Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.
Page 12 This practice ensures correct grounding of the units. Page Safety Inspection Guide Safety inspection guide The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. Grounding requirements 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. Safety notice 1 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.
Page 16 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. 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. Page 19 Safety notice 5 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. There are no serviceable parts inside those drives. Do not open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
Page 24 ThinkPad T and W A unique 4-digit MT and 3-digit model is provided to the customer to place orders Example: W Page Using Esupport Lookup. 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.
Page 30 ThinkPad T and W Page Checkout Guide 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.
You can detect errors by running the diagnostics test included in PC-Doctor. This section is an overview of the procedure. Page 35 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. Page Power System Checkout 4. 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. Page Checking Operational Charging 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. Page 40 ThinkPad T and W Page Passwords 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. Turn off the computer. Remove the battery pack. Page 44 Enter New Password field blank, and press Enter twice. Press F Select Yes in the Setup Configuration window. Page Power Management Power management To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation.
Page Hibernation Mode When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive. System board. Charge the battery pack. Page 49 Table 1. Numeric error codes continued Symptom or error System battery error—System battery is dead.
Remove the WAN card that you installed. Page Error Messages Error messages Table 2. Error messages Symptom or error Device address conflict. Allocation error for device. Failing bits: nnnn. Invalid system configuration data. Hibernation error. Fan error.
Thermal sensing error. Cannot boot from any device. FRU or action, in sequence 1. The power-on password prompt appears. The hard-disk password prompt appears. Reseat the LCD connector. LCD assembly. The presence of 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. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is as follows: Table 5.
System board b. Specifications Feature Page 59 Green: The computer is connected to the ac power supply. Blinking green: The computer is entering standby mode or hibernation mode, or is resuming normal operation. Blinking green: A Serial Ultrabay Slim device is in the process of being detached.
Using cursor keys, select HDD diagnostic program. Press enter. Using cursor keys, select Main hard disk drive or Ultrabay hard disk drive. Press Enter to start the diagnostic program. Make sure that all of the screws are tightened firmly. 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.
From the main menu, select 4. Assign UUID. A new UUID is created and written. If a valid UUID already exists, it is not overwritten. Page 69 If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system.
If the system board is inoperable, this will not be possible. Page Battery Pack 2 , remove the battery pack in the direction shown by arrow When installing: Install the battery pack along the slide rails of the slot. Then make sure that the battery release lever is in the locked position. In step 2 , pull the lever a little to release the device from the bay.
Otherwise the drive cannot be installed properly. Page Beep Symptoms Beep symptoms Table 3. One long and two short beeps, and a blank or unreadable LCD.
Two short beeps with error codes. Two short beeps and a blank screen. Three short beeps, pause, three more short beeps, and one short beep. Page Intermittent Problems Intermittent problems Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs. Page Specifications Table 7. Page 57 Table 7.
Specifications continued Feature Description Internal modem v Page 59 Table 8. Blinking green: Data is being transmitted. This indicator is on status when Bluetooth wireless is on and not in suspend mode. Page 60 Table 8. Blinking green: A Serial Ultrabay Slim device is in the process of being detached. Table 9. Page 62 Table 9. Page Fn Key Combinations Fn key combinations The following table shows the function of each combination of Fn with a function key.
Table Lock your computer. Select a power scheme that has been created by Power Manager. When you press this combination, a panel for selecting a power scheme appears. Page 64 Table Page 65 Table Read this section carefully before replacing any FRU.
Screw notices Loose screws can cause a reliability problem. In the ThinkPad computer, this problem is addressed with special nylon-coated screws that have the following characteristics: v They maintain tight connections. Page 68 When you replace the system board, you must set the UUID on the new system board as follows: 1.
From the main menu, select 4. Assign UUID. A new UUID is created and written. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine.
The machine does not need to be disassembled to check for the ECA application. 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. Any other battery could ignite or explode. Removal steps of battery pack Unlock the battery release lever 1. Holding the battery release lever in the unlocked position 2 , remove the battery pack in the direction shown by arrow When installing: Install the battery pack along the slide rails of the slot.
