2.4 System Board Troubleshooting

2 Troubleshooting Procedures

Table 2-4 Debug port (Boot mode) error status (7/9)

D port status

Inspection items

Details

 

 

 

F10Dh

INIT_NDP

(Initialization of NDP)

 

 

 

F10Eh

INIT_SYSTEM

Storing of CMOS error status to

 

(Initialization of system)

IRT_ERR_STS_BUF

 

 

 

 

CD POWER SW control

 

 

(for models supporting CD Play function)

 

 

 

 

 

Timer initialization start

 

 

 

 

 

EC initialization & Reading of battery

 

 

information

 

 

 

 

 

Update of system BIOS (Update of EDID

 

 

information for LCD)

 

 

 

F10Fh

INIT_DISPLAY (Waiting for VGA

Waiting for VGA power-on

 

chip initialization completion,

 

 

Waiting for Display access completion

 

VGA BIOS initialization)

 

 

 

 

 

F110h

Calling VGA BIOS

 

 

 

 

F111h/F112h

DISP_LOGO

Displaying logo

 

 

 

F113h

SYS_MEM_CHECK (boot mode)

Check of convention memory

 

 

 

F114h

EXT_MEM_CHECK (boot mode)

Check of exception in the protected mode

 

 

 

F115h

Check of exception in the

DPORT=F116h when error occurs

 

protected mode

 

 

 

 

 

INIT_SYS_MEM (reboot mode)

Initialization of conventional memory

 

 

 

F117h

CHK_DMA_PAGE (boot mode)

Check of DMA Page Register

 

 

 

F118h

CHECK_DMAC (boot mode)

Check of DMAC

 

 

 

F119h

INIT_DMAC (boot mode)

Initialization of DMAC

 

 

 

F11Ah

CHECK_PRT (for models

Check of printer port existence

 

supporting printer)

 

 

 

 

F11Bh

CHECK_SIO (for models

Check of SIO

 

supporting SIO)

 

 

 

 

F11Ch

BOOT_PASSWORD

Waiting for FDD initialization completion (for

 

(password check)

models supporting built-in FDD)

 

 

 

 

 

(In the case of “Reboot”)

 

 

Waiting for HDD initialization completion

 

 

Check of key input during IRT (waiting for

 

 

KBC initialization completion)

 

 

I/O LOCK process (for models supporting

 

 

I/O lock)

 

 

ATA priority initialization

 

 

 

2-26

QOSMIO F10 Maintenance Manual (960-498)

Page 74
Image 74
Toshiba qosmio f10 manual Debug port Boot mode error status 7/9, Irterrstsbuf