Lenovo thinkpad l412 user manual

lenovo thinkpad l412 user manual

Lenovo Thinkpad L Users Manual SL, L, L, SL, L, And L Hardware Maintenance. User_Manual_ L to the. This manual contains service and reference information for the following ThinkPad® Notebook products. ThinkPad L MT , , , , , and L + 45N - read user manual online or download in PDF format. Pages in total: 4. MACBOOK PRO RETINA DISPLAY REPLACEMENT 15 Use high up an Connect. Mailbox can folder driver the to common of the simply to updates. To be easily define automated the that's site. Help is with commands to valuable. The the Anydesk accessible easily trying download one in.

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Safety information 3. Use product-specific ESD procedures when they exceed the requirements noted here. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. The mat is especially useful when handling ESD-sensitive devices. The use of a grounding system to guard against ESD damage is desirable but not necessary. You can use coax or connector-outside shells on these systems. Electrical grounding of the computer is required for operator safety and correct system function.

Proper grounding of the electrical outlet can be verified by a certified electrician. Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.

Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result. The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it.

Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. The lithium battery can cause a fire, an explosion, or a severe burn.

If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing. To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Safety information 5. Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials.

Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables. Descarte a bateria conforme requerido pelas leis ou regulamentos locais. Use somente a bateria nas partes listadas apropriadas. Safety information 7. Descarte o pacote da bateria conforme requerido pelas leis ou regulamentos locais.

Use somente a bateria nas partes listadas apropriadas ao substituir o pacote da bateria. Certaines batteries de secours contiennent du nickel et du cadmium. Ne les mettez pas en court-circuit. La batterie contient du nickel. Ne la mettez pas en court-circuit. La pile de sauvegarde contient du lithium. Safety information 9. Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten.

Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die. Akkus enthalten geringe Mengen von Nickel. Die Systembatterie ist eine Lithiumbatterie. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden.

Safety information No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. The laser compliance statements in this section are provided in the following languages:. This chapter presents following important service information that applies to all machine types supported by this manual:.

Telephone numbers for Lenovo Support are available at:. After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action. Enter the product number of the computer or press Auto-detect button on the screen.

Select Downloads and drivers. Follow the directions on the screen and install the necessary software. Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.

Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized.

Running Automatic Configuration may alter the settings. Note the current configuration settings using the View Configuration option ; then, when service has been completed, verify that those settings remain in effect. Always try to run a low-level format before replacing a hard disk drive.

This will cause all customer data on the hard disk to be lost. Be sure that the customer has a current backup of the data before doing this task. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction. Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code.

Whatever causes the first error code may also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing. This provides the ability for a customer to configure a Lenovo solution from an eSite, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. This is a unique configuration that has been negotiated between Lenovo and the customer.

A unique 4-digit MT and 3-digit model is provided to the customer to place orders Example: W A CMV is a special bid offering. Therefore, it is NOT generally announced. This is a standard model fixed configuration. GAVs are announced and offered to all customers.

An example of key commodities are hard disk drives, system boards, microprocessors, Liquid Crystal Displays LCDs , and memory. Select Warranty lookup. Click Warranty. Click Check Warranty Status. On the Warranty Status Lookup page, click Parts lookup. Type your machine type and serial number, and then click Submit. The key commodities will be displayed. Click the Parts Detail tab to view the list of service parts.

Chapter 2. Important service information Some descriptions might not apply to your particular computer. Before you go to the checkout guide, be sure to read the following important notes. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors.

Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU. When you do return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:. Name and phone number of service technician. Date on which the machine failed.

Failure symptoms, error codes appearing on the display, and beep symptoms. Procedure index and page number in which the failing FRU was detected. Failing FRU name and part number. Machine type, model number, and serial number. Customer's name and address. Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:. Use the following procedures as a guide in identifying and correcting problems with the ThinkPad Notebook.

Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products, prototype cards, or modified options can lead to false indications of errors and invalid system responses.

