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S 09N - 8590 -00 IBM Mobile Systems ThinkPad 240 Hardware Maintenance Manual December 2000.
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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.
Contents ThinkPad 240 Hardware Maintenance Manual .. 1 Read This First .................. 1 What to Do First ................ 2 How to Disable the Password ......... 3 Product Overview . . . . . . . . . . . . . . . . . 4 Fn Key Combinations ..........
1135 Rear Bracket ............... 4 5 1140 PCMCIA Slots .............. 4 6 1150 LCD Bezel ASM ............. 4 7 1160 LCD Inverter ASM ............ 4 8 1170 LCD Panel ASM (LCD Type A and B) . . . 49 1180 LCD FPC ASM (LCD Type A) ....... 5 1 1185 LCD FPC ASM (LCD Type B) .
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 effec- tively. There are two models of LCD panel used with the ThinkPad 240: LCD Type A and LCD Type B.
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.
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 .
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 pass- word are security features that are used to protect the system and the hard disk drive data from unauthor- ized access.
Feature Description Audio 16–bit audio Internal speaker Internal microphone Hard disk drive 3.2/6.4GB, 2.5–inch, IDE interface I/O ports External monitor Headphone/line-out Line-in Microphone-in Mouse/keyboard Parallel Serial USB RJ11 External diskette drive Infrared transfer IrDA 1.
Fn + Result Up arrow Page up Down arrow Page down Left arrow Home Right arrow End Insert Decreases the internal speaker volume Delete Increases the internal speaker volume Back- space Mutes the internal speaker Status Indicators The system status LED indicators show the current com- puter status.
Symbol Color Meaning (3) Drive in use Orange 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. (4) Numeric lock Green The numeric keypad on the keyboard is enabled.
1. Obtain the failing symptoms in as much detail as pos- sible. 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.
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 key- board is to be tested.
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.
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.
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.
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.
The computer exits standby and resumes operation when any key is pressed. Suspend Mode: In suspend mode, the following occurs: 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).
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 opera- tion when the power-on switch is pressed.
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.
Symptom/Error FRU/Action in Sequence 0213 Keyboard locked — Unlock key switch Unlock external keyboard. 0220 Monitor type does not match CMOS — Run Setup Load Setup Defaults in BIOS Setup Utility. 0230 Shadow RAM Failed at offset:nnnn System board 0231 System RAM Failed at offset:nnnn 1.
Symptom/Error FRU/Action in Sequence 0281 Memory size found by POST dif- fered from CMOS 1. Load Setup Defaults in the BIOS Setup Utility. 2. DIMM 3. System board 02D0 System cache error — Cache dis- abled System board 02F0 CPU ID: System board 02F5 DMA Test Failed 1.
No Beep Symptoms Symptom/Error FRU/Action in Sequence No beep, power-on indicator on, LCD blank, no POST Ensure every connector is connected tightly and cor- rectly.
Symptom/Error FRU/Action in Sequence Indicator incorrectly remains off or on, but system runs cor- rectly. 1. Reseat the LED cable. 2. LED cable 3. System board Power-Related Symptoms Symptom/Error FRU/Action in Sequence Power shuts down during operation.
Symptom/Error FRU/Action in Sequence The system will not enter suspend mode after closing the LCD. 1. LED Card ASM (R) 2. System board Battery fuel-gauge does not go higher than 90%. 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. 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.
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.
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 move- ment to remove a FRU, or to turn a screw to release the FRU.
LCD FRU Replacement Notice: The TFT LCD for the notebook computer contains over 2,359,296 thin- film transistors (TFTs). A small number of missing, discol- ored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns.
1010 Battery ASM To remove the battery ASM: 1. Slide the release lock as shown. 2 1 2 1 2. Slide the release latch as shown. 3. Remove the battery ASM.
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 pos- sible.
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. ThinkPad ThinkP ad 3. Remove the keyboard stopper sheet screw. 4. Disconnect the keyboard connector from the system board.
ThinkPad ThinkPad Step Size (Quan- tity) Head & Color Torque 1 M2.0 x 9L (3) Flat head, black 2.5 kgf-cm 3 M2.5 x 6L (1) Flat head, silver 2.5 kgf-cm Note: Make sure you use the correct screw for replacement.
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. ThinkPad ThinkPad 2.
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. ThinkPad ThinkPad 2.
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 .
Step Size (Quan- tity) Head & Color Torque 1 M2.0 x 4L (2) Flat head, black 2.5 kgf–cm 5 M2.5 x 6 L (4) Flat head, silver 3.5 kgf-cm Note: Make sure you use the correct screw for replacement.
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. 4. Turn the notebook over; then remove the two screws.
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.
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.
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.
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.
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.
Step Size (Quan- tity) 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.
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.
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.
