IBM Mobile Systems S09N-8590-00 ThinkPad 240 Hardware Maintenance Manual December 2000 i Before using this information and the product it supports, be sure to read the general information under "Read This First" on page 1. Second Edition (October 1999) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimers or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes in the products or the programs described in this publication at any time. It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM Authorized Dealer or your IBM Marketing Representative. © Copyright International Business Machines Corporation 1999. All rights reserved. Note to US Government Users -- Documentation related to restricted rights -- Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp. Contents ThinkPad 240 Hardware Maintenance Manual Read This First . . . . . . . . . . . . . . . . What to Do First . . . . . . . . . . . . . . How to Disable the Password ....... Product Overview . . . . . . . . . . . . . . . Fn Key Combinations ........... Status Indicators . . . . . . . . . . . . . . Checkout Guide ............... Audio Checkout . . . . . . . . . . . . . . Fan ASM Checkout ............ Keyboard and Auxiliary Input Device Checkout Memory Checkout . . . . . . . . . . . . . Modem Board Checkout . . . . . . . . . . Power System Checkout . . . . . . . . . . TrackPoint Checkout . . . . . . . . . . . . I/O Ports Checkout ............ Power Management Features ....... Symptom-to-FRU Index . . . . . . . . . . . . Numeric Error Codes . . . . . . . . . . . . Error Messages . . . . . . . . . . . . . . No Beep Symptoms . . . . . . . . . . . . LCD-Related Symptoms .......... Keyboard-Related Symptoms . . . . . . . . Indicator-Related Symptoms ........ Power-Related Symptoms ......... PC Card (PCMCIA)-Related Symptoms . . . Speaker-Related Symptoms ........ Power Management-Related Symptoms . . . Peripheral-Device-Related Symptom .... Intermittent Problems ........... Undetermined Problems .......... CE Utility Program Diskette .......... Writing the VPD Data ........... Flash UUID ................ Running the Diagnostics . . . . . . . . . . . . FRU Removals and Replacements . . . . . . . FRU Service Procedures . . . . . . . . . . 1010 Battery ASM . . . . . . . . . . . . . 1020 Hard Disk Drive ........... 1030 Keyboard .............. 1040 Modem Card . . . . . . . . . . . . . 1050 DIMM Card ............. 1060 LCD Unit ASM . . . . . . . . . . . . 1070 Upper Cover ASM .......... 1080 Speaker ASM ............ 1085 Select Button ASM . . . . . . . . . . 1090 Cable ASM and Cable ASM LED-R . . 1100 Fan ASM .............. 1110 Modem Cable ASM . . . . . . . . . . 1120 Water Channel ASM ......... 1130 System Board ............ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 2 3 4 5 6 7 8 8 9 9 10 10 12 13 13 16 16 18 19 19 19 19 20 20 20 20 21 21 22 23 23 23 23 24 24 26 27 28 30 31 32 34 36 37 38 39 41 42 43 Contents iii 1135 Rear Bracket . . . . . . . . . . . 1140 PCMCIA Slots . . . . . . . . . . 1150 LCD Bezel ASM ......... 1160 LCD Inverter ASM ........ 1170 LCD Panel ASM (LCD Type A and B) 1180 LCD FPC ASM (LCD Type A) . . . 1185 LCD FPC ASM (LCD Type B) . . . 1190 Hinge ASM ........... Computer Parts Listing .......... LCD Unit Parts Listing (LCD Type A) . . . . LCD Unit Parts Listing (LCD Type B) . . . . Service Tools . . . . . . . . . . . . . . . Notices . . . . . . . . . . . . . . . . . . Trademarks ............... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 46 47 48 49 51 52 53 54 58 59 59 61 61 iv ThinkPad 240 ThinkPad 240 Hardware Maintenance Manual About This Manual This manual contains service and reference information for the IBM ThinkPad 240 products. Use this manual along with the diagnostics tests to troubleshoot problems effectively. There are two models of LCD panel used with the ThinkPad 240: LCD Type A and LCD Type B. Check the last five letters of the unit's serial number you are servicing to determine the model. LCD Type A: All ThinkPad 240 computers that have serial numbers whose last five alphanumeric characters are "00001" to "YZZZZ" are fitted with Type A panels. Note: The number range is from 00001 to 99999, and the letter range is from AAAAA to YZZZZ. LCD Type B: All ThinkPad 240 computers that have serial numbers whose last five letters are "ZAAAA" to "ZZZZZ" are fitted with Type B panels. The servicer need only check the fifth letter from the end. If the fifth letter from the end is "0 -- Y" (inclusive), then the LCD panel is Type A. If the fifth letter from the end is "Z", then the LCD panel is Type B. The manual is divided into sections as follows: The introduction section provides general information, guidelines, and safety information required to service computers. The product-specific section includes service, reference, and product-specific parts information. This manual is intended for trained servicers who are familiar with ThinkPad products. Use this manual along with the PC Doctor to troubleshoot problems effectively. Read This First Before you go to the checkout guide, be sure to read this section. Important Notes Only certified trained personnel should service the computer. Read the entire FRU service procedures before replacing any FRUs. ThinkPad 240 1 Use new nylon-coated screws when you replace FRUs. Be extremely careful during write operations such as copying, saving, or formatting. Drives in the computer that you are servicing might have been rearranged or the drive startup sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten. Replace FRUs only for the correct model. When you replace a FRU, make sure the model of the computer and FRU part number are correct by referring to the FRU parts list. A FRU should not be replaced because of a single, unreproducible failure. 