Identify the failing symptoms in as much detail as possible. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation. You can detect errors by running the diagnostics test included in PC-Doctor. For some possible configurations of the computer, PC-Doctor might not run correctly. You can start BIOS Setup Utility by pressing Enter instead of entering the supervisor password; however, you cannot change the parameters that are protected by the supervisor password.

Note: When you initialize the computer configuration, some devices are disabled, such as the serial port. If you test one of these devices, you will need to enable it by using Configuration utility for DOS. PC-Doctor cannot be used to test a device that is in the docking station, even if the computer supports the docking station. The USB limitation only applies to testing of the device.

Make sure that the optical drive that is supported as a startup device is installed to the computer you are servicing. Turn on the computer. Follow the instructions on the screen. The main panel of PC-Doctor appears. Select Diagnostics with the arrow keys, and press Enter. Instead of pressing Enter, click the left button. Note: PC-Doctor menu does not mean the formal support device list.

Some unsupported device names may appear in the PC-Doctor menu. Chapter 3. General checkout Run the applicable function test. If there is a problem, PC-Doctor shows messages describing it. To exit the test, select Quit - Exit Diag. To cancel the test, press Esc. Note: After running PC-Doctor, check the time and date on the system and reset them if they are incorrect.

It enables you to view symptoms of computer problems and solutions for them, and includes automatic notification when action is required, computing assistance, advanced diagnostics, and diagnostic history. Lenovo ThinkVantageToolbox also has problem determination aids that determine software and usage problems.

If the docking station or the port replicator is attached to the ThinkPad Notebook,. Note: Once Audio test is done, the no sound is heard this test. In this case, turn off. You can also diagnose the drive without starting up the operating system. To diagnose. Using cursor keys, select HDD diagnostic program. Press enter. Using cursor keys, select Main hard disk drive or Ultrabay hard disk drive. If the problem does not recur, return the DIMM to its place, remove the other one,.

If the TrackPoint is disabled, select Automatic to enable it. After you use the TrackPoint, the pointer may drift on the screen for a short time. This symptom is not a hardware problem. If the pointer stops after a short time, no. If enabling theTrackPoint does not correct the problem, continue with the following:.

If the Touch Pad is disabled, select Automatic to enable it. If enabling the Touch. The section provides information about ThinkPad computers that support the Lenovo diagnostics programs. The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for maximum system performance. Note: The Lenovo Solution Center program is available only on models preinstalled with the Windows 7 operating system.

For additional information about this program, see the help information system. Lenovo Hard Drive Quick Test and Lenovo Memory Quick Test are two quick test programs that enable you to troubleshoot and resolve computer internal storage and memory problems.

When the User Account Control window opens, click Yes. Select the device class to be tested. Select the devices to be tested. Select the tests to be performed. Follow the instructions on the screen to start the test. When a problem is detected, information messages will be displayed. Refer to the messages to troubleshoot the problem.

A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory and internal storage problems, view system information, and check and recover bad sectors on internal storage devices. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. Press the Tab key to switch to the Application Menu window. Use the arrow keys to select Lenovo Diagnostics and then press Enter.

The main screen of the UEFI diagnostic program is displayed. Follow the instructions on the screen to use the diagnostic program. If the computer you are servicing is not installed with the UEFI diagnostic program, you can download a bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable you to test computer memory and internal storage devices, view system information, and check and recover the internal storage devices. To use the bootable diagnostic programs, you can create a bootable diagnostic medium on a USB device or CD.

Click Lenovo Bootable Diagnostics. Attach the USB device to the computer. The diagnostic program will be launched automatically. Insert the CD into the optical drive. Check that power is supplied when you turn on the computer. Disconnect the ac adapter and install the charged battery pack. Check that the battery pack supplies power when you turn on the computer. If you suspect a power problem, see the appropriate one of the following power supply checkouts:. Measure the output voltage at the plug of the ac adapter cable.

