Toshiba Satellite 4000CDT
10/Jan/2024
Identification Label
TOSHIBA
4000CDT/4.0 SYSTEM YBUT
MODEL NO. PA1273E YXCD
DC 15V
3.0 A
SERIAL NO. X8040988
Manufacture year: 1997
Useful links:
- About the model: https://www.computinghistory.org.uk/det/46780/Toshiba-Satellite-S4000CDS-4-0/
- Recovery image (german) https://archive.org/details/4000-4010-4020-rc-2-win-98-disc-1
- Service manuals: https://www.minuszerodegrees.net/manuals/Toshiba/Atlas/Toshiba_Atlas.htm
- Overall info about Toshibas: https://www.minuszerodegrees.net/manuals/Toshiba/Toshiba.htm
- SETUP programs: https://www.minuszerodegrees.net/manuals/Toshiba/Setup/Toshiba_setup.htm
- Battery: https://wiki.droids-corp.org/articles/m/a/g/Maggie/Electronics/Accu.html
Error Messages (so far...)
Stuck in CMOS
**** Bad check sum (CMOS) ****
Check system. Then press [F1] key.
Not sure if F1 key works, I press and it does nothing!!!
UPDATE: some keyboard keys were defective. Pressing F1 via PS/2 keyboard allowed the CMOS to be saved and this message disapeared! Some trails in the keyboard membrane were corroded. I could fix it using conductive paint + superglue to put the keyboard back after the plastic rivets were destroyed in disassembly.
Related posts:
- Bad RTC Battery/Bad Checksum (CMOS) BIOS Error on Bootup : https://support.dynabook.com/support/viewContentDetail?soid=355107
From Toshiba Satellite 100CS - Maintenance Manual.pdf we see the following troubleshooting section (MAY NOT BE APPLICABLE TO THIS MODEL):
2.4 System Board and HDD I/F Board Troubleshooting
This section describes how to determine if the system board and sound board are defective or not functioning properly. Start with Procedure 1 and continue with the other procedures as instructed. The procedures described in this section are:
Procedure 1: Message Check
Procedure 2: Printer Port LED Check on Boot Mode
Procedure 3: Printer Port LED Check on Resume Mode
Procedure 4: Diagnostic Test Program Execution Check
Procedure 5: Replacement Check
Procedure 1 Message Check
When the power is turned on, the system performs the Initial Reliability Test (IRT) installed in the BIOS ROM. The IRT tests each IC on the system board and initializes it.
❑ If an error message is shown on the display, perform Check 1.
❑ If there is no error message, go to Procedure 2.
❑ If the Toshiba MS-DOS is properly loaded, go to Procedure 3.
Check 1
If one of the following error messages is displayed on the screen, press the F1 key as the message instructs. These errors occur when the system configuration preserved in the RTC memory (CMOS type memory) is not the same as the actual
configuration or when the data is lost.
If you press the F1 key as the message instructs, the system configuration in the
RTC memory configuration is set to the default setting. If error message (b) appears often when the power is turned on, replace the RTC battery. If any other error message is displayed, perform Check 2.
(a) *** Bad HDD type ***
Check system. Then press [F1] key ......
(b) *** Bad RTC battery ***
Check system. Then press [F1] key ......
(c) *** Bad configuration ***
Check system. Then press [F1] key ......
(d) *** Bad memory size ***
Check system. Then press [F1] key ......
(e) *** Bad time function ***
Check system. Then press [F1] key ......
(f) *** Bad check sum (CMOS) ***
Check system. Then press [F1] key ......
(g) *** Bad check sum (ROM) ***
Check system. Then press [F1] key ......
From Satellite P300/ProP300 we see the following troubleshooting section (MAY NOT BE APPLICABLE TO THIS MODEL):
Procedure 1 Message Check
When the power is turned on, the system performs the Power On Self Test (POST) installed in the BIOS ROM. The POST tests each IC on the system board and initializes it.
If an error message is shown on the display, perform Check 1.
If there is no error message, go to Procedure 2.
If MS-DOS or Windows XP is properly loaded, go to Procedure 4.