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. FRU replacement should be considered only when a recurring problem exists. If this is suspected, clear the error log and run the test again. Do not replace any FRUs if log errors do not reappear. Be careful not to replace a non-defective FRU. What to Do First The servicer must include the following in the parts exchange form or parts return form that is attached to the returned FRU: 1. Name and phone number of servicer 2. Date of service 3. Date when part failed 4. Date of purchase 5. Failure symptoms, error codes appearing on the display, and beep symptoms 6. Procedure index and page number in which the failing FRU was detected 7. Failing FRU name and part number 8. Computer type, model number and serial number 9. Customer's name and address Before checking problems with the computer, determine whether or not the damage applies to the warranty by referring to the following: Note for Warranty: 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 2 ThinkPad 240 and some symptoms that may indicate that the system was subjected to stresses beyond normal use: The following is not covered under warranty: LCD panel cracked by applying excessive force or from being dropped Scratched (cosmetic) parts Cracked or broken plastic parts, broken latches, broken pins, or broken connectors caused by excessive force Damage caused by liquid spilled into the system Damage caused by the improper insertion of a PC Card or the installation of an incompatible card Damaged or bent PC Card eject button Fuses blown by attachment of a non-supported device Forgotten computer password (making the computer unusable) The following symptoms might indicate damage caused by non-warranted activities: Missing parts might be a symptom of unauthorized service or modification. Hard disk drive spindles can become noisy from being subjected to excessive force or from being dropped. How to Disable the Password There are three passwords used at a typical customer site: the Supervisor Password, the hard disk drive password, and the Power On password. Power On password: 1. Power off the computer. 2. Remove the battery pack and AC Adapter. 3. Open the keyboard and disconnect the keyboard connector from the system board, see "1030 Keyboard" on page 28. 4. Short the jumper JP1. See the following figure: ThinkPad 240 3 5. Close the keyboard. 6. Power on the computer and wait until POST ends. 7. Verify that the password prompt does not appear. Supervisor and hard disk drive passwords: The Supervisor Password and hard disk drive password are security features that are used to protect the system and the hard disk drive data from unauthorized access. No overriding capability is provided, so it cannot be replaced if they are forgotten. If the customer forgets the Supervisor Password, the system board must be replaced. If the customer forgets the hard disk drive password, the hard disk drive must be replaced. Product Overview The following shows an overview of the system features of the ThinkPad 240 computer. Feature Processor Description Intel** Celeron** processor 366 MHz, 128KB L2 cache Bus architecture Memory PCI Bus 64 MB SDRAM onboard only 32 MB, 64 MB or 128 MB DIMM card (max. 192 MB) BIOS ROM Video up to 512 Kbytes 10.4­inch, 16M colors, 800x600 pixel TFT color LCD 4 ThinkPad 240 Feature Audio Description 16­bit audio Internal speaker Internal microphone Hard disk drive I/O ports 3.2/6.4GB, 2.5­inch, IDE interface External monitor Headphone/line-out Line-in Microphone-in Mouse/keyboard Parallel Serial USB RJ11 External diskette drive Infrared transfer Internal modem PC Card (PCMCIA) IrDA 1.1 56Kbps (depends on the model) One Type II CardBus support AC Adapter 56­Watt type Fn Key Combinations The following table shows the Fn key and function key combinations and their corresponding functions. The Fn key works independently of the operating system. The operating system obtains the status through the system management interface to control the system. Fn + F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 0 (zero) (minus) = Result Standby mode Suspend mode Decrease brightness Increase brightness Switch between the LCD, the external monitor, and both the LCD and external monitor. Switch power mode Hibernation mode Print screen Scroll lock Pause Activates the system request function Enables the numeric keypad Signals a break ThinkPad 240 5 Fn + Up arrow Down arrow Left arrow Right arrow Insert Delete Backspace Result Page up Page down Home End Decreases the internal speaker volume Increases the internal speaker volume Mutes the internal speaker Status Indicators The system status LED indicators show the current computer status. The following shows the location of each indicator symbol and the