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Improper handling of a system board can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: v Do not drop a system board or apply any excessive force to it. How to use error message 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. 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. 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. Using eSupport For Key Commodities Examples - hard disk drive, system board, microprocessor, LCD, and memory v eSupport can be used to view the list of key commodities built in a particular machine serial this is the same record found in PEW.
Type in the model type and serial number. The list of service parts by description, with applicable machine type model and FRU will be displayed. RoHS requirements must be implemented on Lenovo products placed on the market after June Products on the market before June are not required to have RoHS compliant parts. If the original FRU parts are non compliant, replacement parts can also be non compliant.
Products marketed before June Note: A direct substitution is a part with a different FRU part number that is automatically shipped by the distribution center at the time of the order. Some descriptions might not apply to your particular computer. Before you go to the checkout guide, be sure to read the following important notes. Important notes: v Only certified trained personnel should service the computer.
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. 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.
Checkout guide Use the following procedures as a guide in identifying and correcting problems with the ThinkPad computer. 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. This section is an overview of the procedure. For some possible configurations of the computer, PC-Doctor might not run correctly. Turn on the computer. You can start the 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.
Instead of pressing Enter, click the left button. Insert the PC-Doctor disk into the diskette drive; then power on the computer. On the first screen, select the model and press Enter. Follow the instructions on the screen. The main panel of PC-Doctor appears. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. Its exact form depends on the model. Note: PC-Doctor menu does not mean the formal support device list.
Some unsupported device names may appear in the PC-Doctor menu. Notes: v In the Keyboard test in Interactive Tests, the Fn key should be held down for at least 2 seconds; otherwise, it cannot be sensed. Run the applicable function test. If there is a problem, PC-Doctor shows messages describing it. 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. PC-Doctor for Windows This product is designed to help you troubleshoot and resolve problems related to your computer.
Remove the battery pack. Connect the ac adapter. Check that power is supplied when you turn on the computer. Turn off 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.
Unplug the AC adapter cable from the computer. 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: v Replace the system board. 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 Meter 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 Meter 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. To check the battery pack, do the following: 1. Note: Recharging will take at least 3 hours, even if the indicator does not turn on. The resistance must be 4 to 30 K. If the resistance is not correct, replace the battery pack.
If the resistance is correct, replace the system board. Checking the backup battery Do the following: 1. 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. In this case, you must use the recovery discs for the computer. Order the recovery discs and the drive at the same time so that you can recover the new drive with the pre-installed software when they arrive. To install the factory contents by using Product Recovery discs, do the following:. Note: Recovery takes several hours.
The length of time depends on the method you use. If you use recovery discs, recovery takes at least five hours. Insert the Rescue and Recovery Disk1 of 1 into the optical drive, then restart the computer. This will take several minutes. A message giving a warning that USB devices used in recovery must be connected when the computer is turned on appears. Click OK. Select Restore my hard drive to the original factory state, and click Next.
A warning appears, click Yes. Then next menu appears. Select I do not want to save any files and click Next. Following menu appears with a warning, select Next. A warning appears not to power down the computer during the recovery process.
One more warning appears saying that recovery is intended only for unrecoverable system problems. Previous menus may remain on the screen, but the Predesktop installer begins copying files. When this completes, the computer will restart and a window will ask you to insert a Product Recovery Supplemental Disk, if you have one. Press No. You will then be prompted to insert Product Recovery Disk 1 into the optical drive. In similar fashion, you will be prompted to insert the remaining recovery discs until all the files are copied.
IMZ files are processed. A total progress bar allows you to audit this process, which will take about 8 minutes. The final recovery disc may be safely removed during this time, but may also be left in the optical drive since it is not bootable.
You will then be prompted to restart the computer. Select Yes. A warning window appears, giving you one last chance to stop the restart, but disappears automatically after about 5 seconds. File processing continues in DOS full screen mode for about two minutes and the computer restarts to the Windows desktop.
No user intervention is required and should be avoided after this point. Windows setup continues on the desktop and DOS window for IBM system setup, with progress measured by a Factory Preinstallation window on the right side of the screen.
The processes updating installed softwares. A warning that antivirus software is not installed appears repeatedly in the system tray, but this should be ignored. The entire process at desktop takes about 25 minutes. Then the computer restarts, does some more DOS full screen processing, and restarts again to a Windows desktop where factory preinstallation continues for about 12 more minutes, another restart to a DOS screen and then back to the Windows splash screen and back to the desktop for more preinstallation.
If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted. Power-on password A power-on password POP protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted.
The system administrator then provides the user HDP to the system user. If it has, it can be used for access to the hard disk drive. If no master HDP is available, neither Lenovo nor Lenovo authorized servicers provide any services to reset either the user or the master HDP, or to recover data from the hard disk drive.
The hard disk drive can be replaced for a scheduled fee. Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.
Remove the backup battery. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt 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 servicer: 1. For the other models, enter the POP.
If the Using Passphrase item is displayed in the menu, this function is available on the ThinkPad computer. Select Security, using the cursor directional keys to move down the menu. Select Password. Select Power-On Password.
In the Changes have been saved window, press Enter. Press F10; then, in the Setup confirmation window, select Yes. How to remove the hard-disk password Attention: If User only mode is selected and the user HDP has been forgotten and cannot be made available to the servicer, neither Lenovo nor Lenovo authorized servicers provide any services to reset the user HDPs or to recover data from the hard disk drive.
For the other models, enter the master HDP. If Using Passphrase item is displayed in the menu, this function is available on the ThinkPad computer. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens. Select Master HDP. Press F Ask your question here. Provide a clear and comprehensive description of the issue and your question. The more detail you provide for your issue and question, the easier it will be for other Lenovo ThinkPad T61 owners to properly answer your question.
View the manual for the Lenovo ThinkPad T61 here, for free. This manual comes under the category Keyboards and has been rated by 10 people with an average of a 7. This manual is available in the following languages: English. Below, you will find the most frequently asked questions about the Lenovo ThinkPad T Is your question not listed?
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