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2 Troubleshooting 2.4 System board Troubleshooting
2-22 [CONFIDENTIAL] PORTEGE R200 Maintenance Manual (960-519)
Table 2-4 D port status (2/8)
D port Status Test item Message
FAN control
Sound controller initialization (for beep)
Enabling system speaker
Releasing mute
Sets the volume maximum. (models that can control
volume)
BIOS, EC/KBC rewrite request (Flashing green 2s
period (On:1s,Off:1s))
BIOS ROM fault (Flashing orange 2s period
(On:1s,Off:1s))
BIOS renewal prohibition (class 2 model only) Flashing
orange 8s period (On:4s,Off:4s), HLT (DPORT=F00BH)
when 30 seconds beep
Key input
Prohibition of USB
Beeping.
Waiting for key input
(F009H)
Reading CHGBIOSA.EXE/CHGFIRMA.EXE
FDC reset
Setting of parameter for 2HD (1.44MB)
Reading first sector
When it is 2HD (1.44MB), media is defined.
Setting of parameter for 2DD (720KB)
Search of CHGBIOSA.EXE from route directory
Calculation of directory start head, sector
Reading contents of route directory by one sector
Search of entry for "CHGBIOSA.EXE" from the sector
read
Reading of EXE header of "CHGBIOSA.EXE" key input
when an error occurred
Execute "CHGBIOSA.EXE"/"CHGFIRMA.EXE"
Prohibition of cache
Permission of L1/L2 cache (Flash ROM area)
Initialization for H/W (before recognition of DRAM)
Initialization of MCH
Initialization of ICH.D30.Func0
Initialization of ICH.D31.Func0
Initialization of ICH.D31.Func1
Initialization of ICH.D31.Func1/2
Initialization of USB Controller
Initialization of ICH.D31.Func3
Initialization of ICH AC97 Audio
Initialization of TI Controller
F100H
PIT CH1 initialization (Setting refresh interval to 30ms)