meaning of each indicator. Pad Think Symbol (1) Battery status Color Green Blinking orange Orange Meaning Enough battery power remains for operation. The battery pack needs to be charged. The battery pack is being charged. The computer is in suspend mode. The computer is entering suspend mode. (2) Suspend mode Green Blinking green 6 ThinkPad 240 Symbol (3) Drive in use Color Orange Meaning Data is being read from or written to the hard disk drive. Do not enter hibernation mode or power off the computer when this indicator is on. The numeric keypad on the keyboard is enabled. You enable or disable the keypad by pressing and holding the Fn key, and pressing the NumLk key. For details, see the User's Reference. Caps Lock mode is enabled. All alphabetic characters (A-Z) are entered in capital letters without the Shift key being pressed. You enable or disable the Caps Lock mode by pressing and holding the Fn key, and pressing the Caps Lock key. Scroll Lock mode is enabled. The Arrow keys can be used as screen-scroll function keys. The cursor cannot be moved with the Arrow keys. Not all application programs support this function. You enable or disable Scroll Lock mode by pressing and holding the Fn key, and pressing the ScrLk key. The computer is operational. This indicator is always on when the computer is on and not in suspend mode. (4) Numeric lock Green (5) Caps lock Green (6) Scroll lock Green (7) Power on Green Checkout Guide Use the following procedure as a guide for computer problems. Note: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses. ThinkPad 240 7 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to recreate the failure by running the diagnostic test or by repeating the same operation. Note: To run the diagnostics, refer to "Running the Diagnostics" on page 23 3. Use the following table with the verified symptom to determine which page to go to. Search the symptoms column and find the description that best matches your symptom; then go to the page shown in the "Go to" column. Symptoms (Verified) Power failure. (The power-on indicator does not go on or stay on.) POST does not complete. No beeps or error codes/messages are indicated. POST beeps, but no error codes are displayed. POST detected an error and displayed numeric error codes. The diagnostic test detected an error and displayed a FRU code. Other symptoms (such as LCD display problems). Symptoms cannot be recreated (intermittent problems). Go to "Power System Checkout" on page 10, then use table in "Power-Related Symptoms" on page 20. "Symptom-to-FRU Index" on page 16, then use table in "No Beep Symptoms" on page 19. "Symptom-to-FRU Index" on page 16. "Symptom-to-FRU Index" on page 16, then use table in "Numeric Error Codes" on page 16. "Running the Diagnostics" on page 23. "Symptom-to-FRU Index" on page 16. Use the customer-reported symptoms, and go to "Symptom-to-FRU Index" on page 16. Audio Checkout Do as follows: 1. Boot from the diagnostics diskette and start the program. 2. Go to Interactive Tests on the main menu and select the Internal Speaker test. 3. If no sound is heard, replace the speaker. Fan ASM Checkout To check the fan ASM, do the following: 1. Boot from the diagnostics diskette and start the program. 8 ThinkPad 240 2. Go to Diagnostics on the main menu and select Other Devices. 3. Follow the description in the window. If the test detects a fan ASM problem, replace the fan. Keyboard and Auxiliary Input Device Checkout Note: Remove the external keyboard if the internal keyboard is to be tested. If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated on the connector. If the keyboard cable connection is correct, run the Keyboard Test. See "Running the Diagnostics" on page 23 for details. If the test detects a keyboard problem, do the following one at a time to correct the problem. Do not replace a nondefective FRU. 1. Replace the keyboard. 2. Replace the system board. The following auxiliary input devices are supported for this computer: Numeric keypad Mouse (PS/2 compatible) External keyboard (with keyboard/mouse cable) If any of these devices do not work, reseat the cable connector and repeat the failing operation. If the problem does not reoccur, replace the device and then the system board. Memory Checkout DIMM are available for increasing memory capacity. Onboard (MB) 32 32 32 32 64 64 64 64 Slot (MB) 0 32 64 128 0 32 64 128 Total Memory (MB) 32 64 96 160 64 96 128 192 ThinkPad 240 9 Memory errors might stop system operation, show error messages on the screen, or hang the system. Use the following procedure to isolate memory problems: 1. Turn off the computer and remove any installed DIMM from its slot. 2. Boot from the diagnostics diskette and start the program. 3. Go to Diagnostics on the main menu and select Memory Test.If an error appears, replace the system board. 4. Turn off the computer and reinstall the DIMM; then turn on the computer. Verify the memory size; then test the memory. If an error appears, replace the DIMM. Note: Make sure that the DIMM is properly installed into the connector. A loose connection can cause an error. Modem Board Checkout Do the following to isolate the problem to the system internal modem: 1. Boot from the diagnostics diskette and start the program. 