IBM 1400 (2611) manual 39Part, Symptom/Error

ThinkPad i Series 1400

No beep, power-onŸ Power source (battery and indicator turns on and adapter). See “Power

LCD is blank.Systems Check” on page 25.

Ÿ Power source (battery and andadapter). See “Power

Systems Check” on page 25.

No beep, power-on indicator turns off LCD is blank.

Symptom/Error		FRU/Action in		Sequence
Insert		system disketteŸ	Ensure	that	"System		Boot
and	press<Enter>		Drive" in the "System Secu-
key	to	reboot.	rity"	menu	of	the	BIOS	Utility
			is not set to [Drive A].
		Ÿ	Ensure the diskette drive con-
			figuration		in the "Basic
			System	Settings"		menu	of	the
			BIOS Utility is not set cor-
			rectly.
		Ÿ	Diskette drive			cable
		Ÿ	Diskette drive
		Ÿ	Hard	disk	connection		board
		Ÿ	Hard	disk	drive
		Ÿ	System board

ŸEnsure every connector is connected tightly and cor- rectly.

ŸCharger board

ŸBattery pack

ŸAC Adapter

ŸSystem board

						Ÿ	Reconnect			the	LCD connector
						Ÿ	Charger board
						Ÿ	Processor board
						Ÿ	Reconnect			the	DIMM.
						Ÿ	System board
No beep, power-on						Ÿ	Reconnect the LCD connec-
indicator			turns		on	and	tors.
LCD	is	blank.		But		Ÿ	LCD	inverter ID
you can			see		POST
						Ÿ	LCD	LVDS	board		(for
on	an	external			CRT.
							13.3–inch			LCD)
						Ÿ	LCD	FPC	cable
						Ÿ	LCD inverter
						Ÿ	LCD
						Ÿ	System board
No beep, power-on						Ÿ	Ensure every connector is
indicator			turns		on	and	connected tightly and cor-
a	blinking		cursor				rectly.
shown		on	LCD	during		Ÿ	System board
POST.

39(Part I)