Figure 1-10 Keyboard - Toshiba Tecra M1 Maintenance Manual

2.4 System Board Troubleshooting
LED Status
0EH System initialization
0FH Display initialization
10H LOGO display
11H Conventional memory check
12H Extension memory check
13H Conventional memory initialization
(Reboot)
(LED=14H when an error is
detected in check of exceptional
cases in protected mode)
15H DMA Page Register check
16H DMAC check
17H DMAX initialization
18H Printer check
19H SIO check
1AH Password check
1BH Extension I/O ROM check
1CH Final setting up prior to boot-up
TECRA M1 Maintenance Manual (960 -436)
Table 2-3 Printer port LED boot mode status (6/8)
Test item
2 Troubleshooting Procedures
Message
Storing CMOS error status in IRT error status buffer
Start of TIMER initialization
Initialization of buffer for power save
Update of system BIOS (model name, EDID of the LCD)
Waiting for the end of VGA chip initialization
(Boot)
Check of exceptional cases in protected mode (Boot)
(Boot)
(Boot)
(Boot)
(Reboot)
Waiting for the end of HDD initialization
Key input check during IRT (Waiting for the end of KBC
initialization)
ATA priority initialization
(Boot)
BM loading
BM initialization
Key input check during IRT (Waiting for the end of KBC
initialization)
Password input
Enabling BM
Storing the value of 40:00h (for SIO save/store)
Font address setting for resume password
Setting of parameter for character repeat on a USB
keyboard
2-25