Brand: FUJITSU
Category: Computers
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for LifeBook
Uploaded: Nov. 21, 2025, 8:29 p.m.
Warranty Information
This manual contains copyright and compliance information, but no specific warranty period is mentioned.
- Basic Operations: Explains basic operations, parts names and functions, floppy disk handling, and battery operation.
- Options Installation: Details the installation of optional components for the computer.
- Troubleshooting: Provides guidance on what to do when problems occur or messages are displayed.
- Connecting Peripherals: Covers connecting external monitors and other devices.
- Maintenance: Offers advice on caring for the notebook, batteries, floppy disks, and optical drives.
Troubleshooting and error codes
| Checkpoint | Cause and Solution |
|---|---|
| The power does not come on. | |
| Is the AC adaptor connected? | When using this computer for the first time after purchase, the battery is not yet charged, so you must connect the AC adaptor and switch on the main switch. |
| Is the main switch switched on? | If the main switch is not switched on, the power will not come on even if the SUS/RES switch is pressed. |
| Is the battery charged? | If a beep is heard when the main switch is turned on, then the battery is running low (LOW BATTERY). Connect the AC adaptor. |
| Has the computer been left unused for a long time? | When using the computer for the first time after leaving it unused for a long time, connect the AC adaptor and switch on the main switch to switch on the power. |
| Nothing displayed on the LCD panel | |
| Is anything displayed on the status indicator LCD? | Connect the AC adaptor and switch on the main switch. |
| Is displayed on the LCD panel? | • Displayed: Adjust the brightness and darkness with the brightness and contrast controls. • Flashing: Press the SUS/RES switch to put the computer into operating mode. • When the icon is off on the status indicator LCD: When the computer runs by the battery power, check the battery status if it is sufficiently charged for operation or not. If it is not charged, connect the AC adaptor and charge it. If you are already using this computer with the AC adaptor connected, check that it is correctly plugged into the power socket and into the computer. |
| Have you been pressing any of the keys? | |
| On this computer, if the power management functions are set and no key is pressed for a certain period of time, the CPU stops and the LCD panel backlight goes out. (In this state, pressing any key lights up the backlight again.) If the computer stops too frequently, change the BIOS setup settings. | |
| Is it set to output to the CRT? | Switch over to the LCD display with the [Fn] + [F10] keys. |
| LCD panel hard to read. | |
| Did you adjust the brightness? | Adjust the luminance of the LCD's backlight with the [Fn] + [F6] keys or [Fn] + [F7] keys on the keyboard. |
| Battery is not charged. | |
| Is the AC adaptor connected? | Check that the AC adaptor is correctly plugged into the power socket and into the computer. |
| Is the battery overheated (The on the LCD display flashes.)? | If the ambient temperature is high and the battery temperature becomes too high during use, the battery protection function may be triggered to stop the charging. |
| Is the computer too cold (The on the LCD display flashes.)? | If the battery temperature falls too low, the battery protection function may be triggered to stop the charging. |
| Was the charging stopped midway? | If you use the computer and disconnect the AC adaptor between the start of charging and the time the LCD turns off, the battery will not become fully charged. Once you start charging do not remove the AC adapter until the LCD turns off. |
| The remaining battery charge indicator does not stop flashing. | |
| Is the battery connected correctly? | Check that the battery is connected correctly. If it is connected correctly, there is an abnormality in the battery pack, so replace the battery pack. |
| Is the battery low? | Attach the AC adaptor and charge the battery. |
| Floppy disk or LS-120 disk can not be used. | |
| Is the floppy disk loaded into the floppy disk drive correctly? | Insert the floppy disk with its label facing up, into the drive shutter and keep inserting firmly until you hear a clicking sound. |
| Is the floppy disk formatted? | New floppy disks can not be used until they are formatted (initialized). Format the floppy disk. |
| Is the floppy disk unit securely installed? | Firmly install the floppy disk drive unit, port replicater or LS-120 disk unit. |
| Are both items of "Floppy disk A" and "Floppy controller" of the BIOS Setup menu set properly? | In the case a floppy disk is used, select "1.44/1.2MB 3.5" for the item "Floppy disk A" and "Use" for the item "Floppy controller". |
| Is "Administrator only" selected for the item "Floppy disk access" of the BIOS Setup menu? | In the case a floppy disk is used, select "Accessible at any time" for this item. When a super disk is used, accessibility cannot be controlled by this item. |
| Is the floppy disk write inhibited? | Set the write protect tab on the floppy disk to the write enable position. |
| Does it work with a different floppy disk? | If it works with a different floppy disk then the problem floppy disk may be damaged. |
| No sound or minimal sound from speaker. | |
| Is the volume control correctly adjusted? | Turn the volume control to adjust the volume to a proper level. If volume adjustment with the volume control results in failure, check to see if the sound driver is correctly installed. |
| Can not record from Mic or Line In jack. | |
| Is the volume adjusted properly? | Turn the volume control to obtain the correct volume. If the line jack is connected to the sound source, then check that connection. If recording still results in failure after the above-mentioned operation and check, activate the item "Recording" of the "Volume Control" and again adjust the volume with it. |
| LCD panel does not close. | |
| Is something caught in the LCD panel? | Forcing the LCD panel closed can damage it. Check for something caught in the LCD panel. Also, a metal object such as a paper clip can cause a breakdown if it gets caught in between the keys. |
| The power management function is not executed. | |
| Is Power Savings set to off in the BIOS setup? | Reset the BIOS setup. |
| Data cannot be read from the CD-ROM drive. | |
| Is the CD-ROM correctly set? | Set the CD-ROM correctly with its label facing upwards. |
| Is there any dirt, condensation or water on the CD-ROM? | Wipe it from the center outwards with a dry, soft cloth. |
| Is the CD-ROM scratched or extremely warped? | Replace the CD-ROM. |
| Are you using a non-standard CD-ROM? | Use a CD-ROM which conforms to the standards. |
| Is the CD-ROM drive unit securely installed? | Securely install the CD-ROM drive unit. |
| The CD cannot be ejected from the CD-ROM. | |
| Is it in operating mode? | The CD can only be ejected when the personal computer main unit is in operating mode because its CD- ROM drive has an electronic lock. Check that the personal computer main unit is in operating mode and press the EJECT button. If for some reason the CD tray does not come out even when you press the EJECT button, insert a clip or something into the hole to the right of the EJECT button and pull the tray out. If the tray doesn't still come out, click the CD-ROM icon in the "My Computer" window with the right button of the mouse and then click "EJECT". |
| Super disk cannot be ejected. | |
| Is the computer in operation? | Since the super disk drive secures the super disk by the electronic lock, the disk can be ejected only when the computer is in the operation status. If the super disk cannot be ejected for some reason, insert a thin linear wire such as a straightened paper clip or the like into the emergency disk ejecting hole and push it into the depth. The disk will be resultingly ejected from the drive. |