Removal steps of Serial Ultrabay Slim device When you release the switch in step 1 , the lever pops out. The hard disk drive is sensitive to physical shock. Page 74 Table Otherwise the drive cannot be installed properly. If the fingerprint reader has any defects, you can replace it by the procedures given in this section, which are the same for a palm rest with or without a fingerprint reader.
Page 76 Table Removal steps of palm rest continued When installing: When you attach the palm rest, do as follows: Table Installation of the palm rest 1. Attach the fingerprint reader connector firmly to the system board. Attach the palm rest so that the two projections of the palm rest a firmly fit into the guide holes of the keyboard bezel as shown in this figure.
Page 77 Table Installation of the palm rest continued 3. Push the front side of the palm rest until it clicks into place. Close the LCD cover and turn the computer over. Then fasten the four screws to secure the palm rest. Removal steps of keyboard Step Icon Lift the keyboard a little in the direction shown by arrow 2 , and then detach the connector 3.
Page 80 Table Removal steps of keyboard continued When installing: Make sure that the keyboard edges a are under the frame as shown in this figure. Page Modem Daughter Card Mdc Removal steps of MDC Page 82 Table When installing: Make sure that the modem connector and the connector on the underside of the card are attached firmly. Page 84 Table Page Screw Quantity Table Page 90 Table Removal steps of keyboard bezel continued In step 2 , release the wireless antenna cables from the cable guide.
Step In step 5 , detach the claws. Then remove the keyboard bezel in the direction shown by arrow 6. When installing: Make sure that all the claws are attached firmly. Page 92 Table If the computer you are servicing is the wireless WAN-ready model, put the cables in the cable holders and secure them with tape as shown in this figure.
Page 94 Table Removal steps of speaker assembly continued Cable routing: Make sure that the speaker connector is attached firmly, and the cables are routed as in this figure. Page 96 Table Removal steps of fan assembly continued Step In step 5 , release the wireless antenna cables from the cable guide of the fan assembly. Page 97 Table Installation of the fan assembly When installing: v 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 grease can cause a thermal problem due to imperfect contact with a component. Page 98 Table Installation of the fan assembly continued v When attaching the fan assembly to the frame, take care not to damage the heat sink and the cable guides b of the fan assembly.
Page Table Removal steps of LCD assembly continued When installing: 1. Route the antenna cables along the cable guides and secure them with the tapes. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.
Removal steps of base cover and USB sub card with cable continued Attention: Before step 7 , be sure that the Serial Ultrabay Slim device eject lever has not popped out. It must be housed in its position as shown in the figure a. Page Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: Product label Non-mercury label Note: If the computer you are servicing is an LED-backlight LCD model, you need to paste this label so that the notice for mercury on the product label is covered.
Removal steps of structure frame continued Remove the AC power jack cable a. When installing: Make sure the connector is attached firmly, and that the cable is routed as in the figure above. Remove the CPU support plate. Removal steps of structure frame continued Step In step 9 , loosen the hex screws. When installing: When attaching the system board to the frame, adjust the placement with the small projection a.
Then secure the system board with the screws. Page System Board And Expresscard Slot Assembly System board and ExpressCard slot assembly Important notices for handling the system board: When handling the system board, bear the following in mind.
When installing: Make sure that the connector of the Express Card slot assembly is attached to the system board firmly. Detach the LCD rear cover a little as shown in step 3 of this figure, and detach the rear edge of the LCD rear cover 4.
Removal steps of BDC Removal steps of antenna assembly continued ThinkPad T and W Page Parts List Parts list This section contains following lists of the service parts. Parts list—Overall continued 1. Parts list—Overall continued Blu-ray drive, 9. Parts list—Overall continued Thermal device and fan Discrete v all v all v all v all v all v all v all v all v all v all v all v all v all Palm rest assembly without fingerprint reader v CTO, 2Vx, 4Bx, 4Cx, 4Dx v CTO v CTO RoHS 91P Page Parts list— Page Keyboard Keyboard Table Page Miscellaneous Parts Miscellaneous parts Table Page Power Cords Power cords A ThinkPad power cord for a specific country or region is usually available only in that country or region: Table
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