Toshiba A40 manual LED Status Test item Contents

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED status (8/8)

LED Status	Test item	Contents
(1Ch)	(PRE_BOOT_SETUP)	Updating of table for DMI
		Copy of ACPI table to top of expansion memory
		Waiting for completion writing of PSC version to BIOS
		Waiting for clock generator setting completion (The
		system halts in LED = 1DH when an error is detected.)
		Waiting for serial port initialization completion (for models
		supporting SIO)
		Waiting for Serial Port initialization completion
		Cancel of NMI Mask
		TIT check sum
		Clearance of the IRT flag of Runtime side
		Update of check sum of Runtime side
		Hibernation branch
		Initialization of Bluetooth
		Check of existence of object maintenance cards
		Prohibition of unused PC cards
		HW initialization before Boot, Waiting for initialization
		completion
		Notifies the DVI connection status to VGA BIOS
		Setting of battery save mode
		Setting of date
		Waiting for Bluetooth initialization completion
		Update of DMI Wakeup factor, Update of SM-BIOS
		structure table
		PCI device configuration space close
		Cache control
		Update of parameter block A
		Process for CPU (Make the CPU clock to be set by
		SETUP)
		Waiting of motor-off completion of disabled HDD
		Final decision of USB FDD drive information
		Post processing of PRE_BOOT_SETUP
		Clearance of PWRBTN_STS
		Enabling POWER Button
20h		Clearance of IRT status
		Update of check sum of Runtime side

2-30 Satellite A40 Maintenance Manual (960-458)