Use a meter to measure third-wire ground continuity for 0. The power cord should be the type specified in the parts list. Insulation must not be frayed or worn. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations.
Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage. Check for worn, frayed, or pinched cables.
Check that the power-supply cover fasteners screws or rivets have not been removed or tampered with. Any computer part containing transistors or integrated circuits ICs should be considered sensitive to electrostatic discharge ESD. ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
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 is desirable but not required to protect against ESD damage. 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. They are also sold separately as options. The drive is certified in the U.
Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. There are no serviceable parts inside those drives. Do not open. Note the following:. Emits visible and invisible laser radiation when open.
Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Rayonnement laser si carter ouvert.
Some descriptions might not apply to your particular 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. 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:. 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.
The following list provides 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:. The following symptoms might indicate damage caused by nonwarranted activities:. If the data on a hard-disk drive is damaged or accidentally erased, you can restore the software that was shipped with the computer. This software includes the pre-installed operating system, applications, and device drivers.
To restore the pre-installed software, you can use either the Product Recovery program or a Recovery CD.
The Product Recovery program is in the Service Partition, a section of the hard-disk drive that is not displayed by Windows Explorer. Use the Recovery CD if it was provided with the computer. To use the Product Recovery program to restore the pre-installed software, do the following:. Save all files and shut down the desktop.
Turn on the computer. Press F11 quickly; this message is displayed for only a few seconds. Note: If this message does not appear, you can use a Recovery Repair diskette to get access to the Product Recovery program. From the list displayed on the screen, select the operating system you want to recover. Select the recovery options you want, and follow the instructions on the screen. To create the Service Partition and install the preloaded system from the Recovery CD, do the following:.
Boot with the Recovery CD and the boot diskette if required. Note: If the hard-disk drive contains any partitions, you do not receive this message ; go to step 1. Enter Y. The Service Partition is created and loaded with the Product Recovery program files. Note: If you do not want to create the Service Partition, press N key, and then go to step 8. At next window, press Enter to continue. The system automatically reboots during this process.
You may be prompted to change CDs. Continue to step 6 to install preloaded system. Product Recovery program Reinstall the Product Recovery Program?
If you get a message asking which operating system to install, highlight the proper operating system and press Enter. Press Enter to select. Enter the Y at each of the next three windows. Follow the prompts to complete Recovery. If the prompt needed for access to the Product Recovery program does not appear, you can recover it by use of the.
Recovery Repair diskette. Make a Recovery Repair diskette and save it for future use. To make a Recovery Repair diskette:. Shut down and turn off the computer. Attach the external diskette drive to the computer. At the prompt, press F The option to press F11 appears for only a few seconds. You must press F11 quickly. The Product Recovery program main menu appears.
If you are using Windows Professional, you are prompted to select an operating system. This menu does not appear for Windows 98 SE. From the main menu, select System Utilities. Press Enter.
Select Create a Recovery Repair diskette. Follow the on-screen instructions. When the process is completed, label the diskette as the Recovery Repair diskette and save it for future use.
Insert the Recovery Repair diskette into the drive; then turn on the computer. Should the hard-disk drive need to be replaced, you must order a Recovery CD with the hard-disk drive so that you can recover the new hard-disk drive with the pre-installed software when it arrives. If any of these passwords have 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. 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. It it has, it can be used for access to the hard-disk drive. The hard-disk drive can be replaced for a scheduled fee.
If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The systemboard 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. Turn on the computer by pressing and holding F1.
Enter the SVP. Select Password , using the cursor keys to move down the menu. Select Power-On Password. When the Enter New Password field opens, leave it blank and press Enter twice. In the Changes have been saved window, press Enter. Press F10; then, in the Setup confirmation window, select Yes. If User only mode is selected and the user HDP has been forgotten and cannot be made available to the servicer, IBM does not provide any services to reset the user HDPs or to recover data from the hard-disk drive.