2. Go to Diagnostics on the main menu and select Other Devices. 3. Follow the description in the window. 4. If the test detects a modem problem, replace the modem card. Power System Checkout To verify the symptom of the problem power on the computer using each of the following power sources: 1. Remove the battery ASM. 2. Connect the AC Adapter and check that power is supplied. 3. Disconnect the AC Adapter and install the charged battery ASM; then check that power is supplied by the battery ASM. If you suspect a power problem, refer to the appropriate power supply check listed below: "Checking the AC Adapter" on page 11 "Checking the Operational Charging" on page 11 "Checking the Battery ASM" on page 11 10 ThinkPad 240 Checking the AC Adapter: You are here because the computer fails only when the AC Adapter is used: If the power-on indicator does not turn on, check the power cord of the AC Adapter for correct continuity and installation. If the operational charge does not work, go to "Checking the Operational Charging." Unplug the AC Adapter cable from the computer and measure the output voltage at the plug of the AC Adapter cable. See the following figure. Pin 1 2 Voltage (V dc) +15.5 to +17.0 Ground If the voltage is not correct, replace the AC Adapter. If the voltage is within the range, do the following: Replace the system board. If the problem is not corrected, go to "Undetermined Problems" on page 22 Note: An audible noise from the AC Adapter does not always indicate a defective adapter. Checking the Operational Charging: To check operational charging, use a discharged battery pack (battery ASM) or a battery ASM that has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the battery status indicator does not turn on, remove the battery ASM and let it return to room temperature. Reinstall the battery ASM. If the charge indicator still does not turn on, replace the battery ASM. If the charge indicator still does not turn on, replace the system board. Then reinstall the battery ASM. If the reinstalled battery ASM is not charged, go to the next section. Checking the Battery ASM: 1. Power off the computer. Do the following: 2. Remove the battery ASM and measure the voltage between battery terminals 1(+) and 5(-). See the following figure: ThinkPad 240 11 Note: Signal lines, not used in these steps, are used for communications between the system and the battery. 3. If the voltage is less than 10.6V, the battery ASM has been discharged, recharge the battery ASM. If the voltage is still less than 10.6V, replace the battery. TrackPoint Checkout If the external mouse is connected, the TrackPoint does not work. In this case, please detach the external mouse to check the TrackPoint. If this does not correct the TrackPoint problem, continue with the following: After you use the TrackPoint, the pointer drifts on the screen for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint pointer. This symptom is not a hardware problem. No service actions are necessary if the pointer movement stops in a short period of time. If a click button problem or pointing stick problem occurs, do the following: 1. Boot from the diagnostics diskette and start the program. 2. Go to Interactive Tests on the main menu and select Mouse. 3. Follow the instructions in the message window. If either the pointing stick or the click button does not work, do the following actions one at a time to correct the problem. Do not replace a non-defective FRU. 1. Reseat the keyboard Touchbutton cables. 2. Replace the keyboard. 3. Replace the system board. 12 ThinkPad 240 I/O Ports Checkout Note: Be sure to enable the serial and parallel ports in the BIOS setup utility before performing diagnostics tests on the I/O ports. Also, be sure to write down the I/O address for the serial port to identify the port in the diagnostic test. Do perform a diagnostics checkout on the I/O ports: 1. Boot from the diagnostics diskette and start the program. 2. Go to Diagnostics on the main menu and select Serial Ports or Parallel Ports. Note: If you want to do a check on the infrared port, select Serial Ports. 3. In the Serial Port Test Category, you can check four items: Registers and Interrupts Internal Loopback External Loopback FIFO Buffers (16550A) Move the cursor to the item you want to check, and press Enter. Then follow the instructions on the screen. Note: To do an External Loopback test, you must have a Loopback plug. 4. In the Parallel Port Test Category, you can check two items: Command And Data Port External Loopback And IRQ Move the cursor to the item you want to check, and press Enter. Then follow the instructions on the screen. Note: To do an External Loopback And IRQ test, you must have a Loopback plug. Power Management Features Three power management modes are available in the computer system to reduce power consumption and to prolong battery life. Standby Mode: occurs: In standby mode, the following The LCD backlight turns off. The hard disk drive motor stops. Events that cause the computer to enter standby mode: Standby mode requested by the Fn key (Fn+F3). ThinkPad 240 13 The computer exits standby and resumes operation when any key is pressed. Suspend Mode: occurs: In suspend mode, the following The LCD is powered off. The hard disk drive is