13
Temperature protection
NOTE
If the CPL turns constant orange, the output is muted, and the -4dB signal
LED is on, then the amplifier has gone into maximum current protection. This
situation is caused by an excessive input signal and is not due to a short
circuit. Turn down the input signal to avoid or remedy this situation.
Power Average Limiter(PAL)
Thermal measurement points are provided on each output channel as well as on the
power supply. These indicators will, if the pre-specified temperature level is exceeded,
give a high temperature warning. This warning condition I indicated by a flashing TEM
LED on the front panel.
As the amplifier approaches a thermal protection threshold, the warming LED sequence
will start with short “ on-time” bursts. If the amplifier continues to overheat and
approaches the temperature limit, the flashing sequence will be defined by longer and
activated.
If the temperature becomes too high to continue safe operation, the overheated output
channel(s) will be muted until the temperature returns to an acceptable level.
Fully active temperature protection (with muting) is indicated by a constantly illuminated
TEM LED. Temperature measurements will continue at 6 second intervals. The output
will un-mute when the channel or power supply returns to a safe operating temperature.
Soft-Start
The Power Average Limiter (PAL) controls the current-drawing relationship between the
power supply and the main inlet. PAL limits the maximum.
Average power consumption according to the power supply capabilities, ensuring that
the PSU will not overload. In addition, in the larger models that potentially could pull
more current from the mains than the mains fuses are specified to handle (more than16
A), PAL limits the amplifier’s maximum current draw to prevent blowing the mains fuse.
High powered amplifiers with inadequate inrush limiting can pull considerable current
from the mains at turn-on. This can result in tripping of fast-acting mains breakers. Such
is not the case with TD14000 amplifier. The TD14000amplifier have very low inrush
power as the capacitors are charged slowly and in a controlled manner ensuring that
breakers will not trip.
Precautions Introduction Front Panel Rear Panel
Operation and Performance
AMPLIFIER
TD
-
14000
Summary of Contents for TD-14000
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