IBM S09N-8590-00 Oxygen Equipment User Manual
Contents
1. 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 4 inch 05K9589 3 LCD CABLE ASM 27L0489 4 HINGE ASM L R 10L1943 5 LCD REAR COVER ASM 08K5820 LCD REAR COVER ASM Korea 10L1940 LCD REAR COVER ASM Korea 08K5925 Hitachi panel 6 INVERTER CARD ASM 10L1431 Service Tools Description FRU No Diagnostic Diskette N A CE Utility Diskette N A ThinkPad 240 59 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 05K4694 Screwdriver 27L8126 60 ThinkPad 240 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 Subject to IBM s valid intellectual property or other legally protectable rights any functionally equivalent product program or service may be used instead of the IBM product program or service2. 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 com puter 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 recur ring 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 Date of service Date when part failed Date of purchase Ot P OND 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
3. Venezuela Power cord Austria Belgium Bulgaria 76H3518 Czech Republic Egypt Finland France Germany Greece Hungary Iceland Indonesia Netherlands Norway Poland Portugal Romania Slovakia Spain Sweden Turkey former Yugoslavia Power cord Denmark 76H3520 Power cord Bangladesh Pakistan South 76H3522 Africa Sri Lanka 56 ThinkPad 240 Description FRU Number Power cord Abu Dhabi Albania Antigua 76H3524 Bahrain Brunei Dubai Fiji Hong Kong India Ireland Kenya Kuwait Macao Malaysia Nigeria Oman People s Republic of China Qatar Singapore United Kingdom Power cord Switzerland 76H3528 Power cord Israel 76H3532 Power cord Chile Italy 76H3530 Power cord Korea 76H3535 Power cord PRC 02K0539 ThinkPad 240 57 LCD Unit Parts Listing 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 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 4 inch 05K9523 3 LCD CABLE ASM 05K2859 4 HINGE ASM L R 10L1943 5 LCD REAR COVER ASM 10L1939 LCD REAR COVER ASM Korea 10L1940 LCD REAR COVER ASM Korea 08K5925 Hitachi panel 6 INVERTER CARD ASM 10L1306 58 ThinkPad 240 LCD Unit Parts Listing LCD Type B
4. board 6 Carelully 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 e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM To remove the speaker 2 Remove the securing tape from the cable 3 Gently lift the speaker away from the upper cover Size Quan Head amp Step tity Color Torque 1 M2 0 x 3L 3 Flat head 2 5 kgf cm silver Note Make sure you use the correct screw for replacement 36 ThinkPad 240 1085 Select Button ASM 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 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 Size Quan Head amp Step tity Color Torque 1 M2 5 x 2 5L Flat head 2 0 kgf cm 3 silver Note Make sure you use the correct screw for replacement ThinkPad 240 1090 Cable ASM and Cable ASM LED R e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 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
5. 240 53 Computer Parts Listing 0 tlirila Qo rj e w m co o io o violo o Sigt wo ta ive alo D H GH O H Sl H o i9 5 gt EG j Bad Bad Bal aka O ESE e e el e el s e Oo Z c leje rer r o lr r an O O LI 3 x Q Tp D gt O O lo lt o lt s lt LU c lz elelula gt o O RKlul x 9 z lela ISIE lt gt 56 lt lt O a S SIE s a s s o s F a a 6 3 2 z Q O c xc gt Q a lo olclolslileslslE S 3 5 Ly S lt m LU 5 gt js mz a s x 1215 4 Q Z s lm u E 6 se s u QO jA I OTAIVOIVOIALIOSIEIOID x S ala colrlalo vt wo o n o o F 54 ThinkPad 240 Index Description FRU Number 12 FAN ASM 10L1957 13 SPEAKER ASM 02K6307 14 LED CARD ASM R 10L1304 15 SYSTEM BOARD ASM 32 MB 10L1302 Model 1 15 SYSTEM BOARD ASM 64 MB 30L2766 Model 2 15 SYSTEM BOARD ASM 64 MB 08K3426 Model 3 15 SYSTEM BOARD ASM 64 MB 08K3143 Model 4 16 MODEM CARD ASM 10L1305 17 BASE COVER ASM 10L1946 BASE COVER ASM PRC 10L1948 BASE COVER ASM Korea 10L1949 18 HARD DISK DRIVE ASM 3 2 GB 05K9117 Model 1 HARD DISK DRIVE ASM 6 4 GB 05K9119 Model 2 HARD DISK DRIVE DOOR 10L1950 Description FRU Number AC ADAPTER AC Adapter 56W 2 PIN 02K6554 AC Adapter 56W 2 PIN 02K6548 AC Adapter 5
6. 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 e Timer conditions are satisfied in suspend mode when hibernate by timer is enabled A critically low battery condition occurs e The power switch is pressed BIOS Setup The computer exits hibernation mode and resumes opera tion 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 e Turn off the computer e 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
