2 Troubleshooting Procedures

2.4 System Board Troubleshooting

Table 2-3 D port status (8/9)

Dport status

Inspection items

Details

 

 

 

Setting up the address of font data for resume

 

 

 

password

 

 

 

 

 

 

 

Setting up the parameters for character repeat

 

 

 

on a USB keyboard

 

 

 

 

 

 

 

Final check of key input during IRT

 

 

 

 

 

 

 

Storing of T_SHADOW_RAM_SIZE

 

 

 

 

 

 

 

Update of system resource before boot

 

 

 

 

 

 

 

Rewriting memory map data for INT15h E820h

 

 

 

function

 

 

 

 

 

 

 

Waiting for AC-Link initialization completion

 

 

 

 

 

 

 

Updating of table for DMI

 

 

 

 

 

 

 

Waiting for AC-Link initialization completion

 

 

 

 

 

 

 

Waiting for the end of writing PSC version on

 

 

 

BIOS

 

 

 

 

 

 

 

Waiting for clock generator setting completion

 

 

 

(Stops in “F121H” when an error is detected)

 

 

 

Waiting for the end of serial port initialization

 

 

 

(for models supporting SIO)

 

 

 

 

 

 

 

Canceling NMI mask

 

 

 

 

 

 

 

Clearance of the checksum of TIT

 

 

 

 

 

 

 

Clearing IRT running flag for runtime

 

 

 

 

 

 

 

Update checksum for runtime

 

 

 

 

 

 

 

Hibernation branch (for models supporting BIOS

 

 

 

Hibernation)

 

 

 

 

 

 

 

Initialization of Bluetooth (for models supporting

 

 

 

Bluetooth)

 

 

 

Check of existence of supported maintenance

 

 

 

cards

 

 

 

 

 

 

 

Prohibition unused PC cards

 

 

 

 

 

 

 

Setting of WAKEUP status data for ACPI

 

 

 

 

 

 

 

HW initialization before Boot,

 

 

 

Waiting for initialization completion

F122H

IRT_SC_INIT_START

 

 

 

 

 

F123H

IRT_SC_INIT_END

 

 

 

 

 

 

Notify the DVI connection status to VGA

(for models supporting DVI)

 

BIOS

 

 

 

 

 

 

Setting up battery safe mode

 

 

Setting up date

 

 

 

 

 

 

 

 

 

 

Waiting for the end of Bluetooth

 

(for models supporting Bluetooth)

 

initialization

 

 

2-26

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Satellite A50S/TECRA A3X Maintenance Manual (960-534)

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Toshiba A3X manual Port status Inspection items Details