2 Troubleshooting 2.4 System Board

2-14 TECRA S1 Maintenance Manual

Table 2-1 Printer port LED boot mode status (1/3)

LED Status

(Hexadecimal) Test Item Description

0H DIAG_SYSTEM_INIT Boot started,read the cmos data for makesure
main board power is stable
1H DI A G_A20_ DI SABL E Di sable A 20 t hrough A 20
2H DIAG_INIT_CHIPSET Initialize ChipsetSet,load chipset default
size chac he RA M
3H DIAG_TEST_RAM send patten for test the basic 640k RAM
4H DI A G_MOV E_BB _LOA DER Move boot load segment i nto the RA M
5H DI A G_EXECU TE_I N_DRA M program executi on from DRAM
6H DIAG_USER_FLASH_CHECK Test print port for check
crisis opti on i s enable or not
7H DIAG_SHADOW_BIOS Decompress the system BIOS, and
Shadow System BIOS to RAM
8H DIAG_CHECKSUM_BIOS Checksum System BIOS ROM
9H DIAG_NORMAL_BOOT Jump to the reset point
AH DI AG_CRI SIS_BOOT Proceed with Cr isi s Boot ,f ir st i nit ial
superio and boot device
FH DIAG_FATAL_ERROR Fatal Error,like the RAM error or ROM error
CCH DIAG _C RI SI S_ B EGI N Start p ro cess t he C ri sis r eco v ery pr o cedu r e
99H DIA G_RESUME_RA M_ ERROR Resume SMRAM not Found
10H DE BU G_ M I SC _R ESET Disab l e i n t ern al cac he r am, and
reset cpu
11H DEBUG_CS_FA ST_A20_ RESET T urn of f FA STA20 f or post,and check hav e k ey bo ar d
controllor
12H DEBUG_POST_SIGNAL_POR Initial PIC enable INT and Signal Power On Reset
13H DEBUG_CS_CHIP_INIT Initialize the Chipset and hook PCI BIOS
14H DEBUG_OEM_ISA_VGA_SEARCH Search For ISA Bus VGA Adapter, from address c000
to e000
15H DEBUG_HWI O_SETUP_CT C1 Ini ti al ize Count er and T imer chip
16H DEBUG_OEM_ SET_CMOS_REGS User register co nfi g t hrough CM OS
17H DEBUG_CS_MEM ORY_ SIZE Size Memory, and det ect memory ti ming,
setup memory contr oll or
18H DEBUG_POST_TEST_RAM Initialize and test the first 64k memory
19H DEBUG_GEN _TEST_ ROMS checksum t he system ROM
1AH DEBUG_HWIO_RESET_INTS Reset PIC's status
1BH DEBUG_VI DEO_V IDEO_ IN IT Init ial ize V i deo Adapter (s),and check vga rom and
vga ram
1CH DEBUG_VID EO_EQUI P_INI T Ini ti ali ze V ideo ( 6845 Regs),set displ ay mode
1DH DEBUG_VID EO_COLOR_I NI T Init ial ize Color Adapt er,and setup di spl ay reg.
1EH DEBUG_VIDEO_BW_INIT Initialize Monochrome Adapter,and setup display
reg.
1FH DEBUG_HWI O_TEST_D MA _PAG Send out some value,to test 8237A Page Reg i st ers