7. 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 narra tive 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 config ured 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 FRU Action in Sequence 0200 1 Reseat hard disk drive Failure Fixed 2 Load Setup Defaults in BIOS Setup Di
8. tape To remove the cable ASM LED R 1 Remove the screw 2 Disconnect the LED board then lift it as shown Size Quan Head amp Step tity Color Torque 1 M2 0 x 7L 1 Flat head 2 0 kgf cm silver Note Make sure you use the correct screw for replacement 38 ThinkPad 240 1100 Fan ASM e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM e 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 e e Oo Size Quan Head amp Step tity Color Torque 1 M2 0 x 7L 2 Flat head 2 0 kgf cm silver ThinkPad 240 39 Size Quan Head amp Step tity Color Torque Note Make sure you use the correct screw for replacement 40 ThinkPad 240 1110 Modem Cable ASM e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM To remove the modem cable ASM e Disconnect the modem cable from the system board Remove
9. up to 512 Kbytes Video 10 4 inch 16M colors 800x600 pixel TFT color LCD 4 ThinkPad 240 Feature Description Audio 16 bit audio Internal speaker Internal microphone Hard disk drive e 3 2 6 4GB 2 5 inch IDE interface I O ports External monitor Headphone line out e Line in Microphone in e Mouse keyboard e Parallel Serial USB RJI1 External diskette drive Infrared transfer IrDA 1 1 Internal modem 56Kbps depends on the model PC Card PCMCIA One Type II CardBus support AC Adapter 56 Watt 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 Result F3 Standby mode F4 Suspend mode F5 Decrease brightness F6 Increase brightness F7 Switch between the LCD the external monitor and both the LCD and external monitor F8 Switch power mode F9 Hibernation mode F10 Print screen F11 Scroll lock F12 Pause 0 zero Activates the system request function Enables the numeric keypad minus Signals a break ThinkPad 240 5 Fn Result Up Page up arrow Down Page down arrow Le
10. 6W 3 PIN 02K6555 AC Adapter 56W 3 PIN 02K6550 KEYBOARD KBD ASM US English 02K6302 KBD ASM Japanese 02K6303 KBD ASM Traditional Chinese 02K6304 KBD ASM Korean 02K6305 KBD ASM Canadian French 02K6306 KBD ASM UK English 02K4938 KBD ASM German 02K4939 KBD ASM French 02K4940 Miscellaneous Screw Kit 10L1956 MODEM CABLE ASM INTERNAL 05K2860 TELEPHONE CABLE US 27L0478 TELEPHONE CABLE Australia 27L0479 ThinkPad 240 55 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 12J1711 EXTERNAL DISKETTE DRIVE ASM 05K8989 05K8990 LARGE BATTERY 02K6607 MISC PARTS 10L1955 a MODEM DOOR b SHUTTER PCMCIA c SPRING SHUTTER d WATER CHANNEL e FPC HOLDER upper f FPC HOLDER lower g HOOK KNOB R h SPRING HOOK R i HOOK KNOB L j SPRING HOOK L Others Power cord Japan 2 PIN 13H5273 Power cord Argentina Australia Papua New 76H3514 Guinea New Zealand Paraguay Uruguay Power cord Bahamas Barbados Bermuda 76H3516 Bolivia Canada Cayman Islands Colombia Costa Rica Dominican Republic Ecuador El Salvador Guatemala Guyana Haiti Honduras Jamaica Korea South Mexico Netherlands Antilles Nicaragua Panama Peru Philippines Saudi Arabia Suriname Taiwan Trinidad West Indies U S A
11. 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 cus tomer 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 exces sive 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 excessi
12. FRU Action in Sequence External display does System board not work correctly USB does not work System board correctly Print problems e Run printer self test Printer driver Printer cable System board Serial or parallel port Device driver device problems e 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 o
13. IBM Mobile Systems S09N 8590 00 ThinkPad 240 Hardware Maintenance Manual December 2000 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 CORPO RATION 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 there fore 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 improve ments 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 pro grams 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 Req
14. M LED R e 1100 Fan ASM e 1120 Water Channel ASM e 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 Quan Head amp Step tity Color Torque 1 M2 5 x 4 5L Hex head 4 0 kgf cm 6 silver Note Make sure you use the correct screw for replacement ThinkPad 240 45 1140 PCMCIA Slots e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM e 1090 Cable ASM and Cable ASM LED R e 1100 Fan ASM 1120 Water Channel ASM 1130 System Board Warning Special care must be taken when disconnecting the PCMCIA card not to cause a short or damage the con nector To remove the PCMCIA slots 1 Remove the screw securing the PCMCIA slot board 2 Use a flat bladed screwdriver to disconnect the PCMCIA card from the connector 3 Carefully remove the PCMCIA card Size Quan Head amp Step tity Color Torque 1 M2 0 x 7L 1 Flat head 2 0 kgf cm silver Note Make sure you use the correct screw for replacement 46 ThinkPad 240 1150 LCD Bezel ASM e 1010 Battery ASM 1 Remove the screw cap covers 2 Remove the screws as shown 3 Gripping as shown remove the LCD bezel 4 The LCD latches must be opened as shown to remove the bezel 5 Remove the bezel fr
