operating: 20% to 80% 
						

							4Chapter 1
System Block Diagram
Azalia
ODD (SATA)
X'TAL
32.768KHz
SATA1
X'TAL
14.318MHz
CIR
X'TAL
32.768KHz
PCI-Express
X4 DMI interface
Fan Driver
USB Port x 5
EC (WPC775C)
USB 2.0
SELGO: SLG8SP585V
HDD (SATA) *2
SPI ROM
Touch Pad
USB 8CCD
Giga-LANBroadcom
X'TAL
25MHz
Transformer
USB 1, 3, 11, 12
SATA0
K/B COON.
CLOCK GENERATOR
SATA5
PCIE-6
BCM57780
RJ45 ConnectorMMB
800/ 1066 MHzDDR IIIDual Channel
Speaker
Rear Audio Amp
& Head phone
Line in
Audio CODEC
Int. D-MIC
Mini Card
USB10 & 13
New Card
USB0
PCIE-1 & 2 PCIE-4
MIC JackS/PDIFSUBWOOFER
AMD GPUPCIE
LVDS
CRT
SATA4USB 9eSATA Conn.eSATA Buffer
CHARGERISL88731
3/5V SYS PWRISL6237
CPU CORE PWRISL62882
DDR3 PWR TPS5116SO-DIMM 0
SO-DIMM 1(PWM Type)
USB 10 & 13USB 0WLAN / TV
USB 2FingerPrint
USB 4Bluetooth
Sub-Amplifier
(MAX9737)Center Mono Amp
(G1442/ 2W)
Center Speaker Front Stereo Amp
(G1453L/ 2W+2W)Front Speaker
IEEE1394a
connector
IEEE1394 &
Media Cardreader
Card Reader
Connector
HDMI
DISPLAY PORT
AN12947A
PCIE-5
LVDS_CRT_HDMISwitch Grapgics
CRT
LVDS
DISPLAY PORTHDMI
JMB380-QGAZ0B
SSID: DISCRETE: 030ASSID: SWITCH GFX: 0308SVID: 1025
Graphics Interfaces
PCI-E
X16DDR SYSTEM MEMORYFDI
PCI-E SATA
HDARTC
P9 USBDMI
ONFi 2.0
FDI
SPI ROM
SPIDMI
VTT 1.05VUP61111AQDD
intel
Arrandale (SG)
Clarksfield (Discrete)
rPGA 989
intel
Ibex Peak_M
INT_LVDSINT_CRTINT_HDMI[Arrandale Only]
(37.5mm X 37.5mm)
mBGA 676(27mm X 25mm)
LPC
BraidwoodDual Channel NAND Interface

Note:
HM55 does not support USB 6 & 7 
HM55 does not support SATA 2 & 3
2.5GT/s 2.5GT/s
3.0 GT/s
BCLK: 133MHz
PEG_CLK: 100MHz
DPLL_REF_SSCLK: 120MHz
800 MT/s 1066 MT/s
Broadway-LP / Madison-Pro
1GB
[Arrandale Only]
ALC669X
*
* *
 (64Mb x 32 IO x 8 pcs)
USB 5Touch Screen
(Debug)
(Debug)
[Arrandale Only]*
[Arrandale Only]*
X'TAL
27.0MHz
X'TAL
24.576MHz
B _
G E
P _ T U O
K L C 2 E I C P _
T U O K
L CCLKOUT_PEG_1&3 CLKOUT_PEG_4
CPU & PCH
XDP Conn.
4MB x1 (Basic ME+Braidwood)
CPU VTTARD: 1.05V
CFD: 1.1VUP61111AQDD
GPU CORE PWRISL6264
GPU IO PWRISL62827
DISCHARGER
THERMAL
PROTECTION
+1.0V/+1.5V
CPU VGFX_AXGISL62881
G93334 + Linear
+3V,+ 5V,+1.5V,+1.05V,+1.1V_VTT 
						

