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Service Hints & Tips |
Document ID: RJJR-3SNMP6 |
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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. |
TP 770 - FRU Removals and Replacements
Applicable to: World-Wide
- Do not damage any parts. Only certified and trained personnel should service the computer.
- The arrows in the diagrams show the direction of movement 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.
- When other FRUs that 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. See Locations for internal cable connections and arrangement information.
- When replacing a FRU, use the correct screw size, as shown in the procedure.
CAUTION:
Before removing any FRU, power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.
CAUTION:
The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack as required by local ordinances or regulations.
Attention:
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 short circuits.
Attention:
The system board is sensitive to, and can be damaged by, electrostatic discharge. Establish personal grounding by touching a ground point with one hand before touching these units.
An electrostatic discharge (ESD) strap must be used to establish personal grounding.
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Hint Category |
Hardware Maintenance Information | |
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Date Created |
30-11-97 | |
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Last Updated |
31-03-98 | |
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Revision Date |
17-03-99 | |
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Brand |
IBM ThinkPad | |
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Product Family |
ThinkPad 770 | |
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Machine Type |
9548, 9549 | |
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Model |
various | |
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TypeModel |
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Retain Tip (if applicable) |
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Reverse Doclinks |