Password keyboard, Internal display panel – Toshiba Satellite L500D User Manual
Page 145
 
User’s Manual
9-7
L500/L505/L500D/L505D
Real Time Clock
Password
Keyboard
Keyboard problems can be caused by the setup and configuration of the 
computer - please refer to Chapter 5, 
for further information.
Internal display panel
Apparent display panel problems may be related to the computer’s setup 
and configuration - please refer to Chapter 7, 
for
further information.
Problem
Procedure
The following 
message is displayed 
on the LCD:
RTC battery is low or 
CMOS checksum is 
inconsistent. Press 
[F2] key to set Date/
Time.
The RTC battery charge has become exhausted, 
you should set the date and time in within the 
BIOS setup screen through the following steps:
1. Press [F2] key. BIOS setup will boot up.
2. Press [F5]/[F6] to set the date in [System
Date].
3. Press [F5]/[F6] to set the time in [System
Time].
Problem
Procedure
Cannot enter 
password
Please refer to the
section in Chapter 6,
for further information.
Problem
Procedure
Output to screen is 
garbled
Please refer to your software’s documentation to 
ensure that its is not remapping the keyboard in 
any way (remapping involves changing or 
reassigning the function of each key).
If you are still unable to use the keyboard, you 
should contact your reseller, dealer or service 
provider.
Problem
Procedure
No display
Press the FN + F5 hot keys to adjust the display 
priority, and to make sure it is not set for output to 
an external monitor.