15. Problems CE Utility Program Diskette 2 Writing the VPD Data Flash UUIBD fia Bie a a ar ae 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 FancASM ko ged AE Ee aa 1110 Modem Cable ASM 1120 Water Channel ASM 1130 System Board Contents 1135 Rear Bracket ES 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 ww ww ww ww ee ei Computer Parts Listing LCD Unit Parts Listing LCD Type A LCD Unit Parts Listing LCD Type B Service Tools LL ene AE piece a Peel a Trademarks oe ana cei eh Rn 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 effec tively There are two models of LCD panel used with the ThinkP
16. T does not complete No beeps or error codes messages are indi cated Symptom to FRU Index on page 16 then use table in No Beep Symptoms on page 19 POST beeps but no error codes are displayed Symptom to FRU Index on page 16 POST detected an error and displayed numeric error codes Symptom to FRU Index on page 16 then use table in Numeric Error Codes on page 16 The diagnostic test detected an error and displayed a FRU code Running the Diagnostics on page 23 Other symptoms such as LCD display problems Symptom to FRU Index on page 16 Symptoms cannot be recre ated intermittent problems 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 key board is to be teste
17. The evalu ation and verification of operation in conjunction with other products except those expressly designated by IBM are the responsibility of the user IBM may have patents or pending patent applications cov ering subject matter in this document The furnishing of this document does not give you any license to these patents You can send license inquiries in writing to IBM Director of Licensing IBM Corporation 500 Columbus Avenue Thornwood NY 10594 U S A Trademarks The following terms are trademarks or service marks of IBM Corporation in the United States and other countries IBM PS 2 ThinkPad TrackPoint TrackPoint IV The following terms are trademarks or service marks of other companies as follows Intel Intel Corporation Mylar E I Du Pont de Nemours and Company PCMCIA Personal Computer Memory Card Interface Association Pentium Intel Corporation ThinkPad 240 61 Part Number 09N8590 Printed in U S A
18. ad 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 e The introduction section provides general information guidelines and safety information required to service computers The product specific section includes service refer ence 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 e Read the entire FRU service procedures before replacing any FRUs ThinkPad 240 1
19. ard No beep during POST but system runs correctly Speaker LCD Related Symptoms Symptom Error FRU Action in Sequence LCD backlight not 1 Reseat the LCD connector working 2 LCD FPC ASM LCD too dark 3 LCD inverter LCD brightness 4 LCD cannot be adjusted k 5 System board LCD contrast cannot be adjusted LCD screen unread 1 Reseat the LCD connector able 2 LCD FPC ASM Character missing 3 LCD inverter l n b i 4 LCD creen abnormal 5 System board Wrong color dis played LCD has extra hori 1 LCD FPC ASM zontal or vertical lines 2 LCD inverter ispl displayed 3 LCD 4 System board Keyboard Related Symptoms Symptom Error FRU Action in Sequence Keyboard one or more keys doesn t work 1 2 3 Reseat the keyboard cable Keyboard System board Indicator Related Symptoms ThinkPad 240 19 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 1 Battery during operation 2 AC Adapter 3 System board The system will not 1 Battery ASM power on 2 AC Adapter 3 System board The system will not power off 1 System board Battery can t be charged Battery e System board PC Card PCMCIA Relate
20. d 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 Key board Test See Running the Diagnostics on page 28 for details If the test detects a keyboard problem do the following one at a time to correct the problem Do not replace a non defective FRU 1 Replace the keyboard 2 Replace the system board The following auxiliary input devices are supported for this computer e Numeric keypad e Mouse PS 2 compatible e External keyboard with keyboard mouse cable If any of these devices do not work reseat the cable con nector 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 Slot MB Total Memory MB 32 0 32 32 32 64 32 64 96 32 128 160 64 0 64 64 32 96 64 64 128 64 128 192 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 Goto Diagnostics on the main menu and select Memory Test lf a