Check 1
If one of the following error messages is displayed on the screen, press the F1 key as the message instructs. These errors occur when the system configuration
preserved in the RTC memory (CMOS type memory) is not the same as the actual configuration or when the data is lost. If you press the F1 key as the message instructs, the SETUP screen appears to set the system configuration. If error message (b) appears often when the power is turned on, replace the RTC battery. If any other error message is displayed,
perform Check 2.
(a) *** Bad HDD type ***
Check system. Then press [F1] key ......
(b) *** Bad RTC battery ***
Check system. Then press [F1] key ......
(c) *** Bad configuration ***
Check system. Then press [F1] key ......
(d) *** Bad memory size ***
Check system. Then press [F1] key ......
(e) *** Bad time function ***
Check system. Then press [F1] key ......
(f) *** Bad check sum (CMOS) ***
Check system. Then press [F1] key ......
(g) *** Bad check sum (ROM) ***
Check system. Then press [F1] key ......
Key combinations
C
Press and hold the c key and turn on the computer to boot from CD-ROM. This is useful when using the restoring disks.
Esc
Press and hold the Esc key and turn on the computer to stop normal boot and enter BIOS.
Ctrl + Alt + Del
Restart the laptop.
Tab
The message:
Ready for EC/KBC update. Place the EC/KBC update diskette in the drive, and press any key when ready to proceed
is displayed with the following steps:
- Power off the unit.
- Press and hold Tab
- Press the power button to turn on the computer
- The following message is displayed:
F12
The message:
Ready for BIOS update. Place the BIOS update diskette in the drive, and press any key when ready to proceed.
is displayed with the following steps:
- Power off the unit.
- Press and hold F12
- Press the power button to turn on the computer
- The following message is displayed:
I was able to find and generate a workable update diskette using 1400cv82.exe
Unfortunatelly the link from support is broken: https://support.dynabook.com/support/viewContentDetail?contentId=120386
This indicates that the BIOS for the following models are the same: 4000/4005/4010/4015/4020/4025
Bios README.TXT
README.TXT 08-04-2001 CDC
Flash BIOS version 8.20 for Satellite 4000C Series
=============================================================================
This BIOS is applicable to the following models:
Satellite 4000CDS
Satellite 4000CDT
Satellite 4005CDS
Satellite 4005CDT
Satellite 4010CDS
Satellite 4010CDT
Satellite 4015CDS
Satellite 4015CDT
Satellite 4020CDT
Satellite 4025CDT
For purposes of this document, the term "Satellite 4000C Series"
is used to generically refer to all of the models listed above.
=============================================================================
This archive contains the following files:
README.TXT Installation/usage instructions in ASCII text format
README.COM Self-displaying version of installation/usage instructions
1117D820.EXE Self-extracting diskette image of BIOS install diskette
BIOFC19T.COM Flash BIOS 8.20 image for Satellite 4000C Series
(provided here for installation methods 2 and 3)
CHGBIOSA.EXE Flash BIOS update utility version 4.02
(provided here for installation methods 2 and 3)
INSTINFO.BAT DOS batch file that creates install disk and displays README
file
This BIOS version is Windows 2000 compatible and supports Plug and Play,
and ACPI functionality.
********************************** CAUTION! *********************************
*****************************************************************************
During the upgrading of your computers BIOS, if the computer loses power or
fails to complete the process of upgrading the BIOS, the existing BIOS in
the computer may become damaged. In the event of this occurring, the
BIOS Key Installation Method, described below, can be used to recover from
this error condition.
If you are upgrading a number of computers with this BIOS, the BIOS Key
installation method is the quickest.
It is recommended that all PCMCIA cards be removed from the system prior to
upgrading the BIOS. Also recommended is detaching the computer from any
docking device (Desk Station, port replicator, etc.) which may be attached.
It is not unusual to see a CMOS error when you first reboot the computer after
installing the new BIOS. If you see this message on your screen, press F1 as
instructed. This displays the "TSETUP" screen. Press <End> to save the CMOS
data. You won't see the CMOS error again.
******************** BIOS INSTALLATION INSTRUCTIONS *************************
*****************************************************************************
There are three ways to install this BIOS version:
1) Use the bootable diskette that is automatically created by the Windows
UnZip process (Recommended)
2) At startup by holding down the F12 key.
