Acer Aspire 4350 User manual

Aspire 4750 and 4750G Series
Service Guide
PRINTED IN TAIWAN
Service guide files and updates are available
on the ACER/CSD web; for more information,
please refer to http://csd.acer.com.tw

II
Revision History
Please refer to the table below for the updates made on Aspire 4750 and 4750G Series service guide.
Date Chapter Updates

III
Copyright
Copyright © 2010 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in
any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without
the prior written permission of Acer Incorporated.
Disclaimer
The information in this guide is subject to change without notice.
Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular
purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the
programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its
dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential
damages resulting from any defect in the software.
Acer is a registered trademark of Acer Corporation.
Intel is a registered trademark of Intel Corporation.
Other brand and product names are trademarks and/or registered trademarks of their respective holders.

IV
Conventions
The following conventions are used in this manual:
SCREEN MESSAGES Denotes actual messages that appear
on screen.
NOTE Gives bits and pieces of additional
information related to the current
topic.
WARNING Alerts you to any damage that might
result from doing or not doing specific
actions.
CAUTION Gives precautionary measures to
avoid possible hardware or software
problems.
IMPORTANT Reminds you to do specific actions
relevant to the accomplishment of
procedures.

V
Preface
Before using this information and the product it supports, please read the following general information.
1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION
decided for Acer's "global" product offering. To better fit local market requirements and enhance product
competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.
add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered
in this generic service guide. In such cases, please contact your regional offices or the responsible
personnel/channel to provide you with further technical details.
2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information
available on your regional web or channel. If, for whatever reason, a part number change is made, it will
not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer
office may have a DIFFERENT part number code to those given in the FRU list of this printed Service
Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and
service of customer machines.

VI

VII
Table of Contents
Features 1
System Specifications 1
1
System Block Diagram 4
Your Acer Notebook tour 5
Top view 5
Hotkeys 6
Closed front view 7
Rear view 7
Left view 7
Right view 9
Base view 9
Hardware Specifications and Configurations 11
BIOS Setup Utility 19
System Utilities 19
Navigating the BIOS Utility 20
Information 21
Main 22
Security 24
Boot 28
Exit 29
BIOS Flash Utility 30
Remove HDD Password 31
Disassembly Requirements 33
Machine Disassembly and Replacement 33
General Information 34
Pre-disassembly Instructions 34
Disassembly Process 34
External Module Disassembly Process 35
External Modules Disassembly Flowchart 35
Removing the Battery Pack 36
Removing the Optical Drive Module 37
Removing the Back Cover 38
Removing the Hard Disk Drive Module 39
Removing the Wireless LAN Card 40
Removing the DIMM Module 42
Main Unit Disassembly Process 43
Main Unit Disassembly Flowchart 43
Removing the Keyboard 44
Separating the Upper Case from the Lower Case 45
Removing the Touchpad Boards 47
Removing the Left and Right Speakers 49
Removing the Power Button Board 51
Removing the Bluetooth Module 52
Removing the RTC Battery 53
Removing the USB Board 54
Removing the Main Board 55
Removing the Heatsink Module 58
Removing the CPU 60
Removing the LCD Module 61
LCD Module Disassembly Process 64

VIII
Table of Contents
LCD Module Disassembly Flowchart 64
Removing the LCD Bezel 65
Removing the LCD panel with the Brackets 66
Removing the LCD Brackets 70
Removing the FPC Cable 71
Removing the Web Camera 72
Removing the Microphone 74
Removing the Antennas 74
Troubleshooting 77
System Check Procedures 78
External Diskette Drive Check 78
External Optical Disk Drive Check 78
Keyboard or Auxiliary Input Device Check 78
Memory Check 79
Power System Check 79
Touchpad Check 80
Power-On Self-Test (POST) Error Message 80
Index of Error Messages 81
Phoenix BIOS Beep Codes 85
Index of Symptom-to-FRU Error Message 89
Intermittent Problems 92
Undetermined Problems 92
Main Board 93
Connector Locations 93
Clearing Password Check and BIOS Recovery 96
Clearing Password Check 96
BIOS Recovery by Crisis Disk 97
FRU (Field Replaceable Unit) List 99
Exploded Diagram 100
113
Model Definition and Configuration 113
Aspire 4750/4750G Series 114
Test Compatible Components 135
Hardware Device Tests 136
Online Support Information 139
Index 141

