Toshiba Qosmio G40, Maintenance Manual

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2.4 System Board Troubleshooting 2 Troubleshooting Procedures
QOSMIO G40 Maintenance Manual (960-632) [CONFIDENTIAL] 2-23
Table 2-4 Debug port (Boot mode) error status (2/10)
D port status Inspection items Details
F009h
Saving key scan code
Setting TASK_1ms_TSC
Controlling fan
Releasing mute Initializing sound items
(for BEEP)
Making the volume max (model that can
control volume)
When request BIOS, EC/KBC
rewriting
Blinks green (cycle:2s, on:1s, off:1s)
When BIOS renewal is
prohibited Blinks orange (cycle:8s, on:4s, off:4s) HLT
after BEEP is sounded for 30s (Dport=F00BH)
Prohibition of USB
BEEP
Key input
Waiting for key input
FDC reset
Setting parameters for 2HD(1.44MB)
Reading of first sector, If it is the data of
1.44MB (2HD), the media type is definite.
Setting of parameters for 2DD (720KB)
Retrieval of “CHGBIOSA.EXE” from the root
directory.
Directory start header and calculates the
sector
Read 1 sector of the root directory
Retrieval of entry of “CHGBIOSA.EXE”
/“CHGFIRMA.EXE” from the sector read.
Reading of EXE header of “CHGBIOSA.EXE”
and “CHGFIRMA.EXE”
Key input when error occurred
F00Ah
Reading CHGBIOSA.EXE /
CHGFIRMA.EXE
Execution of “CHGBIOSA.EXE” and
“CHGFIRMA.EXE”
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