8.1
Cooling Fans
The
JRL-2000F
is equipped with two cooling fans, which are activated under the following
conditions:
The cooling fan in the power amplifier
This fan activates when the
PA
heat sink temperature exceeds approximately
50°C
and turns
off after the teperature drops below approximately
40°C.
The cooling fan in the power supply unit
This fan activates when the power supply heat sink temperature exceeds approximately
45°C
and turns off after the teperature drops below approximately
40°C.
8.2
Causes of Alarms and Corrective Measures
The
JRL-2000F
is equipped with alarm circuits so that all internal electronic circuits can be
protected from stresses and overloads caused by overdrive and abnormal output loads. If
an alarm occurs, verify the cause and take the appropriate actions as described below.
When an alarm is activated, the alarm number is shown on the central display of the
JRL-
2000F.
If the alarm number is lit steadily, the alarm state is currently in effect. If it is blinking,
the alarm condition has occured but is no longer in effect.
All alarms can be cancelled by turning the
IPoWERl
switch off and on again
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