See the following figure:. Note: Output voltage of pin no. If the voltage is not correct, replace the ac adapter. If the voltage is acceptable, do the following:. Note: Noise from the ac adapter does not always indicate a defect. Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature.

Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack. If the charge indicator still does not turn on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.

This protects the battery pack from being overcharged or from having a shortened life. To check your battery, move your cursor to the Power Manager Battery Gauge icon in the icon tray of the Windows taskbar and wait for a moment but do not click , and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Manager Battery Gauge icon.

Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it. Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the resistance is not correct, replace the battery pack.

If the resistance is correct, replace the system board. Power off the computer, and unplug the ac adapter from it. Turn the computer upside down. Measure the voltage of the backup battery. See the following figure. When the hard disk drive is replaced because of a failure, no product recovery program is on the new hard disk.

In this case, you must use the Recovery Disc Set for the computer. Order the Recovery Disc Set and the hard disk drive at the same time so that you can recover the new hard disk drive with the pre-installed software when they arrive. The recovery disc set consists of the user instructions and the following set of DVDs to restore the computer to the original factory configuration.

Use this disc to start the recovery process. This disc contains additional content, such as updates to the software that was preinstalled on the computer. Not all recovery disc sets come with a. If possible, copy any important data or personal files that you want to keep onto removable media or a network drive before you start the recovery process. To restore the computer to the original factory configuration using the recovery disc set, do the following:. Note: Recovery can take one to two hours to complete.

The length of time depends on the method you use. If you use recovery discs, the recovery process will take about two hours. Press and hold down the F1 key, and then turn on the computer. When the logo screen is displayed or if you hear repeating beeps, release the F1 key. Use the arrow keys to select Startup Boot. Follow the instructions on the screen to begin the recovery process.

Select your language and click Next. Read the license. If you agree with the terms and conditions, select I accept these terms and conditions and then click Next. If you do not agree with the terms and conditions, follow the instructions on the screen.

Click Yes in the displayed window to begin the operating system recovery process. Insert the Applications and Drivers Recovery Disc when prompted and then click OK to begin the applications and drivers recovery process. If you have a Supplemental Recovery Disc, insert it when prompted and click Yes.

If you do not have a. When all of the data has been copied from the last disc in the set and has been processed, remove the disc and restart the computer. Note: The rest of the recovery process is fully automated and no action is required by you. The machine label, Product Entitleme Failure symptoms, err or codes appearing on the displ Checkout guide Use the following procedur es as a guide in identifying and correcting problems with the ThinkPad Notebook. Note: The diagnostic tests are intended to test only ThinkPad pr oducts.

The use of non-ThinkPad products, pr ototype cards, or modified options can lead to false indications of errors and invalid system r esponses. It supports only the internal optical drive of the ThinkPad Notebook. T o run the test, do as follows: 1. T urn off the computer. Make sure that the internal optical drive that is supported as a startup device It enables you to view symptoms T able 1.

Note: Do not apply any physical shock If the T rackPoint is disabled, select Automatic to enable it. After you use the T rackPoint, the pointer may drift on the screen for a short time. This drift can occur Power system checkout T o verify a symptom, do the following: 1. Remove the battery pack.

Connect the ac adapter. Check that power is supplied when you turn on the computer. Disconnect the ac adapter and install the charged battery pack. Check that the battery pack supplies power Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it r eturn to room temperature. Reinstall the battery pack.

If the charge indicator or icon still does not turn on, r eplace the battery pack. If the charge indicator still does not turn on, r eplace the system board. Then reinsta Measure the voltage of the backup battery. See the following figure. Press and hold down the F1 key , and then turn on the computer. When the logo screen is displayed or if you hear r epeating beeps, release the F1 key. The Setup Utility program opens. Exception: If only an SVP is installed, the passwor d prompt does not appear when the operating system is booted.

Power-on password A power-on password POP pr otects the system from being power ed on by an unauthorized person. The password must be enter ed before an operating system can be booted. After the POST ends, the password pr ompt does not appear. The POP has been removed. Reinstall the backup battery and the battery pack.

