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Acer Aspire 4810TZ Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide - Page 99

Intermittent Problems

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Intermittent Problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: 1. Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRU. 3. If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors. Chapter 4 91

Section	Page
Features	9
Aspire 4810T/4810TZ/4410T System Block Diagram	11
Aspire 4810TG System Block Diagram	12
Your Acer Notebook tour	13
Right View	16
Indicators	19
Easy-Launch Buttons	19
Touchpad basics (with two-click buttons)	19
Using the Keyboard	21
Lock Keys and Numeric Keypad	21
Windows Keys	22
Hot Keys	23
Special Key (only for certain models)	23
Windows Mobility Center	24
Using the System Utilities	25
Acer GridVista (dual-display compatible)	25
Hardware Specifications and Configurations	27
BIOS Setup Utility	35
Navigating the BIOS Utility	36
Information	37
Main	38
Security	40
Boot	43
Exit	44
BIOS Flash Utility	45
BIOS Flash Utility	45
Remove HDD and BIOS Passwords	46
Disassembly Requirements	49
General Information	50
Pre-disassembly Instructions	50
Disassembly Process	50
External Module Disassembly Process	51
Removing the Battery Pack	52
Removing the Lower Cover	53
Removing the Optical Drive Module	54
Removing the DIMM	54
Removing the Hard Disk Drive Module	55
Removing the SSD Module	56
Removing the RTC Battery	56
Main Unit Disassembly Process	58
Removing the Keyboard	59
Removing the WLAN Board Module	60
Separating the Upper Case from the Lower Case	61
Removing the Power Button Board	63
Removing the Touchpad Module	64
Removing the Speaker Module	65
Removing the LED Board	66
Removing the LCD Module	67
Removing the System Board	69
Removing the Thermal Module	71
Removing the Mini Board Module	73
Removing the CRT Board Module	74
Removing the Card Reader Board	75
Removing the Bluetooth Module	76
Removing the Touchpad Lock Board	77
LCD Module Disassembly Process	79
Removing the LCD Bezel	80
Removing the LCD Panel Hinges	81
Removing the LCD Panel	82
Removing the Webcam	84
Removing the Microphone	85
System Check Procedures	88
External Diskette Drive Check	88
External Optical Disk Drive Check	88
Keyboard or Auxiliary Input Device Check	88
Memory Check	89
Power System Check	89
Touchpad Check	90
Power-On Self-Test (POST) Error Messages	91
Post Code Table	92
Index of Symptom-to-FRU Errors	95
Intermittent Problems	99
Undetermined Problems	100
Top and Bottom Views	101
Aspire 4810T/4810TZ/4410T Top View	101
Aspire 4810T/4810TZ/4410T Bottom View	102
Aspire 4810TG Top View	103
Aspire 4810TG Bottom View	104
Clearing Password Check and BIOS Recovery	105
BIOS Recovery by Crisis Disk	106
Aspire 4810T/4810TZ/4410T Series Exploded Diagram	110
Aspire 4810TG Series Exploded Diagram	111
Model Definition and Configuration	127
Aspire 4810T/4810TZ/4410T/4810TG Series	127
Microsoft® Windows® Vista Environment Test	142
Online Support Information	145

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