General Precautions; Protection Circuitry - Cadence QSA-8.2 User Manual

General precautions

Before installing and using your new
CADENCE
amplified subwoofer ,
please become familiar with all the
information contained in this manual.
Please keep this manual in a safe
place for future reference.
* Do not open or attempt to repair this
unit yourself. Dangerous high voltages
are present which may result in electric
shock. Refer any repairs to a qualified
service technician.
* To avoid risk of electronic shock or
damage to the unit, do not permit any
of this equipment to become damp or
wet from water or drinks. If this does
occur, immediately unplug the power
wires and send the product to your
local dealer or service center as soon
as possible.
* If there is smoke or any peculiar odor
present during use or if there is damage
to any of the component enclosures,
immediately unplug the power cord
and send the product to your local
dealer or service center as soon as
possible.
SHOCK HAZARD! Do not open the case
of this product. There are dangerous
voltages present within the unit. There are
no user-serviceable parts within the unit.

Protection circuitry

The built-in amplifier incorporates
special protection circuitry which will
disable the amplifier if any of the
following should occur:
* Input overload
* Short circuit
* Extremely high temperatures
If any of these conditions is detected,
the amplifier will go into a self-preservation
mode, and the PROTECT LED on the
control panel will glow in RED color.
What should I do if the POWER STATUS
LED turns RED?
If you observe that the POWER STATUS
LED IS RED, please check the system
carefully to determine what has caused
the protection circuit to engage.
To reset the amplified subwoofer when
it is in PROTECT mode, turn off the
power to the system (usually by turning
off the head unit or other signal source
which feeds the amplifier) and then turn
it on again.
If the internal amplifier has shut down
due to thermal overload, you should first
allow it to cool down before restarting.
If the shut down was due to either an
input overload or a short circuit, be sure
to correct these conditions before
attempting to power up the subwoofer
again.
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