Toshiba Satellite L775 Support Question
Toshiba Satellite L775 Support Question
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Question posted by fazci on October 15th, 2014
Toshiba Satellite L775-s7245 Wont Start
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Current Answers
Answer #1: Posted by freginold on December 5th, 2014 4:34 AM
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 the motherboard/system board. Without being able to troubleshoot the laptop, it's almost impossible to say for sure which of the components is causing the problem.
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 Toshiba Satellite L775 Manual Pages
User Guide - Page 1
GMAD00275010 03/11 Satellite®/Satellite Pro® L700 Series User's Guide
If you need assistance: ❖ Toshiba's Support Web site
pcsupport.toshiba.com ❖ Toshiba Customer Support Center
Calling within the United States (800) 457-7777 Calling from outside the United States (949) 859-4273 For more information, see "If Something Goes Wrong" on page 170 in this guide.
User Guide - Page 2
...;/Satellite Pro® L700 Series
Recordable and/or ReWritable Drive(s) and Associated Software Warranty
The computer system you may include Recordable and/or ReWritable optical disc drive(s) and associated software, among the most advanced data storage technologies available. TOSHIBA AMERICA INFORMATION SYSTEMS, INC. ("TOSHIBA"), ITS AFFILIATES AND SUPPLIERS DO NOT WARRANT THAT OPERATION...
User Guide - Page 7
... frequency range 5.15 GHz to 5.25 GHz to reduce the potential for harmful interference to co-channel Mobile Satellite systems.
High power radars are designed to 5.85 GHz bands. Wireless Interoperability
The TOSHIBA Wireless LAN Mini PCI Card products are allocated as defined by the Institute of Electrical and Electronics Engineers.
❖...
User Guide - Page 29
.... HDMI, the HDMI Logo and High-Definition Multimedia Interface are registered trademarks of Toshiba America Information Systems, Inc. Intel, Intel Core, Celeron, Centrino and Pentium are...us.toshiba.com/green.
For disposal, reuse or recycling information, please contact your local government or the Electronic Industries Alliance at www.eiae.org. 29
Trademarks
Satellite, Satellite ...
User Guide - Page 34
... instant password 153 Using a supervisor password 154 Using a user password 155 Deleting a user password 156 TOSHIBA Face Recognition Utility 157 TOSHIBA PC Diagnostic Tool Utility 158 Mouse Utility 159 TOSHIBA Hardware Setup 160 TOSHIBA Sleep Utility 162 Starting the TOSHIBA Sleep Utility 162 USB Sleep and Charge 162 Enabling/Disabling USB Sleep and
Charge 164 Power...
User Guide - Page 41
... and icons described in this document) ❖ A Quick Start Card ❖ A Resource Guide ❖ It may also contain guides for other product information, be sure to regularly check the Toshiba Web site at accessories.toshiba.com. For accessory information, visit Toshiba's Web site at pcsupport.toshiba.com.
Your select model may not have selected all...
User Guide - Page 43
... is designed to provide optimum safety and ease of the computer. Keeping yourself comfortable
The Toshiba Instruction Manual for Safety and Comfort, included with the underside or surface of use, and... moisture can cause electric shock or fire, resulting in damage or serious injury. Getting Started
43
Selecting a place to work
To keep your computer in prime operating condition, protect...
User Guide - Page 46
...requires power to charge the computer's battery.
46
Getting Started
Connecting to a power source
NOTE
Please handle your computer and the TOSHIBA Battery Charger (that the power plug (and extension cable ... cord/cable
AC adaptor cord
(Sample Illustration) Power cord/cable and AC adaptor
TOSHIBA assumes no liability for any risk of an incompatible AC adaptor or Battery Charger ...
User Guide - Page 51
... to your product.
Getting Started
51
Registering your computer with Toshiba
Registering your computer with Toshiba
Product registration is strongly recommended, and allows Toshiba to send you must be completed by either visiting the Toshiba Web site at http://www.register.toshiba.com, or by clicking Start, All Programs, My Toshiba, and then Toshiba Registration. Failure to :
❖...