powered off. The CPU stops. Events that cause the computer to enter suspend mode: Suspend mode requested by the Fn key (Fn+F4). The Lid is closed. The specified time has elapsed. Battery low occurs and hibernation conditions are insufficient. Note: When battery is low, the battery status indicator blinks orange. Note: In the IBM BIOS Setup Utility, the computer can be set to suspend when the lid is closed. The following events cause the computer to resume operation from suspend mode: The Lid is opened. The real time clock alarm is signaled. The ring indicator (RI) is signaled by a PC Card device or the internal modem. The Fn key is pressed. Power switch is pressed. The computer also exits suspend mode when the battery is critically low or timer conditions are satisfied for entering hibernation mode. Hibernation Mode: For Windows NT user: A Windows NT user cannot create a hibernation file in a Windows NT system that uses the NTFS format system. If you want to use hibernation mode, you should reinstall Windows NT with a FAT format system. Also, if boot manager is installed, the computer cannot enter hibernation mode. Note: Before using hibernation mode, you need a hibernation file. In hibernation mode, the following occurs: The system status, RAM, VRAM, and setup data are stored on the hard disk. The system is powered off. Events that cause the computer to enter hibernation mode: Hibernation mode requested by function key (Fn+F9). 14 ThinkPad 240 Timer conditions are satisfied in suspend mode when hibernate by timer is enabled. A critically low battery condition occurs. The power switch is pressed. (BIOS Setup) The computer exits hibernation mode and resumes operation when the power-on switch is pressed. When power is turned on, the hibernation file in the boot record on the hard disk drive is read and the system status is restored from the hard disk drive. The power switch must be pressed to cause the computer to resume operation from hibernation mode. How to Create the Hibernation Function: Do as follows: Turn off the computer. Insert the hibernation utility diskette into the diskette drive (you can create the diskette using the Diskette Factory). Turn on the computer. Follow the instructions on the screen. Note: If you change the memory size, you need to recreate the hibernation file or partition. For partition-based hibernation, use the hibernation utility to delete the partition first before creating a new one. ThinkPad 240 15 Symptom-to-FRU Index The Symptom-to-FRU Index lists the symptoms and errors and the possible causes. The most likely cause is listed first. Note: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns. If a FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. This index can also be used to help you decide the next possible FRUs to be replaced when servicing a computer. Numeric error codes show the errors detected in POST or system operation (runtime). In the following error codes, X can be any number. If no codes are available, use narrative symptoms. If the symptom is not listed, go to "Undetermined Problems" on page 22. Note: For IBM devices not supported by diagnostic codes in this ThinkPad computer, see the manual for that device. Numeric Error Codes The following is a list of the message that the BIOS can display. Most of them occur during POST. Some of them display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured. Following the list are explanations of the messages and remedies for reported problems. If the system fails after you make changes in the Setup menus, reset the computer, enter Setup and install Setup defaults or correct the error. Symptom/Error 0200 Failure Fixed Disk FRU/Action in Sequence 1. Reseat hard disk drive. 2. Load Setup Defaults in BIOS Setup Utility. 3. Hard disk drive 4. System board 0211 Stuck Key 0211 Keyboard error 0212 Keyboard Controller Failed Go to "Keyboard and Auxiliary Input Device Checkout" on page 9. Go to "Keyboard and Auxiliary Input Device Checkout" on page 9. Go to "Keyboard and Auxiliary Input Device Checkout" on page 9. 16 ThinkPad 240 Symptom/Error 0213 Keyboard locked -- Unlock key switch 0220 Monitor type does not match CMOS -- Run Setup 0230 Shadow RAM Failed at offset:nnnn 0231 System RAM Failed at offset:nnnn 0232 Extended RAM Failed at offset:nnnn 0250 System battery is dead 0251 System CMOS checksum bad -- Default configuration used 0260 System timer error 0270 Real time clock error 0280 Previous boot incomplete -- Default configuration used FRU/Action in Sequence Unlock external keyboard. Load Setup Defaults in BIOS Setup Utility. System board 1. DIMM 2. System board 1. DIMM 2. System board System board System board 1. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 2. System board 1. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 2. System board 1. Load Setup Defaults in the BIOS Setup Utility. 2. System board ThinkPad 240 17 Symptom/Error 0281 Memory size found by POST differed from CMOS 02D0 System cache error -- Cache disabled 02F0 CPU ID: 02F5 DMA Test Failed 02F6 Software NMI Failed 02F7 Fail-Safe Timer NMI Failed FRU/Action in Sequence 1. Load Setup Defaults in the BIOS Setup Utility. 