IBM 755X (9545) User Manual
Related Service Procedures
This section provides information about the following:
“Status Indicators”
“How to Run the Diagnostics” on page 421
“Error Log” on page 421
“Checking the Installed Devices List” on page 422
“Password Combinations” on page 422
“How to Run the Low Level Format” on page 423
“PC Test Card LED” on page 423
“Fn Key Combinations” on page 423
“How To Run the Keyboard Diagnostics” on page 424
Status Indicators
The system status indicators show the current computer
status in different colors (green, yellow, and orange).
status in different colors (green, yellow, and orange).
Symbol
Color
Meaning
Blinking green
Speaker sounds
Green
Battery fully
charged
charged
Yellow
Battery usable
Orange
Battery low, or
if is green,
if is green,
the operational
charge cannot
be performed.
charge cannot
be performed.
Blinking orange
Battery almost
depleted
depleted
All blinking
Battery storage
switch is set off
switch is set off
Orange, green,
or yellow
or yellow
if is blinking
twice every 3
seconds, the
battery is
discharging.
seconds, the
battery is
discharging.
Green
Battery charging
Orange
PC card in-use
Orange
Diskette drive
in-use
in-use
Orange
Hard disk drive
in-use
in-use
Green
Keys in Num
Lock mode
Lock mode
Green
Keys in Caps
Lock mode
Lock mode
Green
Keys in Scroll
Lock mode
Lock mode
420
IBM Mobile Systems HMM