6
Smart protection system
When the protection system detects a fault, the amplifier will shut down and the
PROT
LED (RED)
will flash. For each type of fault, the
LED
will flash a certain number of times
repeatedly indicating the cause, according to the protection table:
LED indicator
Diagnostic:
Short circuit or output overload.
Diagnostic:
Supply voltage less than 9V.
Solution:
Check that the speaker cables are well insulated and that the output impe-
dance doesn’t exceed that supported by the amplifier.
Solution:
Check voltage of battery or power supply.
Solution:
Check if the amplifier is in a ventilated place or if the coolers are not obs-
tructed. Keep the amplifier turned on for a few minutes for the coolers to assist in the
cooling process.
Solution:
Check voltage of battery or power supply.
Diagnostic:
Excessive temperature. When the amplifier reaches approximately 194°F,
audio is stopped and the coolers run at maximum speed to speed up the cooling process
of the internal components.
Diagnostic:
Supply voltage greater than 17V.
blink
1x
blink
3x
blink
4x
blink
2x
P O W E R
/ P R O T
POWER (blue light):
Indicates
the amplifier is operating when
lit.
PROT (red light):
Indicates that the amplifier detected faults and
entered protection mode. Check the
protection table
for possible
failure and turn the amplifier back on.
