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