Toshiba Libretto 50CT/70CT Manual

3.24  SETUP3  Tests and Diagnostics3-56Libretto 50CT/70CT Maintenance ManualCOM levelInterrupt levelI/O address
COM143F8H(Default)
COM232F8H
COM343E8H
COM353E8H
COM373E8H
COM432E8H
COM452E8H
COM472E8H
Not used(Disables port)
NOTE:  If the setting for the serial port is the same as that for the Modem port,the Modem port is automatically set to disabled.(b) Infrared Port
This option allows you to set the COM level for the infrared port. The infrared
port interrupt request level (IRQ) and I/O port base...

3  Tests and Diagnostics3.24  SETUPLibretto 50CT/70CT Maintenance Manual3-57(c) Parallel Port
This option sets the interrupt level and I/O address for the parallel port.  When
the Printer Port Type (see settings below) is set to Std. Bi-directional, the
options are:
LPT settingInterrupt
levelI/O address
LPT 17378H
LPT 25278H
LPT 373BCH
Not Used(Default)
Others(Other settings are made
automatically by the Plug-
and-Play operating system.)
When the Printer Port Type (see settings below) is set to ECP, the...

3.24  SETUP3  Tests and Diagnostics3-58Libretto 50CT/70CT Maintenance Manual(d) Sound System
This option allows you to enable or disable the sound system.
 EnabledEnables the sound system. (Default)
 DisabledDisables the sound system.
When Enabled is selected, a subwindow similar to the one below displays to let
you set the WSS I/O address, SBPro I/O address, WSS & SBPro &
MPU401 IRQ levels, WSS(Play) DMA, and SBPro DMA for the sound
system.  (Some of the values displayed cannot be changed on the...

3  Tests and Diagnostics3.24  SETUPLibretto 50CT/70CT Maintenance Manual3-59WSS(Play) DMAThis option sets the WSS(Play) DMA for the sound system.  The available
settings are:
Channel 0, Channel 1 (default), Channel 3
SBPro DMAThis option sets the SBPro DMA for the sound system.  The available settings
are:Channel 0 (default), Channel 1, Channel 3
Same as playControl I/O AddressYou cannot change this value.
MPU401 (MIDI I/F) IRQ LevelYou cannot change this value.
6. Others
Whether or not you need to...

3.24  SETUP3  Tests and Diagnostics3-60Libretto 50CT/70CT Maintenance ManualWhen Enabled is selected, a subwindow similar to the one below displays to let
you select the cache write policy.  The options for this setting are Write-back
(default) and Write-through for CPU cache.
 OPTIONWrite policy=Write-backWrite-back policy provides better system performance, because main memory
is accessed only when necessary to update the cache contents with changes in
main memory.  Write-through policy accesses main...

3  Tests and Diagnostics3.24  SETUPLibretto 50CT/70CT Maintenance Manual3-61(e) System Beep
Use this feature to enable or disable the system beep.
 EnabledEnables the feature. Default
 DisabledDisables the feature.
(f) Panel Power On/Off
This option allows you to automatically turn your computer on or off by
opening or closing the display panel.  If this feature is enabled when the
computer is in Resume mode, the system is automatically powered off when
the display panel is closed and powered on when the...

3.24  SETUP3  Tests and Diagnostics3-62Libretto 50CT/70CT Maintenance ManualNOTES:1.Do not remove the AC adapter and battery pack at the same time when you use this feature.  If you do so, data saved by AutoResume will be lost.  You must also resetthis option.2.If you have set a password and the computer boots by the Auto Power On function and Resume is on, the computer will start with the instant security function enabled. The Password = message is not displayed; however, you must enter the password to...

Chapter 4Replacement Procedures 

4-iiLibretto 50CT/70CT Maintenance Manual 

Libretto 50CT/70CT Maintenance Manual4-iiiTable of Contents4.1  Overview.....................................................................................................................4-1
4.2  Battery Pack................................................................................................................4-6
4.3  Optional PC Card........................................................................................................4-8
4.4  Hard Disk Drive...