IBM L40 SX, Quick Reference

Page: 87 / 120

Problem Action
A wrong battery-
status indicator
remains on. Have the system serviced.
A fully-charged
rechargeable
battery Is
discharged too
soon.
1.Check to see if the rechargeable battery you are using has
been charged more than 10 hours with the AC adapter.
2.Check to see if the Auto option of the Set Features Menu is
set correctly and the economy switch is set to automatic
mode. For automatic mode and the Auto option, see pages
25 and 60.
3.Repeat complete charge and discharge several times, if the
battery has not been used for a long period.
Note: Usually, a complete charge makes it possible to use
the battery for approximately 3 hours. However, a fully-
charged battery gradually loses its charge if not used for a
month or so. In this condition, the battery does not reach full
charge by charging it only once.
4.Have the rechargeable battery checked or the system
serviced.
Battery-Low
Indicator remains
on. The over-current protection device inside the rechargeable
battery has been activated. Wait for several hours and use it
again. If the problem still appears, replace the rechargeable
battery or have the system serviced.
Solving Computer Problems 75
Power Problems
Keyboard, Pointing Device Problems
Problem Action
All or some keys on
the keyboard do not
work. If the testing programs on the Reference Diskette do not find
the problem, have the system serviced.
The mouse or
pointing device
does not work.
If the testing programs on the Reference Diskette do not find
the problem, check the instructions supplied with the mouse or
pointing device for additional testing information. If no testing
information is available, have the mouse or pointing device
serviced.
The numeric keypad
does not work.
Check if the cable between the numeric keypad and the
computer is properly connected.
If the cable check is OK, have the system serviced.