IBM 390E manual FRU Removals and Replacements, Safety Notice 1 Translation on, Service

FRU Removals and Replacements

This section contains information about removals and replacements.

ŸDo not damage any parts. Only certified and

personnel should service the computer.

ŸThe arrows in this section show the direction

ment	to remove	a FRU,	or	to turn a screw to
the	FRU. The	arrows	are	marked in numeric or

square callout, to show the correct sequence removal.

ŸWhen other FRUs must be removed before the FRU is removed, they are listed at the top page.

Ÿ To	replace	a	FRU,	reverse the	removal proced
and	follow	any	notes	that pertain	to replaceme

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

Safety Notice 1: Translation on page 4

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

	Safety	Notice	3: Translation		on	page	6
The	battery		pack	contains		small amounts of		nickel.
Do	not	disassemble		it,	throw		it into fire or w
short-circuit it. Dispose of							the battery pack
required by			local	ordinances			or regulations.

		Safety	Notice 8: Translation on page 10
Before			removing any FRU, power-off the					computer
unplug all power				cords	from electrical		outlets, r
the battery pack, and then disconnect any inter
necting			cables.
An	electrostatic			discharge (ESD)		strap	(P/N 6405959)
be		used	to establish		personal	grounding.
FRU		Service	Procedures

Review the following procedures before replacing FRU.

60 ThinkPad 390E