2 Troubleshooting Procedures
Table 2-4 Printer port LED boot mode status (7/9)
LED Status
Test item
0Fh
INIT_SYSTEM
10h
INIT_DISPLAY
11h
Calling VGA BIOS
13h
DISP_LOGO
14h
SYS_MEM_CHECK
15h
EXT_MEM_CHECK
16h
INIT_SYS_MEM
18h
CHK_DMA_PAGE
19h
CHECK_DMAC
1Ah
INIT_DMAC
1Bh
CHECK_PRT
1Ch
CHECK_SIO
Process of DIAGNOSTIC
1Dh
inspection result display
1Eh
BOOT_PASSWORD
(In the case of "Reboot")
2-26
[CONFIDENTIAL]
Contents
(Initialization of system)
Storing of CMOS error information to
IRT_ERR_STS_BUF
Controlling CD POWER SW (model supporting CD
play)
Timer initialization start
EC initialization & Reading of battery information
Update of system BIOS (Update EDID information for
LCD)
(Waiting for VGA chip initialization completion, VGA
BIOS initialization)
Waiting for VGA power-on
Waiting for Display access completion
(Logo displaying) (Start
ing of logo display waiting
LED=25H (unused))
(Check of conventional memory) (Boot)
(Exception check in protected mode) (Boot)
(Initialization of conventional memory) (Reboot)
(LED=17h if error occurred during exception check in
protected mode)
(Check of DMA Page Register) (Boot)
(Check of DMAC) (Boot)
(Initialization of DMAC) (Boot)
(Check of printer existence) (For models supporting
Printer port)
(Check of SIO) (model supporting SIO)
(When DIAGNOSTIC mode is permitted)
(Check of password)
Waiting for FDD initialization completion (For models
supporting built-in FDD)
Waiting for HDD initialization completion
Check of key input during IRT (waiting for KBC
initialization completion)
I/O LOCK Processing (model supporting I/O LOCK)
Initialization of ATA priority
TECRA S3 Maintenance Manual (960-532)