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Controls and Functions
Front Panel
1
1
POWER switch and indicator
This is the main POWER switch. Press to power ON
the amplifier. Press again to power OFF. The POWER
indicator lights up when the amplifier is powered ON.
2
SIGNAL indicators
These green LED indicators light up when the
respective channel's output signal exceeds 2 Vrms.
This is equivalent to 1/2 W into 8 , 1 W into 4 .
3
CLIP indicators
These red LED indicators light up when the respective
channel's output signal distortion exceeds 1% (i.e.
clipping). Output signal clipping is usually due to
excessive input signal levels.
4
POWER
2
ON
OFF
POWER
SIGNAL CLIP
CH A
4
3
4
PROTECTION
CLIP
SIGNAL
CH B
PROTECTION indicator
These LED indicators light up to indicate that the
protection circuit is working. The speaker system is
disconnected from the amplifier outputs and no sound
is output from the speakers.
The protection circuit is activated in the following
situations:
• When the amplifier is powered on:
The protection circuit is activated for approximately 3
seconds when the amplifier is powered on. After 3
seconds, the protection system is deactivated auto-
matically, and the amplifier is ready to use.
• If a DC voltage is present at the amplifier's
outputs:
If the DC voltage problem is corrected, normal
amplifier operation resumes.
• If overheating occurs:
Turn off the power to the amplifier to cool down the
unit and consult the Precautions section of this manual
to improve the vent condition, if necessary. Turn the
power on to the amplifier after it cools down.
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