3) Run CHGBIOSA.EXE at the command prompt.
*****************************************************************************
1) BOOT DISKETTE INSTALLATION METHOD (Recommended)
--------------------------------------------------
This release of the electronic distribution BIOS utilizes a self-extracting
ZIP file that, when run under Windows or Win-OS2, creates a bootable BIOS
installation diskette.
Since you're reading this, you were obviously able to extract the downloaded
file. If you also created the BIOS installation diskette as a part of the
extraction process, you're ready to follow the installation instructions
below.
If you didn't create the installation diskette during the extraction phase,
or if you extracted the downloaded file with PKUnZip or WinZip, you can
create the installation diskette by executing the INSTINFO program from the
DOS command prompt.
Install this BIOS using the following steps:
WINDOWS 9x, Me, 2000, NT:
o Close all open programs
o Insert the BIOS installation diskette into your diskette drive (A:)
o Click Start
o Click Shutdown
o Click the radio button next to "Restart the computer?"
o Click Yes
WINDOWS 3.x:
o Close all open programs
o From Program Manager, click on File/Exit Windows
Windows exits to a MS-DOS command prompt
o Insert the BIOS installation diskette into your diskette drive (A:)
o Press Ctrl-Alt-Del (press and hold the <Ctrl> and <Alt> keys and press
the <Del> key) to restart the system
OTHER OPERATING SYSTEMS
o Close all open programs
o Shut down the operating system
o Insert the BIOS installation diskette into your diskette drive (A:)
o Restart the computer by pressing Ctrl-Alt-Del or turning the computer
OFF then on again
The computer will boot MS-DOS from the BIOS installation diskette, and
initiate the Flash BIOS installation routine. When the Flash BIOS
installation is complete, the success message is displayed:
Please push the RESET SW (or turn AC power OFF/ON) to restart!
ROM Write Successful!
Utility Finished!
Eject the diskette from drive A: and turn the computer OFF then ON, or press
the reset switch to restart your computer.
ADDITIONAL INFORMATION REGARDING THIS RELEASE
---------------------------------------------
If you are unable to use the Windows self-extractor, the self-extracting
ZIP archive can be extracted by executing it from a DOS prompt or it can be
extracted using PKUNZIP 2.04G or an equivalent UnZIP utility. A DOS batch
file, INSTINFO.BAT is provided in the ZIP archive which will create the BIOS
installation diskette. If all else fails, you can execute the
self-extracting diskette image manually. This file is named 1117D820.EXE, and
needs a parameter of A: (1117D820 A:) to successfully create the diskette in
drive A:
The self-extracting diskette image, 1117D820.EXE, will run under MS-DOS or a
command prompt under Windows 9x, Me, 2000, NT, or OS/2. PLEASE NOTE that long
directory names in the path where the self-extracting image file is stored
under Windows 9x or NT/2K will cause the self-extracting image to abort. Long
directory names are supported under OS/2.
2) BIOS KEY INSTALLATION METHOD
---------------------------
Your Toshiba computer has a special keyboard function to install an
updated BIOS image.
To use this function, hold down the F12 key while the computer is
powered on. The computer MUST be in BOOT mode, not Resume mode.
This installation method will only work with the internal keyboard. If
your computer is docked with the display closed and you are using an external
keyboard, the computer will need to be undocked and the internal keyboard's
F12 key used.
When the computer starts up with the F12 key depressed, the following
message appears:
'Ready for BIOS update. Place the BIOS diskette in the drive, and press
any key when ready to proceed.'
Insert the diskette that contains CHGBIOSA.EXE and BIOFC19T.COM,
and press any key. The CHGBIOSA program will automatically load the
BIOFC19T.COM file.
3) RUN CHGBIOSA.EXE AT THE COMMAND PROMPT
-----------------------------------------
The CHGBIOSA program is designed to be run from the MS-DOS command
prompt. It cannot be run in a DOS box inside of Windows 3.x, Windows 9x,
OS/2 or other operating systems. It also will not run if a Memory Manager,
like EMM386, is loaded. The CHGBIOSA program can be run from a
floppy disk, hard drive, or PCMCIA drive. However, you will need a floppy
diskette (high or low density) in your A: drive at the time the CHGBIOSA
program is run.
