Panasonic Toughbook CF-74JCL02AM Reference Manual

Also see for CF-74 Series: Operating instructions Supplementary guide Supplementary guide Supplementary instructions Operating instructions

93Troubleshooting (Advanced)Refer to the following instructions when a problem occurs. If the remedies indicated in the chart do not solve the problem,contact Panasonic Technical Support. For a software problem, refer to the instruction manual of the software.• To check the computer’s usage status (Î page 105). Shut DownCannot shut down or restart Windows. z Remove USB devices.z It may take 1 or 2 minutes to shut down. DisplayThe screen does not become brighteven if pressing Fn+F2.z The brightness is set low to avoid malfunction where surrounding temperatureis high. Use it in an environment of between 5°C and 35°C. Standby or HibernationCannot enter standby or hibernation. z Remove USB devices temporarily. If the problem persists, restart the computer.z It may take 1 or 2 minutes to enter standby or hibernation.z The computer may not enter standby when the computer is communicating viamodem.z The computer does not enter standby or hibernation immediately after resum-ing. Wait approximately 1 minute.z When a disc formatted using B’s CLiP is in the CD/DVD drive, the computer willnot enter standby or hibernation. Remove the disc.Cannot enter standby or hibernationautomatically.z Disconnect peripheral devices.z When a disc formatted using B’s CLiP is in the CD/DVD drive, the computer willnot enter standby or hibernation. Remove the disc.z If you connect to a network using wireless LAN function, select the profile andconnect to the access point (Î page 70).z If you do not use wireless LAN function, turn off wireless LAN function (Î page69).z Make sure that you are not using any software that regularly accesses the harddisk.The computer does not resume. z If you press and hold the power switch for 4 seconds or longer, the power willbe turned off forcibly and the computer will not resume. In this case, all unsaveddata will be lost.z You disconnected the AC adaptor and the battery pack while the computer wasin standby. If the computer’s power supply is disconnected in standby, unsaveddata will be lost and the computer will not resume.z The battery is exhausted. Standby and hibernation consume some power.