Table of Contents

Removing the LED Board

49

 

 

Removing the Fingerprint and Touchpad Boards

50

Removing the Card Reader Board

52

 

Removing the Bluetooth Board

53

 

 

Removing the System Board

54

 

 

Removing the Modem Board

55

 

 

Removing the Speakers

55

 

 

 

LCD Module Disassembly 57

 

 

 

 

LCD Module Disassembly Flowchart

57

 

Removing the LCD Bezel

58

 

 

Removing the Inverter Board

59

 

 

Removing the LCD Module Hinges

60

 

Removing the LCD Panel

60

 

 

 

Removing the LCD-CCD Cable

61

 

Removing the LCD Panel Brackets

62

 

Removing the Internal Microphone and the CCD Board

63

Removing the WLAN Antennas

64

 

Hardware Diagnostic Procedure 65

 

 

 

System Troubleshooting 65

Chapter 4 65

System Check Procedures 66

External Diskette Drive Check 66

External CD-ROM Drive Check 66

Keyboard or Auxiliary Input Device Check 66

Memory Check 67

Power System Check 67

Touchpad Check 68

POST Error Indicators 69

POST Error Message 69

POST Beep Codes 72

Index of Symptom-to-FRU Error Message 77

Intermittent Problems 80

Undetermined Problems 81

Online Support Information 82

System Block Diagram 83

System Block Diagram and Board Layout 83

Chapter 5 83 83

System Board Layout 84

Top View 84

Bottom View 85

System Switch 86

FRU (Field Replaceable Unit) List 87

Chapter 6 87

Aspire 5910 Exploded Diagram 88

TravelMate 4520 FRU List 89

TravelMate 4520 Series Model Configurations 107

Appendix A 107

VIII

Page 8
Image 8
Acer 4520 manual System Troubleshooting, Viii

4520 specifications

The Acer 4520 laptop is a versatile and economically accessible device that caters to a wide variety of computing needs. Launched in the mid-2000s, this laptop became particularly popular among students and working professionals, thanks to its balance of performance, portability, and affordability.

One of the standout features of the Acer 4520 is its durable yet lightweight design, which weighs around 2.6 kg. This makes it easy to carry around, whether for commuting to school or taking it to a coffee shop for remote work. The 15.4-inch screen with a resolution of 1280 x 800 pixels provides a decent visual experience, suitable for both productivity tasks and media consumption.

In terms of performance, the Acer 4520 is typically equipped with AMD processors, such as the AMD Turion X2 or Athlon series, which are designed to deliver competent multitasking capabilities. The laptop usually comes with 1GB or 2GB of RAM, allowing users to run essential applications smoothly. Additionally, the device features a 120GB to 250GB hard drive, providing ample storage space for documents, photos, and multimedia files.

Connectivity is another strong point of the Acer 4520. It comes with a variety of ports, including USB 2.0, VGA, and audio jacks, as well as a built-in webcam for video conferencing and social interaction. The laptop supports Wi-Fi connectivity, enabling users to access the internet wirelessly, which is essential for both personal and professional use.

The Acer 4520 also integrates several multimedia features, including a DVD-RW drive for reading and writing optical discs, along with built-in speakers that deliver sound decent enough for casual listening. Additionally, it supports Acer's own PowerSmart technology, which helps manage battery life and optimize performance, allowing users to prolong their usage time during on-the-go scenarios.

Furthermore, the laptop offers a user-friendly operating system, commonly shipped with Windows Vista or later versions, providing a familiar environment for users. Overall, the Acer 4520 stands out with its balanced range of features, reliability, and economical price point, making it an attractive option for budget-conscious individuals seeking a capable laptop for everyday tasks. This blend of utility and performance ensures that the Acer 4520 remains relevant for basic computing needs even years after its initial release.