Chapter 1 1
Features
Below is a brief summary of the computer’s many features:
Platform
•Intel®Core i7 processor*
•Intel®Core i5 processor*
•Intel® Core i3 processor*
•Mobile Intel®HM55 Express Chipset
System Memory
•Dual-Channel SDRAM support
•Up to 4 GB of DDR3 1066 MHz memory, upgradeable to 8 GB using two soDIMM modules*
Display
•14” LED WXGA
Graphics
•NVidia N12PGS/N12PGV
•Integrated Intel®Graphics Media Accelerator (GMA) HD
• Screen resolution support
For UMA
•1366*768
•1360*768
•1280*768
•1280*720
•1024*768
•800*600
For Discrete
•1366*768
•1360*768
•1280*768
•1280*720
•1024*768
•800*600
HDMI Max Resolution
•1900*1200
D-Sub Max Resolution
•2560*1600
System Specifications
Chapter 1

2Chapter 1
Storage subsystem
•2.5" hard disk drive
•Optical drive options:
•Blu-ray Disc™/DVD-Super Multi double-layer drive*
•DVD-Super Multi double-layer drive*
•Multi-in-1 card reader
Special keys and controls
•86-key keyboard
•Touchpad pointing device
Audio
•Dolby®-optimized surround sound system with two built-in stereo speakers
•True 5.1-channel surround sound output
•High-definition audio support
•S/PDIF (Sony/Philips Digital Interface) support for digital speakers
•MS-Sound compatible
•Built-in microphones
Communication
•Integrated Acer Crystal Eye webcam*
•WLAN: IEEE 802.11b/g/n
•LAN: Gigabit Ethernet; Wake-on-LAN ready
I/O Ports
•Multi-in-1 card reader (SD/MMC/MS/MS PRO/xD)
•USB ports (2 x 2.0, 1 x 3.0)
•HDMI™port with HDCP support
•External display (VGA) port
•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%
Dimension and weight
• Dimension: 342 (W) x 243 (D) x 33.9 (H) mm

Chapter 1 3
(13.46 x 9.57 x 1.33 inches)
• Weight: 2.2 kg (4.85 lbs.) for UMA model
2.3 kg (5.07 lbs.) for Discreet model
NOTE: 1. "*" means only for certain models".
2. The specifications listed above are for reference only. The exact configuration of your PC depends
on the model purchased.

4Chapter 1
System Block Diagram
2869 2569
PCIE x 1
USB x 1
57
60
71
LPC debug port
Nvidia N12P
Project code : 91.4IQ01.001
PCB P/N : 48.4IQ01.0SA
Revision : 10267-1
ENE P2800
ENE P2793
ALC271X
DMIx4
1000 NIC
RJ45
CONN
SIM
SPI
Flash ROM
4MB
51
Mini-Card
HDMI
HDMI
88,89,90,91
83.84,85,86,87
BCM57780A1
KBC
Thermal
Int.
KB
LPC Bus
DDRIII
1066/1333
Intel CPU
DDRIII 1066/1333 Channel A
Slot 0
14
15
4,5,6,7,8,9,10,11,12,13
Slot 1
JE40 HR Block Diagram
(Discrete/UMA/co-lay)
Bluetooth
63
Left Side:
USB x 1
WWAN
Right Side:
USB x 1
CAMERA
49
MIC IN
Mini-Card
802.11a/b/g
LVDS(Dual Channel)
CRT
Intel
56
LCD
RGB CRT
ODD
56
14 USB 2.0/1.1 ports
High Definition Audio
SATA x 2
SATA ports (6)
ACPI 1.1
LPC I/F
HDD
SD/MMC+/MS/
MS Pro/xD
Azalia
CODEC
USB2.0 x 4
29
2CH SPEAKER
HP1
Internal Analog MIC
ETHERNET (10/100/1000Mb)
NPCE795P
PCIE ports (8)
NUVOTON
28
DDR3
800MHz
2GB/1GB/512MB
Fan
VRAM
27
49
17,18,19,20,21,22,23,24,25,26
PCIe x 16
Touch
PAD
FDIx4x2
(UMA only)
Discreet/UMA/PX Co-lay
AZALIA
65
66 66
31
59
64
50
(Discrete only)
Level
shifter
##OnMainBoard
SMBus
USB 2.0 x 1
PCIE x 1,USB x 1
PCIE x 1
Sandy Bridge
FSB: 1066 MHz
DDRIII
1066/1333
DDRIII 1066/1333 Channel B
PCH
Cougar Point
75
PCIE x 1
USB x 2
USB3.0
uPD720200