21. d Symptoms Symptom Error FRU Action in Sequence System cannot detect the PC Card PCMCIA 1 PC Card PCMCIA slots assembly 2 System board Speaker Related Symptoms Symptom Error FRU Action in Sequence Speakers make noise or no sound comes from system 1 Speaker 2 System board In DOS or Windows multimedia programs no sound comes from the computer 1 Speaker 2 System board Power Management Related Symptoms Symptom Error FRU Action in Sequence The system will not enter hibernation mode 1 Keyboard if control is from the keyboard 2 Hard disk drive 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 FRU Action in Sequence The system will not 1 LED Card ASM R enter suspend mode 2 System board after closing the LCD Battery fuel gauge 1 Remove battery ASM and let does not go higher it cool for 2 hours than 90 2 Refresh battery continue using battery in BIOS Setup mode until power off then charge battery 3 Battery 4 System board System configuration 1 Load Setup Defaults and does not match the reboot the system installed devices System hangs 1 Fan ASM intermittently 2 System board Peripheral Device Related Symptom Symptom Error
22. d 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 2 Pin Voltage V dc 1 15 5 to 17 0 2 Ground If the voltage is not correct replace the AC Adapter If the voltage is within the range do the following e Replace the system board e 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 Do the following 1 Power off the computer 2 Remove the battery ASM and measure the voltage between battery terminals 1 and 5 See the fol lowing
23. d 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 r 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 e 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 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 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 e Never remove the drive while the system is operat
24. f 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 Printer mouse and other external devices Battery ASM Hard disk drive DIMM PC Cards PCMCIA 4 Power on the computer m DO BO D 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
25. 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 Goto 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
26. ft Home arrow Right End arrow Insert Decreases the internal speaker volume Delete Increases the internal speaker volume Back Mutes the internal speaker space Status Indicators The system status LED indicators show the current com puter status The following shows the location of each indi cator symbol and the meaning of each indicator El E El d A DAA OO La Symbol Color Meaning 1 Battery status Green Enough battery power H remains for operation Blinking The battery pack needs orange to be charged Orange The battery pack is being charged 2 Suspend Green The computer is in mode suspend mode Blinking The computer is entering green suspend mode 6 ThinkPad 240 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 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 5 Caps lock Green Caps Lock mode is enabled All alphabetic ZN 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 6 Scro
27. ing or is in suspend mode To remove the hard disk drive 1 Remove the two screws from the hard disk cover 3 Lift as shown to remove the hard disk drive module Size Quan Head amp Step tity Color Torque 1 M2 5 x 7L 2 Flat head 2 5 kgf cm black 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 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 Size Quan Head amp Step tity Color Torque 1 M2 0 x 9L 3 Flat head 2 5 kgf cm black 3 M2 5 x 6L 1 Flat head 2 5 kgf cm silver Note Make sure you use the correct screw for replacement ThinkPad 240 29 1040 Modem Card e 1010 Battery ASM e 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 1050 DIMM Card e 1010 Battery ASM e 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 ThinkPad 240 31 1060 LCD Unit ASM Note Refer to ThinkPad 240 Hardware Maintena
