Yamaha C 450 Manual do Proprietário - Página 4

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Controls and Functions

Front Panel

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 TEMP indicator
When the temperature of the heat sink exceeds 85
degrees Celsius, this indicator will light red.
3 PROTECTION indicator
This red LED indicator lights up for approximately 3
seconds when the amplifier is powered ON, indicating
that the soft-start protection system is working. No
sound is output during soft-start up. If one of the
protection systems is activated during normal use, this
indicator lights up and no sound is output. The
speaker system is actually disconnected from the
amplifier outputs when this indicator lights up. The
protection systems are activated when overheating
occurs or a DC voltage is present at the amplifier
outputs. If the problem is corrected, the protection
systems deactivate automatically, this indicator goes
out, and normal amplifier operation is resumed.
2
2
3
TEMP
PROTECTION
POWER
ON
OFF
1
4
CLIP
A
B
SIGNAL
5
4 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.
5 SIGNAL indicators
These green LED indicators light up when the
respective channel's output signal exceeds 2 Vrms.
This is equivalent to 1/2 watt into 8 , 1 W into 4 .