IBM ThinkPad R30 Hardware Maintenance Manual page 64

Symbol
(3) Caps lock
(4) Scroll lock
(5) Power on
(6) Battery status
(7) Standby mode
FRU tests
The following table shows the applicable test for each FRU
using PC-Doctor.
FRU
System board
Power
LCD unit
58
ThinkPad R30 and R31 HMM
Color
Green
Green
Green
Green
Blinking
green
Blinking
orange
Orange
Green
Applicable test
1. CPU/Coprocessor (Diagnostics)
2. System board (Diagnostics)
Battery (Diagnostics)
1. Video Adapter (Diagnostics)
2. Video (Interactive Tests)
Meaning
Caps Lock mode is
enabled. All alphabetic
characters (A-Z) are
entered in capital letters
without the Shift key being
pressed. You enable or
disable the Caps Lock
mode by pressing the Caps
Lock key.
Scroll Lock mode is
enabled. The Arrow keys
can be used as
screen-scroll function keys.
The cursor cannot be
moved with the Arrow
keys. Not all application
programs support this
function. You enable or
disable Scroll Lock mode by
pressing the ScrLk key.
The computer is
operational. This indicator is
on when the computer is
on.
Enough battery power
remains for operation.
The battery power charges
up to 80% full power
The battery pack needs to
be charged
The battery pack is being
charged.
The computer is in standby
mode