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3-4. Indicator on the Front Panel
3-4. Indicator on the Front Panel
n
This section applies to the unit which the DEC-99 board
with suffix -13 and higher is installed.
If the indicator on the front panel is flashing or lit in red, it
is judged that any one of the following three items are
causes.
. An overcurrent flowed to the LNB (Low Noise Block)
. The fan motor stopped.
. Abnormality detected in the power unit
Follow the steps below.
1. Put S200-6 (A-5) on the DEC-99 board to OFF.
n
S200-6: LNB Power Select switch
ON:
Power is provided from the IF terminal.
OFF:
Power is not provided from the IF terminal.
2. Turn the power off and on again, check the indicator
on the front panel.
When the indicator is lit in green, it is judged that an
overcurrent is flowing to the LNB.
When the indicator is flashing or lit in red, it is judged
that the fan stops or abnormality is generated in the
power unit.
When it is judged that an overcurrent is flowing to
the LNB:
1. Check that there is no leakage of current at the cable
which is connected to IF connector on the rear panel.
2. Turn the power off and on again, check the indicator
on the front panel.
When the indicator is flashing or lit in red, it is judged
that abnormality is generated in the DEC-99 board or
the MB-762 board.
→ Replace the DEC-99 board or MB-762 board.
(Refer to the Section 1-6-1 or 1-6-3 in maintenance
manual.)
3. Put S200-6 on the DEC-99 board to original position.
3-10 (E)
When it is judged that the fan stops or
abnormality is generated in the power unit:
1. Check the rotation of fan motor.
When the fan motor stops, it is judged that abnormality
is generated in the fan motor.
→ Replace the fan motor. (Refer to the Section 1-5-2
in the maintenance manual.)
When the fan motor rotates properly, it is judged that
abnormality is generated in the power unit.
→ Replace the switching regulator. (Refer to the
Section 1-5-1 in the maintenance manual.)
2. Turn the power off and on again, check the indicator
on the front panel.
When the indicator is flashing or lit in red, it is judged
that abnormality is generated in the DEC-99 board or
the MB-762 board.
→ Replace the DEC-99 board or MB-762 board.
(Refer to the Section 1-6-1 or 1-6-3 in maintenance
manual.)
3. Put S200-6 on the DEC-99 board to original position.
BDX-D1000
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