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Symptom/Error

FRU/Action

17XX
(not listed above)

1. Hard Disk Drive

  2. System Board

3. Hard Disk Drive Cable

24XX

  1. System Board

5001 to 5016

  1. System Board

5017 to 502X

  1. System Board

2. LCD Display Assembly

503X

1. External CRT Display

  2. System Board

8601, 8602

  1. Pointing Device
  2. System Board
  3. Numeric Keypad

8604

  1. System Board

86XX
(not listed above)

  1. System Board
  2. Pointing Device
  3. Numeric Keypad

101XX
(See “Fax/Modem
Checkout” on page 466
before replacing any FRUs.)

  1. Internal Data/Fax

Modem

  2. System Board

3. Any serial device

102XX

  1. System-Status

Display Assembly

  2. System Board
  3. Related device

 Undetermined Problem

You are here because the diagnostics tests did not identify
the failing FRU.

Check the power supply in use (see “Power Systems
Checkout” on page 27). If the power systems are
operating correctly, return here and continue with the
following procedure.

1. Power-off the computer and remove the battery packs

from the computer.

2. Remove or disconnect one of the following devices or

adapter (do not isolate FRUs that are known to be
good).
  a. Non-IBM devices

b. Modem, printer, mouse, or other external device

c. IC DRAM card

d. Hard disk drive (fixed disk drive) or diskette drive
e. Any adapter and device.

3. Power-on the computer and start the system program.
4. If the symptom remains, repeat steps 2 and 3 until

you find the failing FRU or until all FRUs have been
removed.

5. If all of the FRUs listed have been removed and the

problem remains, replace the system board.

36

IBM Mobile Systems HMM - Volume 1 

 

Содержание 8543

Страница 1: ...ut 27 Symptom to FRU Index 32 Undetermined Problem 36 Related Service Procedures 37 Checking Installed Devices 37 Power on Password 37 How to Run Advanced Diagnostics 37 Product Overview 38 FRU Removals and Replacements 39 Locations 42 Parts Listing 43 Copyright IBM Corp 1995 23 ...

Страница 2: ...1 second Note Some icons remain on after 1 second 2 Memory counts 3 One or two short beeps 4 The Speaker icon starts blinking and continues blinking until any key is pressed 5 The IBM Logo is displayed on the screen DID YOU RECEIVE THE CORRECT RESPONSES Yes No 004 Go to Symptom to FRU Index on page 32 005 Advance to the Main Menu Press Ctrl A then type 0 to run the tests DID YOU RECEIVE AN ERROR M...

Страница 3: ...memory module kits in connectors 1 and 2 if installed Note which memory module kit is in connector 1 Run the memory tests Use the RUN TESTS ONE TIME option DID THE MEMORY TESTS END WITHOUT AN ERROR Yes No 002 Replace the system board 003 DID YOU REMOVE THE MEMORY MODULE KIT IN CONNECTOR 1 Yes No 004 Go to Step 007 005 Reinstall the memory module in connector 1 Run the memory test Use the RUN TESTS...

Страница 4: ...on DID THE MEMORY TESTS END WITHOUT AN ERROR Yes No 010 Replace the memory module in connector 2 If that does not correct the problem replace the system board 011 Check if the actual memory size of the memory module is different from the displayed memory size on the screen If the problem occurs intermittently run the memory tests multiple times to have an error log 26 IBM Mobile Systems HMM Volume...

Страница 5: ...pages Testing the AC Adapter on page 29 Testing the Rechargeable Battery on page 29 Testing the Backup Battery on page 30 Testing the Standby Battery on page 30 Testing the Quick Charger on page 31 None of the above Follow the steps below 001 DID THE PROBLEM OCCUR ONLY WHEN USING THE AC ADAPTER Yes No 002 Go to Step 004 003 Go to Testing the AC Adapter on page 29 If that does not correct the probl...

Страница 6: ...ors 1 and 2 Internal Data Fax Modem adapter Serial adapter Numeric keypad TrackPoint Mouse External keyboard External CRT display Cables to the hard disk drive Cables to the diskette drive Power cable to the LCD Signal cables to the LCD Connect the AC adapter and power on the computer DID YOU HEAR ONE LONG OR TWO SHORT BEEPS Yes No 012 Replace the system status display to verify the fix If the pro...

Страница 7: ...ltage is not correct replace the AC adapter Testing the Rechargeable Battery 1 Remove the keyboard 2 Set the rechargeable battery in place without connecting any external power devices 3 Measure the voltage between terminals 1 and 2 and note the voltage 1 4 Using the AC adapter apply external power to the computer Make sure that a charge arrow appears in the system status display 5 Measure the vol...

Страница 8: ...kilohms If the resistance is out of range replace the rechargeable battery Testing the Backup Battery 1 Remove the keyboard and the top cover 2 Measure the voltage at the connectors of the backup battery 1 2 If the voltage is not correct the backup battery is discharged by a short circuit or is defective Testing the Standby Battery Note The charging time required is 48 hours 1 Remove the keyboard ...

Страница 9: ...ective If the voltage is the same as measured in Step 3 or less than 3 0 V dc replace the standby battery If the problem remains replace the system board Testing the Quick Charger If a noise can be heard from the operating quick charger replace it 1 Perform steps 6 through 8 on page 30 of the Testing the Rechargeable Battery to verify the rechargeable battery for correct operation 2 Plug the quick...

Страница 10: ...2 Any options or devices 3 Power source when failing 4 Speaker No beep with a normal display during POST 1 Speaker 2 System Board Continuous beep 1 System Board 2 Any options or devices Repeating short beeps See External Keyboard Auxiliary Input Device Checkout on page 465 before replacing any FRUs 1 System Board 2 Keyboard Dew Point or Temperature icon appears with one long and one short beep 1 S...

