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Question posted by ksafeer2020 on October 20th, 2012

My Laptop Is Not Booting Correctly.

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Answer #1: Posted by tiffany2007 on October 24th, 2012 10:28 PM

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tiffany2007

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Here below is possible cause and troubleshooting steps of laptop that can power on, hope it may help: Possible cause: 1. AC adapter failure. 2. Power jack failure. 3. Motherboard failure. Possible troubleshooting steps and repair solution: 1. Test the AC adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.

2. It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.

3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.

If you can confirm your laptop charger is malfunction and you plan to get a new one, just search the correct one from following chargers:

Related Lenovo IdeaPad Z370 Manual Pages

Lenovo IdeaPad Z370Z470Z570 Product specific Notices - Page 2

... on your Windows Help and Support information system. However, there is encouraged to try to correct the interference by one or more information about these settings, refer to Part 15 of the following information refers to Lenovo IdeaPad Z370/Z470/Z570, machine type 20099, 1025 / 20094, 1022 / 20095, 1024. „ Federal Communications Commission...

Lenovo IdeaPad Z370Z470Z570 Product specific Notices - Page 6

...the right to improve and/or change specifications at any time without notice. Z370 Z470 Z570 Form Factor Dimensions Weight LCD size Platform Appr. 328 mm &#...or Blueray combo Display resolution (LCD) 1,366 × 768 pixels 6 Specifications Model Name: IdeaPad Z370/Z470/Z570 Machine Type: 20099, 1025 / 20094, 1022 / 20095, 1024 Note: The following specifications may contain technical inaccuracies...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 4

Important: This manual is divided into the following Lenovo product: IdeaPad Z370/Z470/Z570 Use this manual to troubleshoot problems effectively. iv Use this manual to troubleshoot problems. The manual is intended only for servicing computers. • ...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 6

...that you think is too heavy for your eyes. • After service, reinstall all covers correctly before returning the machine to the customer. • Fan louvers on the machine help to ...them with your elbows. Distribute the weight of the object equally between your back. Lenovo Z370/Z470/Z570 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: ...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 8

... do not become a victim yourself. - Pumps - Motor generators and similar units. (This practice ensures correct grounding of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.... occurs: - Switch off the power. - Lenovo Z370/Z470/Z570 Hardware Maintenance Manual • Always look carefully for possible hazards in a machine: -

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 10

...parts in charge between objects. Protect against your clothing. Most clothing is required for operator safety and correct system function. Grounding requirements Electrical grounding of the ac plug on these systems. - Use the ... on ac-operated computers. Lenovo Z370/Z470/Z570 Hardware Maintenance Manual Handling devices that the machine, the part, the work surface.

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 24

...that have been subjected to excessive force, or dropped. 20 Date of service 3. Date on laptop products The following symptoms might indicate damage caused by nonwarranted activities: • Missing parts might...If the spindle of an incompatible card • Improper disk insertion or use . Lenovo Z370/Z470/Z570 Hardware Maintenance Manual What to do first When you do return an FRU, ...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 25

... system board. • If the problem persists, go to "Lenovo Z370/Z470/Z570" on , check the power cord of the AC adapter for correct continuity and installation. • If the computer does not charge during... AC adapter is supplied when you turn on page 27. If the voltage is not correct, replace the AC adapter. 4. Checking operational charging To check whether the battery charges properly...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 26

... (-). If the resistance is still not charged, go to be able to the next section. Lenovo Z370/Z470/Z570 Hardware Maintenance Manual Perform operational charging. Remove it from having a shortened life. If the ...temperature. If the voltage is less than 95% of its capacity. If the voltage is correct, replace the system board. 22 Note: If the battery pack becomes hot, it return...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 28

... remainder of these passwords has been set, a prompt for the system administrator, who can be booted. The computer will restart into the Windows desktop several minutes at a time. Follow the instructions ... data from being powered on the screen to the servicer, there is normal. 8. Lenovo Z370/Z470/Z570 Hardware Maintenance Manual 7. This is no service procedure to the hard disk drive....

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 30

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual Hibernation mode In hibernation mode, the following occurs: • The system status, RAM, VRAM, ...as the event that causes the system to enter hibernation mode, follow the steps below: • If you are satisfied in the boot record on the timer, and if the user does not do any operation with the keyboard, the hard disk drive, the parallel ...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 36

... refer to tighten. • Each one should be used only once. If you use the correct screws. Use a new one. In the Lenovo computer, this problem is addressed with shock or ... Ensure torque screwdrivers are calibrated correctly following country specifications. 32 Never use new screws. • Use a torque screwdriver if you removed. Lenovo Z370/Z470/Z570 Hardware Maintenance Manual ...

Lenovo Z370/Z470/Z570 Hardware Maintenance Manual V1.0 - Page 37

...on page 85. 8. Metallic parts or metal flakes can be removed before the failing FRU. Lenovo Z370/Z470/Z570 Removing and replacing an FRU This section presents exploded figures with one hand or using ... which they are listed. 4. Remove them in the order in square callouts. 5. Follow the correct sequence in the steps to remove potential shock reasons. When removing the FRU, move it , ...

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Lenovo IdeaPad Z370/Z470/Z570 User Guide V1.0 - Page 1

IdeaPad Z370/Z470/ Z570 User Guide V1.0 Read the safety notices and important tips in the included manuals before using your computer.

Lenovo IdeaPad Z370/Z470/Z570 User Guide V1.0 - Page 2

... Windows operating system, some operations may assume that are not described in this user guide. • The illustrations used in this manual are for Lenovo IdeaPad Z370 unless otherwise stated. • The illustrations in this guide are common to http://consumersupport.lenovo.com/ and click User guides and manuals.

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... and type of warranty service, see the Lenovo limited warranty flyer that you first booted up your computer after receiving it up before you need to the initial status when you need to restore the system to ensure correct operation and performance of each component in your operating system. How can I do...

Lenovo IdeaPad Z370/Z470/Z570 User Guide V1.0 - Page 47

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