2 Troubleshooting Procedures 2.4 System Board Troubleshooting

2-26 [CONFIDENTIAL] TECRA A9(S5/P5/S200) Maintenance Manual (960-633)

Table 2-5 Serial port (Boot mode) error status (7/9)

D port Status Test item Contents

F10Fh INIT_SYSTEM (Initialization of system)
Storing of CMOS error information to
IRT_ERR_STS_BUF
Timer initialization start
EC initialization & Reading of battery information
Update of system BIOS (Update EDID information for
LCD)
F110h INIT_DISPLAY (Waiting for VGA chip initialization completion, VGA
BIOS initialization)
F111h VGA POST
F113h DISP_LOGO (Logo displaying)
F114h SYS_MEM_CHECK (Check of conventional memory) (Boot)
F115h EXT_MEM_CHECK (Exception check in protected mode) (Boot)
F116h INIT_SYS_MEM
(Initialization of conventional memory) (Reboot)
(LED=17h if error occurred during exception check in
protected mode)
F118h CHK_DMA_PAGE (Check of DMA Page Register) (Boot)
F119h CHECK_DMAC (Check of DMAC) (Boot)
F11Ah INIT_DMAC (Initialization of DMAC) (Boot)
F11Bh CHECK_PRT (Check of printer existence) (For models supporting
Printer port)
F11Ch CHECK_SIO (Check of SIO) (model supporting SIO)
F11Dh BOOT_PASSWORD (Check of password)
Waiting for FDD initialization completion (For 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)
Initialization of ATA priority
(In the case of “Boot”) Loading processing of BM (Only model which is
supporting the finger point leader)
Initialization of BM(Only model which is supporting the
finger point leader)
Check of key input during IRT (waiting for KBC
initialization completion)
A password input is performed.