9. TROUBLESHOOTING
9-2
9.1.2 Problems that occur after the OS startup
The following is a list of problems that occur after the desktop is displayed (after the OS
startup).
(1) The alarm lamp is lit and the Digital LEDs for Status indication show alphanumeric
characters. Alternately, just the Digital LEDs for Status indication show alphanumeric
characters. (See page 9-7.)
(2) The processing speed of the equipment is slow. (See page 9-9.)
(3) The equipment does not respond. (See page 9-9.)
(4) The equipment automatically goes into the standby mode, or restarts.
(See page 9-10.)
(5) The screen flickers or blacks out. (See page 9-11.)
(6) In the screen resolution setting, an unconnected display is shown. (See page 9-11.)
(7) Screen display blinks or screen contents are displayed again after blackout in some cases.
(See page 9-12.)
(8) A blue screen is/was displayed. (See page 9-11.)
(9) The equipment cannot connect to the network. (See page 9-12.)
(10) The network connection is unstable, or the connection speed is slow.
(See page 9-12.)
(11) A CD or DVD cannot be recognized or cannot be read or written to.
(See page 9-13.)
(12) Writing to a CD or DVD fails. (See page 9-13.)
(13) A CD or DVD cannot be ejected. (See page 9-14.)
(14) Keyboard input is not accepted. (See page 9-14.)
(15) Mouse input is not accepted, or a cursor /button does not work normally.
(See page 9-15.)
(16) A USB device (other than a keyboard and a mouse) cannot be recognized or does not
work. (See page 9-15.)
(17) No sound is generated, or the sound is extremely faint. (See page 9-16.)
(18) A serial port or a parallel port does not work properly. (See page 9-16.)
(19) The RAS external contact port does not work properly. (See page 9-16.)
(20) The equipment cannot be shut down. (See page 9-17.)
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