Acer Extensa 5420 Support Question
Acer Extensa 5420 Support Question
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Question posted by dpdBe on October 4th, 2014
Acer Extensa 5420 Series Wont' Turn On
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Current Answers
Answer #1: Posted by freginold on October 8th, 2014 4:30 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
When a laptop won't power on, it's often because of one of four things: the battery, the battery charger/AC adapter, the power board/battery charging board (if the laptop has one), or themotherboard.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
Related Acer Extensa 5420 Manual Pages
User Manual - Page 2
.... The serial number and model number are used herein for a particular purpose. All correspondence concerning your computer. Acer Incorporated. All Rights Reserved. Copyright © 2007. No part of such revisions or changes. Extensa 5420/5120 Series User's Guide Original Issue: 05/2007
Changes may be made periodically to the information in the space provided...
User Manual - Page 3
...
Be sure that the power outlet you . Dummies protect unused slots from the electrical outlet. Save the dummy for use liquid cleaners or aerosol cleaners.
Turning the product off before cleaning. Unplug the power cord before removing the power supply unit from the wall outlet before cleaning
Unplug this document for...
User Manual - Page 6
...on the battery.) This might happen, for example, when you would normally be susceptible to turn off your battery only with a hot or cold battery may not work temporarily, even ... properly.
The capacity and lifetime of the battery will eventually wear out. A device with Acer approved chargers designated for its intended purpose. Battery performance is especially limited in fire. Do not...
User Manual - Page 7
... all wireless or radio transmitting devices when using equipment that the above -stated distance from your laptop under the following conditions. Additional safety information
Your device and its antenna are magnetic. For safety reasons, turn off all telephone lines from the equipment when not in these areas instruct you should not hold...
User Manual - Page 8
If you would normally be maintained between wireless devices and a pacemaker to turn off your device before boarding an aircraft. Hearing aids. Faulty installation or service may be illegal. For vehicles equipped with an air bag, remember that ...
User Manual - Page 9
....
For lamp-specific disposal information, check www.lamprecycle.org. For more information on the Waste from Electrical and Electronics Equipment (WEEE) regulations, visit http://global.acer.com/about/sustainability.htm
Mercury advisory
For projectors or electronic products containing an LCD/CRT monitor or display: Lamp(s) inside this electronic device into the...
User Manual - Page 10
...average home, 75% of physical injury after prolonged use . As an ENERGY STAR partner, Acer Inc. Tips and information for energy efficiency.
More information refers to computer use up to ...at risk of all electricity used to 50% less energy than conventional equipment. Users are turned off position use , consult a physician immediately and inform your company's health and safety ...
User Manual - Page 13
.... xiii
First things first
We would like to thank you for making an Acer notebook your choice for using your computer
Turning your computer on and off , the Just for the location of the power...notebook. Follow these steps to the basic features and functions of guides:
First off
To turn on how to use your Acer notebook, we have designed a set of your computer can help you to be more on...
User Manual - Page 14
... are using an extension cord. Taking care of your AC adapter:
• Do not connect the adapter to turn it on again, wait at least two seconds before powering up. Also, the total current rating of all equipment...click on Shut Down.
• Use the power button
You can also shut down the computer. xiv
To turn the power off, do not pull on the cord itself but pull
on the plug.
• The total...
User Manual - Page 16
...guides
xiii
Basic care and tips for using your computer
xiii
Turning your computer on and off
xiii
Taking care of your ...Acer Empowering Technology
1
Empowering Technology password
1
Acer eNet Management
2
Acer ePower Management
4
Acer ePresentation Management
6
Acer eDataSecurity Management (for selected models)
7
Acer eLock Management
8
Acer eRecovery Management
10
Acer...
User Manual - Page 22
..., delete and restore power plans, as required. You can also turn on . 4 If necessary, change the display and sleep settings you wish to save your computer
to use. 5 Click "OK" to edit 2 Adjust settings as described below. Empowering Technology
4
Acer ePower Management
Acer ePower Management features a straightforward user interface for On Battery and...
User Manual - Page 33
..." on page 26 for more details. and right)
*The center button serves as Acer Bio-Protection
fingerprint reader supporting Acer FingerNav 4-way
control function (manufacturing option) or a 4-way
scroll button (manufacturing option....
9 Keyboard
For entering data into your computer.
10 Power button Turns the computer on page 25 for your hands when you use the computer.
6 Click buttons The ...
User Manual - Page 45
...; Sync key - Icon Productivity key Lock Presentation
Sync
Default application
Launch Windows Lock function
Minimizes your display for presenting
Launch NTI Shadow If the laptop is equipped with Acer BioProtection, you only need to swipe your computer system to work.
• Lock key - instantly synchronizes your finger to lock the notebook when...
User Manual - Page 50
...'s controls like screen brightness, volume output and the BIOS utility.
English
32
Hotkeys
The computer employs hotkeys or key combinations to return. Turns the display screen backlight off .
See "Acer Empowering Technology" on hotkeys. Switches display output between the display screen, external monitor (if connected) and both. Hotkey
Icon
+
Function
Hotkey help...
User Manual - Page 61
... location. Before performing a restore operation, please check the BIOS settings. 1 Check to see if Acer disk-to the Windows manual. Note: Please note, on first booting your notebook, that is installed... when you can skip the Internet Connection setup, as it is
turned on.
• Make sure that the printer cable is connected securely to its original settings ...
User Manual - Page 78
... diagonally into the slot, then (b) gently press
it down until it clicks into your local Acer dealer. To activate the BIOS utility, press during the POST; English
60
Installing memory
Follow ..., and reconnect the AC adapter. 6 Turn on the computer. BIOS utility
The BIOS utility is being displayed. Then turn the computer over to install memory: 1 Turn off the computer, unplug the AC adapter...
User Manual - Page 85
...other relevant provisions of Directive 1999/5/EC. (Please visit http://global.acer.com/products/notebook/reg-nb/index.htm for complete documents.) Compliant with Russian regulatory certification
...Modem notices
Notice for EU countries
Hereby, Acer, declares that this notebook PC series is not practical, you will also be notified as soon as possible.
...
User Manual - Page 91
Note: The Acer wireless Mini PCI adapter implements a transmission diversity function. For further information... Estonia, Latvia, Lithuania, Poland, Hungary, Czech Republic, Slovak Republic, Slovenia, Cyprus and Malta.
Nevertheless, the notebook PC series shall be used in strict accordance with FCC RF exposure compliance requirements, a separation distance of at least 20 cm (8 inches...
User Manual - Page 94
...Rules. z, or A - San Jose, CA 95110 USA
Contact person:
Acer Representitive
Tel:
1-254-298-4000
Fax:
1-254-298-4147
The following .../importer is responsible for this declaration:
Product name:
Notebook PC
Model number:
MS2210
Machine type:
Extensa 5420/5120
SKU number:
Extensa 5420/5120-xxxxx ("x" = 0 - 9, a - 76
English
Federal Communications Commission Declaration of Conformity...
User Manual - Page 95
..., China
Contact Person: Mr. Easy Lai Tel: 886-2-8691-3089 Fax: 886-2-8691-3000 E-mail: easy_lai@acer.com.tw
Hereby declare that: Product: Personal Computer Trade Name: Acer Model Number: MS2210 Machine Type: Extensa 5420/5120 SKU Number: Extensa 5420/5120-xxxxx ("x" = 0~9, a ~ z, or A ~ Z) Is compliant with the essential requirements and other relevant provisions of the following...
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