Panasonic Cf Y2dwazzkm Owners Manual

21
Operation
Use a RAM module meeting the RAM module specifications below. If a module is used that
does not meet the specifications, there are cases in which data may become unusable or the
computer may not operate properly.
RAM module specifications: ( page 43)
172 pins, Micro DIMM, 2.5 V, DDR SDRAM, PC2700
Contact your technical support office to confirm recommended memory.
RAM Module
Inserting / Removing the RAM Module
CAUTION
RAM modules are extremely sensitive to static electricity. There are cases...

22
Operation
RAM Module
4Press the RAM module down until the right and left hooks (G) lock into place.
  When pressing down the module, the right and left hooks will open slightly and
will return after locking.
Removing the RAM module
1Gently open the left and right hooks (H).
The RAM module will be raised at an angle.
2Gently remove the RAM module from the slot.
4Put the cover back in place.
1Insert the cover at an angle, then fit it into place.
2Fasten the screw.
Whether the RAM module is properly...

23
Operation
Environment
Place the computer on a flat stable surface. Do not place the computer upright or allow it
to tip over.  When the computer receives extremely strong shock after falling, the hard
disk may become inoperable.
In use: Temperature: 5 °C to 35 °C  {41 °F to 95 °F}
Humidity     : 30% to 80% RH  (No condensation)
Not in use: Temperature: -20 °C to 60 °C  {-4 °F to 140 °F}
Humidity     : 30% to 90% RH  (No condensation)
 Places not to use your computer
Such areas may result in damage to...

24
Operation
When Using Peripheral Devices
Pay strict attention to the following points to avoid damage to the computer, peripheral devices,
cables, etc.  Also, in addition to following this manual and the Reference Manual, carefully read
the instruction manuals for the peripheral devices being used.
Use only peripheral devices that conform to the computer’s specifications.
Connect the devices properly, paying close attention to the condition and position of the
connectors.
If a connection cannot be made...

25
Operation
Windows Update
Windows Update enables you to update Windows on your computer by applying the latest
patches and service packs for Windows.
Connect the Internet and perform it from [start] - [All programs] - [Windows Update].
Do not apply “Driver Updates” even if a message to update a driver appears. If a driver
update is required, contact your technical support office (
 page 45).
Be sure to perform Windows Update after reinstallation ( page 34).
The installed patches can be confirmed in...

26
Operation
DVD-ROM & CD-R/RW Drive
Useful Information
Wireless LAN
To prevent theft of data or unauthorized access to the hard disk via a wireless LAN.
If you plan to use wireless LAN functions, we recommend that you do so only after making
the appropriate security settings, such as for encryption.
For instructions on settings for wireless LAN and cautions during use, select [start]-
[Reference Manual], and refer to Wireless LAN.
Before using a wireless LAN, turn the wireless LAN on using the following...

27
Operation
Do not access the drive until after the disc cover is closed and the DVD-ROM & CD-R/
RW drive status indicator 
 changes to lighting from blinking.
To remove a disc when the disc cover cannot be opened or when the computer is powered
off:
Insert a pointed object (e.g., the bent-out tip of a paper clip, or the tip of a ballpoint pen)
into the emergency hole (C), and then move in the direction of the arrow.
The disc cover can be opened up to an angle of 70 degrees. Do not force the cover open...

28
Troubleshooting
List of Error Codes
When turning on the computer, if one of the following error codes or messages is displayed, follow the instructions shown below.
If the problem persists, or if the error code or message displayed is not shown here, contact your technical support office (
 page
45).
Error Code/Message
0211: Keyboard error
0251: System CMOS checksum
bad - Default configuration
used
0271: Check date and time set-
tings
0280: Previous boot incomplete
- Default configuration used
Press...

29
Troubleshooting
Dealing with Problems (Summary)
When a problem occurs, refer to this page.  The “Reference Manual” also contains detailed information.  If a problem appears to be
related to a software application, read the software related manual.  If you still cannot troubleshoot the problem, contact your
technical support office (
 page 45). You can use the PC Information Viewer to check the computer’s usage status. ( 
“Dealing with Problems (Advanced)”)
The power indicator or bat-
tery indicator is...

30
Troubleshooting
Dealing with Problems (Summary)
No display after powering on
The power has not been
turned off, but after a cer-
tain period of time, there is
no display
When the battery pack is
used, the screen is darker
than when the AC adaptor
is connected
The cursor cannot be con-
trolled properly
An afterimage appears (e.g.,
green, red, and blue dots re-
main on the display) or there
are dots not displaying the
correct colors
The screen becomes disor-
dered
The external display no
longer displays...