FRU Removals and Replacements (TP-770 - 9548/49)
FRU Removals and Replacements
- Do not damage any parts. Only certified and trained personell should service the computer.
- The arrows in this section show the direction of movement to remove a FRU, or turn a screw to release
the FRU. The arrows are marked in numeric order, in square callouts, to show the correct sequence
- 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
- When replacing a FRU, use the correct screw size, as shown in the procedure.
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.
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.
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.
An electrostatic discharge (ESD) strap must be used to establish personal grounding.