28. inkPad 240 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 e 1010 Battery ASM e 1030 Keyboard e 1150 LCD Bezel ASM e 1160 LCD Inverter ASM e 1170 LCD Panel ASM LCD Type A and B Note When replacing the flex cable in the following pro cedure the labelled face of the cable must face away from the LCD panel 1 Remove the tape from the FPC cable 2 Disconnect the FPC connector from the LCD panel 3 Disconnect the flex cable from the LCD panel ThinkPad 240 51 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 e 1010 Battery ASM e 1030 Keyboard e 1150 LCD Bezel ASM e 1160 LCD Inverter ASM e 1170 LCD Panel ASM LCD Type A and B Remove the tape from the FPC cable 2 Open the fasteners on the FPC cable holder F7 3 Disconnect the FPC connector from the LCD panel 52 ThinkPad 240 1190 Hinge ASM e 1010 Battery ASM e 1030 Keyboard e 1060 LCD Unit ASM e 1150 LCD Bezel ASM 1 Remove the screws as shown 2 Remove the hinge ASM Size Quan Head amp Step tity Color Torque 1 M2 5 x 4L 2 Flat head 3 5 kgf cm silver Note Make sure you use the correct screw for replacement ThinkPad
29. ll lock Green 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 7 Power on Green The computer is opera tional This indicator is always on when the computer is on and not in suspend mode Checkout Guide Use the following procedure as a guide for computer prob lems 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 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 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 Go to Power failure The power on indicator does not go on or stay on Power System Checkout on page 10 then use table in Power Related Symptoms on page 20 POS
30. move keys to interact with the tests 1 Connect the external floppy disk drive to the com puter 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 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 e 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 The arrows are marked in numeric order in square callouts to show the correct sequence of removal e 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 e 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 replace ment make su
31. n 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 com puter using each of the following power sources 1 Remove the battery ASM 2 Connect the AC Adapter and check that power is sup plied 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 e Checking the AC Adapter on page 11 e Checking the Operational Charging on page 11 e 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 e If the power on indicator does not turn on check the power cord of the AC Adapter for correct continuity an
32. nce Manual on page 1 for information on LCD Type A and LCD Type B panel designations e 1010 Battery ASM e 1030 Keyboard Note The Cu tape must be reseated firmly after the LCD unit ASM is replaced El 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 Size Quan Head amp Step tity Color Torque 1 M2 0 x 4L 2 Flat head 2 5 kgf cm black 5 M2 5 x 6 L Flat head 3 5 kgf cm 4 silver Note Make sure you use the correct screw for replacement ThinkPad 240 33 1070 Upper Cover ASM 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 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 a 9 Size Guan Head amp Step tity Color Torque 2 M2 0 x 4L 1 Flat head 2 5 kgf cm black 3 M2 5 x 7L 1 Flat head 2 5 kgf cm black 4 M2 0 x 4L Flat head 2 0 kgf cm black 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
33. o enter standby mode e 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 In suspend mode the following occurs e The LCD is powered off The hard disk drive is powered off e The CPU stops Events that cause the computer to enter suspend mode e 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 indi cator 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 opera tion from suspend mode The Lid is opened The real time clock alarm is signaled e 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
34. om the LCD unit Size Quan Head amp Step tity Color Torque 2 M2 5 x 5L 2 Flat head 2 5 kgf cm black 2A M2 5 x 5L 2 Flat head 1 5 kgf cm black Note Make sure you use the correct screw for replacement ThinkPad 240 47 1160 LCD Inverter ASM e 1010 Battery ASM e 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 3 Remove the inverter card The inverter card is fixed to the rear cover with double sided tape 48 ThinkPad 240 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 e 1010 Battery ASM e 1030 Keyboard e 1150 LCD Bezel ASM e 1160 LCD Inverter ASM To remove the LCD Panel 1 Remove the screws as shown 2 Turn the notebook over remove the CU tape and dis connect the FPC cable 3 Remove the four screws securing the LCD Panel 4 Lift the top cover enough to pass the FPC connector through ThinkPad 240 49 Size Quan Head amp Step tity Color Torque 1 M2 0 x 4L 2 Flat head 2 5 kgf cm black 3 M2 5 x 4L 4 Flat head 3 0 kgf cm LCD silver Type A 3 M2 0 x 4L 4 Flat head 3 0 kgf cm LCD silver Type B Note Make sure you use the correct screw for replacement 50 Th
