2 Troubleshooting
2.4 System Board
2-14
Satellite M20
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
DIAG_A20_DISABLE
Disable A20 through A20
2H
DIAG_INIT_CHIPSET
Initialize ChipsetSet,load chipset default
size chache RAM
3H
DIAG_TEST_RAM
send patten for test the basic 640k RAM
4H
DIAG_MOVE_BB_LOADER
Move boot load segment into the RAM
5H
DIAG_EXECUTE_IN_DRAM
program execution from DRAM
6H
DIAG_USER_FLASH_CHECK
Test print port for check
crisis option is 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
DIAG_CRISIS_BOOT
Proceed with Crisis Boot,first initial
superio and boot device
FH
DIAG_FATAL_ERROR
Fatal Error,like the RAM error or ROM error
CCH
DIAG_CRISIS_BEGIN
Start process the Crisis recovery procedure
99H
DIAG_RESUME_RAM_ERROR
Resume SMRAM not Found
10H
DEBUG_MISC_RESET
Disable internal cache ram,and
reset cpu
11H
DEBUG_CS_FAST_A20_RESET
Turn off FASTA20 for post,and check have keyboard
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_HWIO_SETUP_CTC1
Initialize Counter and Timer chip
16H
DEBUG_OEM_SET_CMOS_REGS
User register config through CMOS
17H
DEBUG_CS_MEMORY_SIZE
Size Memory, and detect memory timing,
setup memory controllor
18H
DEBUG_POST_TEST_RAM
Initialize and test the first 64k memory
19H
DEBUG_GEN_TEST_ROMS
checksum the system ROM
1AH
DEBUG_HWIO_RESET_INTS
Reset PIC's status
1BH
DEBUG_VIDEO_VIDEO_INIT
Initialize Video Adapter(s),and check vga rom and
vga ram
1CH
DEBUG_VIDEO_EQUIP_INIT
Initialize Video (6845 Regs),set display mode
1DH
DEBUG_VIDEO_COLOR_INIT
Initialize Color Adapter,and setup display reg.
1EH
DEBUG_VIDEO_BW_INIT
Initialize Monochrome Adapter,and setup display
reg.
1FH
DEBUG_HWIO_TEST_DMA_PAG
Send out some value,to test 8237A Page Registers
Содержание Satellite M20
Страница 10: ...x Satellite M20 Maintenance Manual ...
Страница 11: ...Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii Satellite M20 Maintenance Manual ...
Страница 35: ...2 Troubleshooting 2 Chapter 2 Troubleshooting 2 i Satellite M20 Maintenance Manual ...
Страница 72: ...Chapter 3 Diagnostic Programs ...
Страница 75: ......
Страница 141: ......
Страница 143: ...Chapter 4 Replacement Procedures ...
Страница 144: ...4 Replacement Procedures 4 ii Satellite M20 Maintenance Manual ...
Страница 151: ...4 Replacement Procedures Satellite M20 Maintenance Manual 4 ix ...
Страница 152: ......
Страница 239: ...6000 1 次 Appendices ...
Страница 240: ...Appendices App ii Satellite M20 Maintenance Manual ...
Страница 292: ...Appendices Apx E Key Layout E 2 Satellite M20 Maintenance Manual E 3 Korea Keyboard Figure E 3 Korea keyboard ...