Display

No display.

The external display is selected. Press

 

+

 

or

 

 

+

 

to switch the display. Wait

 

 

 

Fn

F3

 

P

 

until the display has been switched completely before pressing

 

+

 

or

 

 

+

 

 

 

Fn

F3

 

P

 

again.

When using an external display, Check the cable connection. Turn on the display.

Check the settings of external display.

The display is turned off by the power-saving function. To resume, do not press the

direct selection keys, but press any other key like Ctrl.

The computer entered sleep or hibernation by the power-saving function. To resume, press the power switch.

The screen is dark.

The screen is darker when the AC adaptor is not connected. Press

Fn

+

 

 

F2

and adjust

 

the brightness. As you increase the brightness, battery consumption increases.

 

You can separately set the brightness for when the AC adaptor is connected and when

 

not connected.

 

Press

Fn

+

F8

to turn off the concealed mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The screen does not be-

The brightness is set low to avoid malfunction where surrounding temperature is high.

come bright even if pressing

Use it in an environment of between -10 °C and 50 °C {14 °F to 122 °F}.

Fn + F2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The screen is disordered.

Changing the number of display colors and resolution may affect the screen. Restart the

 

computer.

 

Connecting/disconnecting an external display may affect the screen. Restart the com-

 

puter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

During Simultaneous display,

When using the Extended Desktop, use the same display colors for the external display

one of the screens becomes

as those used by the LCD.

disordered.

If you continue to experience problems, try changing the display.

 

Click

(Start) - [All Programs] - [Panasonic] - [Display Selector].

 

Simultaneous display cannot be used until Windows startup is complete (during Setup

 

Utility, etc.).

The external display does

If the external display does not support the power saving function, it may not work nor-

not work normally.

mally when the computer enters the power saving mode. Turn off the external display.

<Only for model with GPS>

Operate the following steps.

The cursor cannot be con-

A Restart the computer and press

F2

or

Del

while [Panasonic] boot screen is dis-

trolled properly.

played.

 

B Set [GPS] to [Disable] in the sub-menu of [Serial and Parallel Port Settings] in the

 

[Advanced] menu of the Setup Utility.

 

C Press

F10

and select [Yes] at the confirmation message, and press

Enter

.

 

The computer will restart.

 

D Log on to Windows as an administrator.

 

E Click

 

 

 

(Start) and input “c:\util\drivers\gps\GPS.reg” in [Search programs and

 

files], and press

 

.

 

 

 

Enter

 

F Click [Yes], click [Yes], and click [OK].

 

Then restart the computer.

 

G Press

F2

while [Panasonic] boot screen is displayed.

 

H Set [GPS] to [Enable] in the sub-menu of [Serial and Parallel Port Settings] in the

 

[Advanced] menu.

 

I Press

F10

and select [Yes] at the confirmation message, and press

Enter

.

Troubleshooting

25

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Image 25
Panasonic CF-31 appendix Display, No display

CF-31 specifications

The Panasonic CF-31, part of the Toughbook line, is a highly durable and versatile laptop designed for professionals who operate in demanding environments. Built to withstand the rigors of outdoor work, it combines robust construction with advanced technology to deliver reliable performance.

One of the standout features of the CF-31 is its rugged design. The laptop meets military standards (MIL-STD-810G) for toughness, making it resistant to drops, shocks, vibrations, and even extreme temperatures. It is also water-resistant and dustproof, further enhancing its usability in harsh conditions. With a magnesium alloy case and shock-mounted hard drive, the CF-31 is built to endure challenging workspaces.

The CF-31 is powered by Intel’s powerful processors, which ensure brisk performance for multitasking and running demanding applications. Depending on the specific configuration, it can come with Intel Core i5 or i7 processors that provide a combination of processing speed and energy efficiency. With options for solid-state drives (SSDs), the laptop enhances data access speeds, contributing to faster boot times and application launches.

Regarding display technology, the Panasonic CF-31 features a 13.1-inch sunlight-readable touchscreen, making it suitable for outdoor use where visibility can be a challenge. The screen boasts a high brightness level, allowing users to view content clearly even in direct sunlight. The multi-touch functionality adds to its ease of use, catering to those who prefer a more intuitive interface.

Connectivity is another strong point of the CF-31, equipped with a range of ports such as USB 3.0, Ethernet, HDMI, and even legacy ports to support various peripherals and devices. It also offers optional features like 4G LTE for mobile connectivity in the field, ensuring that users remain connected no matter where their work takes them.

The keyboard is designed for use in challenging conditions, featuring a spill-resistant layout with an adjustable backlight for low-light environments. This makes it suitable for professionals such as field engineers, first responders, and military personnel who require dependable technology in their day-to-day tasks.

Battery life is impressive, with options for extended batteries that can last up to 18 hours, enabling all-day use without the need for frequent recharging. This feature is essential for users in the field who may not have easy access to power sources.

Overall, the Panasonic CF-31 embodies a blend of ruggedness, processing power, and user-friendly features, making it a top choice for professionals needing a reliable laptop in demanding conditions.