Chapter 1 5
Your Acer Notebook tour
After knowing your computer features, let us show you around your new computer.
Top view
#Icon Item Description
1 Integrated webcam Web camera for video communication (only for certain model).
2 Display screen Also called Liquid-Crystal Display (LCD), displays computer output
(Configuration may vary by models).
3 Power button Turns the computer on and off.
4 Keyboard For entering data into your computer.
5 Touchpad Touch-sensitive pointing device which functions like a computer mouse.
6 HDD indicator Indicates when the hard disk drive is active.
Communication indicator Indicates the computer’s wireless connectivity device status.
Power indicator Indicates the computer’s power status.
Battery indicator Indicates the computer’s battery status.
1. Charging: The light shows amber when the battery is charging.
2. Fully charged: The light shows blue when in AC mode.
1
3
2
4
5
6
8
7

6Chapter 1
Hotkeys
The computer employs hotkeys or key combinations to access most of the computer's controls like screen brightness and volume
output.
To activate hotkeys, press and hold the <Fn> key before pressing the other key in the hotkey combination.
7 Click buttons (left and right) The left and right buttons function like the left and right mouse buttons.
8 Microphone Internal microphone for sound recording.
Hotkey Icon Function Description
<Fn> + <F3> Communication Enables/disables the computer’s communication devices.
<Fn> + <F4> Sleep Puts the computer in Sleep mode.
<Fn> + <F5> Display toggle Switches display output between the display screen, external monitor (if
connected) and both.
<Fn> + <F6> Screen blank Turns the display screen backlight off to save power. Press any key to
return.
<Fn> + <F7> Touchpad toggle Turns the internal touchpad on and off.
<Fn> + <F8> Speaker toggle Turns the speakers on and off.
<Fn> + < > Brightness up Increases the screen brightness.
<Fn> + < > Brightness down Decreases the screen brightness.
<Fn> + < > Volume up Increases the sound volume.
<Fn> + < > Volume down Decreases the sound volume.
<Fn> + <Home> Play/Pause Play or pause a selected media file.
<Fn> + <Pg Up> Stop Stop playing the selected media file.
<Fn> + <Pg Dn> Previous Return to the previous media file.
<Fn> + <End> Next Jump to the next media file.
#Icon Item Description

Chapter 1 7
Closed front view
Rear view
Left 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 HDD indicator Indicates when the hard disk drive is active.
Communication
indicator Indicates the computer’s wireless connectivity device status.
Power indicator Indicates the computer’s power status.
Battery indicator Indicates the computer’s battery status.
1. Charging: The light shows amber when the battery is charging.
2. Fully charged: The light shows blue when in AC mode.
#Item Description
1 Battery bay Houses the computer’s battery pack.
#Icon Item Description
1 DC-in jack Connects to an AC adapter.
2 Ethernet (RJ-45) port Connects to an Ethernet 10/100/1000-based network.
3 External display (VGA) port Connects to a display device
(e.g., external monitor, LCD projector).
4 HDMI HDMI port Supports high definition digital video connections.
12
1
21345

8Chapter 1
5 USB 2.0 port Connect to USB 2.0 devices
(e.g., USB mouse, USB camera).
#Icon Item Description

Chapter 1 9
Right view
Base view
#Icon Item Description
1Microphone jack Accepts inputs from external microphones.
Headphones/speaker/line-out
jack with
S/PDIF support
Connects to audio line-out devices
(e.g., speakers, headphones).
2 USB 2.0/3.0* Connects to USB devices.
* A USB 3.0 port can be distinguished by its blue connector (for certain
models only).
* Supports the USB 3.0 (SuperSpeed USB) specification; Devices without
USB 3.0 certification may not be compatible.
3 Optical drive Internal optical drive; accepts CDs or DVDs.
4 Optical disk access indicator Lights up when the optical drive is active.
5 Optical drive eject button Ejects the optical disk from the drive.
6 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.
7 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.
#Icon Item Description
1 Battery bay Houses the computer's battery pack.
2134756
1
2
3
4
5
6

