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1-8. Measures when ALARM Indicator Lights up
If a fault is detected in this unit, ALARM indicator lights up or blinks. Moreover, WARMING UP
indicator also lights up by a type of fault.
ALARM
Slow blinking
(approx.1 sec. intervals)
Fast blinking
(appox.0.1 sec. Intervals)
Slow blinking and
fast blinking lternate
*2
Light up
*1: The handling methods is explained below.
*2: Repeatedly lights up for 1 sec., then blinks 0.1 sec. interval for 1 sec.
In the Case of 1
1
1
1
1
This error does not effect performance itself just after occurrence. However, if the unit is used continu-
ously in this state, HDD might be damaged due to increase internal temperature.
(1) Stop the operation of the hybrid recorder to abort the access to BKNW-116.
(2) Turn off the power of this unit and the hybrid recorder.
(3) Remove the upper lid to check the fans of inside of this unit.
(4) Check that all fans rotate after turning on the power.
(5) When the cause is found, turn off the power of this unit and hybrid recorder.
(6) Measure to recover from the error, then turn on the power again.
In the Case of 2
2
2
2
2
At that time, LED on the IF-715 board lights up. Therefore, we can check that a fault is detected in warm
up circuit of which HDD unit. (Refer to "1-3-2. IF-715 Board")
This error does not effect performance itself just after occurrence. However, if the unit is used continu-
ously in this state, HDD might be damaged due to increase internal temperature.
(1) Identify the abnormal HDD unit by the LEDs on the IF-715 board.
(2) Check the circuit of SE-378 board of relevant HDD unit.
BKNW-116
WARMING UP
Problem
Stays unlit
Cooling fan fault
Stays unlit
Warm up circuit over current detected
Lights up
Temperature is so low that the peripheral
temperature of HDD does not rise over 5 dC
in approx. 30 minutes.
Stays unlit
Both cooling fan fault and warm up circuit
over current detected.
Lights up
Cooling fan fault and temperature is so low that
the peripheral temperature of HDD does not rise
over 5 dC in approx. 30 minutes.
Stays unlit
Instantaneous power supply failure
1-8. Measures when ALARM Indicator Lights up
* * * * * 1
Measures
1
2
3
4
5
6
1-9 (E)
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