IBM 1400 (2611) manual Safety Notice

FRU Removals and Replacements

This section contains information about removals and replacements.

ŸDo not damage any parts. Only certified and tr

personnel should service the computer.

Ÿ The	arrows in	this section	show the		direction	o
ment	to remove	a FRU, or	to turn	a	screw to	r
the FRU. The arrows are			marked	in numeric orde
square callout, to show the correct					sequence	o
removal.

ŸAny FRUs that must be removed before removing t

failing FRU are listed at the top of the pag

Ÿ To replace	a	FRU, reverse the removal		procedur
and follow any notes that pertain to replacement.
“Locations”	on	page 178 for internal	cable	con-
nections and		arrangement information.

ŸWhen replacing a FRU, use the correct screw s shown in the procedure.

Safety Notice 1

Before the computer is powered on after FRU re ment, make sure all screws, springs, or other small parts, are in place and are not left loose insid computer. Verify this by shaking the computer and tening for rattling sounds. Metallic parts or metal can cause electrical short-circuits.

	Safety Notice	3
The battery		pack contains small amounts nickel. Do
not disassemble it, throw it into fire or water,
circuit it.		Dispose the battery pack as require
ordinances or		regulations.

Safety Notice 8

Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remo the battery pack, and then disconnect any interco necting cables.

Attention: The system board is sensitive and can b damaged by electronic discharge. Establish persona grounding by touching a ground point with one hand before touching these units. An electrostatic disc (ESD) strap must be used to establish personal grounding.

An electrostatic discharge (ESD) strap (P/N: 6405959) must be used to establish personal grounding.

140 ThinkPad i Series 1400 HMM