Toshiba A10 Personal Computer User Manual


 
2 Troubleshooting Procedures 2.4 System Board Troubleshooting
Table 2-5 Printer port LED resume mode error status (1/4)
LED Status Test item Contents
00h Refer to IRT printer LED error status.
01h Refer to IRT printer LED error status.
02h Refer to IRT printer LED error status.
03h Refer to IRT printer LED error status.
Clears flag for SMI control.
Renewal of Resume counter
1F Checks the WakeUp factors.
Rewriting of SMRAM BASE
20h
Initializing devices necessary for
Initializing of PIT
initialization before initializing
Initializing of PIT channel 0 (Sets the interval of
timer interruption to 55ms)
PCI bus (1)
Initializing of PIT channel 2 (Sets the sound
generator frequency to 664Hz)
Measuring CPU clock
Permission of SMI other than auto-off function
Control of battery discharging current (1CmA)
Dividing for measuring of IRT time
Setting to clock generator
Check of parameter block A
Initializing of CP
Updating P6 micro-code
Check of supporting Geyserville
Sets the CPU clock to High.
Setting of Graphics Aperture Size
Recovery of PIC register
Initialization of devices necessary for AC'97 control
initialization before initializing Initializing of temperature control information
PCI bus (2) Initializing of KBC
VGA display-off and Reset control, Starts VGA
recovery.
Initializing of sound
Acquires the multi-box status.
Initializing of HC , recognizing of USB devices connection and initializing the USB devices
2-34 Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)