10 Chapter 1
2 Battery release latch Releases the battery for removal.
4 Memory compartment Houses the computer's main memory.
5 Hard disk bay Houses the computer's hard disk (secured with screws).
#Icon Item Description

Chapter 1 11
Hardware Specifications and Configurations
Processor
Throttling 50%: On= 99 C; OFF=93 C
OS shut down at 105 C; H/W shot down at 110 .C
Item Specification
CPU type Intel®Corei3 i3-2310M PGA 2.1G 35W
Intel®Core i5 2410M PGA 2.3G 35W
Intel®Core i5 2520M PGA 2.5G 35W
Intel®Core i5 2540M PGA 2.6G 35W
Intel®Core i7-2620M PGA 2.7G 35W
Intel®Core i7-2630QM PGA 2.0G 45W
Intel®Core i7-2720QM PGA 2.2G 45W
Intel®Core i7-2820QM PGA 2.3G 45W
Core logic PCH/HM65 Express chipset
CPU package PGA 988
CPU Fan True Value Table
DTS(degree C) Fan Speed (rpm) Acoustic Level (dBA)
45-50 0-3000 29
55-66 0-3300 33
68-74 3300-3800 38
78-83 3800-4100 40
86-91 4100-4800 40
BIOS
Item Specification
BIOS vendor Phoenix
BIOS Version 1.0
Supported protocol ACPI 1.0b/2.0/3.0 compliance, PCI 2.2, System/HDD Password
Security Control, INT 13H Extenstions, PnP BIOS 1.0a SMBIOS
2.4, BIOS Boot Specification, Simple Boot Flag 1.0, Boot Block,
PCI Bus Power Management Interface Specification, USB
Specification 1.1/2.0, IEEE 1394 1.0, USB/1394 CD-ROM Boot Up
support, PC Card Standard 1995 (PCMCIA 3.0 Compliant Device),
IrDA 1.0, Intel AC97 CNR Specification, WfM 2.0, PXE 2.1, Boot
Integrity Service Application Program Interface (BIS) 1.0, PC99a
and Mobile PC2001 Compliant
System Memory
Item Specification
Memory controller Built-in
Memory size 0MB (no on-board memory)
DIMM socket number 2 sockets
Supports memory size per socket 2048MB
Supports maximum memory size 4G for 64bit OS (with two 2GB SODIMM)
Supports DIMM type DDR 3 synchronous DRAM
°
°
°
°

12 Chapter 1
NOTE: Above table lists some system memory configurations. You may combine DIMMs with various
capacities to form other combinations. On above table, the configuration of slot 1 and slot 2 could be
reversed.
LAN Module
Supports DIMM Speed 1066/1333 MHz
Supports DIMM voltage 1.5V
Supports DIMM package 240-pin soDIMM
Memory module combinations You can install memory modules in any combinations as long as
they match the above specifications.
Memory Combinations
Slot 1 Slot 2 Total Memory
0MB 1024MB 1024MB
0MB 2048MB 2048MB
1024MB 0MB 1024MB
1024MB 1024MB 2048MB
1024MB 2048MB 3072MB
2048MB 0MB 2048MB
2048MB 1024MB 3072MB
2048MB 2048MB 4096MB
Item Specification
LAN Chipset Broadcom BCM 57785
Supports LAN protocol 10/100/1000 Mbps
LAN connector type RJ45
LAN connector location Left side
Features Integrated 10/100 BASE-T transceiver
Wake on LAN support compliant with ACPI 2.0
PCI v2.2
Bluetooth Interface
Item Specification
Chipset Foxconn Bluetooth BRM 2046 BT2.1 (T60H928.33) f/
w:861
Data throughput 723 bps (full speed data rate)
Protocol Bluetooth 2.1
Interface USB 1.1
Connector type USB
Wireless Module 802.11b/g/n
Item Specification
Chipset Broadcomm 43225 2x2 BGN
Atheros HB97 2x2 BGN
System Memory
Item Specification