6. Remove the system board from the base cover ASM. Step Size (Quan- tity) Head & Color Torque 1 M2.0 x 4L (5) Flat head, black 2.5 kgf-cm 2 M2.0 x 6L (2) Flat head, black 2.0 kgf-cm 3 M2.0 x 4L (1) Flat head, black 2.0 kgf-cm 4 M2.0 x 8L (1) Flat head, black 2.
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.
1140 PCMCIA Slots 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 .
1150 LCD Bezel ASM 1010 Battery ASM 1. Remove the screw cap covers. 2. Remove the screws as shown. ThinkPad ThinkPad A 3. Gripping as shown, remove the LCD bezel. 4. The LCD latches must be opened as shown to remove the bezel. ThinkPad ThinkPad 5.
1160 LCD Inverter ASM 1010 Battery ASM 1150 LCD Bezel ASM To remove the LCD inverter ASM: 1. Disconnect the flex cable from the inverter card. 2. Disconnect the FPC cable from the inverter card. ThinkPad 3. Remove the inverter card. (The inverter card is fixed to the rear cover with double-sided tape.
1170 LCD Panel ASM (LCD Type A and B) 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 1150 LCD Bezel ASM 1160 LCD Inverter ASM To remove the LCD Panel: 1.
5. Remove the LCD panel. Step Size (Quan- tity) Head & Color Torque 1 M2.0 x 4L (2) Flat head, black 2.5 kgf–cm 3 (LCD Type A) M2.5 x 4L (4) Flat head, silver 3.0 kgf–cm 3 (LCD Type B) M2.0 x 4L (4) Flat head, silver 3.0 kgf–cm Note: Make sure you use the correct screw for replacement.
1180 LCD FPC ASM (LCD Type A) Note: Refer to “ThinkPad 240 Hardware Maintenance Manual” on page 1 for information on LCD Type A and LCD Type B panel designations.
1185 LCD FPC ASM (LCD Type B) 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 1150 LCD Bezel ASM 1160 LCD Inverter ASM 1170 LCD Panel ASM (LCD Type A and B) 1.
1190 Hinge ASM 1010 Battery ASM 1030 Keyboard 1060 LCD Unit ASM 1150 LCD Bezel ASM 1. Remove the screws as shown. 2. Remove the hinge ASM. Step Size (Quan- tity) Head & Color Torque 1 M2.5 x 4L (2) Flat head, silver 3.5 kgf–cm Note: Make sure you use the correct screw for replacement.
Computer Parts Listing a b c d Index Description FRU Number a — d See MISC PARTS list 10L1955 1 HINGE CAP L/R 10L1954 2 UPPER COVER ASM 10L1944 3 REAR BRACKET 10L1952 4 LED CARD ASM (L) 10L1303 5 SE.
Index Description FRU Number 12 FAN ASM 10L1957 13 SPEAKER ASM 02K6307 14 LED CARD ASM (R) 10L1304 15 SYSTEM BOARD ASM 32 MB (Model 1) 10L1302 15 SYSTEM BOARD ASM 64 MB (Model 2) 30L2766 15 SYSTEM BOA.
Description FRU Number TELEPHONE CABLE UK 27L0480 TELEPHONE CABLE Germany 27L0481 TELEPHONE CABLE France 27L0482 32 MB DIMM 42H2819 64 MB DIMM 10L1313 128 MB DIMM 01K1153 EXTERNAL DISKETTE DRIVE CABLE.
Description FRU Number Power cord (Abu Dhabi, Albania, Antigua, Bahrain, Brunei, Dubai, Fiji, Hong Kong, India, Ireland, Kenya, Kuwait, Macao, Malaysia, Nigeria, Oman, People's Republic of China,.
LCD Unit Parts Listing (LCD Type A) e f g h i j Note: Refer to “ThinkPad 240 Hardware Maintenance Manual” on page 1 for information on LCD Type A and LCD Type B panel designations. Index Computer FRU Number e — j See MISC PARTS list 10L1955 1 LCD BEZEL ASM 10L1941 LCD BEZEL ASM Korea 10L1942 2 LCD UNIT-TFT 10.
LCD Unit Parts Listing (LCD Type B) e f g h i j Note: Refer to “ThinkPad 240 Hardware Maintenance Manual” on page 1 for information on LCD Type A and LCD Type B panel designations. Index Computer FRU Number e — j See MISC PARTS list 10L1955 1 LCD BEZEL ASM 10L1941 LCD BEZEL ASM Korea 10L1942 2 LCD UNIT-TFT 10.
Description FRU No. Tri-Connector Wrap Plug 72X8546 PC Test Card 35G4703 Audio Wrap Cable 66G5180 Screwdriver Kit 95F3598 USB Parallel Test Cable 05K2580 Torque Screwdriver 05K4695 5 mm Socket Wrench .
Notices References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any refer- ence to an IBM product, program, or service is not intended to state or imply that only IBM product, program, or service may be used.
IBM Part Number : 09N8590 Printed in U.S.A. S 09N - 8590 -ðð.
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