![background image](http://html1.mh-extra.com/html/panasonic/toughbook-cf-74jdmbd2m/toughbook-cf-74jdmbd2m_reference-manual_3708928077.webp)
77
Troubleshooting (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 (
Shut Down
Cannot shut down or restart Windows.
z
Remove USB devices.
z
It may take one or two minutes to shut down.
Standby/Hibernation
Cannot enter standby or hibernation.
z
Remove USB devices temporarily. If the problem persists, restart the computer.
z
It may take one or two minutes to enter standby or hibernation.
z
The computer may not enter standby when the computer is communicating via
modem.
z
The computer does not enter standby or hibernation immediately after resum-
ing. Wait approximately one minute.
z
When a disc formatted using B’s CLiP is in the DVD drive, the computer will not
enter standby or hibernation. Remove the disc.
Cannot enter standby or hibernation
automatically.
z
Disconnect peripheral devices.
z
When a disc formatted using B’s CLiP is in the DVD drive, the computer will not
enter standby or hibernation. Remove the disc.
The computer does not resume.
z
If you press and hold the power switch for four seconds or longer, the power will
be turned off forcibly and the computer will not resume. In this case, all unsaved
data will be lost.
z
You disconnected the AC adaptor and the battery pack while the computer was
in standby mode. If the computer’s power supply is disconnected in standby
mode, unsaved data will be lost and the computer will not resume.
z
The battery is exhausted. Standby and hibernation consume some power.
The computer will not automatically
enter standby/hibernation mode.
z
If you connect to a network using wireless LAN function, select the profile and
connect to the access point(
z
If you do not use wireless LAN function, turn off wireless LAN function(
).
z
Make sure that you are not using any software that regularly accesses the hard
disk.
Sound
No sound.
z
Press
Fn
+
F4
or
Fn
+
F6
to cancel mute.
Distorted sound.
z
Performing
Fn
key combinations sometimes causes sound distortion. Stop and
restart playback.