Toshiba Tecra A8 Maintenance Manual - Page 88

2 Troubleshooting Procedures 2.4 System Board Troubleshooting Table 2-4-2 Debug port (Boot mode) error status (7/9) D port status Inspection items Details (F10F) Timer initialization start EC initialization & Reading of battery information F110 Waiting for VGA chip initialization completion, VGA BIOS initialization Update of system BIOS (Update of EDID information for LCD) Waiting VGA power on 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 DPORT=F117h when error occurs mode 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) F11E BOOT_PASSWORD (Check of password) 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) I/O LOCK process (model supporting I/O LOCK) 2-40 [CONFIDENTIAL] TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)