Toshiba A10 manual Printer port LED resume mode error status 1/4

2 Troubleshooting Procedures 2.4 System Board Troubleshooting

Table 2-5 Printer port LED resume mode error status (1/4)

LED Status	Test item	Contents
00h	Refer to IRT printer LED error status.
01h	Refer to IRT printer LED error status.
02h	Refer to IRT printer LED error status.
03h	Refer to IRT printer LED error status.
	Clears flag for SMI control.
	Renewal of Resume counter
1F	Checks the WakeUp factors.
	Rewriting of SMRAM BASE
20h	Initializing devices necessary for	Initializing of PIT
	initialization before initializing	Initializing of PIT channel 0 (Sets the interval of
		timer interruption to 55ms)
	PCI bus (1)	Initializing of PIT channel 2 (Sets the sound
		generator frequency to 664Hz)
		Measuring CPU clock
		Permission of SMI other than auto-off function
		Control of battery discharging current (1CmA)
		Dividing for measuring of IRT time
		Setting to clock generator
		Check of parameter block A
		Initializing of CP
		Updating P6 micro-code
		Check of supporting Geyserville
		Sets the CPU clock to High.
		Setting of Graphics Aperture Size
	Recovery of PIC register
	Initialization of devices necessary for	AC'97 control
	initialization before initializing	Initializing of temperature control information
	PCI bus (2)	Initializing of KBC
		VGA display-off and Reset control, Starts VGA
		recovery.
		Initializing of sound
		Acquires the multi-box status.
	Initializing of HC , recognizing of USB devices connection and initializing the USB devices

2-34 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)