IBM 390E manual System Board

System Board

Ÿ	“Battery ASM”	on	page 62
Ÿ	“Hard Disk Drive” on page 63
Ÿ	“Combo Bay”	on	page 64

Ÿ“Keyboard” on page 70

Ÿ	“LED	Board”			on	page 72
Ÿ	“Upper		Heatsink”				on	page 73
Ÿ	“CPU	Board”			on	page 75
Ÿ	“LCD	Panel	ASM”		on	page 76
Ÿ	“Upper		Cover		ASM”		on	page 78
Ÿ	“IMM	Lower		Heatsink			ASM” on		page 80
Ÿ	“Fan	ASM”	on	page 81
Ÿ	“Power Latch,				IR		Board,		and DC-DC & BATT Board”
	on	page 83

Note: See “Replacing the system Board” on page 61 before proceeding.

Remove the two screws from the system board and gently remove the system board from the base cover ASM.

	Size	(Quan-	Head	&
Step	tity)		Color			Torque
1	M2.5	x 6L	(2) Pan	head,		3.2	kgf-cm
			black
Note:	Make	sure	you use	the	correct		screw for replacement.

84 ThinkPad 390E