Toshiba A20-S259 - Satellite - Pentium 4 2.66 GHz Maintenance Manual

Also see for A20-S259 - Satellite - Pentium 4 2.66 GHz: User guide Specification sheet

Contents

2.12 Sound Troubleshooting 2 Troubleshooting ProceduresSatellite A20 Maintenance Manual (960-444) 2-29Table 2-3 Printer port LED boot mode status (7/8)LED Status Test item Message13h System memory initialization* LED=14h when an error isdetected in check ofexceptional cases inprotected modeInitialization of conventional memory (Reboot)15h DMA Page Register check DMA Page Register check (Boot)16h DMAC check DMAC check (Boot)17h DMAC initialization DMAC initialization (Boot)18h Printer port check Printer port check19h SIO check SIO checkPassword check(Reboot)Waiting for the completion of HDD initializationKey input check during IRT (Waiting for thecompletion of KBC initialization)Initialization of ATA priority(Boot)Loading BMBM initializationKey input check during IRT (Waiting for thecompletion of KBC initialization)Password input1Ah Boot passwordReleasing BM1Bh Extension I/O ROM check Optional I/O ROM checkStoring the value of 40:00h (for SIO save/restore)Setting of font address for resume passwordSetting repeat parameters for USB KBStoring T shadow RAW sizeUpdate of system resource for prebootRewriting the memory map data for INT 15hE820h functionWaiting for the completion of AC-Link initializationUpdate of DMI tableCopying ACPI table to the top of expansionmemory1Ch Pre Boot SetupWaiting for the completion of writing PSC versionon BIOS