User Guide - Page 52
...computer's screws, use complex software or process large amounts of the computer. 52
Getting Started
Adding memory (optional)
Adding memory (optional)
HINT: To purchase additional memory modules, see...be hot.
NOTE
Before adding external devices or memory, Toshiba recommends setting up your system or visit accessories.toshiba.com.
Installing a memory module
Memory modules can be ...
User Guide - Page 63
Getting Started
63
Recovering the Internal Storage Drive
Recovery option Description
Recover without
This option recovers just ... storage drive fails, you can restore your system to an external power source via the AC adaptor.
❖ The Toshiba Recovery Wizard also provides the option of erasing your internal storage drive become corrupted or are restored.
See "Erasing the Internal...
User Guide - Page 64
...AC adaptor. Be sure to save your computer, press the F12 key when the initial TOSHIBA screen displays.
To recover the original factory image using the utilities on your computer's internal ... To recover using recovery DVDs/media, if you have created such media. 64
Getting Started
Recovering the Internal Storage Drive
Recovering to out-of-box state (recommended recovery method)
...
User Guide - Page 65
Getting Started
65
Recovering the Internal Storage Drive
5 A warning screen appears, stating that when the recovery is selected in the next step. Click Yes to continue.
(Sample Image) Warning screen
6 When the Toshiba Recovery Wizard opens and the "Selecting a process" screen displays, select Recovery of Factory Default Software with user's data" option is...
User Guide - Page 66
... When the recovery process is strongly recommended that your work" on page 112. Toshiba does not guarantee successful data back-up your computer be lost during the recovery process...external media before proceeding (see "Backing up your data to begin the recovery. 66
Getting Started
Recovering the Internal Storage Drive
7 The Recovery of Factory Default Software screen
8 Click Next. ...
User Guide - Page 67
... data from the C:\Users using the utilities stored on your computer, press the F12 key when the initial TOSHIBA screen displays. To return the data to your private account, you will need to back up all data will....
1 Make sure the computer is selected in the next step. Getting Started
67
Recovering the Internal Storage Drive
You can access the folders under C:\backup%current date%.
User Guide - Page 68
...your work to external media before executing the recovery (see "Backing up . Toshiba does not guarantee successful data back up your work " on page 112). 8 Click Yes... to continue.
(Sample Image) Warning screen 68
Getting Started
Recovering the Internal Storage Drive
6 When the Toshiba Recovery Wizard opens and the "Selecting a process" screen displays, select Recovery...
User Guide - Page 70
...media. To recover using the utilities on your computer, press the F12 key when the initial TOSHIBA screen displays.
If not, skip to continue.
(Sample Image) Warning screen To recover using the...; 7 32-bit or 64-bit operating system, select one at this time.
70
Getting Started
Recovering the Internal Storage Drive
You can recover the C: drive without affecting other partitions by either...
User Guide - Page 71
A confirmation message displays reminding you that all data on page 112).
Getting Started
71
Recovering the Internal Storage Drive
6 When the Toshiba Recovery Wizard opens and the "Selecting a process" screen displays, select Recovery of Factory Default Software, and then click Next.
(Sample Image) Selecting a process screen 7 The ...
User Guide - Page 72
..., and then press the ENTER key.
4 If your computer, press the F12 key when the initial TOSHIBA screen displays.
You can resize and recover the C: drive using the first method, follow the procedure below. 72
Getting Started
Recovering the Internal Storage Drive
9 Click Next to step 5.
If not, skip to begin the...
User Guide - Page 73
Getting Started
73
Recovering the Internal Storage Drive
5 A warning screen appears, stating that when the recovery is selected in the next step. Click Yes to continue.
(Sample Image) Warning screen
6 When the Toshiba Recovery Wizard opens and the "Selecting a process" screen displays, select Recovery of Factory Default Software with user's data" option is...
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