Power on the computer by pressing and holding F1. Select Hard-disk x password , where x is the letter of the hard-disk drive. A pop-up window opens. Select Master HDP. Select Yes in the Setup Configuration window. To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation. When the computer enters standby mode, the following events occur in addition to what occurs in screen blank mode:.
Even if you do not set the low-battery alarm, the charge indicator notifies you when the battery is low, and then the computer enters the power-saving mode automatically. This default low-battery behavior is independent of the operating system; so if you have set the low-battery alarm, the computer may not do what you specified.
It chooses either your setting or the default setting, whichever is appropriate. If you are using the ACPI operating system, only the low-battery alarm is available. To cause the computer to return from standby mode and resume operation, do one of the following:. Also, the computer automatically returns from standby mode and resumes operation in either of the following events:. Note: The computer does not accept any input immediately after it enters standby mode.
Wait a few seconds before taking any action to reenter operation mode. Note: If the computer enters the hibernation mode while it is docked to the docking station, do not undock it from the docking station before resuming normal operation. If you do undock it and then try to resume normal operation, you will get an error message, and you will have to restart the system. Also, the computer goes into hibernation mode automatically in either of the following conditions:.
When the power is turned on, the computer returns from hibernation mode and resumes operation. Fn key combinations. Symptom-to-FRU index. Numeric error codes. Error messages Beep symptoms.
No beep symptoms. LCD-related symptoms. Intermittent problems. Undetermined problems. Page 44 Bottom view. Parts list. Recovery CDs For Windows For Windows Miscellaneous parts. Optional FRUs. Common parts list. Power cords system. Page Status Indicators Feature Infrared transfer Sudden physical shock could cause drive errors. If two DIMMs are installed, remove one of 2. If the problem does not recur, return the 3. If the test does not detect the error, run 1.
Page Fn Key Combinations Fn key combinations The following table shows the function of each combination of Fn with a function key. The Fn key works independently from the operating system. The most likely cause is listed first, in boldface type. Page 52 Symptom or error Critical low battery error.
Page 53 Symptom or error Real-time clock error. Allocation error for device. Failing bits: nnnn. Invalid system configuration data.
Operating system not found. Hibernation error. Fan error. One long and two short beeps, and a blank or unreadable LCD. Two short beeps with error codes. Two short beeps with blank screen. Two or more beeps, or a continuous beep. A small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. Page Undetermined Problems Undetermined problems You are here because the diagnostic tests did not identify which adapter or device failed, wrong devices are installed, a short circuit is suspected, or the system is inoperative.
Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In IBM ThinkPad computer, this problem is addressed with special nylon-coated screws that have the following characteristics: v They maintain tight connections. Page Retaining Serial Numbers v Make sure you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table.
Never use a screw that you removed. Use a new one. Make sure the screws are tightened firmly. Page 60 unique IDs until the year A. No two computers in the world have the same number. When you replace the system board, you must set the UUID on the new system board as follows: 1. Install the ThinkPad hardware maintenance diskette version 1. Be sure to observe the following general rules: 1. Do not try to service any computer unless you have been trained and certified.
An untrained person runs the risk of damaging parts. The use of an incorrect battery can result in ignition or explosion of the battery. Pivot the DIMM until it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily. Page 66 Note: The illustration shows the combo card. Step 4 depends on the card type. Disconnect either A , B , or both. The hard-disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data.
Before removing the drive, have the user make a backup copy of all the information on the drive if possible. ThinkPad A22m wireless models Page Ultrabay Device Ultrabay device Any of several devices can be inserted into the Ultrabay The procedure for installing and removing is the same for every device. Note: When you release the switch in step 1 , the lever pops out.
Pull the lever a little in step 2 to release the device from the bay. Push the release button again into the slot, then the dummy card pops out. Page 75 When installing: When installing the keyboard, do as 1. Make sure that the keyboard edges, shown as A , B , and C in the figure, are under the frame.
Press the Y key 1 to connect the keyboard to the connector on the underside of the key; This is a sing This is a Item : MBPC Not Available. There are no products in this category ID : Shop Secure Online We are dedicated to delivering a safe online shopping experience.
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