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Supercharger 750K
AMPLIFIER OPERATION
Issue 3
POWER ON
Once all connections are made, switch on the unit, using
the ON/OFF switch on the back panel. On the front
panel of the 750K the front LED glows red to indicate
mains is present and the unit is in “standby” mode; and
outputs are muted, so no sound will be heard from the
speakers.
The 750K is designed to switch on automatically, when
a signal is detected at the selected input (provided the
mains switch at the rear is set to “on”).
When a signal is detected, the blue LED will glow to
indicate unit is now operating. At this point sound
output is now available.
Note: if the amplifier sees no signal on selected input
for more than 30 minutes, it will automatically revert to
standby mode.
OVERHEAT
Should any internal overheat situation have been
reached, the amplifier will cut out, there will be no more
sound output, and the orange LED will light.
Unit will remain in this state until it has cooled down
again. If overheat mode persists, check wiring for errors;
driver amplifier for instability; and locate unit where it
can cool down more easily.
FAULT CONDITION
Should the amplifier be driven into clipping for
sustained periods or a wiring fault develop, the red
mains LED will flash repeatedly and sound output will
be disabled (muted). Check wiring and if all looks
secure, reset the unit:
- power off for 30 seconds using rocker switch on
rear panel
- switch rocker switch back to on position
- apply music signal to switch unit back on
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