dynabook Portege X30L-K Series, Руководство по обслуживанию

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Maintenance Manual (960-948) 4-4
Replacement Procedures
4.2 Before You Begin
Take note of the following points before starting work. Always remove the
AC adaptor and battery pack before commencing any of the procedures.
The procedure for removing the battery pack is described in 4.12 Battery
pack .
1. Do not disassemble the computer unless it is operating abnormally.
2. Use the recommended tools.
3. Ensure that the environment for working on and storing parts does not
contain any of the following.
■ Dust or dirt
■
Static electricity
■ Extremely hot, cold, or humid conditions
4. Perform the diagnostic tests described in Chapter 2 to identify the FRU
that has probably caused the system failure.
5. Do not perform any unnecessary work. Always work in accordance with
the disassembly and re-assembly procedures in this manual.
6. Keep parts removed from the computer in a safe place away from the
computer where they will not be damaged or interfere with your work.
7. Disassembling requires the removal of a large number of screws. Keep
removed screws in a safe place such that you can determine which
screws belong to which part.
8. When re-assembling, ensure that you use the correct screws and fit
parts in the correct position. Screw sizes are noted in the text and
figures.
9. As all parts have sharp edges and corners, take care not to cut yourself.
10. After replacing an FRU, check that the computer and replaced part
operate correctly.
4.3 Disassembly Procedure
Four main types of cable connector are used.
■
Pressure plate connector
■ Spring connector
■
Back flip connector
■ Normal pin connector
For pressure plate connectors, slide the pressure plate holding tags on
both sides of the plastic pressure plate on the connector and pull the cable
out from the connector. When reconnecting the cable to the pressure plate
connector, slide the pressure plate holding tags on both sides of the plastic
pressure plate on the connector and insert the cable into the connector.
Push both tags of the pressure plate such that the cable is fixed in the
correct position. Pull the cable to ensure that it is securely connected.