Toshiba Satellite A40 Maintenance Manual - Page 86

2.4 System Board Troubleshooting 2 Troubleshooting Procedures LED Status 06h 07h 08h Table 2-5 Printer port LED status (5/8) Test item Contents Saving memory configuration to buffer Reading of EC version Update of flash ROM type Judging of destination (Japan or except Japan) based on DMI data CMOS default setting check (Default set if Bad battery, Bad checksum (ROM, CMOS) is detected) ACPI table initialization (for execution of option ROM) Initialization of devices which need initialization before PCI bus initialization AC'97 control Initialization of temperature control information KBC initialization VGA display off, Reset control Sound initialization PC multi-box status acquisition HC initialization, USB Device recognition and initialization Control of built-in LAN permission/prohibition PIC initialization PIC test Check if self test is executed or not (at Cold boot only) (space key and printer loop back connector check) Password Initialization PCI bus initialization (connection of DS Bus) Initialization of LAN information WakeUp factor check Task generation for waiting INIT_PCI completion CMOS data initialization (2) PnP initialization Setting of setup items Waiting for the completion of Multi-box status check H/W setting based on resource Satellite A40 Maintenance Manual (960-458) 2-27