							Chapter 15
Front View
IconItemDescription
1 Webcam Web camera for video communication.
2  Microphone  Internal microphone for sound recording. 
3  Display screen  Also called Liquid-Crystal Display (LCD), displays 
computer output (Configuration may vary by models). 
4  Power button  Turns the computer on and off. 
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							6Chapter 1
5  Backup key  Launches backup management software. 
Bluetooth 
communication 
button/indicator Enables/disables the Bluetooth function. Indicates the 
status of Bluetooth communication (only for certain 
models) 
Wireless LAN 
communication 
button/indicator Enables/disables the wireless LAN function. Indicates 
the status of wireless LAN communication. 
6  Keyboard  For entering data into your computer. 
7  Touchpad  Touch-sensitive pointing device which functions like a 
computer mouse. 
8  HDD  Indicates when the hard disk drive is active. 
Num Lock  Lights up when Num Lock is activated. 
Caps Lock  Lights up when Caps Lock is activated. 
Power Indicates the computers power status. 
Battery Indicates the computers battery status. 
• Charging: The light shows amber when the 
battery is charging. 
• Fully charged: The light shows blue when in 
AC mode. 
9 Click buttons (left, 
center and right)* The left and right buttons function like the left and right 
mouse buttons. 
*The center button serves as Acer Bio-Protection 
fingerprint reader supporting Acer FingerNav 4-way 
control function (only for certain models). 
10  Palmrest  Comfortable support area for your hands when you 
use the computer. 
11  Touchpad toggle  Turns the internal touchpad on and off. 
12 Acer MediaTouch Touch sensitive controls for Acer Arcade, volume (up/
down) and media (play/pause, stop, previous, next); 
with mute and hold keys. 
13 Acer PowerSmart key Puts your computer into power-saving mode.
14 Speakers Left and right speakers deliver stereo audio output.
15 Screen blank Turns the display screen backlight off to save power. 
Press any key to return. 
IconItemDescription 
						

							Chapter 17
Closed Front View
Rear View
# Icon Item Description 
1 Multi-in-1 card 
reader Accepts Secure Digital (SD),  MultiMediaCard 
(MMC), Memory Stick (MS), Memory Stick 
PRO (MS PRO), xD-Picture Card (xD). 
Note: Push to remove/install the card. Only 
one card can operate at any given time. 
2  CIR receiver  Receives signals from a remote control.  
3 Speakers Dolby 5.1 speakers deliver stereo audio output.
ItemDescription
1 Tuba The dedicated Tuba CineBass subwoofer pumps out 
earthshaking movie-house audio.
2 Ventilation slots Enable the computer to stay cool, even after prolonged use.
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							8Chapter 1
Left View
#IconItemDescription
1 DC-in jack Connects to an AC adapter.
2 Ethernet (RJ-45) 
portConnects to an Ethernet 10/100/1000-based network.
3 External display 
(VGA) portConnects to a display device (e.g., external monitor, 
LCD projector).
4 DISPLAY DISPLAY port Supports high definition digital video connections.
5 HDMI HDMI port Supports high definition digital video connections.
6 eSATA e SATA port Connects to eSATA devices (only for certain models).
7 USB 2.0 port Connects to USB 2.0 devices (e.g., USB mouse, USB 
camera).
8 4-pin IEEE 1394 
portConnects to IEEE 1394 devices.
9 Line-in jack Accepts audio line-in devices (e.g., audio CD player, 
stereo walkman, mp3 player)
Microphone-in jack  Accepts inputs from external microphones.
Headphones/
speaker/line-out 
jack with S/PDIF 
supportConnects to audio line-out devices (e.g., speakers, 
headphones).
10
Expresscard / 54ExpressCard/54 
slotAccepts one ExpressCard/54 module.
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							Chapter 19
Right View
IconItemDescription
1 USB 2.0 port Connects to USB 2.0 devices (e.g., USB mouse, 
USB camera).
2 Optical drive Internal optical drive; accepts CDs or DVDs.
3 Optical disk access 
indicatorLights up when the optical drive is active.
4 Optical drive eject 
buttonEjects the optical disk from the drive.
5 Emergency eject hole Ejects the optical drive tray when the computer is 
turned off.
Note: Insert a paper clip to the emergency eject hole 
to eject the optical drive tray when the computer is 
off.
6 USB 2.0 port Connects to USB 2.0 devices (e.g., USB mouse, 
USB camera).
7 RF-in port Accepts input signals from digital TV tuner devices.
(only for certain models)
8 Kensington lock slot Connects to a Kensington-compatible computer 
security lock.
Note: Wrap the computer security lock cable around 
an immovable object such as a table or handle of a 
locked drawer. Insert the lock into the notch and turn 
the key to secure the lock. Some keyless models are 
also available.
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							10Chapter 1
Bottom View
IconItemDescription
1 Battery bay Houses the computers battery pack.
2 Battery release latch Releases the battery for removal.
3 Battery lock Locks the battery in position.
4 Hard drive bay-
SecondaryHouses the computer’s hard disk (secured with screws) 
(for certain models only).
5 Hard disk bay-Main Houses the computers hard disk (secured
with screws).
6 Memory compartment Houses the computer’s main memory
7 Ventilation slots and 
cooling fanEnable the computer to stay cool, even after prolonged 
use.
Note: Do not cover or obstruct the opening of the fan.
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