Fujitsu MCJ3230SS 사용자 설명서
4.2 Various Processes
C156-E224-01EN
4-9
4.2.7 LED indications
The ODD notifies the operator of a serious error by turning on or blinking an
LED. Table 4.2 lists the LED indications and the corresponding operations.
LED. Table 4.2 lists the LED indications and the corresponding operations.
Table 4.2 LED indications
LED indication
Operation
Off
Waiting for a command
Command processing
Seek operation
Read/write processing (including cache
processing)
processing)
Formatting
Power-on diagnosis
Spinning up (including returning from standby
mode)
mode)
On
Spinning down (including shifting to standby
mode)
mode)
Blinking
(on for 0.1 s and off for 0.7 s repeatedly)
(on for 0.1 s and off for 0.7 s repeatedly)
Starting firmware dedicated to downloading *1
Blinking
(on for 0.1 s and off for 0.1 s repeatedly)
(on for 0.1 s and off for 0.1 s repeatedly)
A power-on diagnosis error occurred.
Blinking
(on for 0.4 s and off for 0.4 s repeatedly)
(on for 0.4 s and off for 0.4 s repeatedly)
A thermal alarm occurred.
Blinking
(on for 0.1 s and off for 0.3 s repeatedly)
(on for 0.1 s and off for 0.3 s repeatedly)
An error occurred during writing to the write
cache *2.
cache *2.
*1
ODD control firmware is stored in flash ROM and can be downloaded from
the host with the WRITE BUFFER command. However, if a problem such
as a power failure occurs during downloading, downloading is interrupted
and the microcodes in the control firmware may be damaged. In such a
case, to download the microcode data again, the ODD starts emergency
download firmware that supports only the WRITE BUFFER command and
other basic commands.
the host with the WRITE BUFFER command. However, if a problem such
as a power failure occurs during downloading, downloading is interrupted
and the microcodes in the control firmware may be damaged. In such a
case, to download the microcode data again, the ODD starts emergency
download firmware that supports only the WRITE BUFFER command and
other basic commands.
*2
The LED that is blinking because of a write cache write error stops blinking
when the media is ejected.
when the media is ejected.