Aspire 4810TZ Screen Problem

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 4
Gives precautionary measures to avoid possible hardware or software problems. Reminds you to any damage that appear on screen. Alerts you to do specific actions relevant to the current topic. IV NOTE WARNING CAUTION IMPORTANT Gives bits and pieces of additional information related to the accomplishment of procedures. Conventions The following conventions are used in this manual: SCREEN MESSAGES Denotes actual messages that might result from doing or not doing specific actions.

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 35
.... If you want to change boot device without entering BIOS Setup Utility, please set to run Setup. However, if you encounter configuration problems, you may need to enter setup. Chapter 2 27 The default parameter of F12 Boot Menu is set the parameter to enter Setup" ...message is prompted on the bottom of screen). In this utility. Please also refer to enter multi-boot menu. Press during POST (when "Press to "enabled". Your computer is a hardware ...

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 46
Remove HDD and BIOS Passwords This section teaches you how to solve HDD password locked problem, you key in the wrong HDD password thrice, "HDD password error code" will appear on the screen. Select "2" 3. Choose one of the uppercase strings • Reboot the system and key in "hdd_pw 15494 0" 2. See the image below. • If you need to remove HDD password: Remove HDD Password • If you can run HDD_PW.EXE 1. Key in "0KJFN42" or "UVEIQ96" as your HDD user password. 38 Chapter 2

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 47
See the image below. • If you need to solve BIOS password locked problem, you key in wrong Supervisor Password for three time, "System Disabled" would display on the screen. Key in "qjjg9vy" or "07yqmjd" as your BIOS user password. Choose one upper-case string • Reboot the system and key in "bios_pw 14452 0" 2. Remove BIOS Password • If you can run BIOS_PW.EXE 1. Chapter 2 39

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 87
...does not go to "Post Code Table" on page 84. POST detects an error and displayed messages on page 84. "Undetermined Problems" on page 92 See "Post Code Table" on screen. See "Post Code Table" on page 84. Use the customer-reported symptoms and go on or stay on page 81.. ... attempting to re-create the failure by running the diagnostic test or by repeating the same operation. 3. LCD display problems or others). No beep or error codes are intended to test only Acer products. Go To See "Power System Check" on .) POST does not complete. Chapter 4 Troubleshooting Use the following ...

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 89
... to the next step. • External keyboard If any of these devices do the following: • Replace the System board. • If the problem is not corrected, see "Undetermined Problems" on page 92. • If the voltage is not correct, go to +20.5V Pin 2: 0V, Ground 1. Go to main board. 2. ...; "Check the Power Adapter" on page 81 • "Check the Battery Pack" on page 82. Power System Check To verify the symptom of the problem, power on the screen, or hang the system. 1. Boot from the power adapter does not always indicate a defect. 3. If the voltage is within the range, do not...

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 90
..., replace the DC/DC charger board. Touchpad Check If the touchpad doesn't work, do the following actions one at a time to correct the problem. Do not replace a non-defective FRU: 1. Repeat the steps 1 and 2, for Current Power Source and Total Battery Power Remaining are necessary ...if the pointer movement stops in the screen for both battery and adapter. 4. If the voltage is on the screen for a short time. Replace the touchpad. 3. After you identify first the problem is still less than 50% of time. 82 Chapter 4 Check ...

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 91
...defective FRU. This index can also help you make changes in the computer. NOTE: Most of memory installed. Chapter 4 83 Others may indicate a problem with a device, such as the way it has been configured. Some of them display information about a hardware device, e.g., the amount of the error...Setup defaults or correct the error. If the symptom is listed first. The most likely cause is not listed, see "Undetermined Problems" on the screen and the error symptoms classified by function. Power-On Self-Test (POST) Error Messages The POST error message index lists the error...

Aspire 4810T, 4810TG, 4810TZ and 4410TZG Service Guide

Page 147
A Aspire 4 Audio 22 B battery pack removing 44 BIOS 19 vendor 19 Version 19 BIOS Recovery Boot Block 98 ...Hard disk 21 hard disk drive module removing 47 HDD 21 Hot key Bluetooth 15 brightness down 15 brightness up 15 Display 15 Screen blank 15 Sleep 15 Speaker 15 System property 15 volume down 15 volume up 15 Hot Keys 13, 15 I Indicator battery... 11 HDD 11 WLANG/3G 11 Indicator/button Acer PowerSmart key 11 backup key 11 power 11 Indicators 11 Intermittent Problems 91 K Keyboard 23 removing 51 using 13 Keyboard or Auxiliary Input Device Check 80 L Launch ...

Aspire 4810TZ Screen Problem - Acer