When the CHGBIOSA program is executed by itself, it will prompt you
to specify where the BIOS image file, BIOFC19T.COM is located. Enter
the complete path and file name. Example: C:\1400CV82\BIOFC19T.COM.
NOTE!
-----
If your path for BIOFC19T.COM is anywhere other than the root directory
of the A: drive (A:\BIOFC19T.COM), CHGBIOSA will copy the BIOS image
file from its current location to the root directory of A: drive.
Optionally, the CHGBIOSA program can also be run from a single command
which includes the path to the BIOFC19T.COM file.
Example: CHGBIOSA C:\1400CV82\BIOFC19T.COM
CHANGE HISTORY
--------------
Version 8.20 08-02-2001
o A change was made to correct a problem that some PC cards with a
single spec for 16 bit and 3.3VDC may malfunction.
Version 8.10 06-30-2000
o Power management controlling power consumption and temperature has
been improved.
Version 8.00 02-08-2000
o A change was made to support Windows 2000.
o Corrected a problem where having the "USB Legecy=Enabled" set in the
BIOS, and entering some keys on a Japanese USB keyboard, was
impossible.
o Correct a rare problem when printing a text file from a DOS shell in
Windows 95.
o Corrected a rare problem witht eh HDD password. When the HDD password
was registered, and the computer set to standby mode, resuming the
computer would lead to a blue screen error.
o Corrected a problem when running Windows 2000. If VGA segment address
was set to E4000h, a blue screen error would occur
o Corrected a problem while running the HCT test. In the ACPI test, the
CPU Throttle subtest would result in a false error.
o Corrected a problem while running the HCT test. In the ACPI Test,
executing the USB subtest would result in a false error.
o When copying a file from a 120MB FDD, using a Super Disk (LS-120),
while running Windows 95/98, and then attempting to open that file
under DOS mode, caused files, in excess of 50MB, to be corrupted.
o Corrected a problem where having the "USB Legecy=Enabled" set in the
BIOS, and entering the "Pause" key several times caused the key to
repeat on it's own.
o Corrected a problem when the Power ON/OFF was set to Enable, and
system goes into Hibernation with the LCD panel closed. If an AC
Adaptor was connected after opening the display panel, the computer
would "wake up" on its own.
o Corrected a problem of installing a driver from the FDD. Installing a
driver was impossible when a new device was detected during Windows 98
installation.
o Corrected a problem that when, after preinstalling Windows 95/98,
executing hibernation without shutting down the system resulted in
intermittent hibernation error.
o The control method of the system status (Sx) was changed.
Version 7.80 02-22-1999
o Corrected a problem in Windows '98 with a hang when operating under
ACPI mode. C3 state function was disabled completely.
Version 7.70 12-07-1998
o Corrected a problem where the system would hang under ACPI mode of
Win98 when going into a C3 state.
o Corrected a problem with systems using a Sharp LCD, where the entire
screen becomes white when it is set to standby mode.
o Corrected a problem where, when using an incorrect key floppy
diskette, the password would be canceled.
o Corrected a problem where, after hibernation is executed one time, the
hibernation will continue to work even though the hibernation setting
was canceled.
o Corrected a problem where some PC cards don't work under Win2000.
This is caused by a mis-match of PCMCIA data between the IRQ routing
table and the hardware.
o Corrected a problem where suspending or resuming the system under
Win95 or Win98 would lead to an all white or all black LCD.
Version 7.60 09-09-1998
o On the Satellite 4020, the time from power-on to receiving the
external KB initialization end code was shortened to 2.5 seconds.
o Corrected a problem with the system hanging during the power on
sequence if the system is set to CardBus/16 bit mode, with an R2 card
(such as a modem card) installed in the system.
o Corrected a problem where, under Windows NT, disconnecting the AC
adapter with the system set to Display Auto Off, the display would
turn on.
o Corrected a possible problem with a system shutdown, even if the CPU
module's ambient temperature does not reach the point of system
shutdown.
Version 7.40 11-18-1998
o Initial Production BIOS for Satellite 4000/4005
**end**