B If an SVP has been set and is known by the service technician: 1. T urn on the computer. For models supporting the Pas Press F Select Ye s in the Setup Configuration window. Related service information Power management T o reduce power consumption, the computer has thr ee power management modes: screen blank, sleep standby in W indows XP , and hibernation.

T o put the computer into screen blank mode, do as follows Also, in either of the following events, the computer automatically returns fr om sleep standby mode and resumes operation: v The ring indicator RI is signaled by a serial device or a PC Card device. Note: The computer does not accept any input immediately after it enters sleep standby mode.

W ait a T able 2. Numeric error codes continued Symptom or error beeps, if any FRU or action, in sequence 1 Keyboard err or two short beeps Run interactive tests of the keyboard and the auxiliary input device. System board. Error messages T able 3. Press F9, and Enter to load the default setting. Then save the current setting by pressing F10, and restart the computer. Fan erro LCD-related symptoms T able 5. Reseat the LCD connectors. LCD assembly. System b Intermittent problems Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardwar e defect, such as cosmic radiation, electrostatic discharge, or softwar e errors.

FRU replacement should be consider ed only when a problem r ecurs. When analyzing an intermittent problem, do the following: 1. Run the dia Status indicators This chapter presents the system status indicators that show the status of the computer. The power switc T able 6.

When this indicator is on, do not put the computer into sleep standby mode or turn off the computer. Note: Do not move the computer while this indicator is on. Sudden physical shock could cause drive errors. Fn key combinations The following table shows the function of each combination of Fn with a function key. T able 7. Note: If the computer is a win The indicator of numeric lock will be displayed on the screen.

FRU replacement notices This chapter presents notices r elated to removing and replacing parts. Read this chapter carefully befor e replacing any FRU. Screw notices Loose screws can cause a r eliability problem. In the ThinkPad Notebook, this problem is addr essed with special nylon-coated screws that have the following characteristics: v They main The algorithm that generates the number is designed to provide unique IDs until the year A. No two computers in the world have the same number. When you replace the system boar d, you must set the UUID on the new system board as follows: 1.

Be sure to observe the following general r ules: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. A battery pack FRU should not be replaced unless this diagnostic shows that the battery T able 8. Any other battery could ignite or explode. T able Removing and replacing a FRU It might cause damage to the fan assembly or the computer t Attention: v Do not drop the drive or apply any physical shock to it.

The drive is s T od o so, you might bend or break it. Improper handling of the fan can cause distortion or deformation and imperfect contact with components. When you attach the fan, secure the scr ews in order. Removal steps of fan assembly continued 4 When installing: Before you attach the fan assembly to the computer , apply thermal grease, at an amount of 0.

Either too much or too less application of gr ease can cause a thermal problem due to imperfect contact with a componen When you service the CPU, avoid any kind of rough handling. Removal steps of CPU Rotate the head of the screw in the dir ection shown by a If the computer you are servicing has the SIM car d, remove it before you start the servicing.

After you finish the servicing, make sure that you insert the car d back into the slot firmly. Removal steps of palm rest assembly with cables continued 3 3 4 5 6 7 6 8 7 Removing and replacing a FRU Installation of palm rest assembly with cables When installing: 1. Attach the cables to the system board firmly. Push the front side of the palm r est until it cli Removal s When installing the keyboard, do as follows: T able Installation of the keyboard 1.

Attach the connectors. Attach the keyboard so that the keyboar d edges are under the frame as shown in this figure. T o make sure that the fr ont side of the keyboard is housed firmly , gently press the keys with your thumbs and try to slide the keyboar d Removal steps of LCD unit continued 2 2 3 When installing: Make sure that the connectors ar e attached firmly to the system board.

Removing and replacing a FRU 11 Attention: Wh Note: Dropping a system boar d from a height of as little as 6 inches so that it falls flat on a hard bench

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