Страница 11: ...r does not power off 1 System Status Display Assembly 2 System Board Real time clock inaccurate 1 System Board Printer problems 1 See Printer Checkout on page 468 Serial or parallel port device problems 1 Device 2 Cable 3 System Board ICON is incorrectly blinking or stays on 1 System Board 2 Related Device ICON incorrectly remains off but diagnostics runs without an error 1 System Board 2 Related ...

Страница 12: ...3 Diskette Drive 4 Hard Disk Drive 5 Math Coprocessor 6 Diskette Drive Cable 7 Hard Disk Drive Cable 163 1 Time and Date Set 2 System Board 164 See Memory Checkout on page 25 before replacing any FRUs 1 Run Automatic Configuration 2 Memory Module Kits 3 System Board 199 1 See Checking Installed Devices on page 37 1XX not listed above 1 System Board 211 on POST 1 System Board 2 Memory Module Kits 2...

Страница 13: ...oard 602 653 654 1 Defective diskette 2 Diskette Drive 3 System Board 655 660 661 1 System Board 6XX not listed above 1 Diskette Drive 2 System Board 3 Diskette Drive Cable 7XX 1 Math Coprocessor 2 System Board IBM does not supply a math coprocessor 9XX 1 System Board 2 Any parallel Device 3 Communication Cable 1107 1 Communication Cable 11XX 1 System Board 2 Any serial adapter 3 Communication Cab...

Страница 14: ...nostics tests did not identify the failing FRU Check the power supply in use see Power Systems Checkout on page 27 If the power systems are operating correctly return here and continue with the following procedure 1 Power off the computer and remove the battery packs from the computer 2 Remove or disconnect one of the following devices or adapter do not isolate FRUs that are known to be good a Non...

Страница 15: ... supply voltage is incorrect see Power Systems Checkout on page 27 If the adapter is on the list run the adapter diagnostics tests If the list contains an adapter or device that is not installed go to Undetermined Problem on page 36 Power on Password Important This information is not available in this HMM online format See your IBM Servicer or IBM Authorized Dealer for this procedure How to Run Ad...

Страница 16: ...ides a brief overview of the computer features Feature Description Processor MHz 386SX 20 Mhz Bus Architecture AT Bus Memory Standard 2MB Memory Maximum 18MB Video VGA Diskette Drive 3 5 inch Hard Drive 60MB 38 IBM Mobile Systems HMM Volume 1 ...

Страница 17: ...e computer and listening for rattling sounds Metallic parts or metal flakes can cause electrical shorts 1 Battery Pack 2 Three Screw Covers and Three Screws C 3 Loosen Keyboard Assembly Raise front until it clears case 4 Two Ribbon Cables and Keyboard Slide keyboard forward and flip it over in front of computer 5 Three Top Cover Screws C Inside right and left rear access doors along top edge 6 Two...

Страница 18: ...ive Have customer backup all information on hard disk drive before removal 26 External Adapter and Battery Doors 27 Eight System Board Screws F 28 One Screw C Inside right rear access door 29 Two Threaded Hex Spacers Inside right rear access door Remaining System Board Cables 3ð System Board When replacing system board install old memory module kits and math coprocessor on new system board Run Aut...

Страница 19: ...Model L40 Exploded View 31 21 11 30 20 10 1 2 3 4 5 6 7 8 9 22 13 23 14 24 15 25 16 26 17 27 27 18 28 19 29 12 Model L40 SX 8543 41 ...

Страница 20: ...onnector 8 Memory Module Connector 1 9 Memory Module Connector 2 1ð Speaker Connector 11 Keyboard Connectors 12 Password Override Connector 13 Switch Assembly Connector 14 System Status Display Connector 15 Option Connector 16 Hard Disk Drive Connectors 17 Display Signal Connectors 18 Suspend Resume Switch Connector Top View 2 3 4 5 6 7 8 9 0 2 5 16 17 18 4 3 42 IBM Mobile Systems HMM Volume 1 ...

Страница 21: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 13 17 18 Model L40 SX 8543 43 ...

Страница 22: ...l Serial Adapter 79F3868 11 Backup Battery Lithium 79F0986 13 Shield Battery 79F3891 14 Standby Battery 79F0992 15 Door Bus Connector 79F3886 16 Door Battery 79F3887 17 Door I O Connector 79F3885 18 Rechargeable Battery 79F0994 18 Rechargeable Battery Switzerland only 79F3881 System Board Fuse Card 95F6731 Miscellaneous Kit screws rubber bumpers and bottom cover caps 79F3894 Index 5 Diskette Drive...

Страница 23: ...te Drive Adapter 72X6757 Game Control Adapter 8529151 PC Network Adapter 8286171 PC Network Adapter II 72X8105 PC Network Baseband Adapter 72X8101 PhoneCommunicator Adapter 33F4846 PhoneCommunicator Cable Black L 57F1261 PhoneCommunicator Cable Black S 57F1262 PhoneCommunicator Cable Beige L 57F1263 PhoneCommunicator Cable Beige S 57F1264 Printer Cable 8529214 Quick Charger 79F0995 Realtime Interf...

Страница 24: ...guese 1396819 Spanish 1396820 Spanish Speaking 1396811 Swedish Finish 1396821 Swiss French 1396822 Swiss German 1396823 Turkish 1396829 U K English 1396824 U S English 1396181 U S 1396182 Arabic 1396806 Canadian French 1396800 French 1396801 German 1396802 Greek 1396807 Italian 1396803 Spanish 1396804 Swedish Finland 1396805 Swiss French 1396809 Swiss German 1396808 Trackpoint Model L40 SX 1397090...

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