2. DIMM 3. System board System board System board 1. DIMM 2. System board 1. DIMM 2. System board 1. DIMM 2. System board Error Messages Symptom/Error Device Address Conflict Allocation Error for: device Failing Bits: nnnn Invalid System Configuration Data I/O device IRQ conflict FRU/Action in Sequence 1. Load Setup Defaults in BIOS Setup Utility. 2. System board 1. Load Setup Defaults in BIOS Setup Utility. 2. System board 1. DIMM 2. System board System board 1. Load Setup Defaults in BIOS Setup Utility. 2. System board Operating system not found 1. Enter BIOS Setup Utility and see if the hard disk drive and diskette drive A: are properly identified. 2. Hard disk drive 3. System board 18 ThinkPad 240 No Beep Symptoms Symptom/Error No beep, power-on indicator on, LCD blank, no POST FRU/Action in Sequence Ensure every connector is connected tightly and correctly. DIMM System board No beep, power-on indicator off, LCD blank during POST No beep, power-on indicator on, LCD blank during POST No beep during POST but system runs correctly. Battery ASM AC Adapter System board Reseat DIMM. System board Speaker LCD-Related Symptoms Symptom/Error LCD backlight not working LCD too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted LCD screen unreadable Character missing pels Screen abnormal Wrong color displayed LCD has extra horizontal or vertical lines displayed. FRU/Action in Sequence 1. Reseat the LCD connector. 2. LCD FPC ASM 3. LCD inverter 4. LCD 5. System board 1. Reseat the LCD connector. 2. LCD FPC ASM 3. LCD inverter 4. LCD 5. System board 1. LCD FPC ASM 2. LCD inverter 3. LCD 4. System board Keyboard-Related Symptoms Symptom/Error Keyboard (one or more keys) doesn't work. FRU/Action in Sequence 1. Reseat the keyboard cable. 2. Keyboard 3. System board Indicator-Related Symptoms ThinkPad 240 19 Symptom/Error Indicator incorrectly remains off or on, but system runs correctly. FRU/Action in Sequence 1. Reseat the LED cable. 2. LED cable 3. System board Power-Related Symptoms Symptom/Error Power shuts down during operation. FRU/Action in Sequence 1. Battery 2. AC Adapter 3. System board The system will not power on. 1. Battery ASM 2. AC Adapter 3. System board The system will not power off. Battery can't be charged. 1. System board Battery System board PC Card (PCMCIA)-Related Symptoms Symptom/Error System cannot detect the PC Card (PCMCIA) FRU/Action in Sequence 1. PC Card (PCMCIA) slots assembly 2. System board Speaker-Related Symptoms Symptom/Error Speakers make noise or no sound comes from system. In DOS or Windows multimedia programs, no sound comes from the computer. FRU/Action in Sequence 1. Speaker 2. System board 1. Speaker 2. System board Power Management-Related Symptoms Symptom/Error The system will not enter hibernation mode. FRU/Action in Sequence 1. Keyboard (if control is from the keyboard) 2. Hard disk drive 3. System board The system will not wake up from hibernation mode. 1. Keyboard (if control is from the keyboard) 2. Hard disk drive 3. System board 20 ThinkPad 240 Symptom/Error The system will not enter suspend mode after closing the LCD. Battery fuel-gauge does not go higher than 90%. FRU/Action in Sequence 1. LED Card ASM (R) 2. System board 1. Remove battery ASM and let it cool for 2 hours. 2. Refresh battery (continue using battery in BIOS Setup mode until power off, then charge battery). 3. Battery 4. System board System configuration does not match the installed devices. System hangs intermittently. 1. Load Setup Defaults and reboot the system. 1. Fan ASM 2. System board Peripheral-Device-Related Symptom Symptom/Error External display does not work correctly. USB does not work correctly. Print problems FRU/Action in Sequence System board System board Run printer self-test. Printer driver Printer cable System board Serial or parallel port device problems Device driver Device cable Device System board Note: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 22. Intermittent Problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electronic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: 1. Run the diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRUs. ThinkPad 240 21 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist. Undetermined Problems You are here because the diagnostic tests did not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate non-defective FRUs). Verify that the power supply being used at the time of the failure is operating correctly. (See "Power System Checkout" on page 10.) 1. Power off the computer. 2. Visually check for damage. If any problems are found, replace the FRU. 3. Remove or disconnect all of the following devices: a. Non-IBM devices b. Printer, mouse, and other external devices c. Battery ASM d. Hard disk drive e. DIMM f. PC Cards (PCMCIA) 4. Power on the computer. 5. Determine if the problem has changed. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7. If the problem remains, replace the following FRUs one at a time. Do not replace a non-defective FRU. a. System board b. LCD panel ASM 22 ThinkPad 240 CE Utility Program Diskette Writing the VPD Data The EEPROM on the system board contains the Vital Product Data (VPD) -- that is, a computer serial number and a system board serial number. When you replace the system board, restore the computer serial number using the VPD Data Utility in the ThinkPad CE Utility Diskette. The serial number label is attached to the computer. Flash UUID The EEPROM on the system board contains the Universal Unique ID (UUID) -- that is, for Microsoft or Internet use. When you replace the system board using the Flash UUID Utility in the ThinkPad CE Utility Diskette. The UUID utility will automatically assign the UUID via Windows. Running the Diagnostics Use either the TrackPoint or the cursor move keys to interact with the tests. 