35. p Defaults in the BIOS Memory size Setup Utility found by 2 DIMM POST dif 3 System board fered from CMOS 02D0 System board System cache error Cache dis abled 02F0 System board CPU ID 02F5 1 DIMM DMA Test 2 System board Failed 02F6 1 DIMM Software NMI 2 System board Failed 02F7 1 DIMM Fail Safe 2 System board Timer NMI Failed Error Messages Symptom Error FRU Action in Sequence Device Address Con flict 1 Load Setup Defaults in BIOS Setup Utility 2 System board Allocation 1 Load Setup Defaults in BIOS Setup Error for Utility device 2 System board Failing Bits 1 DIMM DANN 2 System board Invalid System board System Con figuration Data VO device 1 Load Setup Defaults in BIOS Setup IRQ conflict Utility 2 System board Operating 1 Enter BIOS Setup Utility and see if system not the hard disk drive and diskette drive found A are properly identified 2 Hard disk drive 3 System board 18 ThinkPad 240 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 DIMM System board No beep power on indicator off LCD Battery ASM indicator on LCD blank during POST blank during POST AC Adapter an rin me System board No beep power on Reseat DIMM System bo
36. re 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 rat tling 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 disas semble 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 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 The LCD should be replaced if the number of missing discolored or lighted dots in any backgroun
37. 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 e 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 Inthe 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 com puter system to reduce power consumption and to prolong battery life Standby Mode In standby mode the following occurs e The LCD backlight turns off The hard disk drive motor stops Events that cause the computer t
38. sk Utility 3 Hard disk drive 4 System board 0211 Go to Keyboard and Auxiliary Input Stuck Key Device Checkout on page 9 0211 Go to Keyboard and Auxiliary Input Keyboard Device Checkout on page 9 error 0212 Go to Keyboard and Auxiliary Input Keyboard Device Checkout on page 9 Controller Failed 16 ThinkPad 240 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 DIMM 2 System board 0232 Extended RAM Failed at offset nnnn 1 DIMM 2 System board 0250 System battery is dead System board 0251 System CMOS checksum bad Default con figuration used System board 0260 System timer error 1 Run BIOS Setup Utility to reconfigure the system then reboot the system 2 System board 0270 1 Run BIOS Setup Utility to reconfigure Real time the system then reboot the system clock error 2 System board 0280 1 Load Setup Defaults in the BIOS Previous boot Setup Utility incomplete 2 System board Default con figuration used ThinkPad 240 17 Symptom Error FRU Action in Sequence 0281 1 Load Setu
39. 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 e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM e 1090 Cable ASM and Cable ASM LED R e 1100 Fan ASM e 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 Remove the battery terminal screw Gripping firmly as shown separate the base cover around the sides from the system board ThinkPad 240 43 Size Quan Head amp Step tity Color Torque 1 M2 0 x 4L 5 Flat head 2 5 kgf cm black 2 M2 0 x 6L 2 Flat head 2 0 kgf cm black 3 M2 0 x 4L 1 Flat head 2 0 kgf cm black 4 M2 0 x 8L 1 Flat head 2 0 kgf cm black Note Make sure you use the correct screw for replacement 44 ThinkPad 240 1135 Rear Bracket e 1010 Battery ASM e 1020 Hard Disk Drive e 1030 Keyboard e 1060 LCD Unit ASM e 1070 Upper Cover ASM e 1090 Cable ASM and Cable AS
40. uests for technical information about IBM products should be made to your IBM Authorized Dealer or your IBM Marketing Representative Copyright International Business Machines Corpo ration 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 0 4 What to Do First How to Disable the Password Product Overview 2 4 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 VO 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
41. ve 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 e 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 No overriding capability is provided so it cannot be replaced if they are forgotten If the cus tomer 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 Description Processor Intel Celeron processor 366 MHz 128KB L2 cache Bus architecture PCI Bus Memory 64 MB SDRAM onboard only 32 MB 64 MB or 128 MB DIMM card max 192 MB BIOS ROM
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