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Service Hints & Tips

Document ID: GSMH-3CVEWN

This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose.

Notebook CL57SX - FRU Removals And Replacement

Applicable to: World-Wide

FRU Removals and Replacements:
Follow the numerical sequence in the FRU removal sequence list and the exploded view to remove or disconnect parts in the correct order. The letters in parentheses in the list indicate screw types. See the - 'Screw Size Chart' - to match the letters to the correct screw type and size before replacing each screw.

Safety Notice 8:
Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables.

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 electrical shorts.

1

Battery Cover

2

Battery Pack

3

Hinge Covers

4

Six Screws (4-EE, 2-C)
(One at each bottom corner and two through extensions at bottom of LCD)

5

LCD Rear Cover
(To separate panel from rear cover, place screwdriver in small slit in bottom front of LCD panel and release latch.) Two Cables from LCD Assembly

6

Four Screws (LL)
(Two on each side)
LCD Assembly

7

Bend Back Thirteen LCD Panel Tabs
Four LCD Panel Screws (MM)
(From back of panel)

8

Separate LCD Panel and LCD Bezel

9

Three Bottom Cover Screws (LL)
(At bottom-front)

10

Keyboard Frame

11

Two Screws (MM)
(At rear of keyboard)

12

Loosen Keyboard

13

Four Screws (MM)
(Look for 13 four times in illustration.)

14

Loosen Top Cover

15

Two Ribbon Cables
Keyboard (Keyboard can be removed without removing top cover. However, keyboard cables cannot be reconnected with top cover installed.)
Trackball Cable
(At right-rear of keyboard)

16

Indicator Card Cable
Top Cover
(See step 14. Ensure that keyboard is removed before removing top cover.)

17

Two Trackball Assembly Screws (LL)

18

Trackball Assembly

19

Speaker Cable

20

Four Screws (LL)
(Two indicator card screws from rear and two speaker retainer bracket screws from bottom)

21

Indicator Card (When replacing indicator card, ensure that speaker volume switch and power-on switch fit into their respective slots in top cover.)

22

Speaker

23

Two Diskette Drive Ribbon Cables

24

Four Diskette Drive Screws (LL)
Micro Switch Cable

25

Diskette Drive and Mounting Bracket

26

Two Hard Disk Drive Ribbon Cables

27

Four Hard Disk Drive Screws (LL)

28

Hard Disk Drive and Mounting Bracket
(Have customer backup all information on hard disk drive before removal. When replacing hard disk drive, use customer's backup Reference Diskette to restore system partition.)

29

Backup Battery

30

Keyboard Control Card Ribbon Cable
Three Keyboard Control Card Screws (NN)

31

Keyboard Control Card

32

Display Control Card Ribbon Cable
(Press and hold metal clips on each side of cable connector.)

33

Two Display Control Card Screws (LL)

34

Display Control Card

35

Two Hinge Support Screws (LL)
(On hinge support)

36

Six Screws (4-PP, 2-QQ) and Hinge Assemblies
(Three screws on each side)

37

Loosen Hinge Support Two Regulator Card Cables

38

Three Regulator Card Screws (LL)

39

Regulator Card

40

Two I/O Connector Ribbon Cables

41

Two Threaded Spacers

42

Three Modem Guide Screws (V)

43

Two Threaded Hex Spacers (At each end of system board)

44

Voltage Converter Cable

45

System Board Cable (upper left)
System Board and Mounting Bracket
(When installing system board, ensure that power control switch on I/O panel is set to On. Also, run Automatic Configuration and set time and date. Transfer math coprocessor (if installed) to new system board.)
IC DRAM Card Connector
(Connected under system board.)

46

Two I/O Connector Screws (LL)

47

I/O Connectors and Cover

48

Six Voltage Converter Card Screws (SS)

49

Two Threaded Spacers
(On voltage converter card)
Battery Cable

50

Voltage Converter Card
(Be careful to use correct screws to replace voltage converter. Bottom cover can be cracked.)




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Hint Category

Hardware Maintenance Information

Date Created

31-12-96

Last Updated

15-04-98

Revision Date

02-04-99

Brand

IBM ThinkPad

Product Family

Notebook CL57SX

Machine Type

8554

Model

TypeModel

Retain Tip (if applicable)

N/A

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