1. Connect the external floppy disk drive to the computer. 2. Insert the PC Doctor startup disk into the diskette drive. 3. Power-on the computer. 4. From the PC DOS 7.0 Startup Menu, select 1. ThinkPad 240 and press Enter. The PC-Doctor diagnostic program will load. 5. At the main menu, select the test to run. 6. Press Enter to run the test selected. 7. After starting a test, do not press any key until prompted, then follow the instructions on the screen. 8. When the test is completed, press Esc to return to the main menu. 9. Select Quit/Exit Diags to exit the diagnostics utility. ThinkPad 240 23 FRU Removals and Replacements This section contains information about removals and replacements. Do not damage any parts. Only certified and trained personnel should service the computer. The arrows in this section show the direction of movement to remove a FRU, or to turn a screw to release the FRU. The arrows are marked in numeric order, in square callouts, to show the correct sequence of removal. When other FRUs must be removed before the failing FRU is removed, they are listed at the top of the page. To replace a FRU, reverse the removal procedure and follow any notes that pertain to replacement. When replacing a FRU, use the correct screw size, as shown in the procedures. Safety Notice 1: Before the computer is powered on after FRU replacement, make sure all screws, springs, or 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 an electrical short circuit. Safety Notice 4: The battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212 °F), incinerate it, or expose its cell contents to water. 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 in ignition or explosion of the battery. Safety Notice 8: Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery ASM, and then disconnect any interconnecting cables. An electrostatic discharge (ESD) strap (P/N 6405959) must be used to establish personal grounding. FRU Service Procedures Review the following procedures before replacing any FRU. 24 ThinkPad 240 LCD FRU Replacement Notice: The TFT LCD for the notebook computer contains over 2,359,296 thinfilm transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) 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 8 or more. Replacing the System Board: When you replace the system board, restore the computer serial number using the VPD Data Utility and reassign the UUID using the Flash UUID Utility in the ThinkPad 240 ThinkPad Hardware Maintenance Diskette. Note: Do not power off the computer while restoring the VPD. Important Notice This computer uses special nylon-coated screws with the following characteristics: They maintain tight connections. They do not easily come loose, even with shock or vibration. They need additional force to tighten. They should be used only once. Do the following when you service this computer: Have a screw kit (10L1956) available. Always use new screws if you are instructed. Use a torque screwdriver if you have one. ThinkPad 240 25 1010 Battery ASM To remove the battery ASM: 1. Slide the release lock as shown. 2 2. Slide the release latch as shown. 3. Remove the battery ASM. Reverse the steps described above when installing a new battery pack. 26 ThinkPad 240 1 1 2 1020 Hard Disk Drive Warning Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data on the drive. Before removing the drive, have the user make a backup copy of all the information on the drive if possible. Never remove the drive while the system is operating or is in suspend mode. To remove the hard disk drive: 1. Remove the two screws from the hard disk cover. 2. Slide the hard disk drive module as shown. 3. Lift as shown to remove the hard disk drive module. Size (Quantity) M2.5 x 7L (2) Head & Color Flat head, black Step 1 Torque 2.5 kgf-cm Note: Make sure you use the correct screw for replacement. ThinkPad 240 27 1030 Keyboard 1010 Battery ASM To remove the keyboard: 1. Remove the three screws securing the keyboard. 2. Turn the notebook over; then lift the keyboard as shown. 3. Remove the keyboard stopper sheet screw. 4. Disconnect the keyboard connector from the system board. Remove the keyboard from the lower case. 28 ThinkPad 240 Thin kPa d Step 1 3 Size (Quantity) M2.0 x 9L (3) M2.5 x 6L (1) Head & Color Flat head, black Flat head, silver Thin kPad Torque 2.5 kgf-cm 2.5 kgf-cm Note: Make sure you use the correct screw for replacement. ThinkPad 240 29 1040 Modem Card 1010 Battery ASM 1030 Keyboard To remove the modem card: 1. Carefully release the latches on both sides of the modem card. 2. Disconnect the modem cable from the connector. 3. Gently remove the modem card. 30 ThinkPad 240 Thin kPad 1050 DIMM Card 1010 Battery ASM 1030 Keyboard To remove the memory card: 1. Carefully release the latches on both sides of the memory card. 2. Gently remove the memory card. Thin kPad ThinkPad 240 31 1060 LCD Unit ASM Note: Refer to "ThinkPad 240 Hardware Maintenance Manual" on page 1 for information on LCD Type A and LCD Type B panel designations. 