User Guide

2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Table 2-3 D port status (7/9)
D port status Inspection items Details
F10Eh INIT_SYSTEM
(Initialization of system)
Storing CMOS error information in IRT_ERR_STS_BUF
Timer initialization start
Initializing an EC, and reading battery information
Updating system BIOS (Updating EDID of the LCD)
F10Fh Initializing the display Waiting for VGA chip initialization completion
F110h Initializing VGA BIOS
F112h Displaying a logo Displaying a logo on the screen
F113h SYS_MEM_CHACK Checking conventional memory (Boot)
F114h EXT_MEM_CHECK Exception check in protect mode (Cold boot only)
F115h INIT_SYS_MEM Initializing conventional memory (Reboot)
(DPORT=F114H if an error
occurred during exception check
in protected mode)
F117h CHK_DMA_PAGE Check of DMA page Register (Cold boot only)
F118h Checking a DMAC Checking a DMAC (Boot)
F119h Initialization of DMA Initializing DMA (Cold boot only)
F11Ah CHECK _PRT Checking a printer port existence (for models supporting
PRT)
F11Bh Checking SIO Checking a SIO port (for models supporting SIO)
F11Ch BOOT_PASSWORD Check of password
Waiting for the end of the FDD initialization process (for
models supporting built-in FDD)
(In the case of “Reboot”) Waiting for the end of the HDD initialization
Checking key input during IRT (Waiting for KBC
initialization completion
ATA priority Initialization
(In the case of “Boot”) BM loading process (for models supporting fingerprint
certification function)
Initializing BM (for models supporting fingerprint
certification function)
Check of key input during IRT (waiting for KBC
initialization completion)
Input of password
BM open (for models supporting fingerprint
certification function)
F11Dh Checking optional I/O ROM Checking optional I/O ROM
Satellite A50/TECRA A2 Maintenance Manual (960-478) 2-27