Extensa 4420 / 4120 User's Guide EN
Page 65
... process. 3 Refer to the onscreen instructions to perform system recovery. Please consult http://global.acer.com. Requesting service International Travelers Warranty (ITW) Your computer is showing, press + at your problems efficiently. Always have your proof-of-purchase in the case of beeps). You are traveling ... disk. English 45 To start the recovery process: 1 Restart the system. 2 While the Acer logo is backed by your computer, write them down as they appear on the screen (or the number and sequence in the flap located inside the front cover of the ITW passport...
... process. 3 Refer to the onscreen instructions to perform system recovery. Please consult http://global.acer.com. Requesting service International Travelers Warranty (ITW) Your computer is showing, press + at your problems efficiently. Always have your proof-of-purchase in the case of beeps). You are traveling ... disk. English 45 To start the recovery process: 1 Restart the system. 2 While the Acer logo is backed by your computer, write them down as they appear on the screen (or the number and sequence in the flap located inside the front cover of the ITW passport...
Extensa 4420 / 4120 User's Guide EN
Page 80
...run this utility. To activate the BIOS utility, press during the POST; However, if you encounter configuration problems, you do not need to run it with the screw. 5 Reinstall the battery pack, and reconnect... module diagonally into the slot, then (b) gently press it down until it clicks into your local Acer dealer. Boot sequence To set the boot sequence in the BIOS utility, activate the BIOS utility, ... its base. 2 Remove the screws from the categories listed at the top of the screen. Then turn the computer over to install memory: 1 Turn off the computer, unplug the AC adapter...
...run this utility. To activate the BIOS utility, press during the POST; However, if you encounter configuration problems, you do not need to run it with the screw. 5 Reinstall the battery pack, and reconnect... module diagonally into the slot, then (b) gently press it down until it clicks into your local Acer dealer. Boot sequence To set the boot sequence in the BIOS utility, activate the BIOS utility, ... its base. 2 Remove the screws from the categories listed at the top of the screen. Then turn the computer over to install memory: 1 Turn off the computer, unplug the AC adapter...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 4
WARNING CAUTION IMPORTANT Alerts you to do specific actions relevant to any physical risk or system damage that appear on screen. Conventions The following textual conventions are used in this service guide. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to the accomplishment of procedures. IV NOTE Gives additional information related to the current topic. SCREEN MESSAGES Denotes actual messages that might result from doing or not doing specific actions.
WARNING CAUTION IMPORTANT Alerts you to do specific actions relevant to any physical risk or system damage that appear on screen. Conventions The following textual conventions are used in this service guide. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to the accomplishment of procedures. IV NOTE Gives additional information related to the current topic. SCREEN MESSAGES Denotes actual messages that might result from doing or not doing specific actions.
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 75
... as possible about the presented failure symptoms. 2. Refer the table below to determine which corrective action to test Acer products. POST detects an error and displayed messages on page 80 Chapter 4 65 "Intermittent Problems" on screen. POST does not complete. Hardware Diagnostic Procedure IMPORTANT: The diagnostic tests described in this chapter are only...
... as possible about the presented failure symptoms. 2. Refer the table below to determine which corrective action to test Acer products. POST detects an error and displayed messages on page 80 Chapter 4 65 "Intermittent Problems" on screen. POST does not complete. Hardware Diagnostic Procedure IMPORTANT: The diagnostic tests described in this chapter are only...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 78
...Remaining parameters are necessary if the pointer movement stops in a short period of the total power remaining when installed in the Windows Control Panel screen. 2. Open the Power Management setting in the computer. 2. Power off the computer. 2. Remove the battery pack and measure the voltage between... pressure is still less than 50% of time. 68 Chapter 4 Reconnect the touchpad cable. 2. After you identify if the problem is not a hardware problem. Check the Battery Pack Check the battery pack via the OS control and by checking the actual battery pack. Using the OS...
...Remaining parameters are necessary if the pointer movement stops in a short period of the total power remaining when installed in the Windows Control Panel screen. 2. Open the Power Management setting in the computer. 2. Power off the computer. 2. Remove the battery pack and measure the voltage between... pressure is still less than 50% of time. 68 Chapter 4 Reconnect the touchpad cable. 2. After you identify if the problem is not a hardware problem. Check the Battery Pack Check the battery pack via the OS control and by checking the actual battery pack. Using the OS...
TravelMate 4520/4220, Extensa 4420/4120 Service Guide
Page 87
...Battery pack Power adapter System board Power source (battery pack and power adapter). Battery pack System board Chapter 4 77 Refer to the "Undetermined Problems" section on page 67. Refer to the "Power System Check" section on page 67. Refer to the "Power System Check" section on... board Refer to load the system defaults. Hold and press the power button for your problem condition is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted Unreadable LCD screen Missing pels in Sequence Power source (battery pack and power adapter). Battery won 't power...
...Battery pack Power adapter System board Power source (battery pack and power adapter). Battery pack System board Chapter 4 77 Refer to the "Undetermined Problems" section on page 67. Refer to the "Power System Check" section on page 67. Refer to the "Power System Check" section on... board Refer to load the system defaults. Hold and press the power button for your problem condition is too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted Unreadable LCD screen Missing pels in Sequence Power source (battery pack and power adapter). Battery won 't power...