1010 Battery ASM 1030 Keyboard Note: The Cu tape must be reseated firmly after the LCD unit ASM is replaced 3 . To remove the LCD unit ASM: 1. Remove the screws as shown. 2. Turn the notebook over; then remove the hinge covers. 3. Remove the Cu tape from the FPC cable. 4. Disconnect the LCD FPC cable from the system board. 5. Remove the LCD hinge screws. 6. Raise the upper cover enough to remove the FPC cable. Remove the LCD unit. 32 ThinkPad 240 1 2 Step 1 5 Size (Quantity) M2.0 x 4L (2) M2.5 x 6 L (4) Head & Color Flat head, black Flat head, silver Torque 2.5 kgf­cm 3.5 kgf-cm Note: Make sure you use the correct screw for replacement. ThinkPad 240 33 1070 Upper Cover ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM To remove the upper cover ASM: 1. Remove the screw cover. 2. Remove the screw. 3. Remove the other screw as shown. Step 2 3 4 Size (Quantity) M2.0 x 4L (1) M2.5 x 7L (1) M2.0 x 4L Head & Color Flat head, black Flat head, black Flat head, black Torque 2.5 kgf-cm 2.5 kgf-cm 2.0 kgf-cm Note: Make sure you use the correct screw for replacement. 4. Turn the notebook over; then remove the two screws. 34 ThinkPad 240 5. Disconnect the Touchbutton cable from the system board. 6. Carefully lift the upper cover to expose the speaker connector as shown. 7. Disconnect the speaker cable from the main unit. Now you can remove the upper cover ASM from the base cover ASM. ThinkPad 240 35 1080 Speaker ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM To remove the speaker: 1. Remove the three screws securing the speaker. 2. Remove the securing tape from the cable. 3. Gently lift the speaker away from the upper cover. Step 1 Size (Quantity) M2.0 x 3L (3) Head & Color Flat head, silver Torque 2.5 kgf-cm Note: Make sure you use the correct screw for replacement. 36 ThinkPad 240 1085 Select Button ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM To remove the select button ASM: 1. Remove the three screws as shown. 2. Remove the select button ASM from the top cover ASM. Step 1 Size (Quantity) M2.5 x 2.5L (3) Head & Color Flat head, silver Torque 2.0 kgf-cm Note: Make sure you use the correct screw for replacement. ThinkPad 240 37 1090 Cable ASM and Cable ASM LED-R 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM To remove the hinge LED cable: 1. Disconnect the LED cable, then lift it as shown. (The cable is fixed with double-sided tape.) To remove the cable ASM LED-R: 1. Remove the screw. 2. Disconnect the LED board, then lift it as shown. Step 1 Size (Quantity) M2.0 x 7L (1) Head & Color Flat head, silver Torque 2.0 kgf-cm Note: Make sure you use the correct screw for replacement. 38 ThinkPad 240 1100 Fan ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM 1090 Cable ASM and Cable ASM LED-R Warning Do not apply pressure on the fan blades or hub assembly; doing so can damage the fan bearings. To remove the fan ASM: 1. Remove the two screws securing the fan ASM. 2. Carefully lift the fan ASM. 3. Disconnect the cable from the system board. Warning When reassembling the fan, ensure that you insert the screws in the order shown in the following illustration: Step 1 Size (Quantity) M2.0 x 7L (2) Head & Color Flat head, silver Torque 2.0 kgf-cm ThinkPad 240 39 Step Size (Quantity) Head & Color Torque Note: Make sure you use the correct screw for replacement. 40 ThinkPad 240 1110 Modem Cable ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM To remove the modem cable ASM: Disconnect the modem cable from the system board. Remove the cable as shown. ThinkPad 240 41 1120 Water Channel ASM 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM To remove the water channel ASM: Remove the water channel ASM as shown. 42 ThinkPad 240 1130 System Board 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM 1090 Cable ASM and Cable ASM LED-R 1100 Fan ASM 1120 Water Channel ASM Note: See "Replacing the System Board" on page 25 before proceeding. 1. Remove the screws as shown. 2. Turn the notebook over; remove the two screws from the diskette drive connector. 3. Remove the screw from the PCMCIA slot. 4. Remove the battery terminal screw. 5. Gripping firmly as shown, separate the base cover around the sides from the system board. ThinkPad 240 43 6. Remove the system board from the base cover ASM. Step 1 2 3 4 Size (Quantity) M2.0 x 4L (5) M2.0 x 6L (2) M2.0 x 4L (1) M2.0 x 8L (1) Head & Color Flat head, black Flat head, black Flat head, black Flat head, black Torque 2.5 kgf-cm 2.0 kgf-cm 2.0 kgf-cm 2.0 kgf-cm Note: Make sure you use the correct screw for replacement. 44 ThinkPad 240 1135 Rear Bracket 1010 Battery ASM 1020 Hard Disk Drive 1030 Keyboard 1060 LCD Unit ASM 1070 Upper Cover ASM 1090 Cable ASM and Cable ASM LED-R 1100 Fan ASM 1120 Water Channel ASM 1130 System Board Note: See "Replacing the System Board" on page 25 before proceeding. 1. Remove the six hexagonal studs as shown. 2. Remove the microphone. 3. Remove the rear bracket. Size (Quantity) M2.5 x 4.5L (6) Head & Color Hex head, silver Step 1 Torque 4.0 kgf-cm Note: Make sure you use the correct screw for replacement. ThinkPad 240 45