Sony BCU-100 Maintenance Manual page 29

1. Checking the basic items
For the following symptoms, perform the checks described in the table.
Power does not turn on
Cannot connect to the network
Temperature error warning is
displayed
2. Checking the status of the front panel LED
Check if the front panel LED lights in the same way as it does when the BCU-100 operates normally.
The details of the errors can be checked with the POWER LED and message LED; and the status LED
and error LED inside the front panel.
For the error list, refer to "1-9-5. Error Display"
When an error occurs mainly in the following blocks, it is indicated with the LED display.
Power supply
Fan
Battery
Internal temperature
Main device (Cell/B.E., RSX)
Hardware
SYSCON
The LED indication changes depending on the level of abnormality.
Error LED Message LED
Blink (red) Blink (blue)
Light (red) Blink (red)
3. Checking by executing the self-diagnostic function in the Diag mode
Use the Diag mode diagnostic function in the offline state, and identify the defective location and details.
When an error is detected, an error code is displayed. Check "1-9-6. Error Code List" and take the
necessary measures.
BCU-100 MM
. Check if the power cord is connected correctly.
. Check if the power supply unit is installed correctly.
. Check if the network cable is connected correctly.
. Check if the NETWORK-1 terminal and the NETWORK-2 terminal are connected
correctly.
. Check if the front and the rear ventilation hole are not blocked or dusty. To check
the front ventilation hole, remove the front panel.
Power supply fan deterioration, Replacement time warning
Abnormal revolution speed, Replacement time warning
Voltage drop warning
Abnormal temperature warning
Abnormal operation warning
Abnormal operation warning
Abnormal operation warning
Condition
Warning (when an abnormality of low urgency is detected)
Error (when an abnormality of high urgency is detected, and the BCU-100
is forcibly shut down)
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