Toshiba Satellite Pro A120, Maintenance Manual

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2 Troubleshooting Procedures 2.4 System Board Troubleshooting
2-40 [CONFIDENTIAL] TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
Table 2-4-2 Debug port (Boot mode) error status (7/9)
D port status Inspection items Details
Timer initialization start
EC initialization & Reading of battery information
(F10F)
Update of system BIOS (Update of EDID information
for LCD)
Waiting VGA power on F110 Waiting for VGA chip initialization
completion, VGA BIOS
initialization
Waiting completion of display access
F111
Call VGA BIOS
F113 DISP_LOGO (Displaying logo) Start of waiting logo display DPORT=F125 (not
used)
F114 SYS_MEM_CHECK (Check of convention memory)(Boot)
F115 EXT_MEM_CHECK (Check of exception in the protected mode)(Boot)
Exception check in the protected
mode DPORT=F117h when error occurs
F116 INIT_SYS_MEM Initialization of conventional memory (Reboot)
F118 CHK_DMA_PAGE (Check of DMA Page Register) (Boot)
F119 CHECK_DMAC (Initialization of DMAC) (Boot)
F11A INIT_DMAC (Initialization of DMA) (Boot)
F11B CHECK_PRT (Check of printer existence) (For models supporting
Printer port)
F11C CHECK_SIO (Check of SIO) (model supporting SIO)
F11D Displaying the result of
DIAGNOSTIC
(When the DIAGNOSTIC mode is permitted)
Waiting for FDD initialization completion in Reboot
mode (model with built-in FDD)
Waiting for HDD initialization completion
Check of key input during IRT (waiting for KBC
initialization completion)
I/O LOCK process (model supporting I/O LOCK)
Initialization of ATA priority in Boot mode
Key input check during IRT (waiting here completion
of KBC initialization)
Input password (Waiting completion of HDD
initialization)
F11E BOOT_PASSWORD (Check of
password)
I/O LOCK process (model supporting I/O LOCK)