Toshiba Satellite P755 Support Question
Toshiba Satellite P755 Support Question
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Question posted by lanmo on June 12th, 2014
Toshiba Satellite P755-s5215 Wont Boot
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Current Answers
Answer #1: Posted by freginold on July 16th, 2014 6:12 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
Often when a laptop won't power on, it's 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.
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 P755 Manual Pages
User Guide - Page 1
Satellite®/Satellite Pro® P700 Series User's Guide
If you need assistance: ❖ Toshiba's Support Web site
support.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 180 in this guide. GMAD00274010 03/11
User Guide - Page 2
... the data. Model: Satellite®/Satellite Pro® P700 Series...
Recordable and/or ReWritable Drive(s) and Associated Software Warranty
The computer system you to lead, a chemical known to the State of California to do so, this product will expose you purchased may lose data or suffer other reproductive harm. TOSHIBA AMERICA INFORMATION SYSTEMS, INC. ("TOSHIBA...
User Guide - Page 3
....
❖ Consult the dealer or an experienced radio/TV technician for help. ACCORDINGLY, TOSHIBA, ITS AFFILIATES AND SUPPLIERS DISCLAIM ANY AND ALL LIABILITY ARISING OUT OF THE USE OF ..., nuclear facilities or systems or any "critical applications."
If this equipment not expressly approved by Toshiba or parties authorized by one or more of the following measures:
❖ Reorient or relocate...
User Guide - Page 4
... company.
A plug and jack used to the following information is subject to determine the number of 0.3). The digits represented by the ACTA. Contact either: ❖ Toshiba's Support Web site at (949) 859-4273
Industry Canada Requirement
This Class B digital apparatus complies with the applicable FCC part 68 rules and requirements adopted...
User Guide - Page 5
...transmission, the date and time it is resolved.
or an authorized representative of Toshiba, or the Toshiba Customer Support Center within the United States at (800) 457-7777 or Outside ...a computer or other number for repair or standard limited warranty information, please contact Toshiba Corporation, Toshiba America Information Systems, Inc. If the equipment is causing harm to the telephone ...
User Guide - Page 7
...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.
Bluetooth® and ...interference with any such problem, immediately turn off your network connection. Wireless Interoperability
The TOSHIBA Wireless LAN Mini PCI Card products are allocated as defined by the Institute of Electrical ...
User Guide - Page 8
... manner that comes with the following radio frequency and safety standards. Nevertheless, the TOSHIBA Wireless LAN Mini PCI Card shall be installed and used in strict accordance with any... electromagnetic energy emitted by the proprietor of the building or responsible representatives of the TOSHIBA Wireless LAN Mini PCI Card is perceived or identified as described in a specific ...
User Guide - Page 9
... co-located with an 802.11a radio device.
Equipment (or its operation in excess of Health Canada limits for harmful interference to co-channel Mobile Satellite systems. High power radars are allocated as primary users of this device. Si le matriel (ou son antenne d'emission) est installe a l'exterieur, il doit faire...
User Guide - Page 10
... products with a crossed-out wheeled bin with design engineers, suppliers, and other countries such as the United States. Although the initial emphasis is in Europe, Toshiba is carrying the CE-Mark in accordance with the Information: requirements of the Low Voltage Directive 73/23/EEC, the EMC Directive 89/336/EEC...
User Guide - Page 12
... from
2,400 MHz to Other Radio Stations.
2. Sticker
Please put the following sticker on this equipment.
(1) (2) (3)
2.4DSOF4
(4)
1 2.4: This equipment uses a frequency of this product. Contact TOSHIBA Direct PC if you have problems with any of emissions.
3.
The frequency bandwidth of this equipment may operate within the same range as this equipment...
User Guide - Page 29
...Satellite, Satellite Pro, and eco Utility are registered trademarks of such marks by Toshiba is under the AVC, the VC-1 and the MPEG-4 Part 2 Visual patent portfolio licenses for any other countries.
Bluetooth word mark and logos are trademarks or registered trademarks of the BD Association. and any use of Toshiba... www.mpegla.com. and/or Toshiba Corporation. Atheros is included with ...
User Guide - Page 64
... see "Restoring from recovery DVDs/media" on your computer, press the F12 key when the initial TOSHIBA screen displays. If not, skip to step 5.
5 A warning screen appears, stating that when ...choice of Windows® 7 32-bit or 64-bit operating system, select one at this time.
The boot menu appears.
3 Using the arrow keys to continue.
(Sample Image) Warning screen To recover the original ...
User Guide - Page 66
...data into the C:\backup%current date% folder. Toshiba does not guarantee successful data back-up your computer, press the F12 key when the initial TOSHIBA screen displays. As a result, any user can...recommended that the internal storage drive has been recovered.
10 Click Finish to this time.
The boot menu appears.
3 Using the arrow keys to scroll down, select the HDD Recovery option, ...
User Guide - Page 69
...a D: drive), those partitions will remain intact and any information on your computer, press the F12 key when the initial TOSHIBA screen displays. To recover using the second method, see "Backing up your work to step 5.
5 A warning screen ...or by either using the utilities stored on the C: drive.
The boot menu appears.
3 Using the arrow keys to an external power source via the AC adaptor.
User Guide - Page 72
... to scroll down, select the HDD Recovery option, and then press the ENTER key.
4 If your computer, press the F12 key when the initial TOSHIBA screen displays. The boot menu appears.
3 Using the arrow keys to continue.
(Sample Image) Warning screen To recover using the second method, see "Restoring from recovery DVDs...
User Guide - Page 77
...then press the Enter key.
5 A warning screen appears, stating that you have created intact The boot menu displays.
4 Using the arrow keys, select the DVD option or the USB Flash option, ...flash drive to your computer.
3 Turn on page 112. Click Yes to continue.
6 When the Toshiba Recovery Wizard opens and the "Selecting a process" screen displays, select Recovery of Factory Default Software, ...
User Guide - Page 78
... data and partitions from the drive.
8 Follow the on your computer, press the F12 key when the initial TOSHIBA screen displays. Using the arrow keys, select the DVD or USB Flash option on the boot menu, depending on which type of media you want to recover the C: drive to your computer, and...
User Guide - Page 164
... or Normal settings.
To access it:
❖ Click Start, All Programs, TOSHIBA, Utilities, and then HWSetup, or click the TOSHIBA Hardware Settings icon in which your computer searches the drives for the operating system
You can also manually choose the Boot Setting by pressing the arrow keys, then pressing the Enter key.
❖...
User Guide - Page 165
...-Allows you to turn on the computer when opening the display panel while the computer is a quick-booting system, you must press the keys immediately after starting in display
NOTE
When the computer restarts, it ...settings for the built-in Sleep mode, press Fn + F5. Utilities
TOSHIBA Hardware Setup
165
❖ Panel open/Power on-Allows you to enable or disable USB Legacy Emulation
User Guide - Page 172
...use of your computer. Using the Fingerprint Authentication Utility
To access the Fingerprint Authentication Utility, click Start, All Programs, TOSHIBA, Utilities, and then select the Fingerprint Utility. If you delete your fingerprint template data before starting fingerprint enrollment. The ... also be used to replace the keyboard-based user password authentication system when booting up.
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